74AC253_00 Datasheet, PDF (1/9 Pages) Fairchild Semiconductor – Dual 4-Input Multiplexer with 3-STATE Outputs

November 1988
Revised October 2000
74AC253 • 74ACT253
Dual 4-Input Multiplexer with 3-STATE Outputs
General Description
The AC/ACT253 is a dual 4-input multiplexer with 3-STATE
outputs. It can select two bits of data from four sources
using common select inputs. The outputs may be individu-
ally switched to a high impedance state with a HIGH on the
respective Output Enable (OE) inputs, allowing the outputs
to interface directly with bus oriented systems.
Features
s I_CC and I_OZ reduced by 50%
s Multifunction capability
s Non inverting 3-STATE outputs
s Outputs source/sink 24 mA
s ACT253 has TTL-compatible inputs
Ordering Code:
Order Number Package Number
Package Description
74AC253SC
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
74AC253SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74AC253PC
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
74ACT253SC
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
74ACT253SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ACT253MTC
MTC16
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74ACT253PC
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Device also available Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Diagrams
Connection Diagram
IEEE/IEC
Pin Descriptions
Pin Names
I_0a–I_3a
I_0b–I_3b
S₀, S₁
OE_a
OE_b
Z_a, Z_b
Description
Side A Data Inputs
Side B Data Inputs
Common Select Inputs
Side A Output Enable Input
Side B Output Enable Input
3-STATE Outputs
FACT is a trademark of Fairchild Semiconductor Corporation.
© 2000 Fairchild Semiconductor Corporation DS009946
www.fairchildsemi.com