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CD74HC257E, in 3D

CD74HC257E

Texas Instruments

-55℃~+125℃ 12ns@5V,15pF 2V~6V 7.8mA 7.8mA 74HC Output enable high-impedance、Tri-state output Single Supply PDIP-16 Signal Switches, Multiplexers, Decoders ROHS

Extended
DatasheetJLCPCBLCSCti/CD74HC257E
Category
Signal Switches, Multiplexers, Decoders
Package
PDIP-16
Pins
16

Overview

The CD74HC257E is a signal Switches, Multiplexers, Decoder made by Texas Instruments in a PDIP-16 package with 16 pins. -55℃~+125℃ 12ns@5V,15pF 2V~6V 7.8mA 7.8mA 74HC Output enable high-impedance、Tri-state output Single Supply PDIP-16 Signal Switches, Multiplexers, Decoders ROHS.

PCBKit's library has its KiCad symbol (74xx:74LS257, from KiCad's library) and its footprint (Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C2879057).

Symbol

S1I0a2I1a3Za4I0b5I1b6Zb7GND8Zd9I1d10I0d11Zc12I1c13I0c14OE15VCC16
74xx:74LS257From KiCad's library

Footprint

12345678910111213141516
Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPadsFrom KiCad's library

Parameters

8
Current - Output High(IOH)
7.8mA
Current - Output Low(IOL)
7.8mA
Function
Output enable high-impedance；Tri-state output
Operating temperature
-55℃~+125℃
Propagation Delay
12ns@5V,15pF
Series
74HC
Voltage - Supply
2V~6V
Voltage Supply Source
Single Supply

Order codes

1

Pinout

16
The pins of the CD74HC257E
PinNameType
1SInput
2I0aInput
3I1aInput
4ZaTri-state
5I0bInput
6I1bInput
7ZbTri-state
8GNDPower in
9ZdTri-state
10I1dInput
11I0dInput
12ZcTri-state
13I1cInput
14I0cInput
15OEInput
16VCCPower in

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Questions

Is there a KiCad symbol and footprint for the CD74HC257E?

Yes. The symbol is 74xx:74LS257 and the footprint Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the CD74HC257E?

PDIP-16, with 16 pins. Its footprint is drawn on this page.

Where is the CD74HC257E datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the CD74HC257E?

JLCPCB lists it as part C2879057, with 0 in stock; the sellers' links on this page open their listings.

What can replace the CD74HC257E?

Parts like it in the library: the SN74HC138NED-GMIC by GREENMICRO, the 74HC138N by HGSEMI, the 74HC139N by HGSEMI and the 74HC238N by HGSEMI. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8