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HD74LVCZ244A
Octal Buffers / Line Drivers with 3-state Outputs
REJ03D0371-0300 (Previous ADE-205-230A (Z)) Rev.3.00 Aug. 18, 2004
Description
The HD74LVCZ244A has eight line drivers with three state outputs in a 20 pin package. This device is a noninverting buffer and has two active low enables (1G and 2G). Each enable independently controls four buffers. When VCC is between 0 and 1.5 V, the device is in the high impedance state during power up or power down. Low voltage and high-speed operation is suitable at battery drive product (note type personal computer) and low power consumption extends the life of a battery for long time operation.
Features
* * * * * * * * * VCC = 2.7 to 5.5 V All inputs VIH (Max) = 5.5 V (@VCC = 0 to 5.5 V) All outputs VO (Max) = 5.5 V (@VCC = 0 V or output off state) Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25C) Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25C) High impedance state during power up and power down Power off disables outputs, permitting live insertion High output current 24 mA (@VCC = 3.0 to 5.5 V) Ordering Information
Package Type SOP-20 pin (JEITA) TSSOP-20 pin Package Code FP-20DAV TTP-20DAV Package Abbreviation FP T Taping Abbreviation (Quantity) EL (2,000 pcs/reel) ELL (2,000 pcs/reel)
Part Name HD74LVCZ244AFPEL HD74LVCZ244ATELL
Function Table
Inputs G H L L H: High level L: Low level X: Immaterial Z: High impedance A X H L Output Y Z H L
Rev.3.00 Aug. 18, 2004 page 1 of 8
HD74LVCZ244A
Pin Arrangement
1G 1 1A1 2Y4 2 3
20 VCC 19 2G 18 1Y1 17 2A4 16 1Y2 15 2A3 14 1Y3 13 2A2 12 1Y4 11 2A1
1A2 4 2Y3 1A3 2Y2 1A4 2Y1 5 6 7 8 9
GND 10
(Top view)
Absolute Maximum Ratings
Item Supply voltage Input voltage Output voltage Input diode current Output diode current Output current VCC, GND current Storage temperature Symbol VCC VI VO IIK IOK IO ICC or IGND Tstg Ratings -0.5 to 7.0 -0.5 to 7.0 -0.5 to 7.0 -0.5 to VCC+0.5 -50 -50 50 100 -65 to 150 Unit V V V mA mA mA mA C Conditions
Output "Z" or VCC : OFF Output "H" or "L" VI < 0 VO < 0
Note: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of which may be realized at the same time.
Rev.3.00 Aug. 18, 2004 page 2 of 8
HD74LVCZ244A
Recommended Operating Conditions
Item Supply voltage Input voltage Output voltage Output current Symbol VCC VI VO IOH IOL Input rise / fall time Operating temperature Note: 1. Duty cycle 50% tr, tf Ta Ratings 2.7 to 5.5 0 to 5.5 0 to 5.5 0 to VCC -12 -24 *1 12 24 *1 0 to 6 -40 to +85 Unit V V V mA mA ns / V C Conditions At operation Output "Z" or VCC : OFF Output "H" or "L" VCC = 2.7 V VCC = 3.0 to 5.5 V VCC = 2.7 V VCC = 3.0 to 5.5 V
Logic Diagram
1G 1A1
1
2G
18
19
2
1Y1
2A1
11
9
2Y1
1A2
4
16
1Y2
2A2
13
7
2Y2
1A3
6
14
1Y3
2A3
15
5
2Y3
1A4
8
12
1Y4
2A4
17
3
2Y4
Rev.3.00 Aug. 18, 2004 page 3 of 8
HD74LVCZ244A
Electrical Characteristics
(Ta = -40 to 85C) Item Input voltage Symbol VIH VIL Output voltage VOH VCC (V) 2.7 to 3.6 4.5 to 5.5 2.7 to 3.6 4.5 to 5.5 2.7 to 5.5 2.7 3.0 3.0 4.5 2.7 to 5.5 2.7 3.0 4.5 0 to 5.5 2.7 to 5.5 0 to 1.5 1.5 to 0 0 2.7 to 3.6 2.7 to 5.5 2.7 to 3.6 3.3 3.3 Min 2.0 VCCx0.7 -- -- VCC-0.2 2.2 2.4 2.2 3.8 -- -- -- -- -- -- -- -- -- -- -- -- -- -- Typ -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 3.4 7.5 Max -- -- 0.8 VCCx0.3 -- -- -- -- -- 0.2 0.4 0.55 0.55 5 5 5 5 5 225 350 500 -- -- Unit V V V IOH = -100 A IOH = -12 mA IOH = -24 mA V IOL = 100 A IOL = 12 mA IOL = 24 mA VIN = 0 to 5.5 V VOUT = 0 to 5.5 V VOUT = 0.5 to 5.5 V, Output enable = don't care VIN or VO = 5.5 V VIN = 3.6 to 5.5 V *1, IO = 0 VIN = VCC or GND VIN = one input at (VCC-0.6) V, other inputs at VCC or GND VIN = VCC or GND VOUT = VCC or GND Test Conditions
VOL
Input current Off state output current Output leak current Quiescent supply current
IIN IOZ IOZPU IOZPD IOFF ICC ICC
A A
A A A pF pF
Input capacitance Output capacitance Note:
CIN CO
1. This applies in the disabled state only.
Switching Characteristics
FROM (Input) A (Ta = -40 to 85C) TO (Output) Y
Item Propagation delay time
Symbol tPLH tPHL tZH tZL tHZ tLZ
VCC (V) 2.7 3.30.3 5.00.5 2.7 3.30.3 5.00.5 2.7 3.30.3 5.00.5 2.7 3.30.3 5.00.5
Min -- 1.5 -- -- 1.5 -- -- 1.5 -- -- -- --
Typ -- -- -- -- -- -- -- -- -- -- -- --
Max 6.9 5.9 4.5 8.6 7.6 6.1 6.8 6.5 5.5 -- 1.0 1.0
Unit ns
Output enable time
ns
G
Y
Output disable time
ns
G
Y
Between output pin skew *1 tOSLH tOSHL Note:
ns
1. This parameter is characterized but not tested. tOSLH = |tPLHm-tPLHn|, tOSHL = |tPHLm-tPHLn|
Rev.3.00 Aug. 18, 2004 page 4 of 8
HD74LVCZ244A
Test Circuit
VCC VCC Output 1G, 2G Input Pulse generator Zout = 50 500 1Y1 to 2Y4 1A1 to 2A4 C L= 50 pF 450
50 Scope
See Function Table
S1
*1
OPEN See under table GND
Symbol t PLH / t PHL t ZH/ t HZ t ZL / t LZ Note: 1. C L includes probe and jig capacitance.
S1
Vcc=2.7V, 3.30.3V Vcc=5.00.5V
OPEN GND 6V
OPEN GND 2xVCC
Rev.3.00 Aug. 18, 2004 page 5 of 8
HD74LVCZ244A
* Waveforms - 1
tr 90 % Input A 10 % t PLH Vref 90 % Vref 10 % t PHL tf VIH GND
VOH Output Y Vref Vref VOL
* Waveforms - 2
tf 90 % Vref 10 % t ZL 10 % t LZ tr 90 % Vref GND VOH1 Waveform - A Vref t ZH t HZ VOH - 0.3 V VOL + 0.3 V VOL VOH VOL1 TEST VIH Vref VOH1 VOL1
Vcc=2.7V, 3.30.3V Vcc=5.00.5V
VIH
Input G
Waveform - B
Vref
2.7 V 1.5 V 3V GND
VCC 50%VCC VCC GND
Notes: 1. Input waveform : PRR = 10 MHz, duty cycle 50%, t r = 2.5 ns, t f = 2.5 ns 2. Waveform - A shows input conditions such that the output is "L" level when enabled by the output control. 3. Waveform - B shows input conditions such that the output is "H" level when enabled by the output control.
Rev.3.00 Aug. 18, 2004 page 6 of 8
HD74LVCZ244A
Power up / down Characteristics
4.0
Ta = 25C Output enable = "L"
3.0
VOUT (V)
2.0 Disable area Enable area
1.0
0 0 1.0 2.0 VCC (V) 3.0 4.0
Rev.3.00 Aug. 18, 2004 page 7 of 8
HD74LVCZ244A
Package Dimensions
As of January, 2002
12.6 13 Max
20
Unit: mm
11
1
10
5.5
0.80 Max
2.20 Max
*0.20 0.05
0.20 7.80 + 0.30 -
1.15
1.27
*0.40 0.06
0.10 0.10
0 - 8
0.70 0.20
0.15
0.12 M
*Pd plating
Package Code JEDEC JEITA Mass (reference value)
FP-20DAV -- Conforms 0.31 g
As of January, 2002
Unit: mm
6.50 6.80 Max 20 11
1
10 0.65 1.0 6.40 0.20 0.65 Max
*0.20 0.05
0.13 M
4.40
*0.15 0.05
1.10 Max
0.10
0.07 +0.03 -0.04
0 - 8
0.50 0.10
*Pd plating
Package Code JEDEC JEITA Mass (reference value)
TTP-20DAV -- -- 0.07 g
Rev.3.00 Aug. 18, 2004 page 8 of 8
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