M36W432T Datasheet, PDF (5/57 Pages) STMicroelectronics – 32 Mbit 2Mb x16, Boot Block Flash Memory and 4 Mbit 256K x16 SRAM, Multiple Memory Product

M36W432T, M36W432B
SUMMARY DESCRIPTION
The M36W432 is a low voltage Multiple Memory
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 the SRAM to be ac-
tive at the same time.
The memory is offered in a Stacked LFBGA66 (0.8
mm pitch) package and is supplied with all the bits
erased (set to ‘1’).
Figure 2. Logic Diagram
VDDQF VDDS
VDDF VPPF
21
A0-A20
16
DQ0-DQ15
EF
GF
WF
RPF
WPF
E1S
E2S
GS
WS
UBS
LBS
M36W432T
M36W432B
Table 1. Signal Names
A0-A17
Address Inputs
A18-A20
Address Inputs for Flash Chip only
DQ0-DQ15 Data Input/Output
V_DDF
Flash Power Supply
V_DDQF
Flash Power Supply for I/O Buffers
V_PPF
Flash Optional Supply Voltage for Fast
Program & Erase
V_SSF
Flash Ground
V_DDS
SRAM Power Supply
V_SSS
SRAM Ground
NC
Not Connected Internally
Flash control functions
EF
Chip Enable input
GF
Output Enable input
WF
Write Enable input
RPF
Reset input
WPF
Write Protect input
SRAM control functions
E1S, E2S
Chip Enable inputs
GS
Output Enable input
WS
Write Enable input
UBS
Upper Byte Enable input
LBS
Lower Byte Enable input
VSSF VSSS
AI05200
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