参数资料
| 型号： | P89LPC901FD,112 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 35/53页 |
| 文件大小： | 0K |
| 描述： | IC 80C51 MCU FLASH 1K 8-SOIC |
| 产品培训模块： | Migrating from 8/16-Bit MCUs to 32-Bit ARMs |
| 标准包装： | 1 |
| 系列： | LPC900 |
| 核心处理器： | 8051 |
| 芯体尺寸： | 8-位 |
| 速度： | 18MHz |
| 外围设备： | 欠压检测/复位，LED，POR，PWM，WDT |
| 输入/输出数： | 6 |
| 程序存储器容量： | 1KB（1K x 8） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 128 x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.4 V ~ 3.6 V |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 剪切带 (CT) |
| 配用： | 622-1009-ND - BOARD FOR LPC901 8-DIP 622-1008-ND - BOARD FOR LPC9103 10-HVSON 622-1006-ND - SOCKET ADAPTER BOARD 622-1002-ND - USB IN-CIRCUIT PROG LPC9XX 568-1759-ND - EMULATOR DEBUGGER/PROGRMMR LPC9X |
| 其它名称： | 568-1994-1 |
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Philips Semiconductors
P89LPC901/902/903
8-bit microcontrollers with two-clock 80C51 core
Product data
Rev. 05 — 17 December 2004
40 of 53
9397 750 14465
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
8.25 Additional features
8.25.1
Software reset
The SRST bit in AUXR1 gives software the opportunity to reset the processor
completely, as if an external reset or Watchdog reset had occurred. Care should be
taken when writing to AUXR1 to avoid accidental software resets.
8.25.2
Dual data pointers
The dual Data Pointers (DPTR) provides two different Data Pointers to specify the
address used with certain instructions. The DPS bit in the AUXR1 register selects
one of the two Data Pointers. Bit 2 of AUXR1 is permanently wired as a logic ‘0’ so
that the DPS bit may be toggled (thereby switching Data Pointers) simply by
incrementing the AUXR1 register, without the possibility of inadvertently altering other
bits in the register.
8.26 Flash program memory
8.26.1
General description
The P89LPC901/902/903 Flash memory provides in-circuit electrical erasure and
programming. The Flash can be erased, read, and written as bytes. The Sector and
Page Erase functions can erase any Flash sector (256 bytes) or page (16 bytes). The
Chip Erase operation will erase the entire program memory. In-Circuit Programming
using standard commercial programmers is available. In addition, In-Application
Programming (IAP) and byte erase allows code memory to be used for non-volatile
data storage. On-chip erase and write timing generation contribute to a user-friendly
programming interface. The P89LPC901/902/903 Flash reliably stores memory
contents even after more than 100,000 erase and program cycles. The cell is
(1) Watchdog reset can also be caused by an invalid feed sequence, or by writing to WDCON not immediately followed by a
feed sequence.
Fig 20. Watchdog timer in Watchdog mode (WDTE = ‘1’).
PRE2
PRE1
PRE0
–
WDRUN
WDTOF
WDCLK
WDCON (A7H)
CONTROL REGISTER
PRESCALER
002aaa423
SHADOW
REGISTER
FOR WDCON
8-BIT DOWN
COUNTER
WDL (C1H)
Watchdog
oscillator
PCLK
÷32
MOV WFEED1, #0A5H
MOV WFEED2, #05AH
RESET
see note (1)
相关PDF资料 |
PDF描述 |
|---|---|
| DS80C320-ENL | IC MCU HI SPEED 33MHZ IND 44TQFP |
| DS80C323-END | IC MCU HI SPEED 18MHZ IND 44TQFP |
| DS80C320-ENG | IC MCU HI SPEED 25MHZ IND 44TQFP |
| DS89C450-ENG | IC MCU FLASH 64KB 25MHZ 44-TQFP |
| DS89C440-QNL | IC MCU FLASH 32KB 33MHZ 44-PLCC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| P89LPC901FN | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM |
| P89LPC901FN,129 | 功能描述:8位微控制器 -MCU 80C51 1K FL 128B 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 |
| P89LPC901FN.129 | 制造商:NXP Semiconductors 功能描述:8BIT MCU 1K FLASH 89LC901 DIP8 制造商:NXP Semiconductors 功能描述:8BIT MCU 1K FLASH, 89LC901, DIP8 |
| P89LPC901FN129 | 制造商:NXP Semiconductors 功能描述:IC 8BIT MCU 80C51 12MHZ DIP-8 |
| P89LPC902 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM |
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