W764M32V-XSBX
supply at VCC. Password Sector Protection prevents unauthorized
write and erase operations in any combination of sectors through
a user-defined 64-bit password.
circuitry. Asystem reset would thus also reset the device, enabling
the host system to read boot-up firmware from the Flash memory
device.
The erase Suspend / Erase Resume feature allows the host
system to pause and erase operation in a given sector to read or
program any other sector and then complete the erase operation.
The Program Suspend / Program Resume feature enables the
host system to pause the program operation in a given sector to
read any other sector and then complete the program operation.
The device reduces power consumption in the standby mode when
it detects specific voltage levels on CS# and RESET#, or when
addresses have been stable for a specified period of time.
The Secured Silicon Sector provides a 128-work/256-byte area for
code or data that can be permanently protected. Once this sector
is protected, no further changes within the sector can occur.
The hardware RESET# pin terminates any operation in progress
and resets the device, after which it is then ready for a new
operation. The RESET# pin may be tied to the system reset
The Write Protect (WP# / ACC) feature protects the first or last
sector by asserting a logic low on the WP# pin.
FIGURE 1 – PIN CONFIGURATION (TOP VIEW)
PIN DESCRIPTION
DQ0-31
Data Inputs/Outputs
Address Inputs
A0-24, A-1*
WE#0-1
Write Enables
1
2
3
4
5
6
7
8
9
CS#0-1
Chip Selects
OE#
Output Enable
RESET#
Hardware Reset
Hardware Write Protection/Acceleration
Ready/Busy Output
Power Supply
V
CC
DQ10
DQ27
DQ29
DQ30
GND
GND
DQ17
DQ2
DQ24
DQ25
DQ11
DQ28
DQ31
DQ8
DQ9
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
A0
A1
A3
A4
V
CC
GND
A
B
C
D
E
F
WP#/ACC
RY/BY#
V
IO
A6
V
IO
VCC
DQ12
DQ13
DQ14
DQ15
DQ0
DQ26
DNU
OE#
A2
A5
RY/BY#
WP/ACC#
WE1#
GND
GND
WE0#
A21
A7
VIO
I/O Power Supply
Ground
GND
DNU
RESET#
CS0#
A14
A15
A22
A23
A17
A18
A8
Do Not Use
* A-1 is the least significant address.
V
IO
V
IO
V
V
IO
IO
V
CC
CC
V
CC
CC
V
V
IO
IO
V
V
BLOCK DIAGRAM
G
H
J
DQ1
DQ16
DQ3
V
IO
VIO
A19
A-1
CS1#
A20
A10
A12
A13
WE0#
CS0#
WE1#
CS1#
DQ18
DQ19
DNU
DQ21
DQ23
DQ7
RY/BY#
RESET#
OE#
DQ4
DQ20
DQ6
A9
K
L
A-1,A0-24
V
IO
DQ5
A16
A24
A11
V
IO
64M X 8
64M X 8
64M X 8
64M X 8
GND
V
CC
DQ22
V
CC
GND
M
WP#/ACC
DQ0-7
DQ8-15
DQ16-23
DQ24-31
Microsemi Corporation reserves the right to change products or specifications without notice.
June 2012 © 2012 Microsemi Corporation. All rights reserved.
Rev. 10
2
Microsemi Corporation • (602) 437-1520 • www.microsemi.com
Not Recommended for New Designs — Replaced by W764M32V1-XBX
MERCURY [ MERCURY UNITED ELECTRONICS INC ]
