参数资料
型号: PIC16F84A-04E/SS
厂商: Microchip Technology
文件页数: 56/81页
文件大小: 0K
描述: IC MCU CMOS 4MHZ 1K FLASH 20SSOP
标准包装: 67
系列: PIC® 16F
核心处理器: PIC
芯体尺寸: 8-位
速度: 4MHz
外围设备: POR,WDT
输入/输出数: 13
程序存储器容量: 1.75KB(1K x 14)
程序存储器类型: 闪存
EEPROM 大小: 64 x 8
RAM 容量: 68 x 8
电压 - 电源 (Vcc/Vdd): 4 V ~ 5.5 V
振荡器型: 外部
工作温度: -40°C ~ 125°C
封装/外壳: 20-SSOP(0.209",5.30mm 宽)
包装: 管件
配用: XLT20SS1-1-ND - SOCKET TRANSITION 20DIP 20SSOP
PIC16F84A
DS35007B-page 4
2001 Microchip Technology Inc.
TABLE 1-1:
PIC16F84A PINOUT DESCRIPTION
Pin Name
PDIP
No.
SOIC
No.
SSOP
No.
I/O/P
Type
Buffer
Type
Description
OSC1/CLKIN
16
18
I
ST/CMOS(3) Oscillator crystal input/external clock source input.
OSC2/CLKOUT
15
19
O
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.
MCLR
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
17
19
I/O
TTL
RA1
18
20
I/O
TTL
RA2
1
I/O
TTL
RA3
2
I/O
TTL
RA4/T0CKI
3
I/O
ST
Can also be selected to be the clock input to the
TMR0 timer/counter. 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.
VSS
5
5,6
P
Ground reference for logic and I/O pins.
VDD
14
15,16
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.
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