P89LPC9103 datasheet(2/58 Pages) PHILIPS

2 / 58 page

9397 750 14655

Product data sheet

Rev. 02 — 11 April 2005

2 of 58

Philips Semiconductors

P89LPC9102/9103/9107

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

s In-Application Programming (IAP-Lite) and byte erase allows code memory to be used

for non-volatile data storage.

s Serial Flash ICP allows simple production coding with commercial EPROM

programmers. Flash security bits prevent reading of sensitive application programs.

s Watchdog timer with separate on-chip oscillator, requiring no external components.

The watchdog prescaler is selectable from eight values.

s Low voltage reset (Brownout detect) allows a graceful system shutdown when power

fails. May optionally be conﬁgured as an interrupt.

s Idle mode and two different reduced power Power-down modes. Improved wake-up

from Power-down mode (a LOW interrupt input starts execution). Typical Power-down

mode current is less than 1

µA (total Power-down mode with voltage comparators

disabled).

s Active-LOW reset. On-chip power-on reset allows operation without external reset

components. A reset counter and reset glitch suppression circuitry prevent spurious

and incomplete resets. A software reset function is also available.

s Programmable port output conﬁguration options: quasi-bidirectional, open drain,

push-pull, input-only.

s Port ‘input pattern match’ detect. Port 0 may generate an interrupt when the value of

the pins match or do not match a programmable pattern.

s LED drive capability (20 mA) on all port pins. A maximum limit is speciﬁed for the

entire chip.

s Controlled slew rate port outputs to reduce EMI. Outputs have approximately 10 ns

minimum ramp times.

s Only power and ground connections are required to operate the

P89LPC9102/9103/9107 when internal reset option is selected.

s Four interrupt priority levels.

s Two keypad interrupt inputs.

s Second data pointer.

s External clock input.

s Clock output (P89LPC9102/9107).

s Schmitt trigger port inputs.

s Emulation support.

Product comparison overview

Table 1 highlights the differences between these two devices. For a complete list of device

features, please see Section 2 “Features”.

Table 1:

Product comparison overview

Type number

UART

T0 toggle/PWM

T1 toggle/PWM

CLKOUT

P89LPC9102

P89LPC9103

P89LPC9107

XXXX

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