PSD834F2-15M STMicroelectronics, PSD834F2-15M Datasheet - Page 25
PSD834F2-15M
Manufacturer Part Number
PSD834F2-15M
Description
Manufacturer
STMicroelectronics
Datasheet
1.PSD834F2-15M.pdf
(95 pages)
Specifications of PSD834F2-15M
Operating Temperature (max)
70C
Operating Temperature (min)
0C
Operating Temperature Classification
Commercial
Package Type
PQFP
Mounting
Surface Mount
Pin Count
52
Lead Free Status / RoHS Status
Compliant
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Combined Space Modes. The
Data spaces are combined into one memory
space that allows the primary Flash memory, sec-
ondary Flash memory, and SRAM to be accessed
by either Program Select Enable (PSEN, CNTL2)
Figure 8. 8031 Memory Modules – Combined Space
RD
PSEN
VM REG BIT 3
VM REG BIT 4
VM REG BIT 1
VM REG BIT 2
VM REG BIT 0
DPLD
Program
RS0
CSBOOT0-3
FS0-FS7
and
or Read Strobe (RD, CNTL1). For example, to
configure the primary Flash memory in Combined
space, Bits b2 and b4 of the VM register are set to
1 (see Figure 8).
CS
Primary
Memory
Flash
OE
RD
Secondary
CS
Memory
Flash
OE
CS
PSD834F2V
SRAM
OE
AI02870C
25/95
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