8741AH datasheet(14/20 Pages) INTEL

14 / 20 page

UPI-41AH42AH

AC CHARACTERISTICSPROGRAMMING

TA e 25 C g5 C VCC e 6V g025V VDDL ea5V g025V VDDH e 125V g05V

(8741AH8742AH ONLY)

Symbol

Parameter

Min

Max

Units

tAW

Address Setup Time to RESET

4tCY

tWA

Address Hold Time After RESET

4tCY

tDW

Data in Setup Time to PROG

4tCY

tWD

Data in Hold Time After PROG

4tCY

tPW

Initial Program Pulse Width

095

105

ms(1)

tTW

Test 0 Setup Time for Program Mode

4tCY

tWT

Test 0 Hold Time After Program Mode

4tCY

tDO

Test 0 to Data Out Delay

4tCY

tWW

RESET Pulse Width to Latch Address

4tCY

tr tf

PROG Rise and Fall Times

100

tCY

CPU Operation Cycle Time

375

tRE

RESET Setup Time Before EA

4tCY

tOPW

Overprogram Pulse Width

285

7875

ms(2)

tDE

EA High to VDD High

1tCY

NOTES

1 Typical Initial Program Pulse width tolerance e 1ms g5%

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

3 If TEST 0 is high tDO can be triggered by RESET

AC CHARACTERISTICS PORT 2 TA e 0 Cto a70 C VCC ea5V g10%

Symbol

Parameter

f(tCY)(3)

Min

Max

Units

tCP

Port Control Setup Before Falling Edge of PROG

115 tCYb28

ns(1)

tPC

Port Control Hold After Falling Edge of PROG

110 tCY

125

ns(2)

tPR

PROG to Time P2 Input Must Be Valid

815 tCYb16

650

ns(1)

tPF

Input Data Hold Time

150

ns(2)

tDP

Output Data Setup Time

210 tCY

250

ns(1)

tPD

Output Data Hold Time

110 tCYb80

ns(2)

tPP

PROG Pulse Width

610 tCY

750

NOTES

1 CL e 80 pF

2 CL e 20 pF

3 tCY e 125 ms

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