m58lw064a STMicroelectronics, m58lw064a Datasheet - Page 8

• Manufacturer Part Number: m58lw064a
• Description: 64 Mbit X16 And X16/x32, Block Erase Low Voltage Flash Memories
• Manufacturer: STMicroelectronics

M58LW064A, M58LW064B
BUS OPERATIONS
The following operations can be performed using
the appropriate bus configuration:
Asynchronous
– Read Array
– Read Electronic Signature
– Read Block Protection
– Read Status Register
– Read Query
– Write
– Output Disable
– Standby
– Reset/Power-down
Synchronous
– Address Latch
– Burst Read
– Burst Read Suspend
– Burst Read Interrupt
– Burst Read Resume
– Burst Address Advance
See Tables 3, 4, 5, 6 and 7.
Table 3. Asynchronous Bus Operations
Note: 1. X = Don’t Care V
8/53
Read Array
Read Electronic Signature or
Block Protection Status
Read Status
P/E.C. Active
Read Query
Write
Output Disable
Standby
Reset/Power-down
2. ? = need to check with designers - X or V
Operation
IL
or V
IH
. High = V
V
V
V
V
V
V
V
E
X
IH
IL
IL
IL
IL
IL
IL
IH
or V
IL
HH
???
V
V
V
V
V
V
.
G
X
X
IH
IH
IL
IL
IL
IL
(1)
V
V
V
V
V
V
W
X
X
IH
IH
IH
IH
IH
IL
COMMAND INTERFACE
Instructions, made up of Commands written in Cy-
cles, can be given to the Program/Erase Controller
(P/E.C.) by writing to the Command Interface
(C.I.). At power-up or on exit from power down or
if V
is reset to Read Array. Any incorrect command will
reset the device to Read Array. Any improper com-
mand sequence will cause the Status Register to
report the error condition and the device will de-
fault to Read Status Register.
The internal Program/Erase Controller (P/E.C.)
automatically handles all timing and verification of
the Program and Erase operations. The Status
Register information P/ECS on DQ7 can be read
at any time, during programming or erase, to mon-
itor the progress of the operation.
High
High
High
High
High
High
High
DD
RP
V
IL
is lower than V
V
L
X
X
X
X
X
X
X
IL
Output Block Protection Status
Manufacturer or Device Code
LKO
Status Register Output
, the Command Interface
CFI Query Output
Data Output
DQ0-DQ31
Data Input
High Z
High Z
High Z