M36DR432BD ST Microelectronics, M36DR432BD Datasheet - Page 6

• Manufacturer Part Number: M36DR432BD
• Description: 32 Mbit 2Mb x16 / Dual Bank / Page Flash Memory and 4 Mbit 256Kb x16 SRAM / Multiple Memory Product
• Manufacturer: ST Microelectronics

M36DR432AD, M36DR432BD
SUMMARY DESCRIPTION
The M36DR432AD/BD is a low-voltage Multiple
Memory Product which combines two memory de-
vices: a 32 Mbit (2Mbit x16) non-volatile Flash
memory and a 4 Mbit SRAM.
The memory is available in a Stacked LFBGA66
12x8mm - 8x8 active ball array, 0.8mm pitch pack-
age and supplied with all the bits erased (set to
‘1’).
Figure 2. Logic Diagram
6/52
A0-A20
WPF
RPF
UBS
E1S
LBS
E2S
WS
WF
GS
GF
EF
21
V DDF
V SSF
M36DR432AD
M36DR432BD
V PPF
V SSS
V DDS
16
DQ0-DQ15
AI07309b
Table 1. Signal Names
A0-A17
A18-A20
DQ0-DQ15
V
V
V
V
V
NC
Flash control functions
EF
GF
WF
RPF
WPF
SRAM control functions
E1S
E2S
GS
WS
UBS
LBS
DDF
PPF
SSF
DDS
SSS
Address Inputs
Address Inputs for Flash Chip only
Data Input/Outputs, Command Inputs
Flash Power Supply
Flash Optional Supply Voltage for Fast
Program & Erase
Flash Ground
SRAM Power Supply
SRAM Ground
Not Connected Internally
Chip Enable
Output Enable
Write Enable
Reset/Power-Down
Write Protect input
Chip Enable
Chip Enable
Output Enable
Write Enable
Upper Byte Enable
Lower Byte Enable