参数资料
型号: PIC16F871T-E/PT
厂商: Microchip Technology
文件页数: 133/143页
文件大小: 0K
描述: IC MCU CMOS 20MHZ 2K FLSH 44TQFP
标准包装: 1,200
系列: PIC® 16F
核心处理器: PIC
芯体尺寸: 8-位
速度: 20MHz
连通性: UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 33
程序存储器容量: 3.5KB(2K x 14)
程序存储器类型: 闪存
EEPROM 大小: 64 x 8
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 4 V ~ 5.5 V
数据转换器: A/D 8x10b
振荡器型: 外部
工作温度: -40°C ~ 125°C
封装/外壳: 44-TQFP
包装: 带卷 (TR)
2003 Microchip Technology Inc.
DS30569B-page 7
PIC16F870/871
TABLE 1-1:
PIC16F870 PINOUT DESCRIPTION
Pin Name
DIP
Pin#
SOIC
Pin#
I/O/P
Type
Buffer
Type
Description
OSC1/CLKI
9
I
ST/CMOS(3) Oscillator crystal input/external clock source input.
OSC2/CLKO
10
O
Oscillator crystal output. Connects to crystal or resonator in
Crystal Oscillator mode. In RC mode, the OSC2 pin outputs
CLKO, which has 1/4 the frequency of OSC1, and denotes the
instruction cycle rate.
MCLR/VPP/THV
1
I/P
ST
Master Clear (Reset) input or programming voltage input or High
Voltage Test mode control. 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 input 0.
RA1/AN1
3
I/O
TTL
RA1 can also be analog input 1.
RA2/AN2/VREF-
4
I/O
TTL
RA2 can also be analog input 2 or negative analog reference
voltage.
RA3/AN3/VREF+
5
I/O
TTL
RA3 can also be analog input 3 or positive analog reference
voltage.
RA4/T0CKI
6
I/O
ST/OD
RA4 can also be the clock input to the Timer0 module. Output
is open drain type.
RA5/AN4
7
I/O
TTL
RA5 can also be analog input 4.
PORTB is a bi-directional I/O port. PORTB can be software
programmed for internal weak pull-up on all inputs.
RB0/INT
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/PGM
24
I/O
TTL/ST(1)
RB3 can also be the low voltage programming input.
RB4
25
I/O
TTL
Interrupt-on-change pin.
RB5
26
I/O
TTL
Interrupt-on-change pin.
RB6/PGC
27
I/O
TTL/ST(2)
Interrupt-on-change pin or In-Circuit Debugger pin. Serial
programming clock.
RB7/PGD
28
I/O
TTL/ST(2)
Interrupt-on-change pin or In-Circuit Debugger 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
14
I/O
ST
RC4
15
I/O
ST
RC5
16
I/O
ST
RC6/TX/CK
17
I/O
ST
RC6 can also be the USART Asynchronous Transmit or
Synchronous Clock.
RC7/RX/DT
18
I/O
ST
RC7 can also be the USART Asynchronous Receive or
Synchronous Data.
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
OD = Open Drain
— = Not used
TTL = TTL input
ST = Schmitt Trigger input
Note
1:
This buffer is a Schmitt Trigger input when configured as the external interrupt or LVP mode.
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.
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PIC16F871T-I/PT 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 33 I/O RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
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