PIC16C72T-02E 查看數據表（PDF） - Microchip Technology
零件编号
产品描述 (功能)
生产厂家
PIC16C72T-02E Datasheet PDF : 124 Pages
| |||
PIC16C72 Series
TABLE 1-1 PIC16C72/CR72 PINOUT DESCRIPTION
Pin Name
Pin#
I/O/P
Type
Buffer
Type
Description
OSC1/CLKIN
9
I
ST/CMOS(3) Oscillator crystal input/external clock source input.
OSC2/CLKOUT
10
O
—
Oscillator crystal output. Connects to crystal or resonator in crystal
oscillator mode. In RC mode, the OSC2 pin outputs CLKOUT which
has 1/4 the frequency of OSC1, and denotes the instruction cycle rate.
MCLR/VPP
1
I/P
ST
Master clear (reset) input or programming voltage input. This pin is an
active low reset to the device.
PORTA is a bi-directional I/O port.
RA0/AN0
2
I/O
TTL
RA0 can also be analog input0.
RA1/AN1
3
I/O
TTL
RA1 can also be analog input1.
RA2/AN2
4
I/O
TTL
RA2 can also be analog input2.
RA3/AN3/VREF
5
I/O
TTL
RA3 can also be analog input3 or analog reference voltage
RA4/T0CKI
6
I/O
ST
RA4 can also be the clock input to the Timer0 module. Output is
open drain type.
RA5/SS/AN4
7
I/O
TTL
RA5 can also be analog input4 or the slave select for the
synchronous serial port.
RB0/INT
PORTB is a bi-directional I/O port. PORTB can be software
programmed for internal weak pull-up on all inputs.
21
I/O
TTL/ST(1)
RB0 can also be the external interrupt pin.
RB1
22
I/O
TTL
RB2
23
I/O
TTL
RB3
24
I/O
TTL
RB4
25
I/O
TTL
Interrupt on change pin.
RB5
26
I/O
TTL
Interrupt on change pin.
RB6
27
I/O
TTL/ST(2)
Interrupt on change pin. Serial programming clock.
RB7
28
I/O
TTL/ST(2)
Interrupt on change pin. Serial programming data.
PORTC is a bi-directional I/O port.
RC0/T1OSO/T1CKI
11
I/O
ST
RC0 can also be the Timer1 oscillator output or Timer1 clock
input.
RC1/T1OSI
12
I/O
ST
RC1 can also be the Timer1 oscillator input.
RC2/CCP1
13
I/O
ST
RC2 can also be the Capture1 input/Compare1 output/PWM1
output.
RC3/SCK/SCL
14
I/O
ST
RC3 can also be the synchronous serial clock input/output for both
SPI and I2C modes.
RC4/SDI/SDA
15
I/O
ST
RC4 can also be the SPI Data In (SPI mode) or
data I/O (I2C mode).
RC5/SDO
16
I/O
ST
RC5 can also be the SPI Data Out (SPI mode).
RC6
17
I/O
ST
RC7
18
I/O
ST
VSS
8, 19
P
—
Ground reference for logic and I/O pins.
VDD
20
P
—
Positive supply for logic and I/O pins.
Legend: I = input O = output
I/O = input/output
P = power
— = Not used
TTL = TTL input
ST = Schmitt Trigger input
Note 1: This buffer is a Schmitt Trigger input when configured as the external interrupt.
2: This buffer is a Schmitt Trigger input when used in serial programming mode.
3: This buffer is a Schmitt Trigger input when configured in RC oscillator mode and a CMOS input otherwise.
DS39016A-page 4
Preliminary
© 1998 Microchip Technology Inc.
Share Link: 