參數(shù)資料
型號(hào): M37471M8
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 單芯片8位CMOS微機(jī)
文件頁數(shù): 27/46頁
文件大小: 646K
代理商: M37471M8
27
7470/7471 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Multi-
plexer
A-D conversion circuit
Port P3
INT
0
, INT
1
CNTR
0
, CNTR
1
Data bus
Port P3
Pull-up control register
*
Direction register
Port latch
*
: Control in units of 4-bit (Control in units of 2-bit for 7470 group)
Port P4
Port P4
Data bus
Data bus
Pull-up control register
*
Direction register
Port latch
*
: Control in units of 4-bit
Port P2
Port P2
Data bus
Data bus
T
r
10
T
r
11
T
r
10–T
r
11 are pull-up transistors
Fig. 19 Block diagram of ports P2–P4
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