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参数资料
| 型号： | PIC18F25K22T-I/ML |
| 厂商： | Microchip Technology |
| 文件页数： | 29/71页 |
| 文件大小： | 0K |
| 描述： | MCU 8BIT 32KB FLASH 28QFN |
| 标准包装： | 1,600 |
| 系列： | PIC® XLP™ 18F |
| 核心处理器： | PIC |
| 芯体尺寸： | 8-位 |
| 速度： | 64MHz |
| 连通性： | I²C，SPI，UART/USART |
| 外围设备： | 欠压检测/复位，HLVD，POR，PWM，WDT |
| 输入/输出数： | 24 |
| 程序存储器容量： | 32KB（16K x 16） |
| 程序存储器类型： | 闪存 |
| EEPROM 大小： | 256 x 8 |
| RAM 容量： | 1.5K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 1.8 V ~ 5.5 V |
| 数据转换器： | A/D 19x10b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 28-VQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
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2010-2012 Microchip Technology Inc.
DS41412E-page 35
PIC18(L)F2X/4XK22
2.5.3
LP, XT, HS MODES
The LP, XT and HS modes support the use of quartz
crystal resonators or ceramic resonators connected to
OSC1 and OSC2 (Figure 2-6). The mode selects a low,
medium or high gain setting of the internal inverter-
amplifier to support various resonator types and speed.
LP Oscillator mode selects the lowest gain setting of the
internal inverter-amplifier. LP mode current consumption
is the least of the three modes. This mode is best suited
to drive resonators with a low drive level specification, for
example, tuning fork type crystals.
XT Oscillator mode selects the intermediate gain
setting of the internal inverter-amplifier. XT mode
current consumption is the medium of the three modes.
This mode is best suited to drive resonators with a
medium drive level specification.
HS Oscillator mode offers a Medium Power (MP) and a
High Power (HP) option selectable by the FOSC<3:0>
bits. The MP selections are best suited for oscillator
frequencies between 4 MHz and 16 MHz. The HP
selection has the highest gain setting of the internal
inverter-amplifier and is best suited for frequencies
above 16 MHz. HS mode is best suited for resonators
that require a high drive setting.
FIGURE 2-6:
QUARTZ CRYSTAL
OPERATION (LP, XT OR
HS MODE)
FIGURE 2-7:
CERAMIC RESONATOR
OPERATION
(XT OR HS MODE)
Note 1:
A series resistor (RS) may be required for
quartz crystals with low drive level.
2:
The value of RF varies with the Oscillator mode
selected (typically between 2 M
to 10 M.
C1
C2
Quartz
RS(1)
OSC1/CLKIN
RF(2)
Sleep
To Internal
Logic
PIC MCU
Crystal
OSC2/CLKOUT
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, refer to the
following Microchip Application 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)
Note
1: A series resistor (RS) may be required for
ceramic resonators with low drive level.
2: The value of RF varies with the Oscillator mode
selected (typically between 2 M
to 10 M.
3: An additional parallel feedback resistor (RP)
may be required for proper ceramic resonator
operation.
C1
C2 Ceramic
RS(1)
OSC1/CLKIN
RF(2)
Sleep
To Internal
Logic
PIC MCU
RP(3)
Resonator
OSC2/CLKOUT
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PIC18F25K50-E/ML | 制造商:Microchip Technology Inc 功能描述:32 KB FLASH, 2048 BYTES RAM, 4 制造商:Microchip Technology Inc 功能描述:IC MCU 8BIT 32KB FLASH 28QFN |
| PIC18F25K50-E/SO | 制造商:Microchip Technology Inc 功能描述:32 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 32KB FLASH 28SOIC |
| PIC18F25K50-E/SP | 制造商:Microchip Technology Inc 功能描述:32 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 32KB FLASH 28SPDIP |
| PIC18F25K50-E/SS | 制造商:Microchip Technology Inc 功能描述:32 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 32KB FLASH 28SSOP 制造商:Microchip Technology Inc 功能描述:32 KB Flash, 2048 bytes RAM, 48 MHz Int. Osc, 25 I/0, PIC18 Core, USB 2.0, 28 SS |
| PIC18F25K50-I/ML | 功能描述:8位微控制器 -MCU 32 KB Flash RAM 48 MHz Int. 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 |
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