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Features

? Buffered Inputs

? Typical Propagation Delay

- 10ns at VCC = 5V, TA = 25oC, CL = 50pF

? Exceeds 2kV ESD Protection per MIL-STD-883,

Method 3015

? SCR-Latchup-Resistant CMOS Process and Circuit

Design

? Speed of Bipolar FAST?/AS/S with Significantly

Reduced Power Consumption

? Balanced Propagation Delays

? AC Types Feature 1.5V to 5.5V Operation and

Balanced Noise Immunity at 30% of the Supply

? ±24mA Output Drive Current

- Fanout to 15 FAST? ICs

- Drives 50W Transmission Lines

Description

The ’AC280 and ’ACT280 are 9-bit odd/even parity generator/

checkers that utilize Advanced CMOS Logic technology.

Both even and odd parity outputs are available for checking

or generating parity for words up to nine bits long. Even parity

is indicated (?E output is HIGH) when an even number of

data inputs is HIGH. Odd parity is indicated (?O output is

HIGH) when an odd number of data inputs is HIGH. Parity

checking for words larger than nine bits can be accomplished

by tying the ?E output to any input of an additional

’AC280, ’ACT280 parity checker.