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參數(shù)資料
| 型號： | P89LPC935FA |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-bit microcontroller with accelerated two-clock 80C51 core 4 kB/8 kB 3 V byte-erasable Flash with 8-bit A/D converters |
| 中文描述： | 8-BIT, FLASH, 18 MHz, MICROCONTROLLER, PQCC28 |
| 封裝： | PLASTIC, MS-018, SOT-261-2, LCC-28 |
| 文件頁數(shù)： | 52/75頁 |
| 文件大?。?/td> | 372K |
| 代理商： | P89LPC935FA |
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9397 750 15113
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 06 — 20 June 2005
52 of 75
Philips Semiconductors
P89LPC933/934/935/936
8-bit microcontroller with accelerated two-clock 80C51 core
8.28.10
Hardware activation of the boot loader
The boot loader can also be executed by forcing the device into ISP mode during a
power-on sequence (see the P89LPC933/934/935/936 User manualfor 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 preprogrammed ISP boot loader 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.
8.29 User configuration bytes
Some user-configurable features of the P89LPC933/934/935/936 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. Please see the
P89LPC933/934/935/936 User manualfor additional details.
8.30 User sector security bytes
There are eight User Sector Security Bytes on the P89LPC933/934/935/936 device. Each
byte corresponds to one sector. Please see the P89LPC933/934/935/936 User manualfor
additional details.
9.
A/D converter
9.1 General description
The P89LPC935/936 have two 8-bit, 4-channel multiplexed successive approximation
analog-to-digital converter modules sharing common control logic. The P89LPC933/934
have a single 8-bit, 4-channel multiplexed analog-to-digital converter and an additional
DAC module. A block diagram of the A/D converter is shown in
Figure 23
. Each A/D
consists of a 4-input multiplexer which feeds a sample-and-hold circuit providing an input
signal to one of two comparator inputs. The control logic in combination with the SAR
drives a digital-to-analog converter which provides the other input to the comparator. The
output of the comparator is fed to the SAR.
9.2 Features
I
Two (P89LPC935/936) 8-bit, 4-channel multiplexed input, successive approximation
A/D converters with common control logic (one A/D on the P89LPC933/934).
I
Four result registers for each A/D.
I
Six operating modes:
N
Fixed channel, single conversion mode.
N
Fixed channel, continuous conversion mode.
N
Auto scan, single conversion mode.
N
Auto scan, continuous conversion mode.
N
Dual channel, continuous conversion mode.
N
Single step mode.
I
Four conversion start modes:
N
Timer triggered start.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| P89LPC935FA,129 | 功能描述:8位微控制器 -MCU 80C51 8K FL 768B 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 |
| P89LPC935FA129 | 制造商:NXP Semiconductors 功能描述:IC 8BIT MCU 80C51 18MHZ LCC-28 |
| P89LPC935FDH | 制造商:NXP Semiconductors 功能描述: |
| P89LPC935FDH,518 | 功能描述:8位微控制器 -MCU 8B MCU 2-CLOCK 80C51 4/8/16KB 3V 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 |
| P89LPC935FDH,529 | 功能描述:8位微控制器 -MCU 80C51 8K FL 768B 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 |
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