P87C591VFA - 8-Bit 80C51 MCU w/ CAN, 16KB OTP, 44-PLCC | NXP
N.º da peça: P87C591VFA ⚠ Última compra| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $14.85 | $14,85 |
| 10 | $13.62 | $136,20 |
| 100 | $11.74 | $1.174,00 |
| 500 | $10.05 | $5.025,00 |
| 1.000 | $8.42 | $8.420,00 |
P87C591VFA Visão geral
An 8-bit microcontroller (MCU) is a programmable logic device that fetches and executes an instruction set from on-chip ROM or OTP, manipulates data in registers, and interfaces with peripherals through digital I/O. The P87C591VFA belongs to the 80C51 architecture family (8051 core) and adds a hardware CAN 2.0B controller, making it a member of the broader category: microcontroller -> embedded controller -> semiconductor IC. It is intended for systems that need deterministic serial communication on a Controller Area Network bus without an external CAN ASIC.
Key features include: 16 KB OTP program memory, 256 + 512 bytes RAM, four 8-bit I/O ports, three 16-bit timer/counters, a hardware watchdog timer, eight sources of interrupt with four priority levels, a 10-bit successive-approximation ADC with up to 6 analog inputs, and a full CAN 2.0B controller supporting both standard (11-bit) and extended (29-bit) identifiers. The 80C51 instruction set is binary-compatible with the industry-standard MCS-51, easing code reuse.
Internally, the P87C591VFA pairs an 80C51 core with the PeliCAN block from the SJA1000, an 8-channel analog MUX feeding a 10-bit SAR ADC, and dual DPTR registers for fast memory block moves. The device supports 6 clock periods per machine cycle, with power-saving Idle and Power-Down modes that drop core current to a fraction of full-activity levels, important for always-on automotive nodes.
Typical applications include automotive body controllers, CAN-based sensor nodes, industrial CANopen/DeviceNet slaves, HVAC controllers, lighting controllers, and battery management peripherals where deterministic CAN communication and AEC-Q100 temperature grading are required. Designers should note that the OTP memory variant requires a windowed EPROM or pre-programmed parts for prototyping; a flash-based derivative is the P87C591's companion part for development. Adequate decoupling (100 nF plus bulk) and a stable 5 V supply are required for reliable ADC and CAN bus operation.
Alternativas drop-in para P87C591VFA — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
P87C591VFA/00,512
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
P87C591VFB
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
P8xC591 family flash variant
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
P87C51SBAA
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
P87C591VFA Classificações máximas e características elétricas
| Core | 80C51 (8051 family) |
| Bit Width | 8-bit |
| Frequência máxima de clock | 12 MHz |
| Program Memory | 16 KB OTP |
| RAM (main) | 256 bytes |
| AUX RAM | 512 bytes |
| Data EEPROM | Not present |
| Tensão de alimentação | 5 V (4.5 V to 5.5 V) |
| Encapsulamento | 44-pin PLCC (16.59 x 16.59 mm) |
| CAN Controller | PeliCAN (SJA1000 compatible), CAN 2.0B |
| ADC | 10-bit SAR, up to 6 channels |
| Timers/Counters | Three 16-bit |
| Watchdog Timer | Yes (hardware) |
| I/O Ports | Four 8-bit (P0-P3) |
| Interrupts | 8 sources, 4 priority levels |
| Temperatura de operação | -40 C to +85 C (industrial grade per datasheet) |
| Tipo de montagem | Surface Mount (PLCC J-lead) |
| Status RoHS | Compliant |
| AEC-Q100 | Qualified |
| Lead-Free | Yes |
Configuração de pinos do P87C591VFA
| Pino 1 | P1.0/ADC0 — Port 1 bit 0 / ADC analog input 0 |
| Pino 2 | P1.1/ADC1 — Port 1 bit 1 / ADC analog input 1 |
| Pino 3 | P1.2/ADC2 — Port 1 bit 2 / ADC analog input 2 |
| Pino 4 | P1.3/ADC3 — Port 1 bit 3 / ADC analog input 3 |
| Pino 5 | P3.0/RXD0 — Port 3 bit 0 / UART0 receive |
| Pino 6 | P3.1/TXD0 — Port 3 bit 1 / UART0 transmit |
| Pino 7 | P3.2/INT0 — Port 3 bit 2 / External interrupt 0 |
| Pino 8 | P3.3/INT1 — Port 3 bit 3 / External interrupt 1 |
| Pino 9 | P3.4/T0 — Port 3 bit 4 / Timer 0 external input |
| Pino 10 | P3.5/T1 — Port 3 bit 5 / Timer 1 external input |
| Pino 11 | P3.6/WR — Port 3 bit 6 / External data write strobe |
| Pino 12 | P3.7/RD — Port 3 bit 7 / External data read strobe |
| Pino 13 | RXDCAN — CAN receive input from transceiver |
| Pino 14 | TXDCAN — CAN transmit output to transceiver |
| Pino 15 | P4.0 — Port 4 bit 0 (CAN control) |
| Pino 16 | VSS — Ground |
| Pino 17 | VCC — +5 V supply |
| Pino 18 | XTAL1 — Crystal oscillator input |
| Pino 19 | XTAL2 — Crystal oscillator output |
| Pino 20 | RESET — Active-high reset input |
| Pino 21 | P4.1 — Port 4 bit 1 (CAN control) |
| Pino 22 | EA/VPP — External access / OTP programming voltage |
| Pino 23 | ALE/PROG — Address latch enable / OTP programming clock |
| Pino 24 | PSEN — Program store enable |
| Pino 25 | P2.7/A15 — Port 2 bit 7 / Address bit 15 |
| Pino 26 | P2.6/A14 — Port 2 bit 6 / Address bit 14 |
| Pino 27 | P2.5/A13 — Port 2 bit 5 / Address bit 13 |
| Pino 28 | P2.4/A12 — Port 2 bit 4 / Address bit 12 |
| Pino 29 | P2.3/A11 — Port 2 bit 3 / Address bit 11 |
| Pino 30 | P2.2/A10 — Port 2 bit 2 / Address bit 10 |
| Pino 31 | P2.1/A9 — Port 2 bit 1 / Address bit 9 |
| Pino 32 | P2.0/A8 — Port 2 bit 0 / Address bit 8 |
| Pino 33 | P0.7/AD7 — Port 0 bit 7 / Multiplexed address-data 7 |
| Pino 34 | P0.6/AD6 — Port 0 bit 6 / Multiplexed address-data 6 |
| Pino 35 | P0.5/AD5 — Port 0 bit 5 / Multiplexed address-data 5 |
| Pino 36 | P0.4/AD4 — Port 0 bit 4 / Multiplexed address-data 4 |
| Pino 37 | P0.3/AD3 — Port 0 bit 3 / Multiplexed address-data 3 |
| Pino 38 | P0.2/AD2 — Port 0 bit 2 / Multiplexed address-data 2 |
| Pino 39 | P0.1/AD1 — Port 0 bit 1 / Multiplexed address-data 1 |
| Pino 40 | P0.0/AD0 — Port 0 bit 0 / Multiplexed address-data 0 |
| Pino 41 | P1.4/ADC4 — Port 1 bit 4 / ADC analog input 4 |
| Pino 42 | P1.5/ADC5 — Port 1 bit 5 / ADC analog input 5 |
| Pino 43 | P1.6 — Port 1 bit 6 (general I/O) |
| Pino 44 | P1.7 — Port 1 bit 7 (general I/O) |
Aplicações típicas
P87C591VFA é adequado para 6 aplicaçãos: Automotive CAN Body Controller, Industrial CANopen Slave Node, HVAC Climate Sensor Module, Automotive Lighting Controller, Battery Management CAN Peripheral, DeviceNet Communication Module.
Automotive CAN Body Controller
The P87C591VFA is well suited for automotive body controllers where AEC-Q100 reliability, deterministic CAN 2.0B communication, and a compact 44-pin PLCC footprint are required. Its integrated PeliCAN controller supports 11-bit and 29-bit identifiers at 1 Mbit/s, eliminating an external SJA1000 ASIC and reducing BOM cost. With three 16-bit timer/counters, hardware watchdog, and eight prioritized interrupts, it can manage seat/window/lock actuators, sensor polling, and diagnostic UDS services over CAN simultaneously. The 16 KB OTP holds typical body-control state machines, while the 10-bit ADC reads mirror-position or temperature sensors with adequate resolution. Designers should pair the MCU with a high-speed CAN transceiver (e.g., TJA1050) and provide 100 nF decoupling plus bulk capacitance on the 5 V rail.
Recomendado
Industrial CANopen Slave Node
In industrial CANopen slave nodes, the P87C591VFA provides an 80C51 instruction set plus a PeliCAN CAN 2.0B block that supports the CANopen object dictionary mapping layer with deterministic latency. The 12 MHz clock and 16 KB OTP are sufficient to run a CiA-401 CANopen slave stack plus application code for I/O handling. The 10-bit SAR ADC with up to 6 analog inputs is appropriate for sensor-digitizing at typical industrial resolutions. Its PLCC-44 package allows socket-mounting during field service. Designers should use the hardware watchdog to recover from bus-off or EMC-induced lockups and implement heartbeat consumers to comply with CANopen DS-301 conformance.
Recomendado
HVAC Climate Sensor Module
HVAC climate sensor modules in automotive or building-automation contexts benefit from the P87C591VFA's low-power Idle and Power-Down modes combined with on-chip ADC and CAN bus. The MCU can sleep with the ADC disabled and wake via CAN traffic or a timer to read temperature/humidity sensors, then publish measurements on the CAN bus with 11-bit or 29-bit identifiers. The 4.5-5.5 V supply range matches vehicle 5 V rails, and AEC-Q100 qualification ensures reliable operation across -40 C to +85 C. Compared with a discrete 80C51 + external CAN controller solution, the integrated approach saves PCB area and reduces quiescent current, extending sleep-mode battery life in always-on sensor nodes.
Recomendado
Automotive Lighting Controller
The P87C591VFA is a strong fit for automotive lighting controllers that drive LED headlamp modules, tail-light clusters, or interior ambient lighting via CAN commands. Its 80C51 core handles PWM generation through the timer/counters and processes CAN lighting-network messages at 500 kbit/s typical. The 256 + 512 bytes of RAM accommodate lighting state tables and fade curves, while 16 KB OTP holds the LIN-to-CAN bridging or DRL logic. Hardware watchdog reset prevents lamp lock-ups in safety-critical headlamp applications. A high-side driver IC and CAN transceiver complete the typical BOM; AEC-Q100 qualification supports under-hood or headlamp-module placement.
Recomendado
Battery Management CAN Peripheral
In Battery Management Systems (BMS) for electric or hybrid vehicles, the P87C591VFA can serve as a CAN-attached cell-monitoring peripheral that reports voltage and temperature to a central BMS controller. Its 10-bit ADC with 6 analog channels digitizes cell voltages and thermistor readings, while the integrated PeliCAN block transmits results with arbitration-free 29-bit extended identifiers to the main ECU. AEC-Q100 grading ensures operation in under-hood thermal environments, and the 5 V supply simplifies integration with isolated CAN transceivers. Designers should isolate the MCU from cell-stack voltages and rely on its hardware watchdog to recover from bus-off or brown-out events.
Recomendado
DeviceNet Communication Module
For DeviceNet communication modules (CIP-based industrial bus), the P87C591VFA's integrated CAN 2.0B controller provides the physical-layer foundation for DeviceNet's 125-500 kbit/s signaling. The 80C51 core runs DeviceNet slave stack and process-data object handling, while 16 KB OTP accommodates typical group-2-only server code. The 10-bit ADC and digital I/O can interface to discrete sensors and actuators. AEC-Q100-grade reliability is a bonus for factory-floor installations with wide temperature swings. Engineers should add an external 24 V-to-5 V regulator (since DeviceNet bus is 24 V) and a TJA1050-class CAN transceiver to complete the physical interface.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para P87C591VFA — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | P87C591VFA/00,512 | P87C591VFB | P8xC591 family flash variant | P87C51SBAA |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 44-pin PLCC | 44-pin PLCC - same | 44-pin PLCC - same | 44-pin PLCC - same | 44-pin PLCC - same |
| Core | 80C51 (8051) | 80C51 - same | 80C51 - same | 80C51 - same | 80C51 - same |
| On-chip CAN Controller | Yes (PeliCAN, CAN 2.0B) | Yes - same | Yes - same | Yes - same | No (requires external SJA1000) |
| Program Memory | 16 KB OTP | 16 KB OTP - same | 16 KB OTP - same | 16 KB Flash | 16 KB OTP |
| RAM (total) | 256 + 512 bytes | 256 + 512 bytes - same | 256 + 512 bytes - same | 256 + 512 bytes - same | 256 bytes (no AUX RAM) |
| Maximum Clock | 12 MHz | 12 MHz - same | 12 MHz - same | 12 MHz - same | 16 MHz |
| AEC-Q100 | Qualified | Qualified - same | Qualified - same | Qualified - same | Qualified |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C - same | -40 C to +125 C (automotive grade 1) | -40 C to +85 C - same | -40 C to +85 C |
| Lifecycle Status | Last-time-buy | Last-time-buy - same | Last-time-buy | Active | Last-time-buy |
Principais diferenciais
- Integrated PeliCAN CAN 2.0B controller on-chip (vs P87C51SBAA)
- AUX RAM of 512 bytes (vs P87C51SBAA)
- Flash-based development derivative available (vs P87C591VFA (OTP))
- AEC-Q100 qualification with hardware watchdog (vs Industrial-grade 80C51 + external CAN ASIC)
Notas de projeto
The P87C591VFA operates from a single 5 V supply (4.5 V to 5.5 V) per the NXP datasheet. Decouple VCC with a 100 nF ceramic capacitor placed within 10 mm of pin 17, and add a 10 uF bulk capacitor on the 5 V rail to suppress switching transients from the CAN transceiver. Avoid routing high-current switching nodes near VCC traces to minimize noise injection into the ADC reference. Use a low-dropout regulator (e.g., 7805 in TO-220 or LM2937) when powered from a 12 V automotive rail to prevent supply collapse during cranking.
Pin 22 (EA/VPP) must be tied to VCC for normal internal-OTP execution and pulled HIGH to +12.75 V during OTP programming mode. Driving VPP without the correct algorithm can damage the OTP array. Also note that ports P1.0-P1.5 double as ADC inputs and may need Schmitt-trigger-disabled by software when configured as digital I/O; verify ADC channel selection in the ADCON register before sampling to avoid channel crosstalk on a PLCC socket.
Keep the XTAL1/XTAL2 traces short and symmetric to avoid clock jitter that can corrupt CAN bit timing. Use a guard ring around the crystal and place the load capacitors (typically 22 pF) close to the crystal case. For CAN signal integrity, route RXDCAN and TXDCAN as a matched differential pair to the transceiver with 100 ohm characteristic impedance if external 5 V CAN, or rely on the internal transceiver's recommended routing for high-speed CAN.
PeliCAN bit timing at 1 Mbit/s requires oscillator accuracy within 0.5% (per Bosch CAN spec). Use a 12 MHz crystal with 30 ppm tolerance or tighter; calibrate using the on-chip timer or an external CAN analyzer. Bus-off recovery should be configured for automatic re-entry per CANopen DS-301 to comply with industrial network standards. Ensure the hardware watchdog (WDT) is enabled with a sub-100 ms timeout to recover from bus-off lock-ups.
Informações de conformidade
RoHS and REACH compliant per NXP product page. AEC-Q100 qualified for automotive applications per datasheets.com listing. Lead-free and matte-tin plating confirmed. Halogen-free status not explicitly listed on NXP product page - confirmed unknown. Conflict-minerals declaration available on NXP corporate responsibility page.
