參數(shù)資料
型號： PIC12F1840-I/MF
廠商： Microchip Technology
文件頁數(shù)： 70/122頁
文件大?。?/td> 0K
描述： MCU 7KB FLASH 256B RAM 8-DFN
產(chǎn)品培訓模塊： 8-bit PIC® Microcontroller Portfolio
標準包裝： 120
系列： PIC® XLP™ 12F
核心處理器： PIC
芯體尺寸： 8-位
速度： 32MHz
連通性： I²C，LIN，SPI，UART/USART
外圍設備： 欠壓檢測/復位，POR，PWM，WDT
輸入/輸出數(shù)： 5
程序存儲器容量： 7KB（4K x 14）
程序存儲器類型： 閃存
EEPROM 大小： 256 x 8
RAM 容量： 256 x 8
電壓 - 電源 (Vcc/Vdd)： 2.3 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 4x10b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 8-VDFN 裸露焊盤
包裝： 管件
2011 Microchip Technology Inc.
Preliminary
DS41441B-page 51
PIC12(L)F1840
5.2.1.5
TIMER1 Oscillator
The Timer1 Oscillator is a separate crystal oscillator
that is associated with the Timer1 peripheral. It is opti-
mized for timekeeping operations with a 32.768 kHz
crystal connected between the T1OSO and T1OSI
device pins.
The Timer1 Oscillator can be used as an alternate sys-
tem clock source and can be selected during run-time
using clock switching. Refer to Section 5.3 “Clock
for more information.
FIGURE 5-5:
QUARTZ CRYSTAL
OPERATION (TIMER1
OSCILLATOR)
5.2.1.6
External RC Mode
The external Resistor-Capacitor (RC) modes support
the use of an external RC circuit. This allows the
designer maximum flexibility in frequency choice while
keeping costs to a minimum when clock accuracy is not
required.
The RC circuit connects to OSC1. OSC2/CLKOUT is
available for general purpose I/O or CLKOUT. The
function of the OSC2/CLKOUT pin is determined by the
state of the CLKOUTEN bit in Configuration Word 1.
Figure 5-6 shows the external RC mode connections.
FIGURE 5-6:
EXTERNAL RC MODES
The RC oscillator frequency is a function of the supply
voltage, the resistor (REXT) and capacitor (CEXT) values
and the operating temperature. Other factors affecting
the oscillator frequency are:
threshold voltage variation
component tolerances
packaging variations in capacitance
The user also needs to take into account variation due
to tolerance of external RC components used.
Note 1:
Quartz
crystal
characteristics
vary
according
to
type,
package
and
manufacturer. The user should consult the
manufacturer data sheets for specifications
and recommended application.
2:
Always verify oscillator performance over
the VDD and temperature range that is
expected for the application.
3:
For oscillator design assistance, reference
the following Microchip Applications Notes:
AN826, “Crystal Oscillator Basics and
Crystal Selection for rfPIC and PIC
Devices
” (DS00826)
AN849, “Basic PIC Oscillator Design”
(DS00849)
AN943, “Practical PIC Oscillator
Analysis and Design
” (DS00943)
AN949, “Making Your Oscillator Work”
(DS00949)
TB097, “Interfacing a Micro Crystal
MS1V-T1K 32.768 kHz Tuning Fork
Crystal to a PIC16F690/SS
” (DS91097)
AN1288, “Design Practices for
Low-Power External Oscillators
”
(DS01288)
C1
C2
32.768 kHz
T1OSI
To Internal
Logic
PIC MCU
Crystal
T1OSO
Quartz
OSC2/CLKOUT
CEXT
REXT
PIC MCU
OSC1/CLKIN
FOSC/4 or
Internal
Clock
VDD
VSS
Recommended values: 10 k
REXT 100 k, <3V
3 k
REXT 100 k, 3-5V
CEXT > 20 pF, 2-5V
Note
1:
Output depends upon CLKOUTEN bit of the
Configuration Word 1.
I/O(1)
相關(guān)PDF資料
PDF描述
PIC12F519-I/MC IC PIC MCU FLASH 1KX12 8DFN
PIC12F675T-E/MF IC MCU CMOS 1K FLASH W/AD 8-DFN
PIC12F683T-E/MF IC MCU FLASH 2KX14 8DFN
PIC12HV752-E/P IC MCU 8BIT 1024B FLASH 8-PDIP
PIC12LF1501-E/MC IC MCU 8BIT 1.75KB FLASH 8DFN
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC12F1840T-I/MF 功能描述:8位微控制器 -MCU 7KB Flash EEPROM 256b nanoWatt 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 安裝風格:SMD/SMT
PIC12F1840T-I/SN 功能描述:8位微控制器 -MCU 7KB Flash EEPROM 256b nanoWatt 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 安裝風格:SMD/SMT
PIC12F505 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8/14-Pin, 8-Bit Flash Microcontrollers
PIC12F505TE/MC 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8/14-Pin, 8-Bit Flash Microcontrollers
PIC12F505TE/MG 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8/14-Pin, 8-Bit Flash Microcontrollers
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*