CD54HC237 datasheet(1/9 Pages) TI

номер детали	CD54HC237

подробное описание детали	High Speed CMOS Logic, 3-to-8 Line Decoder Demultiplexer with Address Latches

PDF	9 Pages

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производитель	TI [Texas Instruments]

домашняя страница	http://www.ti.com

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Data sheet acquired from Harris Semiconductor

SCHS146C

Features

• Select One of Eight Data Outputs

- Active Low for CD74HC137 and CD74HCT137

- Active High for ’HC237 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

CD54HC237

(CERDIP)

CD74HC137, CD74HCT137, CD74HCT237

(PDIP, SOIC)

CD74HC237

(PDIP, SOIC, SOP, TSSOP)

TOP VIEW

Description

The

CD74HC137,

CD74HCT137,

’HC237,

and

CD74HCT237 are high speed silicon gate CMOS decoders

well suited to memory address decoding or data routing

applications. Both circuits feature low power consumption

usually associated with CMOS circuitry, yet have speeds

comparable to low power Schottky TTL logic.

Both circuits have three binary select inputs (A0, A1 and A2)

that can be latched by an active High Latch Enable (LE) sig-

nal to isolate the outputs from select-input changes. A “Low”

LE makes the output transparent to the input and the circuit

functions as a one-of-eight decoder. Two Output Enable

inputs (OE1 and OE0) are provided to simplify cascading

and to facilitate demultiplexing. The demultiplexing function

is accomplished by using the A0,A1,A2 inputs to select the

desired output and using one of the other Output Enable

inputs as the data input while holding the other Output

Enable input in its active state. In the CD74HC137 and

CD74HCT137 the selected output is a “Low”; in the ’HC237

and CD74HCT237 the selected output is a “High”.

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

Ordering Information

PART NUMBER

TEMP. RANGE

(oC)

PACKAGE

CD74HC137E

-55 to 125

16 Ld PDIP

CD74HCT137E

-55 to 125

16 Ld PDIP

CD74HCT137M96

-55 to 125

16 Ld SOIC

CD54HC237F

-55 to 125

16 Ld CERDIP

CD54HC237F3A

-55 to 125

16 Ld CERDIP

CD74HC237E

-55 to 125

16 Ld PDIP

CD74HC237M

-55 to 125

16 Ld SOIC

CD74HC237M96

-55 to 125

16 Ld SOIC

CD74HC237NSR

-55 to 125

16 Ld SOP

CD74HC237PWR

-55 to 125

16 Ld TSSOP

CD74HCT237E

-55 to 125

16 Ld PDIP

NOTES:

1. When ordering, use the entire part number. Add the sufﬁx 96 to

obtain the variant in the tape and reel.

2. Wafer and die for this part number is available which meets all

electrical specifications. Please contact your local TI sales office

or customer service for ordering information.

March 1998 - Revised July 2002

CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.

Copyright

CD74HC137, CD74HCT137,

CD54/74HC237, 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

Аналогичный номер детали - CD54HC237

производитель	номер детали	датащи	подробное описание детали
Texas Instruments	CD54HC237	381Kb / 16P	High-Speed CMOS Logic, 3- to 8-Line Decoder/Demultiplexer with Address Latches
	CD54HC237	528Kb / 19P	High-Speed CMOS Logic, 3- to 8-Line Decoder/Demultiplexer with Address Latches
	CD54HC237	668Kb / 20P	High-Speed CMOS Logic, 3- to 8-Line Decoder/Demultiplexer with Address Latches
	CD54HC237	1,001Kb / 21P	High-Speed CMOS Logic, 3- to 8-Line Decoder/Demultiplexer with Address Latches
	CD54HC237	1Mb / 27P	High-Speed CMOS Logic, 3- to 8-Line Decoder/Demultiplexer with Address Latches October 2003

More results

Аналогичное описание - CD54HC237

производитель	номер детали	датащи	подробное описание детали
Texas Instruments	CD74HC137	65Kb / 10P	High Speed CMOS Logic, 3-to-8 Line Decoder Demultiplexer with Address Latches
Fairchild Semiconductor	DM74ALS137	57Kb / 6P	3 to 8 Line Decoder/Demultiplexer with Address Latches
Texas Instruments	CD54HC237	381Kb / 16P	High-Speed CMOS Logic, 3- to 8-Line Decoder/Demultiplexer with Address Latches
	CD74HC137	528Kb / 19P	High-Speed CMOS Logic, 3- to 8-Line Decoder/Demultiplexer with Address Latches
	CD74HC137	668Kb / 20P	High-Speed CMOS Logic, 3- to 8-Line Decoder/Demultiplexer with Address Latches
NXP Semiconductors	74HC237	150Kb / 17P	3-to-8 line decoder, demultiplexer with address latches Rev. 4-10 January 2011
	74HC237	150Kb / 17P	3-to-8 line decoder, demultiplexer with address latches Rev. 4-10 January 2011
	74HC237	227Kb / 17P	3-to-8 line decoder, demultiplexer with address latches Rev. 6-23 August 2012
Texas Instruments	CD74HC137	1,001Kb / 21P	High-Speed CMOS Logic, 3- to 8-Line Decoder/Demultiplexer with Address Latches
Nexperia B.V. All right...	74HC237	276Kb / 16P	3-to-8 line decoder, demultiplexer with address latches Rev. 8 - 26 October 2021

More results

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