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4250 Datasheet(PDF) 10 Page - Renesas Technology Corp

Part # 4250
Description  SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

4250 Datasheet(HTML) 10 Page - Renesas Technology Corp

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9
MITSUBISHI MICROCOMPUTERS
4250 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
PORT BLOCK DIAGRAMS
D
T
Q
Register A
Aj
F0, F1
OFA
instruction
IAF instruction
Register A
Ai
OSA instruction
Key-on wakeup
input
D
T
Q
S0–S3
K00
IAS instruction
Ai
LGOP instruction
LO Register
S
RQ
Skip decision
(SZD instruction)
D0, D1
Decoder
Register Y
SD instruction
RD instruction
SCP instruction
RCP instruction
S
RQ
S
RQ
Skip decision
(SZD instruction)
D2/C
Skip decision
(SNZCP instruction)
PU01
Pull-up transistor
Decoder
Register Y
SD instruction
RD instruction
(Note 1)
(Note 1)
(Note 1)
(Note 3)
(Note 2)
(Note 2)
(Note 1)
D3/K
D
T
Q
S
RQ
Skip decision
(SZD instruction)
A0
OKA instruction
IAK instruction
Pull-up transistor
PU01
Register A
Decoder
Register Y
SD instruction
RD instruction
(Note 1)
This symbol represents
a parasitic diode.
Applied potential to ports D0, D1, F0, F1, S0–S3
must be 7V or less.
Applied potential to ports D2, D3 must be VDD or
less.
i represents 0, 1, 2 or 3.
j represents 0 or 1.
CLD
instruction
CLD
instruction
CLD
instruction
Logic
operator
Notes 1:
2:
3:


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