收藏本站
参数资料
型号： PIC18F248-E/SP
厂商： Microchip Technology
文件页数： 26/116页
文件大小： 0K
描述： IC MCU FLASH 8KX16 W/CAN 28DIP
产品培训模块： Asynchronous Stimulus
标准包装： 15
系列： PIC® 18F
核心处理器： PIC
芯体尺寸： 8-位
速度： 40MHz
连通性： CAN，I²C，SPI，UART/USART
外围设备： 欠压检测/复位，LVD，POR，PWM，WDT
输入/输出数： 22
程序存储器容量： 16KB（8K x 16）
程序存储器类型： 闪存
EEPROM 大小： 256 x 8
RAM 容量： 768 x 8
电压 - 电源 (Vcc/Vdd)： 4.2 V ~ 5.5 V
数据转换器： A/D 5x10b
振荡器型： 外部
工作温度： -40°C ~ 125°C
封装/外壳： 28-DIP（0.300"，7.62mm）
包装： 管件
2006 Microchip Technology Inc.
DS41159E-page 23
PIC18FXX8
2.7
Effects of Sleep Mode on the
On-Chip Oscillator
When the device executes a SLEEP instruction, the
on-chip clocks and oscillator are turned off and the
device is held at the beginning of an instruction cycle
(Q1 state). With the oscillator off, the OSC1 and OSC2
signals will stop oscillating. Since all the transistor
switching currents have been removed, Sleep mode
achieves the lowest current consumption of the device
(only leakage currents). Enabling any on-chip feature
that will operate during Sleep will increase the current
consumed during Sleep. The user can wake from
Sleep through external Reset, Watchdog Timer Reset
or through an interrupt.
2.8
Power-up Delays
Power-up delays are controlled by two timers so that no
external Reset circuitry is required for most applica-
tions. The delays ensure that the device is kept in
Reset until the device power supply and clock are
stable. For additional information on Reset operation,
see Section 3.0 “Reset”.
The first timer is the Power-up Timer (PWRT), which
optionally provides a fixed delay of TPWRT (parameter
#D033) on power-up only (POR and BOR). The second
timer is the Oscillator Start-up Timer (OST), intended to
keep the chip in Reset until the crystal oscillator is
stable.
With the PLL enabled (HS4 Oscillator mode), the time-
out sequence following a Power-on Reset is different
from other oscillator modes. The time-out sequence is
as follows: the PWRT time-out is invoked after a POR
time delay has expired, then the Oscillator Start-up
Timer (OST) is invoked. However, this is still not a
sufficient amount of time to allow the PLL to lock at high
frequencies. The PWRT timer is used to provide an
additional fixed 2 ms (nominal) to allow the PLL ample
time to lock to the incoming clock frequency.
TABLE 2-3:
OSC1 AND OSC2 PIN STATES IN SLEEP MODE
OSC Mode
OSC1 Pin
OSC2 Pin
RC
Floating, external resistor should pull high
At logic low
RCIO
Floating, external resistor should pull high
Configured as PORTA, bit 6
ECIO
Floating
Configured as PORTA, bit 6
EC
Floating
At logic low
LP, XT and HS
Feedback inverter disabled at quiescent
voltage level
Feedback inverter disabled at quiescent
voltage level
Note:
See Table 3-1 in Section 3.0 “Reset” for time-outs due to Sleep and MCLR Reset.
相关PDF资料
PDF描述
PIC16C64A-20I/PT IC MCU OTP 2KX14 PWM 44TQFP
PIC16C64AT-04I/L IC MCU OTP 2KX14 PWM 44PLCC
PIC24HJ256GP610A-E/PF MCU 16BIT 256K FLASH 100TQFP
PIC18F452T-I/L IC MCU FLASH 16KX16 EE 44PLCC
PIC16LC774T-I/PQ IC MCU OTP 4KX14 A/D PWM 44-MQFP
相关代理商/技术参数
参数描述
PIC18F248-I/SO 功能描述:8位微控制器 -MCU 16KB 768 RAM 23 I/O RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F248-I/SO 制造商:Microchip Technology Inc 功能描述:IC 8BIT FLASH MCU CAN ADC 18F248
PIC18F248-I/SP 功能描述:8位微控制器 -MCU 16KB 768 RAM 23 I/O RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F248-I/SP 制造商:Microchip Technology Inc 功能描述:IC 8BIT FLASH MCU CAN ADC 18F248
PIC18F248T-E/SO 功能描述:8位微控制器 -MCU 40MHz 16KB Flash RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*