参数资料
型号: M95080-MB3G/S
厂商: STMICROELECTRONICS
元件分类: PROM
英文描述: 1K X 8 SPI BUS SERIAL EEPROM, DSO8
封装: 2 X 3 MM, ROHS COMPLIANT, MLP-8
文件页数: 7/39页
文件大小: 714K
代理商: M95080-MB3G/S
15/39
M95160, M95080
Status Register are rejected, and are not
accepted for execution). As a consequence,
all the data bytes in the memory area that are
software protected (SPM) by the Block Protect
(BP1, BP0) bits of the Status Register, are
also hardware protected against data
modification.
Regardless of the order of the two events, the
Hardware Protected Mode (HPM) can be entered:
by setting the Status Register Write Disable
(SRWD) bit after driving Write Protect (W) Low
or by driving Write Protect (W) Low after
setting the Status Register Write Disable
(SRWD) bit.
The only way to exit the Hardware Protected Mode
(HPM) once entered is to pull Write Protect (W)
High.
If Write Protect (W) is permanently tied High, the
Hardware Protected Mode (HPM) can never be
activated, and only the Software Protected Mode
(SPM), using the Block Protect (BP1, BP0) bits of
the Status Register, can be used.
Table 7. Address Range Bits
Note: b15 to b11 are Don’t Care on the M95160.
b15 to b10 are Don’t Care on the M95080.
Figure 10. Write Status Register (WRSR) Sequence
Device
M95160
M95080
Address Bits
A10-A0
A9-A0
C
D
AI02282D
S
Q
2
1
3456789 10 11 12 13 14 15
High Impedance
Instruction
Status
Register In
0
765432
0
1
MSB
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