参数资料
型号: M34238MK-XXXGP
元件分类: 微控制器/微处理器
英文描述: 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20
封装: PLASTIC, SOP-20
文件页数: 6/41页
文件大小: 243K
代理商: M34238MK-XXXGP
MITSUBISHI MICROCOMPUTERS
4238 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS
13
Fig. 16 Port block diagram
(1) Port D
(2) Port E
(3) Port G
(4) Port CARR
Register Y
Decoder
SD instruction
RD instruction
Q
CLD
instruction
S
R
Q
D
T
R
DQ
T
R
DQ
T
Q
S
R
Ports D0–D7
Port E
Ports G0–G3
Port CARR
SPUE instruction
OEA instruction
A0
A3
OEA instruction
IAG instruction
TAC instruction
TCA instruction
OCRA instruction
OGA instruction
TCA instruction
IAE instruction
IAG instruction
Register C
Carrier wave
select circuit
Register A
Ai
Register A
A3
Register A
Pull-up
transistor
Pull-up
transistor
Key-on wakeup
input
This symbol represents a parasitic diode.
i represents 0, 1, 2 or 3.
Q
S
R
Key-on wakeup input
SKW instruction
RKW instruction
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