P89LPC930 datasheet(2/55 Pages) PHILIPS

2 / 55 page

Philips Semiconductors

P89LPC930/931

8-bit microcontrollers with two-clock 80C51 core

Product data

Rev. 05 — 15 December 2004

2 of 55

9397 750 14472

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

power fails. May optionally be conﬁgured as an interrupt.

s Oscillator Fail Detect. The watchdog timer has a separate fully on-chip oscillator

allowing it to perform an oscillator fail detect function.

s Conﬁgurable on-chip oscillator with frequency range and RC oscillator options

(selected by user programmed Flash conﬁguration bits). The RC oscillator (factory

calibrated to

±1 %) option allows operation without external oscillator

components. Oscillator options support frequencies from 20 kHz to the maximum

operating frequency of 18 MHz. The RC oscillator option is selectable and ﬁne

tunable.

s Programmable port output conﬁguration options:

x Quasi-bidirectional

x Open drain

x Push-pull

x 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 Second data pointer.

s Schmitt trigger port inputs.

s LED drive capability (20 mA) on all port pins. Maximum combined I/O current of

100 mA.

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

10 ns minimum ramp times.

s 23 I/O pins minimum (28-pin package). Up to 26 I/O pins while using on-chip

oscillator and reset options.

s Only power and ground connections are required to operate the P89LPC930/931

using on-chip oscillator and on-chip reset options.

s Serial Flash programming allows in-circuit production coding. Flash security bits

prevent reading of sensitive programs.

In-Application Programming of the Flash code memory. This allows changing the

code in a running application.

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

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

current is 1

µA (total Power-down with voltage comparators disabled).

s 28-pin TSSOP package.

s Emulation support.

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