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 74HC243
Quad bus transceiver; 3-state
Rev. 03 -- 12 November 2004 Product data sheet
1. General description
The 74HC243 is a high-speed Si-gate CMOS device and is pin compatible with low power Schottky TTL (LSTTL). The 74HC243 is specified in compliance with JEDEC standard no. 7A. The 74HC243 is a quad bus transceiver featuring non-inverting 3-state bus compatible outputs in both send and receive directions. The 74HC243 is designed for 4-line asynchronous 2-way data communications between data buses. The output enable inputs (OEA and OEB) can be used to isolate the buses. The 74HC243 is similar to the 74HC242 but has non-inverting (true) outputs.
2. Features
s s s s s Non-inverting 3-state outputs 2-way asynchronous data bus communication Low-power dissipation Complies with JEDEC standard no. 7A ESD protection: x HBM EIA/JESD22-A114-B exceeds 2000 V x MM EIA/JESD22-A115-A exceeds 200 V. s Multiple package options s Specified from -40 C to +80 C and from -40 C to +125 C.
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
3. Quick reference data
Table 1: Quick reference data GND = 0 V; Tamb= 25 C; tr = tf = 6 ns. Symbol tPHL, tPLH CI CI/O CPD
[1]
Parameter propagation delay An to Bn; Bn to An input capacitance input/output capacitance power dissipation capacitance per transceiver
Conditions CL = 15 pF; VCC = 5 V
Min -
Typ 6 3.5 10 26
Max -
Unit ns pF pF pF
VI = GND to VCC
[1]
-
CPD is used to determine the dynamic power dissipation (PD in W). PD = CPD x VCC2 x fi x N + (CL x VCC2 x fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in V; N = number of inputs switching; (CL x VCC2 x fo) = sum of outputs.
4. Ordering information
Table 2: Ordering information Package Temperature range 74HC243N 74HC243D 74HC243DB -40 C to +125 C -40 C to +125 C -40 C to +125 C Name DIP14 SO14 SSOP14 Description plastic dual in-line package; 14 leads (300 mil) plastic small outline package; 14 leads; body width 3.9 mm plastic shrink small outline package; 14 leads; body width 5.3 mm Version SOT27-1 SOT108-1 SOT337-1 Type number
9397 750 13808
(c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
2 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
5. Functional diagram
13
OEB ENABLE EXITING
1
OEA
3
A0
B0
11
4
A1
B1
10
5
A2
B2
9
6
A3
B3
8
001aab953
Fig 1. Functional diagram
13
OEB ENABLE EXITING
13 1 EN1 EN2
1
OEA
3
A0
B0
11
3 4
1 2 11 10 9 8
001aab951
6
A3
B3
5
8
6
001aab950
Fig 2. Logic symbol
Fig 3. IEC logic symbol
9397 750 13808
(c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
3 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
6. Pinning information
6.1 Pinning
OEA n.c. A0 A1 A2 A3 GND
1 2 3 4 5 6 7
001aab948
14 VCC 13 OEB 12 n.c.
243
11 B0 10 B1 9 8 B2 B3
Fig 4. Pin configuration
6.2 Pin description
Table 3: Symbol OEA n.c. A0 A1 A2 A3 GND B3 B2 B1 B0 n.c. OEB VCC Pin description Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Description output enable input (active LOW) not connected data input or output data input or output data input or output data input or output ground (0 V) data output or input data output or input data output or input data output or input not connected output enable input positive supply voltage
9397 750 13808
(c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
4 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
7. Functional description
7.1 Function table
Table 4: Control OEA L H L H
[1]
Function table [1] Input or output OEB L L H H An input Z Z A=B Bn B=A Z Z input
H = HIGH voltage level; L = LOW voltage level; Z = high-impedance OFF-state.
8. Limiting values
Table 5: Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V). Symbol VCC IIK IOK IO ICC, IGND Tstg Ptot Parameter supply voltage input diode current output diode current output source or sink current VCC or GND current storage temperature power dissipation DIP14 package SO14 and SSOP16 packages
[1] [2]
[1] [2]
Conditions VI < -0.5 V or VI > VCC + 0.5 V VO < -0.5 V or VO > VCC + 0.5 V VO = -0.5 V to VCC + 0.5 V
Min -0.5 -65 -
Max +7 20 20 35 70 +150 750 500
Unit V mA mA mA mA C mW mW
Above 70 C: Ptot derates linearly with 12 mW/K. Above 70 C: Ptot derates linearly with 8 mW/K.
9397 750 13808
(c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
5 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
9. Recommended operating conditions
Table 6: Symbol VCC VI VO tr, tf Recommended operating conditions Parameter supply voltage input voltage output voltage input rise and fall times VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V Tamb ambient temperature Conditions Min 2.0 0 0 -40 Typ 5.0 6.0 Max 6.0 VCC VCC 1000 500 400 +125 Unit V V V ns ns ns C
10. Static characteristics
Table 7: Static characteristics At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Tamb = 25 C VIH HIGH-level input voltage VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V VIL LOW-level input voltage VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V VOH HIGH-level output voltage VI = VIH or VIL IO = -20 A; VCC = 2.0 V IO = -20 A; VCC = 4.5 V IO = -20 A; VCC = 6.0 V IO = -6.0 mA; VCC = 4.5 V IO = -7.8 mA; VCC = 6.0 V VOL LOW-level output voltage VI = VIH or VIL IO = 20 A; VCC = 2.0 V IO = 20 A; VCC = 4.5 V IO = 20 A; VCC = 6.0 V IO = 6.0 mA; VCC = 4.5 V IO = 7.8 mA; VCC = 6.0 V ILI IOZ ICC CI CI/O
9397 750 13808
Parameter
Conditions
Min 1.5 3.15 4.2 1.9 4.4 5.9 3.98 5.48 -
Typ 1.2 2.4 3.2 0.8 2.1 2.8 2.0 4.5 6.0 4.32 5.81 0 0 0 0.15 0.16 3.5 10
Max 0.5 1.35 1.8 0.1 0.1 0.1 0.26 0.26 0.1 0.5 8.0 -
Unit V V V V V V V V V V V V V V V V A A A pF pF
input leakage current 3-state OFF-state current quiescent supply current input capacitance input/output capacitance
VI = VCC or GND; VCC = 6.0 V VI = VIH or VIL; VCC = 6.0 V; VO = VCC or GND VI = VCC or GND; IO = 0 A; VCC = 6.0 V
(c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
6 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
Table 7: Static characteristics ...continued At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol VIH Parameter HIGH-level input voltage Conditions VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V VIL LOW-level input voltage VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V VOH HIGH-level output voltage VI = VIH or VIL IO = -20 A; VCC = 2.0 V IO = -20 A; VCC = 4.5 V IO = -20 A; VCC = 6.0 V IO = -6.0 mA; VCC = 4.5 V IO = -7.8 mA; VCC = 6.0 V VOL LOW-level output voltage VI = VIH or VIL IO = 20 A; VCC = 2.0 V IO = 20 A; VCC = 4.5 V IO = 20 A; VCC = 6.0 V IO = 6.0 mA; VCC = 4.5 V IO = 7.8 mA; VCC = 6.0 V ILI IOZ ICC input leakage current 3-state OFF-state current quiescent supply current VI = VCC or GND; VCC = 6.0 V VI = VIH or VIL; VCC = 6.0 V; VO = VCC or GND VI = VCC or GND; IO = 0 A; VCC = 6.0 V VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V VIL LOW-level input voltage VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V VOH HIGH-level output voltage VI = VIH or VIL IO = -20 A; VCC = 2.0 V IO = -20 A; VCC = 4.5 V IO = -20 A; VCC = 6.0 V IO = -6.0 mA; VCC = 4.5 V IO = -7.8 mA; VCC = 6.0 V 1.9 4.4 5.9 3.7 5.2 0.1 0.1 0.1 0.33 0.33 1.0 5.0 80 V V V V V A A A 1.9 4.4 5.9 3.84 5.34 V V V V V Min 1.5 3.15 4.2 Typ Max 0.5 1.35 1.8 Unit V V V V V V Tamb = -40 C to +85 C
Tamb = -40 C to +125 C VIH HIGH-level input voltage 1.5 3.15 4.2 V V V V V 0.5 1.35 1.8 V V V V V V
9397 750 13808
(c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
7 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
Table 7: Static characteristics ...continued At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol VOL Parameter LOW-level output voltage Conditions VI = VIH or VIL IO = 20 A; VCC = 2.0 V IO = 20 A; VCC = 4.5 V IO = 20 A; VCC = 6.0 V IO = 6.0 mA; VCC = 4.5 V IO = 7.8 mA; VCC = 6.0 V ILI IOZ ICC input leakage current 3-state OFF-state current quiescent supply current VI = VCC or GND; VCC = 6.0 V VI = VIH or VIL; VCC = 6.0 V; VO = VCC or GND VI = VCC or GND; IO = 0 A; VCC = 6.0 V Min Typ 0.1 0.1 0.1 0.4 0.4 1.0 10.0 160 V V V V V A A A Max Unit
11. Dynamic characteristics
Table 8: Dynamic characteristics GND = 0 V; tr = tf = 6 ns; CL = 50 pF; RL = 1000 ; see Figure 8. Symbol Tamb = 25 C tPHL, tPLH propagation delay An to Bn; Bn to An see Figure 5 VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V VCC = 5.0 V; CL = 15 pF tPZH, tPZL 3-state output enable time OEA to An or Bn; OEB to An or Bn see Figure 6 and 7 VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V tPHZ, tPLZ 3-state output disable time OEA to An or Bn; OEB to An or Bn see Figure 6 and 7 VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V tTHL, tTLH output transition time see Figure 5 VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V CPD tPHL, tPLH power dissipation capacitance per transceiver VI = GND to VCC propagation delay An to Bn; Bn to An see Figure 5 VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V
9397 750 13808
Parameter
Conditions
Min
Typ
Max
Unit
[1]
22 8 6 6 50 18 14 61 22 18 14 5 4 26
90 18 15 150 30 26 165 33 28 60 12 10 -
ns ns ns ns ns ns ns ns ns ns ns ns ns pF
-
Tamb = -40 C to +85 C 115 23 20 ns ns ns
(c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
8 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
Table 8: Dynamic characteristics ...continued GND = 0 V; tr = tf = 6 ns; CL = 50 pF; RL = 1000 ; see Figure 8. Symbol tPZH, tPZL Parameter 3-state output enable time OEA to An or Bn; OEB to An or Bn Conditions see Figure 6 and 7 VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V tPHZ, tPLZ 3-state output disable time OEA to An or Bn; OEB to An or Bn see Figure 6 and 7 VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V tTHL, tTLH output transition time see Figure 5 VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V Tamb = -40 C to +125 C tPHL, tPLH propagation delay An to Bn; Bn to An see Figure 5 VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V tPZH, tPZL 3-state output enable time OEA to An or Bn; OEB to An or Bn see Figure 6 and 7 VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V tPHZ, tPLZ 3-state output disable time OEA to An or Bn; OEB to An or Bn see Figure 6 and 7 VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V tTHL, tTLH output transition time see Figure 5 VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V
[1] CPD is used to determine the dynamic power dissipation (PD in W). PD = CPD x VCC2 x fi x N + (CL x VCC2 x fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in V; N = number of inputs switching; (CL x VCC2 x fo) = sum of outputs.
Min -
Typ -
Max 190 38 33 205 41 35 75 15 13
Unit ns ns ns ns ns ns ns ns ns
-
-
135 27 23 225 45 38 250 50 43 90 18 15
ns ns ns ns ns ns ns ns ns ns ns ns
9397 750 13808
(c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
9 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
12. Waveforms
An, Bn input
VM
tPHL Bn, An output
tPLH
VM
tTHL
tTLH
001aab955
VM = 0.5 x VI.
Fig 5. Waveforms showing the input (An and Bn) to output (Bn and An) propagation delays and the output transition times
tr OEA input 10 % 90 % VM tPLZ output LOW to OFF OFF to LOW tPHZ output HIGH to OFF OFF to HIGH outputs enabled 90 %
tf
tPZL
10 % tPZH
VM
VM outputs disabled outputs enabled
001aab959
VM = 0.5 x VI.
Fig 6. Waveforms showing the 3-state enable and disable times for input OEA
9397 750 13808
(c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
10 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
tr 90 % OEB input VM 10 % tPLZ output LOW to OFF OFF to LOW tPHZ output HIGH to OFF OFF to HIGH outputs enabled 90 %
tf
tPZL
10 % tPZH
VM
VM outputs disabled outputs enabled
001aab956
VM = 0.5 x VI.
Fig 7. Waveforms showing the 3-state enable and disable times for input OEB
S1 VCC VI D.U.T. RT CL
mna232
RL = 1000
VCC open GND
PULSE GENERATOR
VO
Test data is given in Table 9. Definitions for test circuit: RL = Load resistor. CL = Load capacitance including jig and probe capacitance. RT = Termination resistance should be equal to the output impedance Zo of the pulse generator.
Fig 8. Load circuitry for switching times Table 9: Supply VCC 2.0 V 4.5 V 6.0 V 5.0 V Test data Input VI VCC VCC VCC VCC tr = tf 6 ns 6 ns 6 ns 6 ns Load CL 50 pF 50 pF 50 pF 15 pF RL 1 k 1 k 1 k 1 k S1 tPZL, tPLZ VCC VCC VCC VCC tPZH, tPHZ GND GND GND GND tPHL, tPLH open open open open
9397 750 13808
(c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
11 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
13. Package outline
DIP14: plastic dual in-line package; 14 leads (300 mil) SOT27-1
D seating plane
ME
A2
A
L
A1
c Z e b1 b 14 8 MH wM (e 1)
pin 1 index E
1
7
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 4.2 0.17 A1 min. 0.51 0.02 A2 max. 3.2 0.13 b 1.73 1.13 0.068 0.044 b1 0.53 0.38 0.021 0.015 c 0.36 0.23 0.014 0.009 D (1) 19.50 18.55 0.77 0.73 E (1) 6.48 6.20 0.26 0.24 e 2.54 0.1 e1 7.62 0.3 L 3.60 3.05 0.14 0.12 ME 8.25 7.80 0.32 0.31 MH 10.0 8.3 0.39 0.33 w 0.254 0.01 Z (1) max. 2.2 0.087
Note 1. Plastic or metal protrusions of 0.25 mm (0.01 inch) maximum per side are not included. OUTLINE VERSION SOT27-1 REFERENCES IEC 050G04 JEDEC MO-001 JEITA SC-501-14 EUROPEAN PROJECTION
ISSUE DATE 99-12-27 03-02-13
Fig 9. Package outline SOT27-1 (DIP14)
9397 750 13808 (c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
12 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
SO14: plastic small outline package; 14 leads; body width 3.9 mm
SOT108-1
D
E
A X
c y HE vMA
Z 14 8
Q A2 pin 1 index Lp 1 e bp 7 wM L detail X A1 (A 3) A
0
2.5 scale
5 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm A max. 1.75 A1 0.25 0.10 A2 1.45 1.25 A3 0.25 0.01 bp 0.49 0.36 c 0.25 0.19 D (1) 8.75 8.55 E (1) 4.0 3.8 0.16 0.15 e 1.27 0.05 HE 6.2 5.8 L 1.05 Lp 1.0 0.4 Q 0.7 0.6 0.028 0.024 v 0.25 0.01 w 0.25 0.01 y 0.1 Z (1) 0.7 0.3
0.010 0.057 inches 0.069 0.004 0.049
0.019 0.0100 0.35 0.014 0.0075 0.34
0.244 0.039 0.041 0.228 0.016
0.028 0.004 0.012
8 o 0
o
Note 1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. OUTLINE VERSION SOT108-1 REFERENCES IEC 076E06 JEDEC MS-012 JEITA EUROPEAN PROJECTION
ISSUE DATE 99-12-27 03-02-19
Fig 10. Package outline SOT108-1 (SO14)
9397 750 13808 (c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
13 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
SSOP14: plastic shrink small outline package; 14 leads; body width 5.3 mm
SOT337-1
D
E
A X
c y HE vM A
Z 14 8
Q A2 A1 pin 1 index Lp L 1 bp 7 wM detail X (A 3) A
e
0
2.5 scale
5 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A max. 2 A1 0.21 0.05 A2 1.80 1.65 A3 0.25 bp 0.38 0.25 c 0.20 0.09 D (1) 6.4 6.0 E (1) 5.4 5.2 e 0.65 HE 7.9 7.6 L 1.25 Lp 1.03 0.63 Q 0.9 0.7 v 0.2 w 0.13 y 0.1 Z (1) 1.4 0.9 8 o 0
o
Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT337-1 REFERENCES IEC JEDEC MO-150 JEITA EUROPEAN PROJECTION
ISSUE DATE 99-12-27 03-02-19
Fig 11. Package outline SOT337-1 (SSOP14)
9397 750 13808 (c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
14 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
14. Revision history
Table 10: Revision history Release date 20041112 Data sheet status Product data sheet Change notice Doc. number 9397 750 13808 Supersedes 74HC_HCT243_CNV_2 Document ID 74HC243_3 Modifications:
* * *
The format of this data sheet has been redesigned to comply with the current presentation and information standard of Philips Semiconductors. Removed type number 74HCT243. Inserted family specification. Product specification Product specification 74HC_HCT243_1 -
74HC_HCT243_CNV_2 74HC_HCT243_1
19970828 19901201
9397 750 13808
(c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
15 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
15. Data sheet status
Level I II Data sheet status [1] Objective data Preliminary data Product status [2] [3] Development Qualification Definition This data sheet contains data from the objective specification for product development. Philips Semiconductors reserves the right to change the specification in any manner without notice. This data sheet contains data from the preliminary specification. Supplementary data will be published at a later date. Philips Semiconductors reserves the right to change the specification without notice, in order to improve the design and supply the best possible product. This data sheet contains data from the product specification. Philips Semiconductors reserves the right to make changes at any time in order to improve the design, manufacturing and supply. Relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN).
III
Product data
Production
[1] [2] [3]
Please consult the most recently issued data sheet before initiating or completing a design. The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com. For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
16. Definitions
Short-form specification -- The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition -- Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information -- Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification.
17. Disclaimers
Life support -- These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes -- Philips Semiconductors reserves the right to make changes in the products - including circuits, standard cells, and/or software - described or contained herein in order to improve design and/or performance. When the product is in full production (status `Production'), relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified.
18. Contact information
For additional information, please visit: http://www.semiconductors.philips.com For sales office addresses, send an email to: sales.addresses@www.semiconductors.philips.com
9397 750 13808
(c) Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
16 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
19. Contents
1 2 3 4 5 6 6.1 6.2 7 7.1 8 9 10 11 12 13 14 15 16 17 18 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Quick reference data . . . . . . . . . . . . . . . . . . . . . 2 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 3 Pinning information . . . . . . . . . . . . . . . . . . . . . . 4 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 Functional description . . . . . . . . . . . . . . . . . . . 5 Function table . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 5 Recommended operating conditions. . . . . . . . 6 Static characteristics. . . . . . . . . . . . . . . . . . . . . 6 Dynamic characteristics . . . . . . . . . . . . . . . . . . 8 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 12 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 15 Data sheet status . . . . . . . . . . . . . . . . . . . . . . . 16 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Contact information . . . . . . . . . . . . . . . . . . . . 16
(c) Koninklijke Philips Electronics N.V. 2004
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. Date of release: 12 November 2004 Document number: 9397 750 13808
Published in The Netherlands


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