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| 型号： | P89LPC9251FDH |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-bit microcontroller with accelerated two-clock 80C51 core 2 kB-4 kB-8 kB 3 V byte-erasable flash with 8-bit ADC |
| 中文描述： | MICROCONTROLLER, PDSO20 |
| 封装： | 4.40 MM, PLASTIC, MO-153, SOT360-1, TSSOP-20 |
| 文件页数： | 41/75页 |
| 文件大小： | 1612K |
| 代理商： | P89LPC9251FDH |
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P89LPC92X1
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 1 December 2010
46 of 75
NXP Semiconductors
P89LPC9201/9211/922A1/9241/
8-bit microcontroller with 8-bit ADC
Table 10 shows the factory default Boot Vector setting for these devices. A
factory-provided bootloader is pre-programmed into the address space indicated and
uses the indicated bootloader entry point to perform ISP functions. This code can be
erased by the user.
Remark: Users who wish to use this loader should take precautions to avoid erasing the
1 kB sector that contains this bootloader. Instead, the page erase function can be used to
erase the first eight 64-byte pages located in this sector.
A custom bootloader can be written with the Boot Vector set to the custom bootloader, if
desired.
7.28.10 Hardware activation of the bootloader
The bootloader can also be executed by forcing the device into ISP mode during a
power-on sequence (see the P89LPC9201/9211/922A1/9241/9251 User manual for
specific information). This has the same effect as having a non-zero status byte. This
allows an application to be built that will normally execute user code but can be manually
forced into ISP operation. If the factory default setting for the boot vector is changed, it will
no longer point to the factory pre-programmed ISP bootloader code. After programming
the flash, the status byte should be programmed to zero in order to allow execution of the
user’s application code beginning at address 0000H.
7.29 User configuration bytes
Some user-configurable features of the P89LPC9201/9211/922A1/9241/9251 must be
defined at power-up and therefore cannot be set by the program after start of execution.
These features are configured through the use of the flash byte UCFG1 and UCFG2.
Please see the P89LPC9201/9211/922A1/9241/9251 User manual for additional details.
7.30 User sector security bytes
There are two/four/eight User Sector Security Bytes on the
P89LPC9201/9211/922A1/9241/9251. Each byte corresponds to one sector. Please see
the P89LPC9201/9211/922A1/9241/9251 User manual for additional details.
8.
ADC (P89LPC9241/9251)
8.1 General description
The P89LPC9241/9251 has two analog-to-digital converter modules: ADC0 and ADC1.
ADC1 is an 8-bit, 4-channel multiplexed successive approximation analog-to-digital
converter. ADC0 is dedicated for on-chip temperature sensor which operates over wide
Table 10.
Default boot vector values and ISP entry points
Device
Default
boot vector
Default
bootloader
entry point
Default bootloader
code range
1 kB sector
range
P89LPC9201
07H
0700H
0600H to 07FFH
0400H to 07FFH
P89LPC9211/9241
0FH
0F00H
0E00H to 0FFFH
0C00H to 0FFFH
P89LPC922A1/9251
1FH
1F00H
1E00H to 1FFFH
1C00H to 1FFFH
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相关代理商/技术参数 |
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| P89LPC9251FDH,112 | 功能描述:8位微控制器 -MCU MCU 8-Bit CISC 8KB Flash2.5V/3.3V 20Pin 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 |
| P89LPC925FDH | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit microcontrollers with accelerated two-clock 80C51 core 4 kB/8 kB 3 V low-power Flash with 8-bit A/D converter |
| P89LPC925FDH,529 | 功能描述:8位微控制器 -MCU 80C51 8K FL 256B 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 |
| P89LPC925FDH-S | 制造商:NXP Semiconductors 功能描述:MCU 8-bit P89 80C51 CISC 8KB Flash 2.5V/3.3V 20-Pin TSSOP |
| P89LPC925FN,129 | 功能描述:8位微控制器 -MCU 8K FL/256B RAM/I2C/UART/ADC 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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