Intel UPI-C42 User Manual
Page 19
UPI-C42 UPI-L42
AC CHARACTERISTICS
PROGRAMMING (UPI-C42 AND UPI-L42)
T
A
e
25 C
g
5 C V
CC
e
6 25V
g
0 25V V
DDL
e a
5V
g
0 25V V
DDH
e
12 75V
g
0 25V
(87C42 87L42 ONLY)
Symbol
Parameter
Min
Max
Units
t
AW
Address Setup Time to RESET
u
4t
CY
t
WA
Address Hold Time after RESET
u
4t
CY
t
DW
Data in Setup Time to PROG
v
4t
CY
t
WD
Data in Hold Time after PROG
u
4t
CY
t
PW
Initial Program Pulse Width
95
105
m
s
t
TW
Test 0 Setup Time for Program Mode
4t
CY
t
WT
Test 0 Hold Time after Program Mode
4t
CY
t
DO
Test 0 to Data Out Delay
4t
CY
t
WW
RESET Pulse Width to Latch Address
4t
CY
t
r
t
f
PROG Rise and Fall Times
0 5
100
m
s
t
CY
CPU Operation Cycle Time
2 5
3 75
m
s
t
RE
RESET Setup Time before EA
u
4t
CY
t
OPW
Overprogram Pulse Width
2 85
78 75
ms
(1)
t
DE
EA High to V
DD
High
1t
CY
NOTES
1 This variation is a function of the iteration counter value X
2 If TEST 0 is high t
DO
can be triggered by RESET
u
AC TESTING INPUT OUTPUT WAVEFORM
INPUT OUTPUT
290414 – 16
AC TESTING LOAD CIRCUIT
290414 – 17
19