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CD74HC137 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. CD74HC137
Description  High Speed CMOS Logic, 3-to-8 Line Decoder Demultiplexer with Address Latches
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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CD74HC137 Datasheet(HTML) 1 Page - Texas Instruments

 
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Data sheet acquired from Harris Semiconductor
SCHS146
Features
• Select One of Eight Data Outputs
- Active Low for CD74HC137 and CD74HCT137
- Active High for CD74HC237 and CD74HCT237
• l/O Port or Memory Selector
• Two Enable Inputs to Simplify Cascading
• Typical Propagation Delay of 13ns at VCC = 5V,
15pF, TA = 25
oC (CD74HC237)
• 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
CD74HC137, CD74HCT137, CD74HC237, CD74HCT237
(PDIP, SOIC)
TOP VIEW
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
A0
A1
A3
LE
OE1
OE0
GND
Y7
VCC
Y1
Y2
Y3
Y4
Y5
Y6
Y0
March 1998
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
© Harris Corporation 1998
File Number
1886.1
CD74HC137, CD74HCT137,
CD74HC237, CD74HCT237
High Speed CMOS Logic, 3-to-8 Line Decoder
Demultiplexer with Address Latches
[ /Title
(CD74
HC137
,
CD74
HCT13
7,
CD74
HC237
,
CD74
HCT23
7)
/Sub-
ject
(High
Speed


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