M36L0R7040B0 STMICROELECTRONICS [STMicroelectronics], M36L0R7040B0 Datasheet - Page 8

• Manufacturer Part Number: M36L0R7040B0
• Description: 128 Mbit (Multiple Bank, Multi-Level, Burst) Flash Memory and 16 Mbit PSRAM, 1.8V Supply, Multi-Chip Package
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M36L0R7040T0, M36L0R7040B0
FUNCTIONAL DESCRIPTION
The PSRAM and Flash memory 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
8/18
A20-A22
P
A0-A19
for the PSRAM.
F
for the Flash memory and E1
WP
E1
G
W
E2
UB
LB
RP
W
G
P
E
K
L
P
P
P
P
P
F
F
F
F
F
F
F
P
and
V
DDF
V
DDP
128 Mbit
Memory
PSRAM
16 Mbit
Flash
V
V
most common example is simultaneous read oper-
ations in the Flash memory and the PSRAM which
would result in a data bus contention. Therefore it
is recommended to put the other device in the high
impedance state when reading the selected de-
vice.
PPF
SS
V
DDQ
DQ0-DQ15
WAIT
F
AI08468