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9600-PRO - Keyboard encoder

Description

of pin functions Name Symbol X outputs X0-X8 Y inputs Clock Any key down Data outputs Data ready Y0-Y9 AKO B9-B1 DR Delay node input Delay Shift input Control input Shift CNTRL Pin 40-32 17-26 CK 5 6-14 16 31 29 28 Lockout/rollover Power supply Ground LO/RO Vcc Gnd 4 30 15 Function Ex

Features

  • q On-chip contact bounce elimination q N-Key rollover or lockout operation q TTL compatible data outputs q Normal, shift, control and shift-control modes q Simple binary code output for user conversion q Single + 5V supply. Pin connections Top view 232-2863 Electrical characteristics TA = 0°C to 700C, VCC = 5V ±5% Parameter Conditions dc characteristics Low level input voltage High level input voltage Y input high level Y input low level Input leakage current Input with pull down R Y input.

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Datasheet preview – 9600-PRO

Datasheet Details

Part number 9600-PRO
Manufacturer RS Components
File Size 159.19 KB
Description Keyboard encoder
Datasheet download datasheet 9600-PRO Datasheet
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Full PDF Text Transcription

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Data Pack H Issued March 1997 232-2863 Data Sheet Keyboard encoder IC 9600-PRO RS stock number 633-161 The 9600 is a keyboard encoder that contains all the logic necessary to debounce and encode the SPST key switches used in a keyboard matrix and provide a fully decoded data output consisting of a nine bit simple binary code which can be converted to the required information code by a PROM or microprocessor etc. This permits maximum user flexibility for key layout and coding. Contact bounce elimination circuitry with an externally controllable delay is included and data outputs are TTL compatible. Absolute maximum ratings Positive voltage any pin with respect to Gnd ____+8.0V Negative voltage any pin with respect to Gnd ____0.
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