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HD74HC180

Hitachi Semiconductor
Part Number HD74HC180
Manufacturer Hitachi Semiconductor
Description 8-bit Odd/Even Parity Generator/Checker
Published Mar 23, 2005
Detailed Description HD74HC180 8-bit Odd/Even Parity Generator/Checker Description This universal, monolithic, 9-bit (8 data bits plus 1 par...
Datasheet PDF File HD74HC180 PDF File

HD74HC180
HD74HC180

Overview
HD74HC180 8-bit Odd/Even Parity Generator/Checker Description This universal, monolithic, 9-bit (8 data bits plus 1 parity bit) parity generator/checker features odd/even outputs and control inputs to facilitate operation in either odd or even parity applications.
Depending on whether even or odd parity is being generated or checked, the even or odd inputs can be utilized as the parity of 9th-bit input.
The wordlength capability is easily expanded by cascading.
Features • • • • • High Speed Operation: High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Function Table Inputs ∑ of H’s at A Thru H Even Odd Even Odd X X Even H H L L H L Odd L L H H H L Outputs ∑ Even H L L H L H ∑ Odd L H H L L H HD74HC180 Pin Arrangement G Inputs H Even Inputs Odd Σ Even Σ Odd GND 1 G 2 3 4 5 6 7 (Top view) H Even Odd Σ Even Σ Odd A F E D C B 14 VCC 13 F 12 E 11 D 10 C 9 8 ...


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