m36w0r5020b0 STMicroelectronics, m36w0r5020b0 Datasheet - Page 8

• Manufacturer Part Number: m36w0r5020b0
• Description: 32 Mbit 2mb X16, Multiple Bank, Burst Flash Memory And 4 Mbit Sram, 1.8v Supply Multi-chip Package
• Manufacturer: STMicroelectronics

M36W0R5020T0, M36W0R5020B0
FUNCTIONAL DESCRIPTION
The Flash memory and SRAM components have
separate power supplies but share the same
grounds. They are distinguished by three Chip En-
able inputs: E
E2
Recommended operating conditions do not allow
more than one device to be active at a time. The
Figure 4. Functional Block Diagram
8/26
A18-A20
S
A0-A17
for the SRAM.
F
for the Flash memory and E1
WP
W
E1
G
W
E2
UB
LB
RP
L
G
K
S
E
F
S
F
S
S
S
F
F
F
S
F
F
V
V
DDF
DDS
S
and
Memory
32 Mbit
SRAM
V
Flash
4Mbit
V
PPF
SS
V
most common example is simultaneous read oper-
ations on the Flash memory and SRAM compo-
nents which would result in a data bus contention.
Therefore it is recommended to put the other de-
vices in the high impedance state when reading
the selected device.
DDQ
WAIT
F
DQ0-DQ15
AI08756b