參數(shù)資料
型號(hào): P89LPC985FDH,529
廠商: NXP Semiconductors
文件頁(yè)數(shù): 57/85頁(yè)
文件大?。?/td> 0K
描述: IC 80C51 MCU KB FLASH 28TSSOP
標(biāo)準(zhǔn)包裝: 51
系列: LPC900
核心處理器: 8051
芯體尺寸: 8-位
速度: 18MHz
連通性: I²C,SPI,UART/USART
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 26
程序存儲(chǔ)器容量: 8KB(8K x 8)
程序存儲(chǔ)器類型: 閃存
RAM 容量: 512 x 8
電壓 - 電源 (Vcc/Vdd): 2.4 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 28-TSSOP(0.173",4.40mm 寬)
包裝: 管件
P89LPC980_982_983_985
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 4 — 15 June 2010
60 of 85
NXP Semiconductors
P89LPC980/982/983/985
8-bit microcontroller with accelerated two-clock 80C51 core
8.3 Block diagram
8.4 ADC operating modes
8.4.1 Fixed channel, single conversion mode
A single input channel can be selected for conversion. A single conversion will be
performed and the result placed in the result register pair which corresponds to the
selected input channel. An interrupt, if enabled, will be generated after the conversion
completes.
8.4.2 Fixed channel, continuous conversion mode
A single input channel can be selected for continuous conversion. The results of the
conversions will be sequentially placed in the eight result register. The user may select
whether an interrupt can be generated after every four or every eight conversions.
Additional conversion results will again cycle through the result register pairs, overwriting
the previous results. Continuous conversions continue until terminated by the user.
8.4.3 Auto scan, single conversion mode
Any combination of the eight input channels can be selected for conversion. A single
conversion of each selected input will be performed and the result placed in the result
register pair which corresponds to the selected input channel. The user may select
whether an interrupt, if enabled, will be generated after either the first four conversions
have occurred or all selected channels have been converted. If the user selects to
generate an interrupt after the four input channels have been converted, a second
interrupt will be generated after the remaining input channels have been converted. If only
a single channel is selected this is equivalent to single channel, single conversion mode.
(1) Only on the P89LPC985.
Fig 20. ADC block diagram
comp
AD00
8
CONTROL
LOGIC
AD01
AD02
AD03
AD04(1)
AD05(1)
AD06(1)
AD07(1)
SAR
input MUX
002aae543
DAC0
CCLK
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