ꢀ ꢁ ꢂꢃꢄ ꢅꢅ ꢆ ꢇ ꢈ ꢉꢊ ꢋ ꢁꢂ ꢃꢄ ꢅꢅꢆ ꢇꢈ
ꢌ ꢍꢎꢏ ꢄꢊ ꢐꢂꢑꢏ ꢄ ꢒꢊꢓ ꢔ ꢕꢔꢑꢂꢄꢖ ꢑꢗꢘ ꢃꢙꢔ ꢃꢚ ꢔ ꢑꢗ
ꢛ
ꢛ
SCAS046A − D3148, AUGUST 1988 − REVISED APRIL 1993
54ACT11280 . . . J PACKAGE
74ACT11280 . . . D OR N PACKAGE
• Inputs Are TTL-Voltage Compatible
• Generates Either Odd or Even Parity for
(TOP VIEW)
Nine Data Lines
• Cascadable for n-Bits Parity
B
A
C
D
E
V
1
2
3
4
5
6
7
14
13
12
11
10
9
• Flow-Through Architecture Optimizes
Σ ODD
GND
Σ EVEN
NC
PCB Layout
CC
• Center-Pin V
and GND Configurations
Minimize High-Speed Switching Noise
CC
F
G
H
• EPICt (Enhanced-Performance Implanted
I
8
CMOS) 1-mm Process
• 500-mA Typical Latch-Up Immunity
at 125°C
54ACT11280 . . . FK PACKAGE
(TOP VIEW)
• Package Options Include Plastic
Small-Outline Packages, Ceramic Chip
Carriers, and Standard Plastic and Ceramic
300-mil DIPs
3
2
1
20 19
18
G
C
NC
B
4
5
6
7
8
NC
H
description
17
16
15
14
These universal, monolithic, 9-bit parity
generators/checkers feature odd and even
outputs to facilitate operation of either an odd or
NC
I
NC
A
9 10 11 12 13
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.
NC − No internal connection
†
logic symbol
FUNCTION TABLE
NUMBER OF INPUTS
A THRU I
THAT ARE HIGH
OUTPUTS
2
A
2k
S EVEN
S ODD
1
B
0, 2, 4, 6, 8
1, 3, 5, 7, 9
H
L
L
14
C
H
13
D
5
3
Σ EVEN
Σ ODD
12
E
10
F
9
G
8
H
7
I
†
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.
ꢐ
ꢐ
ꢑ
ꢖ
ꢭ
ꢜ
ꢨ
ꢝ
ꢃ
ꢦ
ꢄ
ꢧ
ꢏ
ꢡ
ꢖ
ꢟ
ꢕ
ꢠ
ꢜ
ꢂ
ꢄ
ꢂ
ꢞ
ꢟ
ꢩ
ꢠ
ꢡ
ꢧ
ꢢ
ꢣ
ꢤ
ꢤ
ꢥ
ꢥ
ꢞ
ꢞ
ꢡ
ꢡ
ꢟ
ꢟ
ꢞ
ꢦ
ꢦ
ꢪ
ꢧ
ꢨ
ꢢ
ꢢ
ꢩ
ꢩ
ꢟ
ꢥ
ꢤ
ꢣ
ꢦ
ꢦ
ꢡ
ꢠ
ꢪ
ꢄꢩ
ꢨ
ꢫ
ꢦ
ꢬ
ꢞ
ꢧ
ꢤ
ꢦ
ꢥ
ꢞ
ꢥ
ꢡ
ꢢ
ꢟ
ꢨ
ꢭ
ꢤ
ꢟ
ꢥ
ꢥ
ꢩ
ꢦ
ꢮ
Copyright 1993, Texas Instruments Incorporated
ꢢ
ꢡ
ꢧ
ꢥ
ꢡ
ꢢ
ꢣ
ꢥ
ꢡ
ꢦ
ꢪ
ꢞ
ꢠ
ꢞ
ꢧ
ꢩ
ꢢ
ꢥ
ꢯ
ꢥ
ꢩ
ꢢ
ꢡ
ꢠ
ꢰ
ꢤ
ꢏ
ꢟ
ꢣ
ꢩ
ꢦ
ꢥ
ꢤ
ꢟ
ꢭ
ꢤ
ꢢ
ꢭ
ꢱ
ꢤ
ꢥ ꢩ ꢦ ꢥꢞ ꢟꢳ ꢡꢠ ꢤ ꢬꢬ ꢪꢤ ꢢ ꢤ ꢣ ꢩ ꢥ ꢩ ꢢ ꢦ ꢮ
ꢢ
ꢢ
ꢤ
ꢟ
ꢥ
ꢲ
ꢮ
ꢐ
ꢢ
ꢡ
ꢭ
ꢨ
ꢧ
ꢥ
ꢞ
ꢡ
ꢟ
ꢪ
ꢢ
ꢡ
ꢧ
ꢩ
ꢦ
ꢦ
ꢞ
ꢟ
ꢳ
ꢭ
ꢡ
ꢩ
ꢦ
ꢟ
ꢡ
ꢥ
ꢟ
ꢩ
ꢧ
ꢩ
ꢦ
ꢦ
ꢤ
ꢢ
ꢞ
ꢬ
ꢲ
ꢞ
ꢟ
ꢧ
ꢬ
ꢨ
ꢭ
ꢩ
2−1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001