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LH0082 (1/2) IL08
COUNTER TIMER CIRCUIT
—TOP VIEW— INPUTS CE CS0, CS1 CT0 - CT3 IEI IORQ M1 READ Ø
D4 I/O 1 D5 I/O 2 D6 I/O 3 D7 I/O 4 GND 5 READ IN 6 Z0 OUT 7 Z1 OUT 8 Z2 OUT 9 IORQ IN 10 IEO OUT 11 INT OUT 12 IEI IN 13 M1 IN 14
28 D3 I/O 27 D2 I/O 26 D1 I/O 25 D0 I/O 24 VDD 23 E IN 22 CT0 IN 21 CT1 IN 20 CT2 IN 19 CT3 IN 18 CSO IN 17 RESET IN 16 CE IN 15 Ø IN
: : : : : : : :
CHIP ENABLE CHANNEL SELECT EXTERNAL CLOCK/TIMER TRIGGER INTERRUPT ENABLE I/O REQUEST MACHINE CYCLE1 READ CYCLE STATUS SYSTEM CLOCK
OUTPUTS IEO : INTERRUPT ENABLE INT : INTERRUPT REQUEST (OPEN DRAIN) Z0 - Z2 : ZERO COUNT/TIME OTHERS D0 - D7
: 3-STATE DATA
CHANNEL SELECT FUNCTION CS1 CS0 0 0 1 1 0 1 0 1 SELECTED CHANNEL 0 1 2 0 : LOW LEVEL 3 1 : HIGH LEVEL
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LH0082 Datasheet
