參數(shù)資料
型號: M37753FFCFP
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE CHIP 16 BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
中文描述: 單片微機16位CMOS閃存版
文件頁數(shù): 20/67頁
文件大小: 525K
代理商: M37753FFCFP
20
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
MITSUBISHI MICROCOMPUTERS
M37753FFCFP
M37753FFCHP
SHINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
Erase command
The erase command is executed by inputting command code 20
16
in the first cycle and command code 20
16
again in the second cycle.
The command code is latched into the internal command latch at the
rising edges of the WE input in the first cycle and in the second cycle,
___
tively erased within 9.5 ms as measured by the internal timer. Note
that data 00
16
must be written to all memory locations before execut-
ing the erase command.
Note:
An erase operation is not completed by executing the erase
command once. Always be sure to execute an erase verify
command after executing the erase command. When the fail-
ure is found in this verification, the user must repeatedly ex-
ecute the erase command until the pass. Refer to Figure 12
for the erase flowchart.
Fig. 11 Input/output timings during erasing (Verify data is output at the same timing as for read.)
Erase verify command
The user must verify the contents of all addresses after completing
the erase command. The microcomputer enters the erase verify
mode by inputting the verify address and command code A0
16
in the
___
edge of the WE input. When control signals are input in the second
cycle at the timing shown in Figure 11, the M37753FFCFP and the
M37753FFCHP output the contents of the specified address to the
external.
Note:
If any memory location where the contents have not been
erased is found in the erase verify operation, execute the op-
eration of “erase
erase verify” over again. In this case,
however, the user does not need to write data 00
16
to memory
locations before erasing.
Address
Erase
Erase verify
Verify
address
t
WC
t
CS
t
RRW
t
WP
t
WPH
t
WP
t
DE
t
DS
20
16
20
16
A0
16
Dout
t
DS
t
DH
t
DH
Verify data output
t
DH
t
VSC
t
DS
t
WP
t
WRR
t
CS
t
CS
t
CH
t
CH
t
CH
t
AS
t
AH
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
PP
H
V
PP
L
CE
OE
WE
Data
V
PP
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參數(shù)描述
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