Hitachi HD74HC180
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. The wordlength capability is easily expanded by cascading.| Part No. | HD74HC180 |
|---|---|
| Datasheet | HD74HC180 Download |
| Manufacturer |  Hitachi |
| Description | 8-bit Odd/Even Parity Generator/Checker |
| Buy | Stock & Price |
DESCRIPTION
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.FEATURES
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● 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 B A Inputs Outputs Logic Diagram Even Odd A B C Σ Even D E F Σ Odd G H 2 HD74HC180 DC Characteristics Ta = 25°C Item Input voltage Symbol VIH Ta = –40 to +85°C Max — — — 0.5 1.35 1.8 — — — — — 0.1 0.1 0.1 0.33 0.33 ±1.0 40 µA µA I OL = 4 mA I OL = 5.2 mA Vin = VCC or GND Vin = VCC or GND, Iout = 0 µA V I OH = –4 mA I...
