參數(shù)資料
型號: PIC16C622T-20I/SO
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 20 MHz, RISC MICROCONTROLLER, PDSO18
封裝: 0.300 INCH, PLASTIC, MS-013, SO-18
文件頁數(shù): 34/128頁
文件大?。?/td> 3677K
代理商: PIC16C622T-20I/SO
2003 Microchip Technology Inc.
DS30235J-page 11
PIC16C62X
TABLE 3-1:
PIC16C62X PINOUT DESCRIPTION
Name
DIP/SOIC
Pin #
SSOP
Pin #
I/O/P Type
Buffer
Type
Description
OSC1/CLKIN
16
18
I
ST/CMOS
Oscillator crystal input/external clock source input.
OSC2/CLKOUT
15
17
O
Oscillator crystal output. Connects to crystal or resonator
in Crystal Oscillator mode. In RC mode, OSC2 pin out-
puts CLKOUT, which has 1/4 the frequency of OSC1
and denotes the instruction cycle rate.
MCLR/V
PP
4
I/P
ST
Master Clear (Reset) input/programming voltage input.
This pin is an Active Low Reset to the device.
PORTA is a bi-directional I/O port.
RA0/AN0
17
19
I/O
ST
Analog comparator input
RA1/AN1
18
20
I/O
ST
Analog comparator input
RA2/AN2/V
REF
1
I/O
ST
Analog comparator input or V
REF output
RA3/AN3
2
I/O
ST
Analog comparator input /output
RA4/T0CKI
3
I/O
ST
Can be selected to be the clock input to the Timer0
timer/counter or a comparator output. Output is
open drain type.
PORTB is a bi-directional I/O port. PORTB can be
software programmed for internal weak pull-up on all
inputs.
RB0/INT
6
7
I/O
TTL/ST(1)
RB0/INT can also be selected as an external
interrupt pin.
RB1
7
8
I/O
TTL
RB2
8
9
I/O
TTL
RB3
9
10
I/O
TTL
RB4
10
11
I/O
TTL
Interrupt-on-change pin.
RB5
11
12
I/O
TTL
Interrupt-on-change pin.
RB6
12
13
I/O
TTL/ST(2)
Interrupt-on-change pin. Serial programming clock.
RB7
13
14
I/O
TTL/ST(2)
Interrupt-on-change pin. Serial programming data.
V
SS
5
5,6
P
Ground reference for logic and I/O pins.
V
DD
14
15,16
P
Positive supply for logic and I/O pins.
Legend:
O = output
I/O = input/output
P = power
— = Not used
I = Input
ST = Schmitt Trigger input
TTL = TTL 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.
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