- 您现在的位置：买卖IC网 > PDF目录11473 > PIC18F2321-E/SP (Microchip Technology)IC PIC MCU FLASH 4KX16 28SPDIP PDF资料下载
参数资料
| 型号： | PIC18F2321-E/SP |
| 厂商： | Microchip Technology |
| 文件页数： | 50/110页 |
| 文件大小： | 0K |
| 描述： | IC PIC MCU FLASH 4KX16 28SPDIP |
| 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： | 25MHz |
| 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： | 25 |
| 程序存储器容量： | 8KB（4K x 16） |
| 程序存储器类型： | 闪存 |
| EEPROM 大小： | 256 x 8 |
| RAM 容量： | 512 x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 4.2 V ~ 5.5 V |
| 数据转换器： | A/D 10x10b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 28-DIP（0.300"，7.62mm） |
| 包装： | 管件 |
| 配用： | DVA18XP280-ND - DEVICE ADAPTER 18F2220 PDIP 28LD |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页当前第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页
PIC18F2221/2321/4221/4321 FAMILY
DS39689F-page 44
2009 Microchip Technology Inc.
4.4.1
PRI_IDLE MODE
This mode is unique among the three low-power Idle
modes, in that it does not disable the primary device
clock. For timing sensitive applications, this allows for
the fastest resumption of device operation with its more
accurate primary clock source, since the clock source
does not have to “warm-up” or transition from another
oscillator.
PRI_IDLE mode is entered from PRI_RUN mode by
setting the IDLEN bit and executing a SLEEP instruc-
tion. If the device is in another Run mode, set IDLEN
first, then clear the SCS bits and execute SLEEP.
Although the CPU is disabled, the peripherals continue
to be clocked from the primary clock source specified
by the FOSC<3:0> Configuration bits. The OSTS bit
remains set (see Figure 4-7).
When a wake event occurs, the CPU is clocked from the
primary clock source. A delay of interval TCSD (parame-
ter 38, Table 27-10) is required between the wake event
and when code execution starts. This is required to
allow the CPU to become ready to execute instructions.
After the wake-up, the OSTS bit remains set. The
IDLEN and SCS bits are not affected by the wake-up
(see Figure 4-8).
4.4.2
SEC_IDLE MODE
In SEC_IDLE mode, the CPU is disabled but the
peripherals continue to be clocked from the Timer1
oscillator. This mode is entered from SEC_RUN by
setting the IDLEN bit and executing a SLEEP
instruction. If the device is in another Run mode, set the
IDLEN bit first, then set the SCS<1:0> bits to ‘01’ and
execute SLEEP. When the clock source is switched to
the Timer1 oscillator, the primary oscillator is shut down,
the OSTS bit is cleared and the T1RUN bit is set.
When a wake event occurs, the peripherals continue to
be clocked from the Timer1 oscillator. After an interval
of TCSD following the wake event, the CPU begins exe-
cuting code being clocked by the Timer1 oscillator. The
IDLEN and SCS bits are not affected by the wake-up;
the Timer1 oscillator continues to run (see Figure 4-8).
FIGURE 4-7:
TRANSITION TIMING FOR ENTRY TO IDLE MODE
FIGURE 4-8:
TRANSITION TIMING FOR WAKE FROM IDLE TO RUN MODE
Note:
The Timer1 oscillator should already be
running prior to entering SEC_IDLE mode.
If the T1OSCEN bit is not set when writing
the SCS<1:0> bits, entry to SEC_IDLE
mode will not occur. If the Timer1 oscillator
is enabled but not yet running, peripheral
clocks will be delayed until the oscillator
has started. In such situations, initial oscil-
lator operation is far from stable and
unpredictable operation may result.
Q1
Peripheral
Program
PC
PC + 2
OSC1
Q3
Q4
Q1
CPU Clock
Clock
Counter
Q2
OSC1
Peripheral
Program
PC
CPU Clock
Q1
Q3
Q4
Clock
Counter
Q2
Wake Event
TCSD
相关PDF资料 |
PDF描述 |
|---|---|
| VI-22N-IX | CONVERTER MOD DC/DC 18.5V 75W |
| VI-B5F-CU-F3 | CONVERTER MOD DC/DC 72V 200W |
| DSPIC30F2012-20I/ML | IC DSPIC MCU/DSP 12K 28QFN |
| VI-22J-IX | CONVERTER MOD DC/DC 36V 75W |
| VI-B5F-CU-F2 | CONVERTER MOD DC/DC 72V 200W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PIC18F2321-I/ML | 功能描述:8位微控制器 -MCU 8 KB Flash 512 RAM 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 |
| PIC18F2321-I/SO | 功能描述:8位微控制器 -MCU 8 KB Flash 512 RAM 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 |
| PIC18F2321-I/SP | 功能描述:8位微控制器 -MCU 8 KB Flash 512 RAM 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 |
| PIC18F2321-I/SP | 制造商:Microchip Technology Inc 功能描述:8-Bit Microcontroller IC |
| PIC18F2321-I/SS | 功能描述:8位微控制器 -MCU 8KB Flash 512bytes 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。