M34282E2GP MITSUBISHI [Mitsubishi Electric Semiconductor], M34282E2GP Datasheet - Page 63

• Manufacturer Part Number: M34282E2GP
• Description: SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

(4) Program
(5) Program verify
Fig. 30 Timing at programming
Fig. 31 Timing at program verifying
Note: When outputting the verify data, the SDA pin is switched for output at the first falling of the serial clock. The SDA pin is
Input command code 25
input the low-order 8 bits and high-order 8 bits of the address
and the low-order 8 bits and high-order 8 bits of program data,
Input command code 35
input the low-order 8 bits and high-order 8 bits of the address
and the low-order 8 bits and high-order 8 bits of program data,
and pull the PGM pin to “L.” When this is done, the program
data is programmed to the specified address. Then, when the
PGM pin is pulled to “L” again after it is released back to “H,”
the address programmed with the program command is read
SCLK
SDA
PGM
SCLK
SDA
PGM
SCLK
SDA
PGM
placed in the high-impedance state during the th
Command code input (35
t
CR
Commanf code input (25
1 0 1 0 0 1 0 0
1 0 1 0 1 1 0 0
t
WR
16
16
t
RC
in the first transfer. Proceed and
in the first transfer. Proceed and
D0
16
Verify data output (L)
)
t
CH
t
CH
16
Program address input (L) Program address input (H)
) P rogram address input (L) Program address input (H)
A0
A0
D7
Verify
t
CH
A7
A7
D8
Verify data output (H)
t
CH
t
0 0 0 0 0 0 0
CH
A8A9
A8 A9
(C–E)
MITSUBISHI
ELECTRIC
A10
A10
0 0 0 0 0
period after the last rising edge of the serial clock (at the 16th bit).
0 0 0 0 0
and pull the PGM pin to “L.” When this is done, the program
data is programmed to the specified address.
and verified and stored into the internal data latch. When the
PGM pin is released back to “H” and serial clock is input to the
SCLK pin, the verify data that has been stored into the data
latch is serially output from the SDA pin.
t
CH
t
CH
D0
Program data input (L)
D0
Program data input (L)
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
D7
D7
MITSUBISHI MICROCOMPUTERS
t
CH
t
CH
Program data input (H)
D8
Program data input (H)
D8
0 0 0 0 0 0 0
0 0 0 0 0 0 0
4282 Group
t
CP
t
CP
Program
Program
t
t
WP
WP
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