PSD4235G2-90U STMicroelectronics, PSD4235G2-90U Datasheet - Page 53
PSD4235G2-90U
Manufacturer Part Number
PSD4235G2-90U
Description
IC FLASH 4MBIT 90NS 80TQFP
Manufacturer
STMicroelectronics
Datasheet
1.PSD4235G2-70U.pdf
(129 pages)
Specifications of PSD4235G2-90U
Format - Memory
FLASH
Memory Type
FLASH
Memory Size
4M (512K x 8)
Speed
90ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
80-TQFP, 80-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-1968
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PSD4235G2-90U
Manufacturer:
MURATA
Quantity:
34 000
Company:
Part Number:
PSD4235G2-90U
Manufacturer:
STMicroelectronics
Quantity:
10 000
Part Number:
PSD4235G2-90U
Manufacturer:
ST
Quantity:
20 000
Company:
Part Number:
PSD4235G2-90UI
Manufacturer:
TI
Quantity:
8 802
Company:
Part Number:
PSD4235G2-90UI
Manufacturer:
STMicroelectronics
Quantity:
10 000
PSD4235G2
13.5
Figure 8.
Figure 9.
RD
PSEN
VM REG BIT 3
VM REG BIT 4
VM REG BIT 1
VM REG BIT 2
VM REG BIT 0
80C51XA memory map example
See the Application notes for examples.
8031 memory modules - separate space
8031 memory modules - combined space
DPLD
RD
RS0
CSBOOT0-3
FS0-FS7
PSEN
DPLD
RS0
CSBOOT0-3
FS0-FS7
CS
Memory
Primary
Flash
OE
CS
Memory
Primary
Flash
OE
Secondary
CS
Memory
Flash
OE
RD
Secondary
CS
Memory
Flash
OE
CS
SRAM
Memory Select signals
OE
CS
SRAM
OE
AI02870C
AI02869C
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