V
參數(shù)資料
型號: PIC12CE674-10/P
廠商: Microchip Technology
文件頁數(shù): 88/129頁
文件大?。?/td> 0K
描述: IC MCU OTP 2KX14 A/D&EE 8DIP
產(chǎn)品培訓(xùn)模塊: Asynchronous Stimulus
8-bit PIC® Microcontroller Portfolio
標(biāo)準(zhǔn)包裝: 60
系列: PIC® 12C
核心處理器: PIC
芯體尺寸: 8-位
速度: 10MHz
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 5
程序存儲器容量: 3.5KB(2K x 14)
程序存儲器類型: OTP
EEPROM 大?。?/td> 16 x 8
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 4x8b
振蕩器型: 內(nèi)部
工作溫度: 0°C ~ 70°C
封裝/外殼: 8-DIP(0.300",7.62mm)
包裝: 管件
配用: ISPICR1-ND - ADAPTER IN-CIRCUIT PROGRAMMING
AC124001-ND - MODULE SKT PROMATEII 8DIP/SOIC
1999 Microchip Technology Inc.
DS30561B-page 61
PIC12C67X
FIGURE 9-10: EXTERNAL POWER-ON
RESET CIRCUIT (FOR SLOW
VDD POWER-UP)
Note 1: External Power-on Reset circuit is required only
if VDD power-up slope is too slow. The diode D
helps discharge the capacitor quickly when VDD
powers down.
2: R < 40 k
is recommended to make sure that
voltage drop across R does not violate the
device’s electrical specification.
3: R1 = 100
to 1 k will limit any current flowing
into MCLR from external capacitor C, in the
event of MCLR/VPP pin breakdown due to
Electrostatic Discharge (ESD) or Electrical
Overstress (EOS).
C
R1
R
D
VDD
MCLR
PIC12C67X
FIGURE 9-11: EXTERNAL BROWN-OUT
PROTECTION CIRCUIT 1
FIGURE 9-12: EXTERNAL BROWN-OUT
PROTECTION CIRCUIT 2
Note 1:
This circuit will activate reset when VDD goes
below (Vz + 0.7V), where Vz = Zener voltage.
2: Resistors should be adjusted for the character-
istics of the transistor.
VDD
33k
10k
4.3k
VDD
MCLR
PIC12C67X
Note 1:
This brown-out circuit is less expensive,
albeit less accurate. Transistor Q1 turns off
when VDD is below a certain level such that:
2: Resistors should be adjusted for the charac-
teristics of the transistor.
VDD
R1
R1 + R2
= 0.7V
VDD
R2
4.3k
PIC12C67X
R1
Q1
VDD
MCLR
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