A Brown-out is a condition where device power (" />
參數(shù)資料
型號： PIC10F222-E/OT
廠商： Microchip Technology
文件頁數(shù)： 37/86頁
文件大?。?/td> 0K
描述： IC PIC MCU FLASH 512X12 SOT-23-6
標(biāo)準(zhǔn)包裝： 3,000
系列： PIC® 10F
核心處理器： PIC
芯體尺寸： 8-位
速度： 8MHz
外圍設(shè)備： POR，WDT
輸入/輸出數(shù)： 4
程序存儲器容量： 768B（512 x 12）
程序存儲器類型： 閃存
RAM 容量： 23 x 8
電壓 - 電源 (Vcc/Vdd)： 2 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 2x8b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 125°C
封裝/外殼： SOT-23-6
包裝： 散裝
PIC10F220/222
DS41270E-page 40
2007 Microchip Technology Inc.
8.8
Reset on Brown-out
A Brown-out is a condition where device power (VDD)
dips below its minimum value, but not to zero, and then
recovers. The device should be reset in the event of a
Brown-out.
To reset PIC10F220/222 devices when a Brown-out
occurs, external Brown-out protection circuits may be
built, as shown in Figure 8-7 and Figure 8-8.
FIGURE 8-7:
BROWN-OUT
PROTECTION CIRCUIT 1
FIGURE 8-8:
BROWN-OUT
PROTECTION CIRCUIT 2
FIGURE 8-9:
BROWN-OUT
PROTECTION CIRCUIT 3
8.9
Power-down Mode (Sleep)
A device may be powered down (Sleep) and later
powered up (wake-up from Sleep).
8.9.1
SLEEP
The Power-Down mode is entered by executing a
SLEEP
instruction.
If enabled, the Watchdog Timer will be cleared but
keeps running, the TO bit (STATUS<4>) is set, the PD
bit (STATUS<3>) is cleared and the oscillator driver is
turned off. The I/O ports maintain the status they had
before the SLEEP instruction was executed (driving
high, driving low or high-impedance).
For lowest current consumption while powered down,
the T0CKI input should be at VDD or VSS and the GP3/
MCLR/VPP pin must be at a logic high level if MCLR is
enabled.
Note
1:
This circuit will activate Reset when VDD goes
below Vz + 0.7V (where Vz = Zener voltage).
2:
Pin must be configured as MCLR.
33k
10k
40k(1)
VDD
MCLR(2)
PIC10F22X
VDD
Q1
Note
1:
This brown-out circuit is less expensive,
although less accurate. Transistor Q1 turns
off when VDD is below a certain level such
that:
2:
Pin must be configured as MCLR.
VDD
R1
R1 + R2
= 0.7V
R2
40k(1)
VDD
MCLR(2)
PIC10F22X
R1
Q1
VDD
Note:
A Reset generated by a WDT time-out
does not drive the MCLR pin low.
Note 1:
This Brown-out Protection circuit employs
Microchip Technology’s MCP809 micro-
controller supervisor. There are 7 different
trip point selections to accommodate 5V to
3V systems.
2:
Pin must be configured as MCLR.
MCLR
(2)
PIC10F22X
VDD
VSS
RST
MCP809
VDD
Bypass
Capacitor
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參數(shù)描述
PIC10F222EP 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:6-Pin, 8-Bit Flash Microcontrollers
PIC10F222I/MC 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:High-Performance Microcontrollers with 8-bit A/D
PIC10F222-I/MC 功能描述:8位微控制器 -MCU 0.75KB 23B RAM 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
PIC10F222I/OT 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:High-Performance Microcontrollers with 8-bit A/D
PIC10F222-I/OT 功能描述:8位微控制器 -MCU 768B Flash 23B RAM 4 I/O 8bit ADC 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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