DC and AC characteristics M27C801
18/24
Figure 9. Programming and verify modes AC waveforms
Table 11. Programming mode AC characteristics
(1)
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
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) 45 55 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
(2)
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. V
CC
must be applied simultaneously with or before V
PP
and removed simultaneously or after V
PP
.
2. Sampled only, not 100% tested.
tAVEL
VALID
AI01270
A0-A19
Q0-Q7
V
CC
DATA IN DATA OUT
E
tQVEL
tVCHEL
tVPHEL
tEHQX
tEHVPX
tELQV
tELEH
tEHQZ
tVPLEL
PROGRAM VERIFY
GV
PP
tEHAX
Obsolete Product(s) - Obsolete Product(s)
