Single-Chip Microcontroller IC P89lpc915fdh Integrated Circuit

Product Description

8-bit microcontrollers with accelerated two-clock 80C51 core 2 kB 3 V Flash with 8-bit A/D converter

Description

The P89LPC915/916/917 are single-chip microcontrollers in low-cost 14-pin and

16-pin packages, based on a high performance processor architecture that executes

instructions in two to four clocks, six times the rate of standard 80C51 devices. Many

system level functions have been incorporated into the P89LPC915/916/917 in order

to reduce component count, board space, and system cost.

Features

2 kB byte-erasable Flash code memory organized into 256-byte sectors and

16-byte pages. Single-byte erasing allows any byte(s) to be used as non-volatile

data storage.

256-byte RAM data memory.

Two 16-bit counter/timers. Timer 0 (and Timer 1 - P89LPC917) may be configured

to toggle a port output upon timer overflow or to become a PWM output.

23-bit system timer that can also be used as a Real-Time clock.

4-input multiplexed 8-bit A/D converter/single DAC output. Two analog

comparators with selectable reference.

Enhanced UART with fractional baud rate generator, break detect, framing error

detection, automatic address detection and versatile interrupt capabilities.

SPI communication port (P89LPC916).

Internal RC oscillator option allows operation without external oscillator

components. The RC oscillator (factory calibrated to ±1 %) option is selectable

and fine tunable.

2.4 V to 3.6 V VDD operating range. I/O pins are 5 V tolerant (may be pulled up or

driven to 5.5 V).

Up to 14 I/O pins when using internal oscillator and reset options (P89LPC916,

P89LPC917).

Additional Features

• 14-pin (P89LPC915) and 16-pin (P89LPC916, P89LPC917) TSSOP packages.

• A high performance 80C51 CPU provides instruction cycle times of 111 ns to

222 ns for all instructions except multiply and divide when executing at 18 MHz.

This is six times the performance of the standard 80C51 running at the same clock

frequency. A lower clock frequency for the same performance results in power

savings and reduced EMI.

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

used for non-volatile data storage.

• Serial Flash In-Circuit Programming (ICP) allows simple production coding with

commercial EPROM programmers. Flash security bits prevent reading of sensitive

application programs.

• Watchdog timer with separate on-chip oscillator, requiring no external

components. The Watchdog prescaler is selectable from 8 values.

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

power fails. May optionally be configured as an interrupt.

• 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).

• 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.

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

push-pull, input-only.

• 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.

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

entire chip.

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

minimum ramp times.

• Only power and ground connections are required to operate the

P89LPC915/916/917 when internal reset option is selected.

• Four interrupt priority levels.

• Five (P89LPC916), six (P89LPC915), or seven (P89LPC917) keypad interrupt

inputs.

• Second data pointer.

• Schmitt trigger port inputs.

• Emulation support.