PSD834F2V-15J STMicroelectronics, PSD834F2V-15J Datasheet - Page 31

• Manufacturer Part Number: PSD834F2V-15J
• Description: IC FLASH 2MBIT 150NS 52PLCC
• Manufacturer: STMicroelectronics

Specifications of PSD834F2V-15J

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 2M (256K x 8)
• Speed: 150ns
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 52-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2010-5

Figure 10. 8031 Memory Modules – Separate Space
Figure 11. 8031 Memory Modules – Combined Space
Table 13. VM Register
0 = disable
PIO mode
PIO mode
1= enable
PIO_EN
Bit 7
RD
PSEN
VM REG BIT 3
VM REG BIT 4
VM REG BIT 1
VM REG BIT 2
VM REG BIT 0
Bit 6
used
used
not
not
DPLD
Bit 5
used
used
not
not
RD
RS0
CSBOOT0-3
FS0-FS7
PSEN
DPLD
Flash memory
access Flash
can’t access
FL_Data
Primary
memory
0 = RD
1 = RD
Bit 4
RS0
CSBOOT0-3
FS0-FS7
Doc ID 10552 Rev 3
CS
Secondary Flash
Secondary Flash
Primary
Memory
1 = RD access
Flash
OE
0 = RD can’t
Secondary
EE_Data
memory
memory
access
Bit 3
CS
Memory
Primary
Flash
OE
Secondary
CS
can’t access
Memory
0 = PSEN
1 = PSEN
FL_Code
Flash
Primary
memory
memory
OE
access
Flash
Flash
Bit 2
RD
Secondary
CS
Memory
Flash
1 = PSEN access
OE
Secondary Flash
Secondary Flash
PSD813F2V, PSD854F2V
0 = PSEN can’t
Secondary
EE_Code
CS
memory
memory
access
SRAM
Bit 1
OE
CS
SRAM
OE
SRAM_Code
can’t access
AI02870C
0 = PSEN
1 = PSEN
AI02869C
access
SRAM
SRAM
Bit 0
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