- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄3876 > PIC18LF24K22-I/SS (Microchip Technology)IC PIC MCU 16KB FLASH 28SSOP PDF資料下載
參數(shù)資料
| 型號： | PIC18LF24K22-I/SS |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 36/71頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC PIC MCU 16KB FLASH 28SSOP |
| 產(chǎn)品培訓模塊： | 8-bit PIC® Microcontroller Portfolio |
| 標準包裝： | 47 |
| 系列： | PIC® XLP™ 18F |
| 核心處理器： | PIC |
| 芯體尺寸： | 8-位 |
| 速度： | 64MHz |
| 連通性： | I²C，SPI，UART/USART |
| 外圍設備： | 欠壓檢測/復位，HLVD，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 24 |
| 程序存儲器容量： | 16KB（8K x 16） |
| 程序存儲器類型： | 閃存 |
| EEPROM 大?。?/td> | 256 x 8 |
| RAM 容量： | 768 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 1.8 V ~ 3.6 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 19x10b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 28-SSOP（0.209"，5.30mm 寬） |
| 包裝： | 管件 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁當前第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁
2010-2012 Microchip Technology Inc.
DS41412E-page 41
PIC18(L)F2X/4XK22
TABLE 2-3:
OSC1 AND OSC2 PIN STATES IN SLEEP MODE
2.11
Clock Switching
The system clock source can be switched between
external and internal clock sources via software using
the System Clock Select (SCS<1:0>) bits of the
OSCCON register.
PIC18(L)F2X/4XK22 devices contain circuitry to pre-
vent clock “glitches” when switching between clock
sources. A short pause in the device clock occurs dur-
ing the clock switch. The length of this pause is the sum
of two cycles of the old clock source and three to four
cycles of the new clock source. This formula assumes
that the new clock source is stable.
Clock transitions are discussed in greater detail in
2.11.1
SYSTEM CLOCK SELECT
(SCS<1:0>) BITS
The System Clock Select (SCS<1:0>) bits of the
OSCCON register select the system clock source that
is used for the CPU and peripherals.
When SCS<1:0> = 00, the system clock source is
determined by configuration of the FOSC<3:0>
bits in the CONFIG1H Configuration register.
When SCS<1:0> = 10, the system clock source is
chosen by the internal oscillator frequency
selected by the INTSRC bit of the OSCTUNE
register, the MFIOSEL bit of the OSCCON2
register and the IRCF<2:0> bits of the OSCCON
register.
When SCS<1:0> = 01, the system clock source is
the 32.768 kHz secondary oscillator shared with
Timer1, Timer3 and Timer5.
After a Reset, the SCS<1:0> bits of the OSCCON
register are always cleared.
2.11.2
OSCILLATOR START-UP TIME-OUT
STATUS (OSTS) BIT
The Oscillator Start-up Time-out Status (OSTS) bit of
the OSCCON register indicates whether the system
clock is running from the external clock source, as
defined by the FOSC<3:0> bits in the CONFIG1H
Configuration register, or from the internal clock
source. In particular, when the primary oscillator is the
source of the primary clock, OSTS indicates that the
Oscillator Start-up Timer (OST) has timed out for LP,
XT or HS modes.
OSC Mode
OSC1 Pin
OSC2 Pin
RC, INTOSC with CLKOUT Floating, external resistor should pull high
At logic low (clock/4 output)
RC with IO
Floating, external resistor should pull high
Configured as PORTA, bit 6
INTOSC with IO
Configured as PORTA, bit 7
Configured as PORTA, bit 6
EC with IO
Floating, pulled by external clock
Configured as PORTA, bit 6
EC with CLKOUT
Floating, pulled by external clock
At logic low (clock/4 output)
LP, XT, HS
Feedback inverter disabled at quiescent
voltage level
Feedback inverter disabled at quiescent
voltage level
Note:
See Table 4-2 in Section 4.0 “Reset” for time-outs due to Sleep and MCLR Reset.
Note:
Any automatic clock switch, which may
occur from Two-Speed Start-up or Fail-
Safe Clock Monitor, does not update the
SCS<1:0> bits of the OSCCON register.
The user can monitor the SOSCRUN,
MFIOFS
and
LFIOFS
bits
of
the
OSCCON2 register, and the HFIOFS and
OSTS bits of the OSCCON register to
determine the current system clock source.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PIC24F08KL402-I/ML | IC MCU 16BIT 8KB FLASH 28-QFN |
| PIC24F08KL302-I/SP | IC MCU 16BIT 8KB FLASH 28-SPDIP |
| PIC16LF1938-I/ML | IC MCU 8BIT FLASH 28QFN |
| PIC24F08KL402-I/MQ | IC MCU 16BIT 8KB FLASH 28-QFN |
| PIC16LF1938-I/MV | IC MCU 8BIT 28KB FLASH 28UQFN |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PIC18LF24K22T-I/ML | 功能描述:8位微控制器 -MCU 16KB Flash 768B RAM 8b FamilynanoWat XLP 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 |
| PIC18LF24K22T-I/MV | 功能描述:8位微控制器 -MCU 16KB Flash 768b RAM SERIAL EE IND 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 |
| PIC18LF24K22T-I/SO | 功能描述:8位微控制器 -MCU 16KB Flash 768B RAM 8b FamilynanoWat XLP 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 |
| PIC18LF24K22T-I/SS | 功能描述:8位微控制器 -MCU 16KB Flash 768B RAM 8b FamilynanoWat XLP 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 |
| PIC18LF24K50-E/ML | 制造商:Microchip Technology Inc 功能描述:16 KB FLASH, 2048 BYTES RAM, 48 MHZ INT. OSC, 25 I/0, PIC18 - Rail/Tube 制造商:Microchip Technology Inc 功能描述:IC MCU 8BIT 16KB FLASH 28QFN |
發(fā)布緊急采購，3分鐘左右您將得到回復。