参数资料
型号: BU8272GUW-E2
厂商: Rohm Semiconductor
文件页数: 16/17页
文件大小: 0K
描述: IC EXPANDER GPIO LSI 35-VBGA
标准包装: 2,500
接口: 串行
输入/输出数: 20
中断输出:
频率 - 时钟: 400kHz
电源电压: 1.65 V ~ 1.95 V,1.65 V ~ 3.45 V
工作温度: -25°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 36-VFBGA
供应商设备封装: VBGA035W040
包装: 带卷 (TR)
PIC16F87X
DS30292C-page 6
2001 Microchip Technology Inc.
FIGURE 1-2:
PIC16F874 AND PIC16F877 BLOCK DIAGRAM
FLASH
Program
Memory
13
Data Bus
8
14
Program
Bus
Instruction reg
Program Counter
8 Level Stack
(13-bit)
RAM
File
Registers
Direct Addr
7
RAM Addr(1)
9
Addr MUX
Indirect
Addr
FSR reg
STATUS reg
MUX
ALU
W reg
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
Instruction
Decode &
Control
Timing
Generation
OSC1/CLKIN
OSC2/CLKOUT
MCLR
VDD, VSS
PORTA
PORTB
PORTC
PORTD
PORTE
RA4/T0CKI
RA5/AN4/SS
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
RC7/RX/DT
RE0/AN5/RD
RE1/AN6/WR
RE2/AN7/CS
8
Brown-out
Reset
Note 1: Higher order bits are from the STATUS register.
USART
CCP1,2
Synchronous
10-bit A/D
Timer0
Timer1
Timer2
Serial Port
RA3/AN3/VREF+
RA2/AN2/VREF-
RA1/AN1
RA0/AN0
Parallel Slave Port
8
3
Data EEPROM
RB0/INT
RB1
RB2
RB3/PGM
RB4
RB5
RB6/PGC
RB7/PGD
Device
Program
FLASH
Data Memory
Data
EEPROM
PIC16F874
4K
192 Bytes
128 Bytes
PIC16F877
8K
368 Bytes
256 Bytes
In-Circuit
Debugger
Low-Voltage
Programming
RD0/PSP0
RD1/PSP1
RD2/PSP2
RD3/PSP3
RD4/PSP4
RD5/PSP5
RD6/PSP6
RD7/PSP7
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