M27C4002 DC and AC parameters
17/24
Figure 9. Programming and Verify Modes AC Waveforms
Table 12. Programming Mode AC Characteristics
(1)(2)(3)
Symbol Alt Parameter Test Condition Min Max Unit
t
AVEL
t
AS
Address Valid to Chip Enable Low 2 µs
t
QVEL
t
DS
Input Valid to Chip Enable Low 2 µs
t
VPHEL
t
VPS
V
PP
High to Chip Enable Low 2 µs
t
VCHEL
t
VCS
V
CC
High to Chip Enable Low 2 µs
t
ELEH
t
PW
Chip Enable Program Pulse Width 95 105 µs
t
EHQX
t
DH
Chip Enable High to Input Transition 2 µs
t
QXGL
t
OES
Input Transition to Output Enable Low 2 µs
t
GLQV
t
OE
Output Enable Low to Output Valid 100 ns
t
GHQZ
t
DFP
Output Enable High to Output Hi-Z 0 130 ns
t
GHAX
t
AH
Output Enable High to Address
Transition
0ns
1. T
A
= 25 °C; V
CC
= 6.25V ± 0.25V; V
PP
= 12.75V ± 0.25V.
2. V
CC
must be applied simultaneously with or before V
PP
and removed simultaneously or after V
PP
.
3. Sampled only, not 100% tested.
tAVEL
VALID
AI00730
A0-A17
Q0-Q15
V
PP
V
CC
G
DATA IN
DATA OUT
E
tQVEL
tVPHEL
tVCHEL
tEHQX
tELEH
tGLQV
tQXGL
tGHQZ
tGHAX
PROGRAM
VERIFY
Obsolete Product(s) - Obsolete Product(s)
