P89LPC9103FTK NXP Semiconductors, P89LPC9103FTK Datasheet - Page 43

• Manufacturer Part Number: P89LPC9103FTK
• Description: MCU 8BIT 80C51 1K FLASH, HVSON-10
• Manufacturer: NXP Semiconductors

Specifications of P89LPC9103FTK

• Controller Family/series: (8051) 8052
• Core Size: 8bit
• No. Of I/o's: 8
• Program Memory Size: 1KB
• Ram Memory Size: 128Byte
• Cpu Speed: 18MHz
• Oscillator Type: Internal Only
• No. Of Timers: 4
• No. Of Pwm: RoHS Compliant

NXP Semiconductors
9. A/D Converter
P89LPC9102_9103_9107_3
Product data sheet
9.1 General description
9.2 Features
The P89LPC9102/9103/9107 has an 8-bit, 4-channel multiplexed successive
approximation analog-to-digital converter. The A/D consists of a 4-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 Successive Approximation Register (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. A block diagram of the A/D converter is shown in
Figure
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8-bit, 4-channel multiplexed input, successive approximation A/D converter
Four result registers
Six operating modes
Two conversion start modes
8-bit conversion time of
Interrupt or polled operation
Boundary limits interrupt
DAC output to a port pin with high output impedance
Clock divider
Power-down mode
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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
Timer triggered start
Start immediately
18.
Rev. 03 — 10 July 2007
8-bit microcontrollers with two-clock accelerated 80C51 core
3.9 s at an ADC clock of 3.3 MHz
P89LPC9102/9103/9107
© NXP B.V. 2007. All rights reserved.
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