M36W432BG ST Microelectronics, M36W432BG Datasheet - Page 6

• Manufacturer Part Number: M36W432BG
• Description: 32 Mbit 2Mb x16 / Boot Block Flash Memory and 4 Mbit 256Kb x16 SRAM / Multiple Memory Product
• Manufacturer: ST Microelectronics

M36W432TG, M36W432BG
SUMMARY DESCRIPTION
The M36W432TG is a low voltage Multiple Memo-
ry Product which combines two memory devices;
a 32 Mbit boot block Flash memory and a 4 Mbit
SRAM. Recommended operating conditions do
not allow both the Flash and SRAM devices to be
active at the same time.
The memory is offered in a Stacked LFBGA66
(12x8mm, 8x8 active ball array, 0.8 mm pitch)
package and is supplied with all the bits erased
(set to ‘1’).
Figure 2. Logic Diagram
6/66
A0-A20
WP
UB
RP
E1
E2
LB
W
W
G
G
E
F
F
F
F
F
S
S
S
S
S
S
21
V
DDF
V
M36W432TG
M36W432BG
SSF
V
DDQF
V
PPF
V
V
SSS
DDS
16
DQ0-DQ15
AI07925
Table 1. Signal Names
A0-A17
A18-A20
DQ0-DQ15
V
V
V
V
V
V
NC
Flash control functions
E
G
W
RP
WP
SRAM control functions
E1
G
W
UB
LB
DDF
DDQF
PPF
SSF
DDS
SSS
F
F
S
F
S
S
S
F
S
F
, E2
S
Address Inputs common to the Flash
and SRAM chips
Address Inputs for Flash Chip only
Data Input/Output
Flash Power Supply
Flash Power Supply for I/O Buffers
Flash Optional Supply Voltage for Fast
Program & Erase
Flash Ground
SRAM Power Supply
SRAM Ground
Not Connected Internally
Chip Enable input
Output Enable input
Write Enable input
Reset input
Write Protect input
Chip Enable inputs
Output Enable input
Write Enable input
Upper Byte Enable input
Lower Byte Enable input