PSD834F2-70M STMicroelectronics, PSD834F2-70M Datasheet - Page 19
![IC FLASH 2MBIT 70NS 52QFP](/photos/7/25/72513/497-52-pqfp_series_sml.jpg)
PSD834F2-70M
Manufacturer Part Number
PSD834F2-70M
Description
IC FLASH 2MBIT 70NS 52QFP
Manufacturer
STMicroelectronics
Datasheet
1.PSD813F2VA-20JI.pdf
(109 pages)
Specifications of PSD834F2-70M
Format - Memory
FLASH
Memory Type
FLASH
Memory Size
2M (256K x 8)
Speed
70ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
52-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
497-2005
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PSD834F2-70M
Manufacturer:
Samsung
Quantity:
6 000
Company:
Part Number:
PSD834F2-70M
Manufacturer:
STMicroelectronics
Quantity:
10 000
DETAILED OPERATION
As shown in
of six major types of functional blocks:
■
■
■
■
■
■
The functions of each block are described in the
following sections. Many of the blocks perform
multiple functions, and are user configurable.
Table 8. Memory Block Size and Organization
Number
Memory Blocks
PLD Blocks
MCU Bus Interface
I/O Ports
Power Management Unit (PMU)
JTAG Interface
Sector
Total
0
1
2
3
4
5
6
7
Figure 5., page
Sector Size
(Bytes)
Primary Flash Memory
512K
32K
32K
32K
32K
32K
32K
32K
32K
14, the PSD consists
Sector Select
8 Sectors
Signal
FS0
FS1
FS2
FS3
FS4
FS5
FS6
FS7
Doc ID 10552 Rev 3
Sector Size
Secondary Flash Memory
(Bytes)
16K
16K
16K
16K
64K
Memory Blocks
The PSD has the following memory blocks:
–
–
–
The Memory Select signals for these blocks origi-
nate from the Decode PLD (DPLD) and are user-
defined in PSDsoft Express.
Primary Flash memory
Optional Secondary Flash memory
Optional SRAM
Sector Select
CSBOOT0
CSBOOT1
CSBOOT2
CSBOOT3
4 Sectors
Signal
PSD813F2V, PSD854F2V
SRAM Size
(Bytes)
256K
256K
SRAM
SRAM Select
Signal
RS0
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