PSD4235G2V-12UI STMicroelectronics, PSD4235G2V-12UI Datasheet - Page 53

• Manufacturer Part Number: PSD4235G2V-12UI
• Description: IC FLASH 4MBIT 120NS 80TQFP
• Manufacturer: STMicroelectronics

Specifications of PSD4235G2V-12UI

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 4M (512K x 8)
• Speed: 120ns
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP, 80-VQFP
• Number Of Macrocells: 24
• Maximum Operating Frequency: 25.6 MHz
• Delay Time: 90 ns
• Operating Supply Voltage: 3 V to 3.6 V
• Maximum Operating Temperature: 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-1970

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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