參數(shù)資料
型號: PIC16C642
廠商: Microchip Technology Inc.
英文描述: 8-Bit EPROM Microcontrollers with Analog Comparators(每個I/O口有25mA驅(qū)動/吸收電流,可編程Vref,微控制器)
中文描述: 8位EPROM微控制器與模擬比較器(每個的I / O口有25毫安驅(qū)動/吸收電流,可編程Vref的,微控制器)
文件頁數(shù): 59/136頁
文件大?。?/td> 837K
代理商: PIC16C642
1996 Microchip Technology Inc.
Preliminary
DS30559A-page 59
PIC16C64X & PIC16C66X
9.3
Reset
The PIC16CXXX differentiates between various kinds
of reset:
a)
Power-on reset (POR)
b)
MCLR reset during normal operation
c)
MCLR reset during SLEEP
d)
WDT reset (normal operation)
e)
Brown-out Reset (BOR)
f)
Parity Error Reset (PER)
Some registers are not affected in any reset condition;
their status is unknown on POR and unchanged in any
other reset. Most other registers are reset to a “reset
state” on Power-on reset, MCLR, WDT reset,
Brown-out Reset, Parity Error Reset, and on MCLR
reset during SLEEP. They are not affected by a WDT
wake-up, since this is viewed as the resumption of nor-
mal operation. TO and PD bits are set or cleared differ-
ently in different reset situations as indicated in
Table 9-4. These bits are used in software to determine
the nature of the reset. See Table 9-6 for a full descrip-
tion of reset states of all registers.
A simplified block diagram of the on-chip reset circuit is
shown in Figure 9-7.
The MCLR reset path has a noise filter to detect and
ignore small pulses. See Table 12-6 for pulse width
specification.
FIGURE 9-7:
SIMPLIFIED BLOCK DIAGRAM OF ON-CHIP RESET CIRCUIT
S
R
Q
External
Reset
MCLR/
V
DD
OSC1/
CLKIN
Pin
WDT
Module
V
DD
rise
detect
OST/PWRT
On-chip
(1)
RC OSC
WDT Time-out
Power-on Reset
OST
PWRT
Chip_Reset
10-bit Ripple-counter
Enable OST
Enable PWRT
SLEEP
See Table 9-3 for time-out situations.
Note 1: This is a separate oscillator from the RC oscillator of the CLKIN pin.
Brown-out
Reset
BODEN
V
PP
Pin
10-bit Ripple-counter
Program
Memory
Parity
MPEEN
相關(guān)PDF資料
PDF描述
PIC16C64A Using the 8-Bit Parallel Slave Port(每個I/O口有25mA驅(qū)動/吸收電流,并行從動口,1路捕捉/比較/PWM的微控制器)
PIC16C66 8-Bit CMOS Microcontrollers(每個I/O口有25mA驅(qū)動/吸收電流,1路捕捉/比較/PWM的微控制器)
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PIC16C62 8-Bit CMOS Microcontrollers(每個I/O口有25mA驅(qū)動/吸收電流,22個I/O,2.5V的微控制器)
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相關(guān)代理商/技術(shù)參數(shù)
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PIC16C642/JW 功能描述:8位微控制器 -MCU 7KB 176 RAM 22 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC16C642-04/SO 功能描述:8位微控制器 -MCU 7KB 176 RAM 22 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC16C642-04/SP 功能描述:8位微控制器 -MCU 7KB 176 RAM 22 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC16C642-04E/SO 功能描述:8位微控制器 -MCU 7KB 176 RAM 22 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC16C642-04E/SP 功能描述:8位微控制器 -MCU 7KB 176 RAM 22 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT