参数资料
型号: PIC16F84A-04I/P
厂商: Microchip Technology
文件页数: 45/81页
文件大小: 0K
描述: IC MCU FLASH 1KX14 EE 18DIP
产品培训模块: Asynchronous Stimulus
8-bit PIC® Microcontroller Portfolio
标准包装: 25
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 ~ 85°C
封装/外壳: 18-DIP(0.300",7.62mm)
包装: 管件
产品目录页面: 638 (CN2011-ZH PDF)
配用: I3-DB16F84A-ND - BOARD DAUGHTER ICEPIC3
DVA16XP180-ND - ADAPTER DEVICE FOR MPLAB-ICE
AC164010-ND - MODULE SKT PROMATEII DIP/SOIC
2001 Microchip Technology Inc.
DS35007B-page 3
PIC16F84A
1.0
DEVICE OVERVIEW
This document contains device specific information for
the operation of the PIC16F84A device. Additional
information may be found in the PICmicro Mid-
Range Reference Manual, (DS33023), which may be
downloaded from the Microchip website. The Refer-
ence Manual should be considered a complementary
document to this data sheet, and is highly recom-
mended reading for a better understanding of the
device architecture and operation of the peripheral
modules.
The PIC16F84A belongs to the mid-range family of the
PICmicro microcontroller devices. A block diagram of
the device is shown in Figure 1-1.
The program memory contains 1K words, which trans-
lates to 1024 instructions, since each 14-bit program
memory word is the same width as each device instruc-
tion. The data memory (RAM) contains 68 bytes. Data
EEPROM is 64 bytes.
There are also 13 I/O pins that are user-configured on
a pin-to-pin basis. Some pins are multiplexed with other
device functions. These functions include:
External interrupt
Change on PORTB interrupt
Timer0 clock input
Table 1-1 details the pinout of the device with descrip-
tions and details for each pin.
FIGURE 1-1:
PIC16F84A BLOCK DIAGRAM
FLASH
Program
Memory
Program Counter
13
Program
Bus
Instruction Register
8 Level Stack
(13-bit)
Direct Addr
8
Instruction
Decode &
Control
Timing
Generation
OSC2/CLKOUT
OSC1/CLKIN
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
MCLR
VDD, VSS
W reg
ALU
MUX
I/O Ports
TMR0
STATUS reg
FSR reg
Indirect
Addr
RA3:RA0
RB7:RB1
RA4/T0CKI
EEADR
EEPROM
Data Memory
64 x 8
EEDATA
Addr Mux
RAM Addr
RAM
File Registers
EEPROM Data Memory
Data Bus
5
7
RB0/INT
14
8
1K x 14
68 x 8
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