參數(shù)資料
型號： PIC16C620
廠商： Microchip Technology Inc.
英文描述： EPROM-Based 8-Bit CMOS Microcontroller(每個I/O口有25mA驅(qū)動/吸收電流,可編程VREF,2.5V的微控制器)
中文描述： 存儲器為基礎(chǔ)的8位CMOS微控制器（每個的I / O口有25毫安驅(qū)動/吸收電流，可編程參考電壓，為2.5V的微控制器）
文件頁數(shù)： 49/112頁
文件大?。?/td> 1205K
代理商： PIC16C620
1997 Microchip Technology Inc.
Preliminary
DS30235F-page 49
PIC16C62X(A)
9.3
Reset
The PIC16C62X(A) 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)
WDT wake-up (SLEEP)
f)
Brown-out Reset (BOR)
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, on MCLR or WDT reset and
on MCLR reset during SLEEP. They are not affected by
a WDT wake-up, since this is viewed as the resumption
of normal operation. TO and PD bits are set or cleared
differently 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
PP
Pin
V
DD
OSC1/
CLKIN
Pin
WDT
Module
V
DD
rise
detect
OST/PWRT
On-chip
(1)
RC OSC
WDT
Time-out
Reset
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
10-bit Ripple-counter
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC16C620/JW 功能描述:8位微控制器 -MCU .875KB 80 RAM 13 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
PIC16C620-04/P 功能描述:8位微控制器 -MCU .875KB 80 RAM 13 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
PIC16C620-04/P 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU 16C620 DIP18
PIC16C620-04/SO 功能描述:8位微控制器 -MCU .875KB 80 RAM 13 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
PIC16C620-04/SS 功能描述:8位微控制器 -MCU .875KB 80 RAM 13 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
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