MM74C923WMX Просмотр технического описания (PDF) - Fairchild Semiconductor

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Компоненты Описание

производитель

MM74C923WMX

16-Key Encoder • 20-Key Encoder

Fairchild Semiconductor 

Typical Performance Characteristics

Typical Irp vs VIN at Any Y Input

Typical Ron vs VOUT at Any X Output

Typical FSCAN vs COSC

Typical Debounce Period vs CKBM

Typical Applications

Synchronous Handshake (MM74C922)

Synchronous Data Entry Onto Bus (MM74C922)

The keyboard may be synchronously scanned by omitting the capacitor at

osc. and driving osc. directly if the system clock rate is lower than 10 kHz

Outputs are enabled when valid entry is made and go into 3-STATE when

key is released.

The keyboard may be synchronously scanned by omitting the capacitor at

osc. and driving osc. directly if the system clock rate is lower than 10 kHz

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www.fairchildsemi.com

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