74ACT11280 Datasheet, PDF (1/5 Pages) Texas Instruments – 9-BIT PARITY GENERATORS/CHECKERS

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• Inputs Are TTL-Voltage Compatible
• Generates Either Odd or Even Parity for
Nine Data Lines
• Cascadable for n-Bits Parity
• Flow-Through Architecture Optimizes
PCB Layout
• Center-Pin V_CC and GND Configurations
Minimize High-Speed Switching Noise
• EPICt (Enhanced-Performance Implanted
CMOS) 1-mm Process
• 500-mA Typical Latch-Up Immunity
at 125°C
• Package Options Include Plastic
Small-Outline Packages, Ceramic Chip
Carriers, and Standard Plastic and Ceramic
300-mil DIPs
description
These universal, monolithic, 9-bit parity
generators/checkers feature odd and even
outputs to facilitate operation of either an odd or
even parity application. The word-length
capability is easily expanded by cascading.
The 54ACT11280 is characterized for operation
over the full military temperature range of − 55°C
to 125°C. The 74ACT11280 is characterized for
operation from − 40°C to 85°C.
FUNCTION TABLE
NUMBER OF INPUTS
A THRU I
THAT ARE HIGH
OUTPUTS
S EVEN S ODD
0, 2, 4, 6, 8
H
L
1, 3, 5, 7, 9
L
H
54ACT11280, 74ACT11280
9ĆBIT PARITY GENERATORS/CHECKERS
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SCAS046A − D3148, AUGUST 1988 − REVISED APRIL 1993
54ACT11280 . . . J PACKAGE
74ACT11280 . . . D OR N PACKAGE
(TOP VIEW)
B₁
A₂
Σ ODD 3
GND 4
Σ EVEN 5
NC 6
I7
14 ^C
13 D
12 E
11 V_CC
10 F
9G
8H
54ACT11280 . . . FK PACKAGE
(TOP VIEW)
C
3 2 1 20 19
4
18
G
NC ₅
17 ^NC
B6
16 H
NC 7
15 NC
A8
14 I
9 10 11 12 13
NC − No internal connection
logic symbol^†
2
2k
A
1
B
14
C
13
D
12
E
10
F
9
G
8
H
7
I
5
Σ EVEN
3
Σ ODD
† _{This symbol is in accordance with ANSI/IEEE Std 91-1984}
and IEC Publication 617-12.
Pin numbers shown are for the D, J, and N packages.
EPIC is a trademark of Texas Instruments Incorporated.
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.
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• POST OFFICE BOX 1443 HOUSTON, TEXAS 77001
Copyright  1993, Texas Instruments Incorporated
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