N80C42 데이터 시트보기 (PDF) - Intel

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N80C42

UNIVERSAL PERIPHERAL INTERFACE CHMOS 8-BIT SLAVE MICROCONTROLLER

Intel 

UPI-C42 UPI-L42

AC CHARACTERISTICS PROGRAMMING (UPI-C42 AND UPI-L42)

TA e 25 C g5 C VCC e 6 25V g0 25V VDDL e a5V g0 25V VDDH e 12 75V g0 25V

(87C42 87L42 ONLY)

Symbol

Parameter

tAW

tWA

tDW

tWD

tPW

tTW

tWT

tDO

tWW

tr tf

tCY

tRE

tOPW

tDE

u Address Setup Time to RESET

u Address Hold Time after RESET

v Data in Setup Time to PROG

u Data in Hold Time after PROG

Initial Program Pulse Width

Test 0 Setup Time for Program Mode

Test 0 Hold Time after Program Mode

Test 0 to Data Out Delay

RESET Pulse Width to Latch Address

PROG Rise and Fall Times

CPU Operation Cycle Time

u RESET Setup Time before EA

Overprogram Pulse Width

EA High to VDD High

NOTES

1 This variation is a function of the iteration counter value X

u 2 If TEST 0 is high tDO can be triggered by RESET

Min

4tCY

4tCY

4tCY

4tCY

95

4tCY

4tCY

4tCY

05

25

4tCY

2 85

1tCY

Max

105

4tCY

100

3 75

78 75

AC TESTING INPUT OUTPUT WAVEFORM

INPUT OUTPUT

AC TESTING LOAD CIRCUIT

Units

ms

ms

ms

ms(1)

290414 – 16

290414 – 17

19

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