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参数资料
| 型号： | M39208-15WNB1 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | PROM |
| 英文描述： | 256K X 8 FLASH 2.7V PROM, 150 ns, PDSO32 |
| 封装： | 8 X 14 MM, PLASTIC, TSOP-32 |
| 文件页数： | 2/30页 |
| 文件大小： | 218K |
| 代理商： | M39208-15WNB1 |
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Write OTP Row
Writing (only one time) in the OTP row (64 bytes)
is enabled by an instruction. This instruction is
composed of three specific Write operations of data
bytes at three specific memory locations (each
location in a different page) followed by the the data
to store in the OTP row (refer to Table 4).
When accessing the OTP row, the only LSB ad-
dresses (A6 to A0) are decoded, with A6 = ’0’.
Write the EEPROM Block Identifier
The EEPROM block identifier can be written with a
single Write operation with specific logic levels
applied on A6 and the VID level on A9 (see Table
7).
PROGRAM in the Flash BLOCK
It should be noted that writing data into the
EEPROM block and the Flash block is not per-
formed in a similar way: the Flash memory requires
an instruction (see Instruction chapter) for Erasing
and another instruction for Programming one (or
more) byte(s), the EEPROM memory is directly
written with a simple operation (see Operation
chapter).
Program Instuction. During the execution of the
Program instruction, the Flash block memory will
not accept any further instructions.
The Flash block memory can be programmed byte-
by-byte. The program instruction is a sequence of
three specific Write operations followed by writing
the address and data byte to be programmed into
the Flash block memory (see Table 4). The M39208
automatically starts and performs the programming
after the fourth write operation.
During programming, the memory status may be
checked by reading the status bits DQ5, DQ6 and
DQ7, as detailed in the following sections.
READ DQ5 & DQ7
at VALID ADDRESS
START
READ DQ7
FAIL
PASS
AI01369
DQ7
=
DATA
YES
NO
YES
NO
DQ5
= 1
DQ7
=
DATA
YES
NO
Figure 6. Data Polling Flowchart
READ
DQ5 & DQ6
START
READ DQ6
FAIL
PASS
AI01370
DQ6
=
TOGGLE
NO
YES
DQ5
= 1
NO
YES
DQ6
=
TOGGLE
Figure 7. Data Toggle Flowchart
10/30
M39208
相关PDF资料 |
PDF描述 |
|---|---|
| M3933/10-17N | 0 MHz - 18000 MHz RF/MICROWAVE FIXED ATTENUATOR |
| M3933/25-65N | 0 MHz - 18000 MHz RF/MICROWAVE FIXED ATTENUATOR |
| M3933/10-16S | 0 MHz - 18000 MHz RF/MICROWAVE FIXED ATTENUATOR |
| M3933/14-23S | 0 MHz - 12400 MHz RF/MICROWAVE FIXED ATTENUATOR |
| M3933/25-31S | 0 MHz - 18000 MHz RF/MICROWAVE FIXED ATTENUATOR |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M39208-15WNB1T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Single Chip 2 Mbit Flash and 64 Kbit Parallel EEPROM Memory |
| M39208-15WNB5T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Single Chip 2 Mbit Flash and 64 Kbit Parallel EEPROM Memory |
| M39208-15WNB6T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Single Chip 2 Mbit Flash and 64 Kbit Parallel EEPROM Memory |
| M39208NA | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Single Chip 2 Mbit Flash and 64 Kbit Parallel EEPROM Memory |
| M39208NB | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Single Chip 2 Mbit Flash and 64 Kbit Parallel EEPROM Memory |
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