P89LPC985 datasheet(59/85 Pages) NXP

Part #	P89LPC985

Description	8-bit microcontroller with accelerated two-clock 80C51 core, 4 kB/8 kB wide-voltage byte-erasable flash with 10-bit ADC

PDF	85 Pages

Scroll/Zoom	100%

Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

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59 / 85 page

P89LPC980_982_983_985_2

Preliminary data sheet

Rev. 02 — 8 February 2010

59 of 85

NXP Semiconductors

P89LPC980/982/983/985

8-bit microcontroller with accelerated two-clock 80C51 core

The ADC consists of an 8-input multiplexer which feeds a sample-and-hold circuit

providing an input signal to 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

10-bit, 8-channel multiplexed input, successive approximation ADCs. (10-bit,

4-channel on P89LPC983)

Eight result register pairs.

Six operating modes:

Fixed channel, single conversion mode.

Fixed channel, continuous conversion mode.

Auto scan, single conversion mode.

Auto scan, continuous conversion mode.

Dual channel, continuous conversion mode.

Single step mode.

Three conversion start modes:

Timer triggered start.

Start immediately.

Edge triggered.

10-bit conversion time of 4

μs at an A/D clock of 9.0 MHz.

Interrupt or polled operation.

Boundary limits interrupt.

Clock divider.

Power-down mode.

P89LPC985 Datasheet(PDF) 59 Page - NXP Semiconductors