參數資料
型號： P89LPC938
廠商： NXP Semiconductors N.V.
英文描述： 8-bit microcontroller with accelerated two-clock 80C51 core 8 kB 3 V byte-erasable Flash with 10-bit A/D converter
中文描述： 8位加速兩個小時微控制器的80C51內核8 KB的3伏字節(jié)可擦除閃存的10位A / D轉換器
文件頁數： 46/68頁
文件大?。?/td> 318K
代理商： P89LPC938
9397 750 14051
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 — 25 February 2005
46 of 68
Philips Semiconductors
P89LPC938
8-bit microcontroller with 10-bit A/D converter
7.29 User configuration bytes
Some user-configurable features of the P89LPC938 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 P89LPC938 User’s
Manualfor additional details.
7.30 User sector security bytes
There are eight User Sector Security Bytes on the P89LPC938. Each byte corresponds to
one sector. Please see the P89LPC938 User’s Manualfor additional details.
8.
A/D converter
8.1 General description
The P89LPC938 has a 10-bit, 8-channel multiplexed successive approximation
analog-to-digital converter module. A block diagram of the A/D converter is shown in
Figure 21
. The A/D consists of an 8-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.
8.2 Features
I
10-bit, 8-channel multiplexed input, successive approximation A/D converter.
I
Eight result register pairs.
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
Three conversion start modes
N
Timer triggered start
N
Start immediately
N
Edge triggered
I
10-bit conversion time of 4
μ
s at an A/D clock of 9 MHz
I
Interrupt or polled operation
I
High and Low Boundary limits interrupt; selectable in or out-of-range
I
Clock divider
I
Power-down mode
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相關代理商/技術參數
參數描述
P89LPC9381 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 3 V byte-erasable flash with 10-bit ADC
P89LPC9381FA 功能描述:8位微控制器 -MCU 4K FL/256B RAM/ I2C/10B ADC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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
P89LPC9381FA,112 功能描述:8位微控制器 -MCU 4K FL/256B RAM/ RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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
P89LPC9381FDH 功能描述:8位微控制器 -MCU 4K FL/256B RAM/ I2C/10B ADC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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
P89LPC9381FDH,512 功能描述:8位微控制器 -MCU 4K FL/256B RAM/ RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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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