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HD74HC241
Octal Buffers/Line Drivers/Line Receivers (with noninverted 3-state outputs)
REJ03D0595-0200 (Previous ADE-205-472) Rev.2.00 Jan 31, 2006
Description
The HD74HC241 is a noninverting buffer and has one active low enable and one active high enable. Each enable independently controls 4 buffers. This device does not have schmitt trigger inputs.
Features
* * * * * * High Speed Operation: tpd = 11 ns typ (CL = 50 pF) High Output Current: Fanout of 15 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 A max Low Quiescent Supply Current: ICC (static) = 4 A max (Ta = 25C) Ordering Information
Part Name HD74HC241FPEL HD74HC241RPEL Package Type SOP-20 pin (JEITA) SOP-20 pin (JEDEC) Package Code (Previous Code) PRSP0020DD-B (FP-20DAV) Package Abbreviation FP Taping Abbreviation (Quantity) EL (2,000 pcs/reel) EL (1,000 pcs/reel)
PRSP0020DC-A RP (FP-20DBV) Note: Please consult the sales office for the above package availability.
Function Table
1G Inputs 2G A X H L Output Y Z H L
H L X Z
: : : :
H L L H L H high level low level irrelevant off (high-impedance) state of a 3-state output
Rev.2.00 Jan 31, 2006 page 1 of 6
HD74HC241
Pin Arrangement
1G1 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 1 2 3 4 5 6 7 8 9 20 VCC 19 2G 18 1Y1 17 2A4 16 1Y2 15 2A3 14 1Y3 13 2A2 12 1Y4 11 2A1 (Top view)
GND 10
Logic Diagram
To three other 1A buffers To three other 2A buffers
Input 1A
VCC
Two of 8 buffers
YA
Input 2A
VCC
YB
G Strobe G
Rev.2.00 Jan 31, 2006 page 2 of 6
HD74HC241
Absolute Maximum Ratings
Item Supply voltage range Input / Output voltage Input / Output diode current Output current VCC, GND current Power dissipation Storage temperature Symbol VCC VIN, VOUT IIK, IOK IO ICC or IGND PT Tstg Ratings -0.5 to 7.0 -0.5 to VCC +0.5 20 35 75 500 -65 to +150 Unit V V mA mA mA mW
C
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.
Recommended Operating Conditions
Item Supply voltage Input / Output voltage Operating temperature Input rise / fall time*1 Symbol VCC VIN, VOUT Ta tr, tf Ratings 2 to 6 0 to VCC -40 to 85 0 to 1000 0 to 500 0 to 400 Unit V V Conditions
C
ns VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V
Notes: 1. This item guarantees maximum limit when one input switches. Waveform: Refer to test circuit of switching characteristics.
Electrical Characteristics
Item Input voltage Symbol VCC (V) VIH 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 4.5 6.0 2.0 4.5 6.0 4.5 6.0 6.0 6.0 6.0 Min 1.5 3.15 4.2 -- -- -- 1.9 4.4 5.9 4.18 5.68 -- -- -- -- -- -- -- -- Ta = 25C Typ Max -- -- -- -- -- -- 2.0 4.5 6.0 -- -- 0.0 0.0 0.0 -- -- -- -- -- -- -- -- 0.5 1.35 1.8 -- -- -- -- -- 0.1 0.1 0.1 0.26 0.26 0.5 0.1 4.0 Ta = -40 to+85C Unit Min Max 1.5 3.15 4.2 -- -- -- 1.9 4.4 5.9 4.13 5.63 -- -- -- -- -- -- -- -- -- -- -- 0.5 1.35 1.8 -- -- -- -- -- 0.1 0.1 0.1 0.33 0.33 5.0 1.0 40 V Test Conditions
VIL
V
Output voltage
VOH
V
Vin = VIH or VIL IOH = -20 A
IOH = -6 mA IOH = -7.8 mA V Vin = VIH or VIL IOL = 20 A
VOL
IOL = 6 mA IOL = 7.8 mA A Vin = VIH or VIL, Vout = VCC or GND A Vin = VCC or GND A Vin = VCC or GND, Iout = 0 A
Off-state output current Input current Quiescent supply current
IOZ Iin ICC
Rev.2.00 Jan 31, 2006 page 3 of 6
HD74HC241
Switching Characteristics
(CL = 50 pF, Input tr = tf = 6 ns)
Item Propagation delay time Symbol VCC (V) tPHL 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 Output rise/fall time Input capacitance tTLH tTHL Cin 2.0 4.5 6.0 -- Ta = 25C Min Typ Max -- -- 90 -- 12 18 -- -- 15 -- -- 90 -- 10 18 -- -- 15 -- -- 150 -- 11 30 -- -- 26 -- -- 150 -- 12 30 -- -- 26 -- -- 150 -- 16 30 -- -- 26 -- -- 150 -- -- -- -- -- -- 19 -- -- 4 -- 5 30 26 60 12 10 10 Ta = -40 to +85C Unit Min Max -- 115 ns -- 23 -- 20 -- 115 ns -- 23 -- 20 -- 190 ns -- 38 -- 33 -- 190 ns -- 38 -- 33 -- 190 ns -- 38 -- 33 -- 190 ns -- -- -- -- -- -- 38 33 75 15 13 10 ns Test Conditions
tPLH
Output enable time
tZL
tZH
Output disable time
tLZ
tHZ
pF
Test Circuit
VCC VCC Output 1 k 1Y1 to 2Y4 1A1 to 2A4 CL = 50 pF S1 OPEN GND VCC
1G, 2G
Pulse Generator Zout = 50
See Function Table
Input
TEST t PLH / t PHL t ZH/ t HZ t ZL / t LZ Note : 1. CL includes probe and jig capacitance.
S1 OPEN GND VCC
Rev.2.00 Jan 31, 2006 page 4 of 6
HD74HC241
Waveforms
* Waveform - 1
tr 90 % 50 % 10 % t PLH 90 % Input Y 50 % 10 % t TLH 90 % 50 % 10 % t PHL 90 % 50 % 10 % t THL tr 90 % 50 % 10 % 50 % 10 % VCC 0V VCC 10 % t LZ 0V VOH Waveform - A t ZH Waveform - B 50 % t HZ 90 % 10 % VOL VOH VOL Notes : 1. Input waveform : PRR 1 MHz, duty cycle 50%, tr 6 ns, tf 6 ns 2. Waveform- A is for an output with internal conditions such that the output is low except when disabled by the output control. 3. Waveform- B is for an output with internal conditions such that the output is high except when disabled by the output control. 4. The output are measured one at a time with one transition per measurement. tf VCC 0V
Input A
VOH VOL
* Waveform - 2
tf 90 % Input 1G
Input 2G 10 %
90 % 50 % t ZL
90 % 50 %
50 %
Rev.2.00 Jan 31, 2006 page 5 of 6
HD74HC241
Package Dimensions
JEITA Package Code P-SOP20-5.5x12.6-1.27 RENESAS Code PRSP0020DD-B Previous Code FP-20DAV MASS[Typ.] 0.31g
*1
D 11
F
NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET.
20
bp
E
HE
Index mark
Reference Symbol
*2
c
Dimension in Millimeters Min Nom 12.60 5.50 Max 13.0
Terminal cross section ( Ni/Pd/Au plating )
1 Z e
*3
D E A2 A1 0.00
10 bp x M L1
0.10
0.20 2.20
A bp b1 c c
1
0.34
0.40
0.46
0.15
0.20
0.25
A
HE
0 7.50 7.80 1.27
8 8.00
y
e x y
A1
L
0.12 0.15 0.80 0.50
1
Detail F
Z L L 0.70 1.15
0.90
JEITA Package Code P-SOP20-7.5x12.8-1.27
RENESAS Code PRSP0020DC-A
Previous Code FP-20DBV
MASS[Typ.] 0.52g
*1
D
F 11 NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" @ DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT @ INCLUDE TRIM OFFSET.
20
bp
*2
HE
E
Index mark
Reference Symbol
c
Dimension in Millimeters Min Nom 12.80 7.50 Max 13.2
Terminal cross section ( Ni/Pd/Au plating )
1 Z e
*3
D E A2
10 bp x M L1
A1 A bp b1 c c
1
0.10
0.20
0.30 2.65
0.34
0.40
0.46
0.20
0.25
0.30
A
HE
0 10.00 10.40 1.27
8 10.65
A1
y L
e x y Z
0.12 0.15 0.935 0.40
1
Detail F
L L
0.70 1.45
1.27
Rev.2.00 Jan 31, 2006 page 6 of 6
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