參數(shù)資料
型號(hào)： M27W032-100M1T
廠商： 意法半導(dǎo)體
英文描述： 32 Mbit 2Mb x16 3V Supply FlexibleROM⑩ Memory
中文描述： 32兆位的2Mb x16 3V電源FlexibleROM⑩記憶
文件頁(yè)數(shù)： 12/23頁(yè)
文件大?。?/td> 365K
代理商： M27W032-100M1T
M27W032
12/23
STATUS REGISTER
Bus Read operations from any address always
read the Status Register during Program opera-
tions. The bits in the Status Register are summa-
rized in Table 6, Status Register Bits.
Data Polling Bit (DQ7).
The Data Polling Bit can
be used to identify whether the Program Controller
has successfully completed its operation. The
Data Polling Bit is output on DQ7 when the Status
Register is read.
During a Word Program operation the Data Polling
Bit outputs the complement of the bit being pro-
grammed to DQ7. After successful completion of
the Word Program operation the memory returns
to Read mode and Bus Read operations from the
address just programmed output DQ7, not its com-
plement.
Figure 6, Data Polling Flowchart, gives an exam-
ple of how to use the Data Polling Bit. A Valid Ad-
dress is the address being programmed.
Toggle Bit (DQ6).
The Toggle Bit can be used to
identify whether the Program Controller has suc-
cessfully completed its operation. The Toggle Bit
is output on DQ6 when the Status Register is read.
During Program operations the Toggle Bit chang-
es from ’0’ to ’1’ to ’0’, etc., with successive Bus
Read operations at any address. After successful
completion of the operation the memory returns to
Read mode.
Figure 7, Data Toggle Flowchart, gives an exam-
ple of how to use the Data Toggle Bit.
Error Bit (DQ5).
The Error Bit can be used to
identify errors detected by the Program Controller.
The Error Bit is set to ’1’ when a Program opera-
tion fails to write the correct data to the memory. If
the Error Bit is set a Read/Reset command must
be issued before other commands are issued. The
Error bit is output on DQ5 when the Status Regis-
ter is read.
Note that the Program command cannot change a
bit set to ’0’ back to ’1’ and attempting to do so will
set DQ5 to ‘1’. A Bus Read operation to that ad-
dress will show the bit is still ‘0’.
V
PP
Status Bit (DQ4).
The V
PP
Status Bit can be
used to identify if any Program operation has failed
due to a V
PP
error. If V
PP
falls below V
HH
during
any Program operation, the operation aborts and
DQ4 is set to ‘1’. If V
PP
remains at V
HH
throughout
the Program operation, the operation completes
and DQ4 is set to ‘0’.
Multiple Word Program Bit (DQ0).
The Multiple
Word Program Bit can be used to indicate whether
the Program Controller is active or inactive during
Multiple Word Program. When the Program Con-
troller has written one Word and is ready to accept
the next Word, the bit is set to ‘0’.
Status Register Bit DQ1 is reserved.
相關(guān)PDF資料
PDF描述
M27W064 64 Mbit 4Mb x16 3V Supply FlexibleROM⑩ Memory
M27W064-110N1T Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; No. of Contacts:8; Connector Shell Size:12; Connecting Termination:Solder; Circular Shell Style:Straight Plug
M27W064-110M1T Circular Connector; Body Material:Aluminum; Series:PT06; No. of Contacts:4; Connector Shell Size:12; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Circular Contact Gender:Socket; Insert Arrangement:12-4
M27W064-100N1T Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; Number of Contacts:3; Connector Shell Size:12; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight
M27W064-100M1T Circular Connector; Body Material:Aluminum; Series:PT06; Number of Contacts:3; Connector Shell Size:12; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Circular Contact Gender:Pin; Insert Arrangement:12-3
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M27W032-100N1T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:32 Mbit 2Mb x16 3V Supply FlexibleROM⑩ Memory
M27W032-110M1T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:32 Mbit 2Mb x16 3V Supply FlexibleROM⑩ Memory
M27W032-110N1T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:32 Mbit 2Mb x16 3V Supply FlexibleROM⑩ Memory
M27W064 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:64 Mbit 4Mb x16 3V Supply FlexibleROM⑩ Memory
M27W064-100M1T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:64 Mbit 4Mb x16 3V Supply FlexibleROM⑩ Memory
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