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参数资料
| 型号： | M38073E4FS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, UVPROM, 4 MHz, MICROCONTROLLER, CQCC80 |
| 封装： | 0.80 MM PITCH, CERAMIC, LCC-80 |
| 文件页数： | 56/77页 |
| 文件大小： | 1126K |
| 代理商： | M38073E4FS |
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3
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
3807 Group
PIN DESCRIPTION
Pin
Name
Function
VCC, VSS
Power source
Apply voltage of 2.7–5.5 V to VCC
, and 0 V to VSS.
CMPVCC
Analog comparator Power source input pin for an analog comparator
power source
CNVSS
This pin controls the operation mode of the chip.
Normally connected to VSS.
If this pin is connected to VCC, the internal ROM is inhibited and external memory is accessed.
ADVREF
Analog reference
Reference voltage input pin for A-D converter.
voltage
AVSS
Analog power
Analog power source input pin for A-D and D-A converter and an analog comparator
source
Connect to VSS.
CMPOUT
Analog comparator Output pin for an analog comparator
output
______
RESET
Reset input
Reset input pin for active “L”
XIN
Clock input
Input and output signals for the internal clock generating circuit.
Connect a ceramic resonator or quartz-crystal oscillator between the XIN and XOUT pins to set the oscillation frequency.
XOUT
Clock output
If an external clock is used, connect the clock source to the XIN pin and leave the XOUT pin open.
The clock is used as the oscillating source of system clock.
P00–P07
I/O port P0
8-bit CMOS I/O port
P10–P17
I/O port P1
I/O direction register allows each pin to be individually programmed as either input or output.
P20–P27
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.
P30/RTP6,
I/O port P3
8-bit CMOS I/O port
Real time port function
P31/RTP7
I/O direction register allows each pin to be individually programmed as either input or output.
pins
P34/CKOUT,
At reset this port is set to input mode.
Clock output function pin
P32, P33,
In modes other than single-chip, these pins are used as control bus I/O pins.
P35–P37
CMOS compatible input level
CMOS 3-state output structure
Port P32 can be switched CMOS or TTL input level.
P40/XCOUT,
I/O port P4
8-bit CMOS I/O port with the same function as port P0
Sub-clock generating I/O
P41/XCIN
CMOS compatible input level
pins(connect a resonator)
P42/INT0,
CMOS 3-state output structures
Interrupt input pins
P43/INT1
Timer X, Timer Y function pins
(INT0, INT1)
P44/RXD,
Serial I/O1 function pins
P45/TXD,
P46/SCLK1,
P47/SRDY1
P50/TOUT
I/O port P5
8-bit CMOS I/O port with the same function as port P0
Timer 2 output pin
P51/SCMP2/
CMOS compatible input level
Interrupt input pin
INT2
CMOS 3-state output structure
Serial I/O2 function pin
P52/INT3,
Interrupt input pin
P53/INT4
Real time port function pin(INT4)
P54/CNTR0,
Timer X, Timer Y function pins
P55/CNTR1
P56/DA1,
D-A conversion output
P57/DA2
pins
Function except a port function
Table. 1. Pin description (1)
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