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参数资料
型号： PIC16C77-04/P
厂商： Microchip Technology
文件页数： 53/114页
文件大小： 0K
描述： IC MCU OTP 8KX14 A/D PWM 40DIP
产品培训模块： Asynchronous Stimulus
8-bit PIC® Microcontroller Portfolio
标准包装： 10
系列： PIC® 16C
核心处理器： PIC
芯体尺寸： 8-位
速度： 4MHz
连通性： I²C，SPI，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： 14KB（8K x 14）
程序存储器类型： OTP
RAM 容量： 368 x 8
电压 - 电源 (Vcc/Vdd)： 4 V ~ 6 V
数据转换器： A/D 8x8b
振荡器型： 外部
工作温度： 0°C ~ 70°C
封装/外壳： 40-DIP（0.600"，15.24mm）
包装： 管件
配用： 444-1001-ND - DEMO BOARD FOR PICMICRO MCU
1997 Microchip Technology Inc.
DS30390E-page 43
PIC16C7X
5.0
I/O PORTS
Some pins for these I/O ports are multiplexed with an
alternate function for the peripheral features on the
device. In general, when a peripheral is enabled, that
pin may not be used as a general purpose I/O pin.
5.1
PORTA and TRISA Registers
PORTA is a 6-bit latch.
The RA4/T0CKI pin is a Schmitt Trigger input and an
open drain output. All other RA port pins have TTL input
levels and full CMOS output drivers. All pins have data
direction bits (TRIS registers) which can congure
these pins as output or input.
Setting a TRISA register bit puts the corresponding out-
put driver in a hi-impedance mode. Clearing a bit in the
TRISA register puts the contents of the output latch on
the selected pin(s).
Reading the PORTA register reads the status of the
pins whereas writing to it will write to the port latch. All
write operations are read-modify-write operations.
Therefore a write to a port implies that the port pins are
read, this value is modied, and then written to the port
data latch.
Pin RA4 is multiplexed with the Timer0 module clock
input to become the RA4/T0CKI pin.
Other PORTA pins are multiplexed with analog inputs
and analog VREF input. The operation of each pin is
selected by clearing/setting the control bits in the
ADCON1 register (A/D Control Register1).
The TRISA register controls the direction of the RA
pins, even when they are being used as analog inputs.
The user must ensure the bits in the TRISA register are
maintained set when using them as analog inputs.
EXAMPLE 5-1:
INITIALIZING PORTA
BCF
STATUS, RP0
;
BCF
STATUS, RP1
; PIC16C76/77 only
CLRF
PORTA
; Initialize PORTA by
; clearing output
; data latches
BSF
STATUS, RP0
; Select Bank 1
MOVLW
0xCF
; Value used to
; initialize data
; direction
MOVWF
TRISA
; Set RA<3:0> as inputs
; RA<5:4> as outputs
; TRISA<7:6> are always
; read as '0'.
Applicable Devices
72 73 73A 74 74A 76 77
Applicable Devices
72 73 73A 74 74A 76 77
Note:
On a Power-on Reset, these pins are con-
gured as analog inputs and read as '0'.
FIGURE 5-1:
BLOCK DIAGRAM OF
RA3:RA0 AND RA5 PINS
FIGURE 5-2:
BLOCK DIAGRAM OF RA4/
T0CKI PIN
Data
bus
Q
D
Q
CK
Q
D
Q
CK
QD
EN
P
N
WR
Port
WR
TRIS
Data Latch
TRIS Latch
RD TRIS
RD PORT
VSS
VDD
I/O pin(1)
Note 1:
I/O pins have protection diodes to VDD and
VSS.
Analog
input
mode
TTL
input
buffer
To A/D Converter
Data
bus
WR
PORT
WR
TRIS
RD PORT
Data Latch
TRIS Latch
RD TRIS
Schmitt
Trigger
input
buffer
N
VSS
I/O pin(1)
TMR0 clock input
Note 1: I/O pin has protection diodes to VSS only.
Q
D
Q
CK
Q
D
Q
CK
EN
QD
EN
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PIC16C770-E/P 功能描述:8位微控制器 -MCU 3.5KB 256 RAM 16 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
PIC16C770-E/SO 功能描述:8位微控制器 -MCU 3.5KB 256 RAM 16 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
PIC16C770-E/SS 功能描述:8位微控制器 -MCU 3.5KB 256 RAM 16 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
PIC16C770-I/P 功能描述:8位微控制器 -MCU 3.5KB 256 RAM 16 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
PIC16C770-I/P 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU 16C770 DIP20
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