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參數(shù)資料
| 型號： | P89LPC983FDH,529 |
| 廠商： | NXP Semiconductors |
| 文件頁數(shù)： | 38/85頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC 80C51 MCU 4KB FLASH 28TSSOP |
| 標(biāo)準(zhǔn)包裝： | 51 |
| 系列： | LPC900 |
| 核心處理器： | 8051 |
| 芯體尺寸： | 8-位 |
| 速度： | 18MHz |
| 連通性： | I²C，SPI，UART/USART |
| 外圍設(shè)備： | 欠壓檢測/復(fù)位，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 26 |
| 程序存儲器容量： | 4KB（4K x 8） |
| 程序存儲器類型： | 閃存 |
| RAM 容量： | 256 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.4 V ~ 5.5 V |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 28-TSSOP（0.173"，4.40mm 寬） |
| 包裝： | 管件 |
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P89LPC980_982_983_985
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 4 — 15 June 2010
43 of 85
NXP Semiconductors
P89LPC980/982/983/985
8-bit microcontroller with accelerated two-clock 80C51 core
or not. When switching back to high speed mode, first clear LPMOD bit to select high
speed mode, then check HCOK bit. If HCOK bit turns to ‘1’, it means the switch was
completed.
7.18 Reset
The P1.5/RST pin can function as either a LOW-active reset input or as a digital input,
P1.5. The Reset Pin Enable (RPE) bit in UCFG1, when set to logic 1, enables the external
reset input function on P1.5. When cleared, P1.5 may be used as an input pin.
Remark: During a power-up sequence, the RPE selection is overridden and this pin
always functions as a reset input. An external circuit connected to this pin should not
hold this pin LOW during a power-on sequence as this will keep the device in reset.
After power-up this pin will function as defined by the RPE bit. Only a power-up reset will
temporarily override the selection defined by RPE bit. Other sources of reset will not
override the RPE bit.
Reset can be triggered from the following sources:
External reset pin (during power-up or if user configured via UCFG1)
Power-on detect
Brownout detect
Watchdog timer
Software reset
UART break character detect reset
For every reset source, there is a flag in the Reset Register, RSTSRC. The user can read
this register to determine the most recent reset source. These flag bits can be cleared in
software by writing a logic 0 to the corresponding bit. More than one flag bit may be set:
During a power-on reset, both POF and BOF are set but the other flag bits are
cleared.
A watchdog reset is similar to a power-on reset, both POF and BOF are set but the
other flag bits are cleared.
For any other reset, previously set flag bits that have not been cleared will remain set.
7.18.1 Reset vector
Following reset, the P89LPC980/982/983/985 will fetch instructions from either address
0000H or the Boot address. The Boot address is formed by using the boot vector as the
high byte of the address and the low byte of the address = 00H.
The boot address will be used if a UART break reset occurs, or the non-volatile boot
status bit (BOOTSTAT.0) = 1, or the device is forced into ISP mode during power-on (see
P89LPC980/982/983/985 User manual). Otherwise, instructions will be fetched from
address 0000H.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| P89LPC985 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core, 4 kB/8 kB wide-voltage byte-erasable flash with 10-bit ADC |
| P89LPC985FA | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core, 4 kB/8 kB wide-voltage byte-erasable flash with 10-bit ADC |
| P89LPC985FA,529 | 功能描述:處理器 - 專門應(yīng)用 8B MCU 2 CLOCK 80C51 4/8KB WIDE-10B RoHS:否 制造商:Freescale Semiconductor 類型:Multimedia Applications 核心:ARM Cortex A9 處理器系列:i.MX6 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:1 GHz 指令/數(shù)據(jù)緩存: 數(shù)據(jù) RAM 大小:128 KB 數(shù)據(jù) ROM 大小: 工作電源電壓: 最大工作溫度:+ 95 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MAPBGA-432 |
| P89LPC985FDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core, 4 kB/8 kB wide-voltage byte-erasable flash with 10-bit ADC |
| P89LPC985FDH,529 | 功能描述:8位微控制器 -MCU 8B MCU 2 CLOCK 80C51 4/8KB WIDE-10B 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(fēng)格:SMD/SMT |
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