參數(shù)資料
型號： P89LPC938FA
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 8 kB 3 V byte-erasable Flash with 10-bit A/D converter
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)： 46/68頁
文件大?。?/td> 318K
代理商： P89LPC938FA
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(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P89LPC938FA,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(fēng)格:SMD/SMT
P89LPC938FA129 制造商:NXP Semiconductors 功能描述:P89LPC938FA/PLCC28/TUBESM//
P89LPC938FDH 制造商:NXP Semiconductors 功能描述:MCU 8BIT 80C51 8K FLASH TSSOP28 制造商:NXP Semiconductors 功能描述:MCU 8BIT 80C51 8K FLASH, TSSOP28 制造商:NXP Semiconductors 功能描述:MCU 8BIT 80C51 8K FLASH, TSSOP28, Controller Family/Series:(8051) 8052, Core Siz
P89LPC938FDH,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(fēng)格:SMD/SMT
P89LPC938FDH529 制造商:NXP Semiconductors 功能描述:IC 8BIT MCU 80C51 18MHZ TSSOP-28
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