參數(shù)資料
型號(hào): M38254M4-214FP
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): 17/70頁
文件大?。?/td> 607K
代理商: M38254M4-214FP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
3825 Group
17
Fig. 13 Port block diagram (2)
(9) Ports P5
5
, P5
7
Data bus
Pull-up control
CNTR
1
interrupt input
A-D trigger interrupt input
register
Port latch
(10) Port P6
Data bus
Pull-up control
register
Port latch
A-D conversion input
Analog input pin selection bit
(13) Port P8
0
Data bus
Port selection/Pull-up control
Port X
C
switch bit
register
Oscillation circuit
Port P8
1
Port X
C
switch bit
Port latch
(15) COM
0
–COM
3
V
L3
V
L2
V
L1
The gate input signal of each
transistor is controlled by the
LCD duty ratio and the bias
value.
V
SS
(16) SEG
0
–SEG
17
The voltage applied to the sources of
P-channel and N-channel transistors
is the controlled voltage by the bias
value.
V
L2
/V
L3
V
L1
/V
SS
(8) Ports P5
4
, P5
6
Pulse output mode
Timer output
CNTR
0
interrupt input
Pull-up control
register
Port latch
Data bus
P5
4
only
(11) Port P7
0
Data bus
(12) Ports P7
1
–P7
7
Data bus
register
Port latch
Port selection/Pull-up control
(14) Port P8
1
Data bus
Port selection/Pull-up control
Port X
C
switch bit
register
Sub-clock generating circuit input
Port latch
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