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 | Min | Max | Units |
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|
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tAW | Address Setup Time to RESETu | 4tCY |
|
|
tWA | Address Hold Time after RESETu | 4tCY |
|
|
tDW | Data in Setup Time to PROGv | 4tCY |
|
|
tWD | Data in Hold Time after PROGu | 4tCY |
|
|
tPW | Initial Program Pulse Width | 95 | 105 | ms |
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 |
|
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tr, tf | PROG Rise and Fall Times | 0.5 | 100 | ms |
tCY | CPU Operation Cycle Time | 2.5 | 3.75 | ms |
tRE | RESET Setup Time before EAu | 4tCY |
|
|
tOPW | Overprogram Pulse Width | 2.85 | 78.75 | ms(1) |
tDE | EA High to VDD High | 1tCY |
|
|
NOTES:
1.This variation is a function of the iteration counter value, X.
2.If TEST 0 is high, tDO can be triggered by RESETu.
AC TESTING INPUT/OUTPUT WAVEFORM | AC TESTING LOAD CIRCUIT |
INPUT/OUTPUT
290414 – 16
290414 – 17
19
