参数资料
型号: PIC18F85J50T-I/PT
厂商: Microchip Technology
文件页数: 43/61页
文件大小: 0K
描述: IC PIC MCU FLASH 16KX16 80TQFP
产品培训模块: Asynchronous Stimulus
PIC18 J Series MCU Overview
标准包装: 1,200
系列: PIC® 18F
核心处理器: PIC
芯体尺寸: 8-位
速度: 48MHz
连通性: EBI/EMI,I²C,SPI,UART/USART,USB
外围设备: 欠压检测/复位,LVD,POR,PWM,WDT
输入/输出数: 65
程序存储器容量: 32KB(16K x 16)
程序存储器类型: 闪存
RAM 容量: 3.8K x 8
电压 - 电源 (Vcc/Vdd): 2 V ~ 3.6 V
数据转换器: A/D 12x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 80-TQFP
包装: 带卷 (TR)
配用: AC162087-ND - HEADER MPLAB ICD2 18F87J50 68/84
MA180021-ND - MODULE PLUG-IN 18F87J50 FS USB
AC164328-ND - MODULE SKT FOR 80TQFP
其它名称: PIC18F85J50T-I/PTTR
Philips Semiconductors
Product data
P87LPC767
Low power, low price, low pin count (20 pin)
microcontroller with 4-kbyte OTP and 8-bit A/D converter
2002 Mar 25
45
SU01635
WATCHDOG
INTERRUPT
S
Q
20-BIT COUNTER
STATE CLOCK
WDTE (UCFG1.7)
BOF (PCON.5)
POF (PCON.4)
WATCHDOG
RESET
CLEAR
8 MSBs
8 TO 1 MUX
WATCHDOG
FEED DETECT
WDOVF
(WDCON.5)
WDS2–0
(WDCON.2–0)
WDTE + WDRUN
WDCLK * WDTE
500 kHz
RC OSCILLATOR
ENABLE
CLOCK OUT
R
Figure 35. Block Diagram of the Watchdog Timer
BIT
SYMBOL
FUNCTION
WDCON.7, 6
Reserved for future use. Should not be set to 1 by user programs.
WDCON.5
WDOVF
Watchdog timer overflow flag. Set when a watchdog reset or timer overflow occurs. Cleared when
the watchdog is fed.
WDCON.4
WDRUN
Watchdog run control. The watchdog timer is started when WDRUN = 1 and stopped when
WDRUN = 0. This bit is forced to 1 (watchdog running) if the WDTE configuration bit = 1.
WDCON.3
WDCLK
Watchdog clock select. The watchdog timer is clocked by CPU clock/6 when WDCLK = 1 and by
the watchdog RC oscillator when WDCLK = 0. This bit is forced to 0 (using the watchdog RC
oscillator) if the WDTE configuration bit = 1.
WDCON.2–0 WDS2–0
Watchdog rate select.
WDS2–0
Timeout Clocks
Minimum Time
Nominal Time
Maximum Time
0 0 0
8,192
10 ms
16 ms
23 ms
0 0 1
16,384
20 ms
32 ms
45 ms
0 1 0
32,768
41 ms
65 ms
90 ms
0 1 1
65,536
82 ms
131 ms
180 ms
1 0 0
131,072
165 ms
262 ms
360 ms
1 0 1
262,144
330 ms
524 ms
719 ms
1 1 0
524,288
660 ms
1.05 sec
1.44 sec
1 1 1
1,048,576
1.3 sec
2.1 sec
2.9 sec
WDS0
SU01183
WDS1
WDS2
WDCLK
WDRUN
WDOVF
0
1
2
3
4
5
6
7
WDCON
Reset Value:
S 30h for a watchdog reset.
S 10h for other rest sources if the watchdog is enabled via the WDTE configuration bit.
S 00h for other reset sources if the watchdog is disabled via the WDTE configuration bit.
Not Bit Addressable
Address: A7h
Figure 36. Watchdog Timer Control Register (WDCON)
相关PDF资料
PDF描述
PIC18F45J10-I/P IC PIC MCU FLASH 16KX16 40DIP
PIC24FJ16GA002-I/SO IC PIC MCU FLASH 16K 28-SOIC
PIC18F25K22-I/SO MCU 8BIT 32KB FLASH 5.5V 28SOIC
PIC18F26K20-I/SS IC PIC MCU FLASH 32KX16 28-SSOP
PIC24F08KA102-I/ML IC PIC MCU FLASH 8K 28-QFN
相关代理商/技术参数
参数描述
PIC18F85J90-I/PT 功能描述:8位微控制器 -MCU 32KB Flash 2048BRAM 67I/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
PIC18F85J90T-I/PT 功能描述:8位微控制器 -MCU 32KB Flash 2048bytes-RAM 67I/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
PIC18F85J94-I/PT 制造商:Microchip Technology Inc 功能描述:80 PINS, 32KB FLASH, 4KB RAM, 16MIPS, NANOWATT XLP, LCD, USB - Trays
PIC18F85J94T-I/PT 制造商:Microchip Technology Inc 功能描述:80 PINS, 32KB FLASH, 4KB RAM, 16MIPS, NANOWATT XLP, LCD, USB - Tape and Reel 制造商:Microchip Technology Inc 功能描述:IC MCU 8BIT 32KB FLASH 80TQFP 制造商:Microchip Technology Inc 功能描述:8-bit Microcontrollers - MCU 80 pins, 32KB Flash, 4KB RAM, 16MIPS 制造商:Microchip Technology Inc 功能描述:80 pins, 32KB Flash, 4KB RAM, 16MIPS, nanoWatt XLP, LCD, USB, 80 TQFP 12x12x1mm
PIC18F85K22-E/PT 功能描述:8位微控制器 -MCU 32KB Flash 2KB RAM 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