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參數(shù)資料
型號(hào)： PIC18F24J10-I/SS
廠商： Microchip Technology
文件頁(yè)數(shù)： 39/80頁(yè)
文件大?。?/td> 0K
描述： IC PIC MCU FLASH 8KX16 28SSOP
產(chǎn)品培訓(xùn)模塊： Asynchronous Stimulus
PIC18 J Series MCU Overview
8-bit PIC® Microcontroller Portfolio
標(biāo)準(zhǔn)包裝： 47
系列： PIC® 18F
核心處理器： PIC
芯體尺寸： 8-位
速度： 40MHz
連通性： I²C，SPI，UART/USART
外圍設(shè)備： 欠壓檢測(cè)/復(fù)位，POR，PWM，WDT
輸入/輸出數(shù)： 21
程序存儲(chǔ)器容量： 16KB（8K x 16）
程序存儲(chǔ)器類型： 閃存
RAM 容量： 1K x 8
電壓 - 電源 (Vcc/Vdd)： 2.7 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 10x10b
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
產(chǎn)品目錄頁(yè)面： 642 (CN2011-ZH PDF)
配用： AC162074-ND - HEADER INTRFC MPLAB ICD2 44TQFP
AC162067-ND - HEADER INTRFC MPLAB ICD2 40/28P
PIC16F8X
DS30430C-page 44
1998 Microchip Technology Inc.
8.4
Power-on Reset (POR)
A Power-on Reset pulse is generated on-chip when
VDD rise is detected (in the range of 1.2V - 1.7V). To
take advantage of the POR, just tie the MCLR pin
directly (or through a resistor) to VDD. This will
eliminate external RC components usually needed to
create Power-on Reset. A minimum rise time for VDD
must be met for this to operate properly. See Electrical
Specifications for details.
When the device starts normal operation (exits the
reset condition), device operating parameters (voltage,
frequency, temperature, ...) must be meet to ensure
operation. If these conditions are not met, the device
must be held in reset until the operating conditions
are met.
For additional information, refer to Application Note
AN607, "
Power-up Trouble Shooting."
The POR circuit does not produce an internal reset
when VDD declines.
8.5
Power-up Timer (PWRT)
The Power-up Timer (PWRT) provides a fixed 72 ms
nominal time-out (TPWRT) from POR (Figure 8-10,
and
The
Power-up Timer operates on an internal RC oscillator.
The chip is kept in reset as long as the PWRT is active.
The PWRT delay allows the VDD to rise to an accept-
able level (Possible exception shown in Figure 8-13).
A configuration bit, PWRTE, can enable/disable the
PWRT. See either Figure 8-1 or Figure 8-2 for the oper-
ation of the PWRTE bit for a particular device.
The power-up time delay TPWRT will vary from chip to
chip due to VDD, temperature, and process variation.
See DC parameters for details.
8.6
Oscillator Start-up Timer (OST)
The Oscillator Start-up Timer (OST) provides a 1024
oscillator cycle delay (from OSC1 input) after the
PWRT
delay
ends
Figure 8-12 and Figure 8-13). This ensures the crystal
oscillator or resonator has started and stabilized.
The OST time-out (TOST) is invoked only for XT, LP and
HS modes and only on Power-on Reset or wake-up
from SLEEP.
When VDD rises very slowly, it is possible that the
TPWRT time-out and TOST time-out will expire before
VDD has reached its final value. In this case
(Figure 8-13), an external power-on reset circuit may
be necessary (Figure 8-9).
FIGURE 8-9:
EXTERNAL POWER-ON
RESET CIRCUIT (FOR SLOW
VDD POWER-UP)
Note 1: External Power-on Reset circuit is required
only if VDD power-up rate is too slow. The
diode D helps discharge the capacitor
quickly when VDD powers down.
2: R < 40 k
is recommended to make sure
that voltage drop across R does not exceed
0.2V (max leakage current spec on MCLR
pin is 5
A). A larger voltage drop will
degrade VIH level on the MCLR pin.
3: R1 = 100
to 1 k will limit any current
flowing into MCLR from external
capacitor C in the event of an MCLR pin
breakdown due to ESD or EOS.
C
R1
R
D
VDD
MCLR
PIC16FXX
VDD
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC18F24J10T-I/ML 功能描述:8位微控制器 -MCU 16 KB 1024 RAM 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
PIC18F24J10T-I/SO 功能描述:8位微控制器 -MCU 16 KB 1024 RAM 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
PIC18F24J10T-I/SS 功能描述:8位微控制器 -MCU 16 KB 1 KB RAM 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
PIC18F24J11-I/ML 功能描述:8位微控制器 -MCU 16KB Flash 4KBRAM 12MIPS 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
PIC18F24J11-I/SO 功能描述:8位微控制器 -MCU 16KB Flash 4KBRAM 12MIPS 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
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