P89LPC9151FDH,129

Microcontrollers Overview

The P89LPC9151FDH,129 is an 8-bit microcontroller based on the NXP 89LP family. It features a high-performance accelerated two-clock 80C51 core operating up to 18 MHz. The device includes 2 kB of byte-erasable flash code memory and 256 bytes of RAM data memory. Integrated peripherals include a multiplexed 8-bit ADC with single DAC output, two analog comparators, two 16-bit counter/timers, a 23-bit system timer, enhanced UART, and a 400 kHz I2C-bus port. It operates within a 2.4 V to 3.6 V supply range in a TSSOP14 package.

Microcontrollers Feature Summary

• Accelerated instruction execution providing six times the performance of standard 80C51 devices at equivalent clock frequencies.
• Integrated system-level functions including power-on reset, brownout detection, and watchdog timer to reduce external component count.
• Configurable I/O ports supporting quasi-bidirectional, open drain, push-pull, and input-only modes with Schmitt trigger inputs.
• On-chip RC oscillator options allowing operation without external oscillator components.

Microcontrollers Applications

• Battery-powered portable devices requiring low voltage operation
• Industrial sensor nodes utilizing internal temperature monitoring or analog signal acquisition
• Simple serial communication interfaces using UART or I2C protocols

Microcontrollers Procurement Notes

Verify the specific ordering suffix

Microcontrollers Selection Notes

Select this component for designs requiring a compact 14-pin solution with integrated analog capabilities. Ensure the application fits within the 2.4 V to 3.6 V operating voltage range. Consider the pin multiplexing constraints when designing the schematic, particularly regarding the shared functions of Port 0 pins for ADC, comparators, and keypad interrupts.

Microcontrollers Part Context

This part belongs to the P89LPC91x/916x/917x series of 8-bit microcontrollers. While sharing the same core architecture and peripheral set, the P89LPC9151 differs from its siblings by offering a 14-pin TSSOP package with fewer general-purpose I/O pins compared to the 16-pin variants. It retains full feature parity regarding memory size and analog peripherals.

Microcontrollers Replacement Considerations

P89LPC9161FDH,129

Microcontrollers FAQ

Does the P89LPC9151 support SPI communication?

No, the P89LPC9151 does not include an SPI communication port. This feature is available only in the P89LPC9161 variant.

What is the maximum operating frequency of the internal RC oscillator?

The configurable on-chip oscillator supports frequencies ranging from 20 kHz up to the maximum operating frequency of 18 MHz.