- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄3895 > PIC12F519-I/MS (Microchip Technology)IC PIC MCU FLASH 1KX12 8MSOP PDF資料下載
參數(shù)資料
| 型號： | PIC12F519-I/MS |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 39/96頁 |
| 文件大小： | 0K |
| 描述： | IC PIC MCU FLASH 1KX12 8MSOP |
| 產(chǎn)品培訓模塊： | Asynchronous Stimulus 8-bit PIC® Microcontroller Portfolio |
| 標準包裝： | 100 |
| 系列： | PIC® 12F |
| 核心處理器： | PIC |
| 芯體尺寸： | 8-位 |
| 速度： | 8MHz |
| 外圍設(shè)備： | POR，WDT |
| 輸入/輸出數(shù)： | 5 |
| 程序存儲器容量： | 1.5KB（1K x 12） |
| 程序存儲器類型： | 閃存 |
| RAM 容量： | 41 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2 V ~ 5.5 V |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 637 (CN2011-ZH PDF) |
| 配用： | AC162096-ND - HEADER MPLAB ICD2 PIC16F526 8/14 AC164325-ND - MODULE SKT FOR 8MSOP |
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頁第36頁第37頁第38頁當前第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頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁
PIC12F519
DS41319B-page 42
2008 Microchip Technology Inc.
TABLE 8-4:
RESET CONDITION FOR SPECIAL REGISTERS
8.3.1
MCLR ENABLE
This Configuration bit, when unprogrammed (left in the
‘1’ state), enables the external MCLR function. When
programmed, the MCLR function is tied to the internal
FIGURE 8-6:
MCLR SELECT
8.4
Power-on Reset (POR)
The PIC12F519 device incorporates an on-chip
Power-on Reset (POR) circuitry, which provides an
internal chip Reset for most power-up situations.
The on-chip POR circuit holds the chip in Reset until
VDD has reached a high enough level for proper
operation. To take advantage of the internal POR,
program the GP3/MCLR/VPP pin as MCLR and tie
through a resistor to VDD, or program the pin as GP3, in
which case, an internal weak pull-up resistor is
implemented using a transistor (refer to Table 11-4 for
the pull-up resistor ranges). This will eliminate external
RC components usually needed to create a Power-on
Reset. A maximum rise time for VDD is specified. See
for details.
When the devices start normal operation (exit the Reset
condition), device operating parameters (voltage,
frequency, temperature,...) must be met to ensure
operation. If these conditions are not met, the devices
must be held in Reset until the operating parameters
are met.
A simplified block diagram of the on-chip Power-on
Reset circuit is shown in Figure 8-7.
The Power-on Reset circuit and the Device Reset Timer
(see Section 8.5 “Device Reset Timer (DRT)”) circuit
are closely related. On power-up, the Reset latch is set
and the DRT is reset. The DRT timer begins counting
once it detects MCLR to be high. After the time-out
period, which is typically 18 ms or 1 ms, it will reset the
Reset latch and thus end the on-chip Reset signal.
A power-up example where MCLR is held low is shown
bringing MCLR high. The chip will actually come out of
Reset TDRT after MCLR goes high.
In Figure 8-9, the on-chip Power-on Reset feature is
being used (MCLR and VDD are tied together or the pin
is programmed to be GP3). The VDD is stable before
the Start-up timer times out and there is no problem in
getting a proper Reset. However, Figure 8-10 depicts a
problem situation where VDD rises too slowly. The time
between when the DRT senses that MCLR is high and
when MCLR and VDD actually reach their full value, is
too long. In this situation, when the start-up timer times
out, VDD has not reached the VDD (min) value and the
chip may not function correctly. For such situations, we
recommend that external RC circuits be used to
achieve longer POR delay times (Figure 8-9).
For additional information, refer to Application Note
AN522, “Power-Up Considerations” (DS00522)
STATUS Addr: 03h
Power-on Reset
0-01 1xxx
MCLR Reset during normal operation
0-0u uuuu
MCLR Reset during Sleep
0-01 0uuu
WDT Reset during Sleep
0-00 0uuu
WDT Reset normal operation
0-00 uuuu
Wake-up from Sleep on pin change
1-01 0uuu
Legend: u
= unchanged, x = unknown
GP3/MCLR/VPP
MCLRE
Internal MCLR
GPPU
Note:
When the devices start normal operation
(exit the Reset condition), device operat-
ing parameters (voltage, frequency, tem-
perature, etc.) must be met to ensure
operation. If these conditions are not met,
the device must be held in Reset until the
operating conditions are met.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PIC12F629T-E/SN | IC MCU CMOS 8BIT 1K FLASH 8-SOIC |
| PIC12F675T-I/SN | IC MCU CMOS 1K FLASH W/AD 8-SOIC |
| PIC12F509-I/SM | IC PIC MCU FLASH 1KX12 8-SOIJ |
| PIC12F509-I/P | IC MCU FLASH 1KX12 8DIP |
| 006208512210000 | CONN FFC/FPC 12POS 1MM ZIF SMD |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PIC12F519T-E/MC | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Pin, 8-Bit Flash Microcontroller |
| PIC12F519T-E/MS | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Pin, 8-Bit Flash Microcontroller |
| PIC12F519T-E/P | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Pin, 8-Bit Flash Microcontroller |
| PIC12F519T-E/SN | 制造商:Microchip Technology Inc 功能描述:8-PIN, 1.5KB FLASH PROGRAM, 64 - Tape and Reel |
| PIC12F519T-I/MC | 功能描述:8位微控制器 -MCU 15KB Flash Prgrm 64B 8MHz Intrnl Oscilatr 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。