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74AC257MTC Datasheet

  • 74AC257MTC

  • Quad 2-Input Multiplexer with 3-STATE Outputs

  • 9頁

  • FAIRCHILD

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74AC257 鈥?74ACT257 Quad 2-Input Multiplexer with 3-STATE Outputs
November 1988
Revised November 1999
74AC257 鈥?74ACT257
Quad 2-Input Multiplexer with 3-STATE Outputs
General Description
The AC/ACT257 is a quad 2-input multiplexer with 3-
STATE outputs. Four bits of data from two sources can be
selected using a Common Data Select input. The four out-
puts present the selected data in true (noninverted) form.
The outputs may be switched to a high impedance state by
placing a logic HIGH on the common Output Enable (OE)
input, allowing the outputs to interface directly with bus-ori-
ented systems.
Features
s
I
CC
and I
OZ
reduced by 50%
s
Multiplexer expansion by tying outputs together
s
Noninverting 3-STATE outputs
s
Outputs source/sink 24 mA
s
ACT257 has TTL-compatible inputs
Ordering Code:
Order Number
74AC257SC
74AC257SJ
74AC257MTC
74AC257PC
74ACT257SC
74ACT257SJ
74ACT257MTC
74ACT257PC
Package Number
M16A
M16D
MTC16
N16E
M16A
M16D
MTC16
N16E
Package Description
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150鈥?Narrow Body
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300鈥?Wide
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150鈥?Narrow Body
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300鈥?Wide
Device also available in Tape and Reel. Specify by appending suffix letter 鈥淴鈥?to the ordering code.
Logic Symbols
Connection Diagram
IEEE/IEC
Pin Descriptions
Pin Names
S
OE
I
0a
鈥揑
0d
I
1a
鈥揑
1d
Z
a
鈥揨
d
Description
Common Data Select Input
3-STATE Output Enable Input
Data Inputs from Source 0
Data Inputs from Source 1
3-STATE Multiplexer Outputs
FACT錚?is a trademark of Fairchild Semiconductor Corporation.
漏 1999 Fairchild Semiconductor Corporation
DS009949
www.fairchildsemi.com

74AC257MTC 產(chǎn)品屬性

  • 2,350

  • 集成電路 (IC)

  • 邏輯 - 信號開關(guān)，多路復(fù)用器，解碼器

  • 74AC

  • 多路復(fù)用器

  • 4 x 2:1

  • 1

  • 24mA，24mA

  • 單電源

  • 2 V ~ 6 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 16-TSSOP（0.173"，4.40mm 寬）

  • 16-TSSOP

  • 管件

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