m27w256 STMicroelectronics, m27w256 Datasheet - Page 16

• Manufacturer Part Number: m27w256
• Description: 256 Kbit 32kb X 8 Low Voltage Uv Eprom And Otp Eprom
• Manufacturer: STMicroelectronics

DC and AC parameters
Table 10.
1. V
2. Sampled only, not 100% tested.
Figure 9.
16/23
t
Symbol
GHQZ
t
t
t
t
t
t
t
VPHPL
VCHPL
t
t
t
PHQX
QXGL
GLQV
GHAX
QVPL
AVPL
PLPH
ELPL
CC
must be applied simultaneously with or before V
(2)
V CC
A0-A14
Q0-Q7
V PP
E
G
T
Programming Mode AC Characteristics
Programming and Verify Modes AC Waveforms
A
t
t
t
t
t
t
t
t
Alt
t
t
VPS
VCS
CES
OES
DFP
t
PW
DS
DH
OE
AH
AS
= 25 °C; V
Address Valid to Program Low
Input Valid to Program Low
V
V
Chip Enable Low to Program Low
Program Pulse Width
Program High to Input Transition
Input Transition to Output Enable Low
Output Enable Low to Output Valid
Output Enable High to Output Hi-Z
Output Enable High to Address Transition
PP
CC
High to Program Low
High to Program Low
CC
tVCHEL
tVPHEL
tQVEL
tAVEL
= 6.25V ± 0.25V; V
tELEH
DATA IN
Parameter
PROGRAM
PP
and removed simultaneously or after V
PP
VALID
tEHQX
= 12.75V ± 0.25V
(1)
tQXGL
VERIFY
tGLQV
DATA OUT
Test Condition
PP
tGHQZ
tGHAX
.
Min.
95
2
2
2
2
2
2
2
0
0
AI00759
Max.
105
100
130
M27W256
Unit
µs
µs
µs
µs
µs
µs
µs
µs
ns
ns
ns