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CD74HC240 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. CD74HC240
Description  High Speed CMOS Logic Octal Buffer/Line Drivers, Three-State
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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CD74HC240 Datasheet(HTML) 1 Page - Texas Instruments

   
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Data sheet acquired from Harris Semiconductor
SCHS167
Features
• CD74HC/HCT240 Inverting
• CD74HC/HCT241 Non-Inverting
• CD74HC/HCT244 Non-Inverting
• Typical Propagation Delay = 8ns at VCC = 5V,
CL = 15pF, TA = 25
oC for HC240
• Three-State Outputs
• Buffered Inputs
• High-Current Bus Driver Outputs
• Fanout (Over Temperature Range)
- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
• Wide Operating Temperature Range . . . -55oC to 125oC
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL
Logic ICs
• HC Types
- 2V to 6V Operation
- High Noise Immunity: NIL = 30%, NIH = 30% of VCC
at VCC = 5V
• HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
VIL= 0.8V (Max), VIH = 2V (Min)
- CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH
Pinout
CD74HC240, CD74HCT240, CD74HC241, CD74HCT241,
CD74HC244, CD74HCT244
(PDIP, SOIC)
TOP VIEW
11
12
13
14
15
16
17
18
20
19
10
9
8
7
6
5
4
3
2
1
1OE
1A0
2Y3
1A1
2Y2
1A2
1A3
2Y1
2Y0
GND
VCC
1Y0
2A3
1Y1
2OE (241)
2A2
1Y2
2A1
1Y3
2A0
241
244
240
VCC
1Y0
2A3
1Y1
2OE (240, 244)
2A2
1Y2
2A1
1Y3
2A0
1OE
1A0
2Y3
1A1
2Y2
1A2
1A3
2Y1
2Y0
GND
241
244
240
November 1997
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
© Harris Corporation 1997
CD74HC240, CD74HCT240,
CD74HC241, CD74HCT241,
CD74HC244, CD74HCT244
High Speed CMOS Logic
Octal Buffer/Line Drivers, Three-State
File Number
1656.1
[ /Title
(CD74
HC240
,
CD74
HCT24
0,
CD74
HC241
,
CD74
HCT24
1,
CD74
HC244
,
CD74


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