參數(shù)資料
型號(hào): PIC16CR77
廠商: Microchip Technology Inc.
英文描述: 28/40-Pin, 8-Bit CMOS ROM Microcontrollers
中文描述: 28/40-Pin,8位微控制器的CMOS光盤
文件頁數(shù): 10/172頁
文件大?。?/td> 1506K
代理商: PIC16CR77
PIC16CR7X
DS21993C-page 8
2007 Microchip Technology Inc.
TABLE 1-2:
PIC16CR73 AND PIC16CR76 PINOUT DESCRIPTION
Pin Name
PDIP
SSOP
SOIC
Pin#
MLF
Pin#
I/O/P
Type
Buffer
Type
Description
OSC1/CLKIN
OSC1
CLKIN
9
6
I
I
ST/CMOS
(3)
Oscillator crystal or external clock input.
Oscillator crystal input or external clock source input. ST
buffer when configured in RC mode. Otherwise CMOS.
External clock source input. Always associated with pin
function OSC1 (see OSC1/CLKIN, OSC2/CLKOUT pins).
Oscillator crystal or clock output.
Oscillator crystal output.
Connects to crystal or resonator in Crystal Oscillator
mode.
In RC mode, OSC2 pin outputs CLKOUT, which has 1/4
the frequency of OSC1 and denotes the instruction cycle
rate.
OSC2/CLKOUT
OSC2
CLKOUT
10
7
O
O
MCLR
1
26
I
ST
Master Clear (Reset) input. This pin is an active low
Reset to the device.
PORTA is a bidirectional I/O port.
RA0/AN0
RA0
AN0
RA1/AN1
RA1
AN1
RA2/AN2
RA2
AN2
RA3/AN3/V
REF
RA3
AN3
V
REF
RA4/T0CKI
RA4
T0CKI
RA5/AN4/SS
RA5
AN4
SS
2
27
I/O
I
TTL
Digital I/O.
Analog input 0.
3
28
I/O
I
TTL
Digital I/O.
Analog input 1.
4
1
I/O
I
TTL
Digital I/O.
Analog input 2.
5
2
I/O
I
I
TTL
Digital I/O.
Analog input 3.
A/D reference voltage input.
6
3
I/O
I
ST
Digital I/O – Open drain when configured as output.
Timer0 external clock input.
7
4
I/O
I
I
TTL
Digital I/O.
Analog input 4.
SPI slave select input.
PORTB is a bidirectional I/O port. PORTB can be software
programmed for internal weak pull-up on all inputs.
RB0/INT
RB0
INT
RB1
RB2
RB3
RB4
RB5
RB6
RB7
Legend:
21
18
I/O
I
I/O
I/O
I/O
I/O
I/O
I/O
I/O
TTL/ST
(1)
Digital I/O.
External interrupt.
Digital I/O.
Digital I/O.
Digital I/O.
Digital I/O.
Digital I/O.
Digital I/O.
Digital I/O.
P = power
22
23
24
25
26
27
28
19
20
21
22
23
24
25
TTL
TTL
TTL
TTL
TTL
TTL
TTL
I = input
— = Not used
This buffer is a Schmitt Trigger input when configured as the external interrupt.
This buffer is a Schmitt Trigger input when used in Serial Verify mode.
This buffer is a Schmitt Trigger input when configured in RC Oscillator mode and a CMOS input otherwise.
O = output
TTL = TTL input
I/O = input/output
ST = Schmitt Trigger input
Note
1:
2:
3:
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