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DM74AS280N

Description
IC 9-BIT GEN/CHKER 14DIP
Categorysemiconductor    logic   
File Size64KB,6 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
Environmental Compliance
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DM74AS280N Overview

IC 9-BIT GEN/CHKER 14DIP

DM74AS280N Parametric

Parameter NameAttribute value
logical typeParity generator/checker
Number of circuits9 bits
Current - output high, low2mA,20mA
Voltage - Power4.5V ~ 5.5V
Operating temperature0°C ~ 70°C
Installation typeThrough hole
Package/casing14-DIP(0.300",7.62mm)
Supplier device packaging14-PDIP
DM74AS280 9-Bit Parity Generator/Checker
October 1986
Revised March 2000
DM74AS280
9-Bit Parity Generator/Checker
General Description
These universal, 9-bit parity generators/checkers utilize
advanced Schottky high performance circuitry and feature
odd/even outputs to facilitate operation of either odd or
even parity applications. The word length capability is eas-
ily expanded by cascading.
The DM74AS280 can be used to upgrade the performance
of most systems utilizing the ’180 parity generator/checker.
Although the DM74AS280 is implemented without
expander inputs, the corresponding function is provided by
the availability of an input at pin 4 and no internal connec-
tion at pin 3. This permits the DM74AS280 to be substi-
tuted for the ’180 in existing designs to produce identical
function even if DM74AS280s are mixed with existing
’180s.
Features
s
Generates either odd or even parity for nine data lines
s
Inputs are buffered to lower the drive requirements
s
Can be used to upgrade existing systems using MSI
parity circuits
s
Cascadable for N-bits
s
Advanced oxide-isolated, ion-implanted Schottky
TTL process
s
Switching specifications at 50 pF
s
Switching specifications guaranteed over full
temperature and V
CC
range
Ordering Code:
Order Number
DM74AS280M
DM74AS280N
Package Number
M14A
N14A
Package Description
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
Number of Inputs (A thru I)
that are HIGH
0, 2, 4, 6, 8
1, 3, 5, 7, 9
L
=
LOW State
H
=
HIGH State
Outputs
∑Even
H
L
∑Odd
L
H
© 2000 Fairchild Semiconductor Corporation
DS006303
www.fairchildsemi.com

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Description IC 9-BIT GEN/CHKER 14DIP IC 9-BIT GEN/CHKER 14SOIC IC 9-BIT GEN/CHKER 14SOIC
logical type Parity generator/checker Parity generator/checker Parity generator/checker
Number of circuits 9 bits 9 bits 9 bits
Current - output high, low 2mA,20mA 2mA,20mA 2mA,20mA
Voltage - Power 4.5V ~ 5.5V 4.5V ~ 5.5V 4.5V ~ 5.5V
Operating temperature 0°C ~ 70°C 0°C ~ 70°C 0°C ~ 70°C
Installation type Through hole surface mount surface mount
Package/casing 14-DIP(0.300",7.62mm) 14-SOIC (0.154", 3.90mm wide) 14-SOIC (0.154", 3.90mm wide)
Supplier device packaging 14-PDIP 14-SOIC 14-SOIC
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