P89LPC933 datasheet(53/75 Pages) PHILIPS

Part #	P89LPC933

Description	8-bit microcontroller with accelerated two-clock 80C51 core 4 kB/8 kB/16 kB 3 V byte-erasable Flash with 8-bit ADCs

PDF	75 Pages

Scroll/Zoom	100%

Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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53 / 75 page

9397 750 15113

Product data sheet

Rev. 06 — 20 June 2005

53 of 75

Philips Semiconductors

P89LPC933/934/935/936

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

x Start immediately.

x Edge triggered.

x Dual start immediately (P89LPC935/936).

s 8-bit conversion time of

≥3.9 µs at an A/D clock of 3.3 MHz.

s Interrupt or polled operation.

s Boundary limits interrupt.

s DAC output to a port pin with high output impedance.

s Clock divider.

s Power-down mode.

9.3 Block diagram

9.4 A/D operating modes

9.4.1 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 which corresponds to the selected

input channel. An interrupt, if enabled, will be generated after the conversion completes.

Fig 23. ADC block diagram

–

comp

DAC1

SAR

INPUT

MUX

CONTROL

LOGIC

–

comp

DAC0

SAR

INPUT

MUX

CCLK

002aab080

P89LPC933 Datasheet(PDF) 53 Page - NXP Semiconductors