M29W800AB STMICROELECTRONICS [STMicroelectronics], M29W800AB Datasheet - Page 20

• Manufacturer Part Number: M29W800AB
• Description: 8 Mbit 1Mb x8 or 512Kb x16, Boot Block Low Voltage Single Supply Flash Memory
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M29W800AT, M29W800AB
Table 19. Write AC Characteristics, E Controlled
(T
Note: 1. Sampled only, not 100% tested.
POWER SUPPLY
Power Up
The memory Command Interface is reset on pow-
er up to Read Array. The device does not accept
commands on the first rising edge of W, if both W
and E are at V
Any write cycle initiation is blocked when V
below V
20/33
t
PHPHH
A
t
t
Symbol
PHWL
t
EHRL
t
VCHWL
t
= 0 to 70 C, –20 to 85 C or –40 to 85 C)
t
t
t
t
t
t
t
t
t
t
EHWH
EHDX
DVEH
EHEL
EHGL
ELEH
GHEL
WLEL
AVAV
AVEL
ELAX
PLPX
2. This timing is for Temporary Block Unprotection operation.
(1, 2)
LKO
(1)
(1)
.
t
t
t
t
BUSY
t
t
t
t
VIDR
t
t
t
t
CPH
OEH
t
t
RSP
t
VCS
IL
Alt
WC
WH
WS
AS
DS
DH
AH
CP
RP
with G at V
Address Valid to Next Address Valid
Address Valid to Chip Enable Low
Input Valid to Chip Enable High
Chip Enable High to Input Transition
Chip Enable High to Chip Enable Low
Chip Enable High to Output Enable Low
Program Erase Valid to RB Delay
Chip Enable High to Write Enable High
Chip Enable Low to Address Transition
Chip Enable Low to Chip Enable High
Output Enable High Chip Enable Low
RP Rise TIme to V
RP High to Write Enable Low
RP Pulse Width
V
Write Enable Low to Chip Enable Low
CC
High to Write Enable Low
IH
during power-up.
Parameter
ID
CC
is
Supply Rails
Normal precautions must be taken for supply volt-
age decoupling; each device in a system should
have the V
close to the V
widths should be sufficient to carry the V
gram and erase currents required.
V
CC
Min
500
500
80
35
30
45
35
50
0
0
0
0
0
4
0
CL = 30pF
= 3.0V to 3.6V
CC
M29W800AT / M29W800AB
80
rail decoupled with a 0.1 F capacitor
CC
Max
80
and V
V
SS
CC
Min
500
500
90
45
30
45
35
50
0
0
0
0
0
4
0
pins. The PCB trace
CL = 30pF
= 3.0V to 3.6V
90
Max
90
CC
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
pro-
s
s