DC and AC parameters M27W512
16/22
Figure 7. Margin mode AC waveforms
1. A8 High level = 5V; A9 High level = 12V.
AI00736B
tA9HVPH tVPXA9X
A8
E
GV
PP
A10 Set
V
CC
tVPHEL
tA10LEH
tEXVPX
tA10HEH
A9
A10 Reset
tEXA10X
Table 11. Programming mode AC characteristics
Symbol Alt Parameter Test condition
(1)(2)
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
VCHEL
t
VCS
V
CC
high to Chip Enable low 2 µs
t
VPHEL
t
OES
V
PP
high to Chip Enable low 2 µs
t
VPLVPH
t
PRT
V
PP
rise time 50 ns
t
ELEH
t
PW
Chip Enable program pulse width (Initial) 95 105 µs
t
EHQX
t
DH
Chip Enable high to input transition 2 µs
t
EHVPX
t
OEH
Chip Enable high to V
PP
transition 2 µs
t
VPLEL
t
VR
V
PP
low to Chip Enable low 2 µs
t
ELQV
t
DV
Chip Enable low to output valid 1 µs
t
EHQZ
(3)
t
DFP
Chip Enable high to output Hi-Z 0 130 ns
t
EHAX
t
AH
Chip Enable high to address transition 0 ns
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.
Obsolete Product(s) - Obsolete Product(s)
