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參數(shù)資料
| 型號： | M38079MF-178FP |
| 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 |
| 文件頁數(shù)： | 3/74頁 |
| 文件大?。?/td> | 1182K |
| 代理商： | M38079MF-178FP |
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3
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
3807 Group
PIN DESCRIPTION
Pin
Name
Function
V
CC
, V
SS
CMPV
CC
Power source
Analog comparator Power source input pin for an analog comparator
power source
CNV
SS
This pin controls the operation mode of the chip.
Normally connected to V
SS
.
If this pin is connected to V
CC
, the internal ROM is inhibited and external memory is accessed.
Analog reference
Reference voltage input pin for A-D converter.
voltage
Analog power
Analog power source input pin for A-D and D-A converter and an analog comparator
source
Connect to V
SS
.
Analog comparator Output pin for an analog comparator
output
Reset input
Reset input pin for active “L”
Clock input
Input and output signals for the internal clock generating circuit.
Connect a ceramic resonator or quartz-crystal oscillator between the X
IN
and X
OUT
pins to set the oscillation frequency.
Clock output
If an external clock is used, connect the clock source to the X
IN
pin and leave the X
OUT
pin open.
The clock is used as the oscillating source of system clock.
I/O port P0
8-bit CMOS I/O port
I/O port P1
I/O direction register allows each pin to be individually programmed as either input or output.
I/O port P2
At reset this port is set to input mode.
In modes other than single-chip, these pins are used as address, data bus I/O pins.
CMOS compatible input level
CMOS 3-state output structure
Port P2 can be switched CMOS or TTL input level.
I/O port P3
8-bit CMOS I/O port
I/O direction register allows each pin to be individually programmed as either input or output.
At reset this port is set to input mode.
In modes other than single-chip, these pins are used as control bus I/O pins.
CMOS compatible input level
CMOS 3-state output structure
Port P3
2
can be switched CMOS or TTL input level.
I/O port P4
8-bit CMOS I/O port with the same function as port P0
CMOS compatible input level
CMOS 3-state output structures
Apply voltage of 2.7–5.5 V to V
CC
,
and 0 V to V
SS
.
CNV
SS
ADV
REF
AV
SS
CMP
OUT
RESET
X
IN
X
OUT
P0
0
–P0
7
P1
0
–P1
7
P2
0
–P2
7
P3
0
/RTP
6
,
P3
1
/RTP
7
P3
4
/CK
OUT
,
P3
2
, P3
3
,
P3
5
–P3
7
Real time port function
pins
Clock output function pin
P4
0
/X
COUT
,
P4
1
/X
CIN
P4
2
/INT
0
,
P4
3
/INT
1
Sub-clock generating I/O
pins
(connect a resonator)
Interrupt input pins
Timer X, Timer Y function pins
(INT
0
, INT
1
)
Serial I/O1 function pins
P4
4
/R
X
D,
P4
5
/T
X
D,
P4
6
/S
CLK1
,
P4
7
/S
RDY1
P5
0
/T
OUT
P5
1
/S
CMP2
/
INT
2
P5
2
/INT
3
,
P5
3
/INT
4
P5
4
/CNTR
0
,
P5
5
/CNTR
1
P5
6
/DA
1
,
P5
7
/DA
2
I/O port P5
8-bit CMOS I/O port with the same function as port P0
CMOS compatible input level
CMOS 3-state output structure
Timer 2 output pin
Interrupt input pin
Serial I/O2 function pin
Interrupt input pin
Real time port function pin(INT
4
)
Timer X, Timer Y function pins
D-A conversion output
pins
Function except a port function
Table. 1. Pin description (1)
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