SN54HC257, SN54HC258, SN74HC257, SN74HC258
QUADRUPLE 2 LINE TO 1 LINE DATA SELECTORS/MULTIPLEXERS
WITH 3 STATE OUTPUTS
SCLS224B − DECEMBER 1982 − REVISED SEPTEMBER 2003
D
Wide Operating Voltage Range of 2 V to 6 V
D
High-Current Inverting Outputs Drive Up To
D
D
15 LSTTL Loads
Low Power Consumption, 80-µA Max I
CC
’HC257 . . . Typical t
pd
= 9 ns
D
D
D
D
’HC258 . . . Typical t
pd
= 12 ns
±6-mA
Output Drive at 5 V
Low Input Current of 1
µA
Max
Provides Bus Interface from Multiple
Sources in High-Performance Systems
SN54HC257, SN54HC258 . . . FK PACKAGE
(TOP VIEW)
A/B
1A
1B
1Y
2A
2B
2Y
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
G
4A
4B
4Y
3A
3B
3Y
1A
A/B
NC
V
CC
G
1B
1Y
NC
2A
2B
3
4
5
6
7
8
2 1 20 19
18
17
16
15
14
9 10 11 12 13
SN54HC257, SN54HC258 . . . J PACKAGE
SN74HC257, SN74HC258 . . . D, N, NS, OR PW PACKAGE
(TOP VIEW)
4A
4B
NC
4Y
3A
NC − No internal connection
description/ordering information
ORDERING INFORMATION
TA
PDIP − N
PACKAGE†
Tube of 25
Tube of 40
Reel of 2500
SOIC − D
Reel of 250
Tube of 40
Reel of 2500
−40 C 85°C
−40°C to 85 C
SOP − NS
Reel of 2000
Tube of 90
Reel of 2000
Reel of 250
TSSOP − PW
Tube of 90
Reel of 2000
Reel of 250
CDIP − J
−55°C to 125°C
LCCC − FK
Tube of 55
Tube of 25
ORDERABLE
PART NUMBER
SN74HC257N
SN74HC258N
SN74HC257D
SN74HC257DR
SN74HC257DT
SN74HC258D
SN74HC258DR
SN74HC257NSR
SN74HC258NSR
SN74HC257PW
SN74HC257PWR
SN74HC257PWT
SN74HC258PW
SN74HC258PWR
SN74HC258PWT
SNJ54HC257J
SNJ54HC258J
SNJ54HC257FK
SNJ54HC258FK
SNJ54HC257J
SNJ54HC258J
SNJ54HC257FK
SNJ54HC258FK
HC258
HC257
HC258
HC257
HC258
HC257
TOP-SIDE
MARKING
SN74HC257N
SN74HC258N
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
On products compliant to MIL PRF 38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
Copyright
2003, Texas Instruments Incorporated
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
2Y
GND
NC
3Y
3B
1
TI [ TEXAS INSTRUMENTS ]
