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NXP Semiconductors P87LPC767FD,512
- Part No.:
- P87LPC767FD,512
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
P87LPC767FD,512.pdf
- Description:
- IC MCU 8BIT 4KB OTP 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,597
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Product details
Overview
P87LPC767FD,512 from NXP Semiconductors (formerly Philips) is a 20-pin, low-power, OTP-based 80C51-compatible microcontroller with integrated 4-kbyte EPROM, 128-byte RAM, four-channel 8-bit A/D converter, dual analog comparators, I²C port, UART, and watchdog timer - designed for cost-sensitive industrial control and sensor interface applications operating from 2.7 V to 6.0 V.
For engineers reviewing the P87LPC767FD,512 datasheet, P87LPC767FD,512 pinout, P87LPC767FD,512 application, or P87LPC767FD,512 equivalent, key selection considerations include its 20 MHz max CPU speed at 4.5–6.0 V, on-chip RC oscillator option eliminating external crystals, programmable port output modes (quasi-bidirectional/open-drain/push-pull), and 1 µA typical Power Down current.
Technical Context
The P87LPC767FD,512 implements an accelerated 80C51 core executing instructions in 300–600 ns at 20 MHz, with dual 16-bit timers supporting overflow toggle outputs and UART baud rate generation via Timer 1. Its analog subsystem integrates four A/D input channels (AD0–AD3), two independent comparators (CMP1/CMP2) with selectable reference (CMPREF), and configurable Schmitt-trigger inputs.
Power management includes Brownout Detection (selectable 2.5 V or 3.5 V threshold), Power-On Reset, Idle and Power Down modes, and a fully on-chip watchdog oscillator enabling oscillator fail detection without external components. The device supports serial EPROM programming and features 32-byte customer code space for device serialization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Accelerated 80C51 architecture; executes all instructions except MUL/DIV in 300–600 ns at 20 MHz |
| Memory | 4 K-byte on-chip OTP EPROM code memory + 128-byte RAM + 32-byte customer code space |
| A/D Converter | Four-channel, 8-bit successive-approximation ADC; 9.3 µs conversion time at fOSC = 20 MHz |
| Operating Voltage | 2.7 V to 6.0 V digital supply range; supports wide-input industrial power rails |
| Power Modes | Idle mode (reduced current) and Power Down mode (1 µA typical); wakeup via low-level interrupt on any I/O pin |
| Oscillator Options | Configurable on-chip RC oscillator, high/medium/low-frequency crystal/resonator, or external clock input |
| I/O Capability | 15–18 user-configurable I/O pins; LED drive up to 20 mA per pin; controlled slew rate (~10 ns ramp) for EMI reduction |
Pinout & Package
Package: SO20 - plastic small outline package, 20 leads, 7.5 mm body width (SOT163-1), rated for –40 °C to +85 °C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CMP2/P0.0) | Comparator 2 output / Port 0 bit 0 | Dedicated comparator output or general-purpose I/O; supports keypad interrupt |
| 13–20 (P0.1–P0.7) | A/D inputs, comparator inputs, timer/counters | P0.3–P0.6 serve as AD0–AD3; P0.5 = CMPREF (A/D ref/comparator negative input); P0.7 = T1 external count input |
| 2–4, 8–12 (P1.0–P1.7) | UART, I²C, interrupts, timer inputs | P1.0/TxD and P1.1/RxD form full-duplex UART; P1.2/SCL and P1.3/SDA support I²C bus; P1.4/INT1 and P1.3/INT0 are external interrupt sources |
| 6–7 (P2.0–P2.1) | Oscillator/clock interface | P2.1/X1 = oscillator input; P2.0/X2 = oscillator output or CLKOUT (CPU clock ÷6) when using RC/ext clock |
| 5 (VSS) | Ground reference | 0 V return path for digital and analog circuits; separate analog/digital ground not required |
| 15 (VDD) | Power supply | Single 2.7–6.0 V supply powers entire IC including A/D, comparators, and I/O drivers |
Key Features
| Feature | Design Value |
|---|---|
| On-chip RC oscillator | Eliminates need for external crystal/resonator; enables rapid prototyping and BOM simplification |
| Programmable port output modes | Per-pin configuration of quasi-bidirectional, open-drain (I²C-compliant), or push-pull outputs |
| Dual analog comparators | Independent CMP1/CMP2 with selectable reference (CMPREF) and interrupt capability for threshold monitoring |
| Keypad interrupt (KBI) | Eight dedicated inputs on Port 0 enable matrix keypad scanning without CPU polling overhead |
| Low-voltage reset & brownout detection | Selectable 2.5 V or 3.5 V reset threshold ensures graceful shutdown during power failure |
Applications
| Industrial Sensor Interface | Smart Metering Front-End |
|---|---|
Use Scenario: Monitoring temperature, pressure, and humidity sensors in factory automation panels. IC Role / Device Role / Timing Role: Central controller acquiring analog sensor data via 8-bit A/D, conditioning signals with analog comparators, and transmitting results over UART/I²C. Use Value: Integrated A/D and comparators reduce external component count; 1 µA Power Down current extends battery life in wireless sensor nodes. | Use Scenario: Reading utility meter transducers (e.g., flow, current) and managing tamper-detection logic. IC Role / Device Role / Timing Role: Low-cost, single-chip front-end performing analog signal acquisition, threshold-based alarm triggering, and secure data logging. Use Value: On-chip watchdog and brownout detection ensure reliable operation during grid voltage fluctuations; OTP memory protects firmware IP. |
| LED-Based Control Panel | Embedded Appliance Controller |
Use Scenario: Driving multi-segment LED displays and responding to button presses in HVAC or vending machine UIs. IC Role / Device Role / Timing Role: Keypad interrupt handler and high-current (20 mA) LED driver with programmable slew rate for EMI control. Use Value: Direct LED drive eliminates external drivers; KBI reduces CPU load during key scanning; SO20 package enables compact PCB layout. | Use Scenario: Managing motor timing, safety interlocks, and user interface in washing machines or microwaves. IC Role / Device Role / Timing Role: Real-time controller executing safety-critical sequences using UART for diagnostics and internal timers for precise cycle timing. Use Value: Accelerated 80C51 core delivers deterministic response; dual timers support simultaneous PWM and timeout functions without external ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PCA9306D,118 | I²C level shifter only - no MCU functionality, no A/D, no program memory | Used solely for voltage translation between I²C buses; cannot replace P87LPC767FD,512 as main controller | Select only if system already contains a host MCU and requires isolated I²C voltage adaptation |
| ATMEGA8A-AU | AVR core, 8 K-byte Flash (not OTP), 6-channel 10-bit A/D, no built-in I²C master, higher pin count (28-pin) | Requires external I²C software implementation; larger footprint; Flash reprogrammability vs OTP security | Choose when field firmware updates are required and higher-resolution A/D is needed, accepting larger board area |
Compared with PCA9306D,118 and ATMEGA8A-AU, the P87LPC767FD,512 uniquely combines OTP security, integrated I²C hardware, 20-pin SO packaging, and sub-µA Power Down current - making it optimal for fixed-function, cost-constrained embedded controllers where code integrity and minimal external components are critical.
Availability
P87LPC767FD,512 is available at Aetrix Electronics and suitable for industrial sensor interface, smart metering front-end, and LED-based control panel applications requiring stable component supply across extended temperature ranges (–40 °C to +85 °C).
Supply support for P87LPC767FD,512 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 leader delivering high-performance mixed-signal and standard product solutions for automotive, industrial, and IoT markets.
The P87LPC767FD,512 belongs to NXP's legacy LPC700 family of low-pin-count 80C51 derivatives, engineered specifically for cost-sensitive, space-constrained embedded systems needing integrated analog peripherals and robust power management.
FAQ
What is the maximum operating frequency of the P87LPC767FD,512?
The P87LPC767FD,512 operates at up to 20 MHz when supplied at 4.5–6.0 V, and up to 10 MHz at 2.7–6.0 V. Its accelerated 80C51 core achieves instruction cycle times of 300–600 ns (excluding MUL/DIV), enabling real-time response in time-critical embedded tasks. This performance is confirmed in the Philips Semiconductor product data sheet dated 2002 Mar 25.
Does the P87LPC767FD,512 support in-system programming?
No, the P87LPC767FD,512 uses 4-kbyte One-Time Programmable (OTP) EPROM, which allows programming only once during manufacturing or initial setup. It does not support in-system or field reprogramming. Serial EPROM programming is supported during production, but subsequent modifications require replacement of the P87LPC767FD,512 unit.
How many analog input channels does the A/D converter in the P87LPC767FD,512 support?
The P87LPC767FD,512 integrates a four-channel, 8-bit successive-approximation A/D converter. Inputs AD0 through AD3 map directly to P0.3, P0.4, P0.5, and P0.6 respectively. Conversion time is 9.3 µs at fOSC = 20 MHz, and the reference voltage is internally derived or externally applied via the CMPREF pin.
Can the P87LPC767FD,512 operate without an external crystal?
Yes, the P87LPC767FD,512 supports an on-chip RC oscillator option configured via EPROM bits, allowing full operation with no external timing components. This eliminates crystal cost and board space, making the P87LPC767FD,512 ideal for ultra-low-BOM designs where ±10% frequency tolerance is acceptable.
What are the power supply requirements for the P87LPC767FD,512?
The P87LPC767FD,512 requires a single 2.7 V to 6.0 V DC supply on VDD (pin 15) with VSS (pin 5) as ground reference. It supports operation across this full range in both active and reduced-power modes, with typical Power Down current of 1 µA - verified in the official Philips product data under DC Electrical Characteristics.
P87LPC767FD,512 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Series:
- LPC700
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- 8051
- Core Size:
- 8-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, UART/USART
- Peripherals:
- Brown-out Detect/Reset, LED, POR, WDT
- Number of I/O:
- 18
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- OTP
- EEPROM Size:
- -
- RAM Size:
- 128 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 6V
- Data Converters:
- A/D 4x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
P87LPC767FD,512 FAQ
1.How can I place an order for P87LPC767FD,512 through Aetrix?
Please submit a Request for Quotation (RFQ) for P87LPC767FD,512 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P87LPC767FD,512 reliable?
The price and inventory of P87LPC767FD,512 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P87LPC767FD,512 is usually 5 days.
3.What payment methods are accepted for P87LPC767FD,512?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P87LPC767FD,512 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P87LPC767FD,512?
P87LPC767FD,512 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P87LPC767FD,512 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P87LPC767FD,512?
For technical support, including P87LPC767FD,512 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P87LPC767FD,512 requirements.
6.How does Aetrix verify that P87LPC767FD,512 is sourced from the original manufacturer or authorized distributors?
All P87LPC767FD,512 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P87LPC767FD,512 meets industry standards.
7.What is the process for return or replacement of P87LPC767FD,512?
All P87LPC767FD,512 units undergo pre-shipment inspection (PSI). If there is an issue with P87LPC767FD,512, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P87LPC767FD,512 part is unused and in its original packaging.
Return procedure for P87LPC767FD,512:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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