NXP Semiconductors P87LPC760BDH,118

Overview

P87LPC760BDH,118 from NXP Semiconductors (formerly Philips) is a 14-pin, low-power, OTP-based 80C51-compatible microcontroller with 1 kbyte EPROM, 128 byte RAM, one analog comparator, full-duplex UART, and I²C interface - designed for cost-sensitive embedded control in battery-powered sensors and simple industrial I/O modules.

For engineers reviewing the P87LPC760BDH,118 datasheet, P87LPC760BDH,118 pinout, P87LPC760BDH,118 application, or P87LPC760BDH,118 equivalent, key selection criteria include its 2.7–6.0 V operating range, on-chip RC oscillator eliminating external crystals, programmable port output modes (quasi-bidirectional/open-drain/push-pull), LED drive capability (20 mA), and dual power-reduction modes (Idle/Power Down).

Technical Context

The P87LPC760BDH,118 implements an accelerated 80C51 core executing instructions in 6 or 12 clock cycles (vs. standard 12/24), delivering up to 20 MHz operation at 4.5–6.0 V and 10 MHz at 2.7–6.0 V. Its CPU clock is configurable via CLKR and DIVM registers to match timing requirements across voltage domains.

It integrates mixed-signal peripherals including a single analog comparator with selectable reference (CMPREF), dedicated comparator pins (CIN1A/CIN1B/CMP1), and hardware-supported I²C master/slave operation using SCL/T0 and SDA/INT0 pins - all managed through dedicated SFRs (I2CON, I2CFG, I2DAT) without CPU intervention during transfers.

Key Specifications

Pinout & Package

Package: 14-pin TSSOP (SOT402-1), 4.4 mm body width, surface-mount compatible.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with AT89LP2052-20PU and STM8S003F3P6, the P87LPC760BDH,118 delivers optimal integration for ultra-low-cost, low-pin-count systems where comparator-based event detection and I²C slave functionality are required without Flash reprogramming or high-speed processing.

Availability

P87LPC760BDH,118 is available at Aetrix Electronics and suitable for smart sensor nodes, industrial I/O modules, consumer appliance controls, and portable medical diagnostics requiring stable component supply and long-term manufacturability.

Supply support for P87LPC760BDH,118 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company formed from the spin-off of Philips Semiconductors in 2006, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The P87LPC760BDH,118 belongs to NXP's legacy LPC700 family of low-pin-count 80C51 microcontrollers, designed specifically for cost-optimized, space-constrained embedded control applications with integrated analog and communication peripherals.

FAQ

What is the maximum operating frequency of the P87LPC760BDH,118 and under what conditions?

The P87LPC760BDH,118 operates up to 20 MHz when VDD is 4.5–6.0 V, and up to 10 MHz when VDD is 2.7–6.0 V. This is enabled by its accelerated 80C51 core executing instructions in 6 oscillator cycles. The P87LPC760BDH,118 achieves this without external clock multiplication - the frequency is directly tied to the selected oscillator source (crystal, RC, or external clock) and voltage compliance.

Does the P87LPC760BDH,118 support in-system programming (ISP) or require external EPROM programmers?

The P87LPC760BDH,118 uses 1 kbyte one-time-programmable (OTP) EPROM and does not support in-system programming. It requires parallel EPROM programming via a dedicated programmer that applies VPP (12.5 V) to the VDD pin during programming. The P87LPC760BDH,118 lacks ISP circuitry or bootloader - firmware must be finalized before soldering.

How is the analog comparator in the P87LPC760BDH,118 configured for threshold detection?

The P87LPC760BDH,118 comparator uses P0.4 (CIN1A) and P0.3 (CIN1B) as positive inputs and P0.5 (CMPREF) as the negative reference input. Configuration is done via the CMP1 SFR (address ACh), where CE1 enables the comparator and CO1 selects output polarity. The P87LPC760BDH,118 comparator output (CMP1) is routed to an interrupt flag and can trigger wake-up from Power Down mode.

Can the P87LPC760BDH,118 operate without any external passive components?

Yes - the P87LPC760BDH,118 can operate with only VDD and VSS connections when configured for on-chip RC oscillator and internal power-on reset. Its integrated RC oscillator, watchdog timer with independent oscillator, and programmable port configurations eliminate the need for external crystals, capacitors, or reset ICs - making it ideal for minimal-component designs.

What I/O configuration options are available on the P87LPC760BDH,118 and how are they controlled?

The P87LPC760BDH,118 supports quasi-bidirectional, open-drain, push-pull, and input-only modes per pin, controlled via Port Mode registers (P0M1/P0M2, P1M1/P1M2, P2M1/P2M2). For example, setting P0M1.6=1 and P0M2.6=0 configures P0.6 as push-pull output. These SFRs allow dynamic reconfiguration during runtime - the P87LPC760BDH,118 does not require hardware jumpers or strapping pins.