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Home > Products > Integrated Circuits (ICs) > Specialized ICs > PCB80C51BH-2PJ514
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PCB80C51BH-2PJ514

Manufacturer Part Number:
PCB80C51BH-2PJ514
Manufacturer / Brand
PHILIPS
Part of Description:
1157
Datasheets:
Lead Free Status / RoHS Status:
RoHS Compliant
Stock Condition:
New original, 13717 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number PCB80C51BH-2PJ514
Manufacturer / Brand PHILIPS
Stock Quantity 13717 pcs Stock
Category Integrated Circuits (ICs) > Specialized ICs
Description 1157
Lead Free Status / RoHS Status: RoHS Compliant
Condition New Original Stock
Warranty 100% Perfect Functions
Lead Time 2-3days after payment.
Payment Credit Card / PayPal / Telegraphic Transfer (T/T) / Western Union
Shipping by DHL / Fedex / UPS / TNT
Port HongKong
RFQ Email Info@IC-Components.com

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

We can offer worldwide express delivery service, such as DHLor FedEx or TNT or UPS or other forwarder for shipment.

Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



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Company Name : IC COMPONENTS LTD Beneficiary Account Number : 549-100669-701
Beneficiary Bank name : Bank of Communications (Hong Kong) Ltd Beneficiary Bank Code : 382 (for local payment)
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Beneficiary Bank Address : Tsuen Wan Market Street Branch 53 Market Street, Tsuen Wan N.T., Hong Kong

Any inquires or questions, please kindly contact us Email: Info@IC-Components.com


Frequently Asked Questions

Can the PCB80C51BH-2PJ514 be directly socketed into a DIP/40 breadboard without additional hardware modifications, and what are the implications for long-term reliability in prototyping environments?
Yes, the PCB80C51BH-2PJ514 is housed in a standard DIP/40 package, which allows direct insertion into compatible DIP/40 breadboards commonly used in prototyping. However, repeated mating cycles may lead to pin wear or solder joint degradation over time. For industrial or extended-use applications, it is advisable to use a ZIF socket or surface-mount reflow soldering to minimize mechanical stress and improve thermal stability.
What voltage range should the power supply be regulated to when using the PCB80C51BH-2PJ514 in a 5V system, and how does voltage deviation affect oscillator performance?
The PCB80C51BH-2PJ514 operates within a VCC range of 4.0V to 6.0V, with optimal performance at 5.0V ±5%. Operating outside this range can destabilize the internal oscillator or cause incorrect instruction execution. Voltage drops below 4.0V may result in unreliable operation, while exceeding 6.0V risks permanent damage due to excessive gate oxide stress in the CMOS process.
Is it possible to replace the PCB80C51BH-2PJ514 with a modern 8051-compatible microcontroller like the AT89C2051, and what design trade-offs should be considered during migration?
While the AT89C2051 is electrically compatible in terms of pinout and instruction set, it lacks full compatibility with legacy peripherals and memory configurations found in the PCB80C51BH-2PJ514. Migration requires careful review of interrupt handling, timer behavior, and I/O configuration. Additionally, the newer part offers reduced power consumption but may require updated firmware to maintain timing accuracy, especially in clock-dependent applications.
How does temperature variation affect the maximum operating frequency of the PCB80C51BH-2PJ514, and what derating guidelines should be applied in automotive-grade applications?
The PCB80C51BH-2PJ514 has a specified operating temperature range of 0°C to +70°C. At elevated temperatures near 70°C, internal propagation delays increase, effectively reducing usable clock speed. For reliable operation above 60°C, a conservative derating of 10–15% on maximum frequency (typically 12 MHz) is recommended to ensure stable execution under worst-case conditions.
Can the PCB80C51BH-2PJ514 support external crystal oscillators beyond 12 MHz, and what PCB layout considerations are necessary to maintain signal integrity?
No, the PCB80C51BH-2PJ514 is designed for a maximum external clock frequency of 12 MHz. Attempting to operate with higher frequencies will result in unstable or non-functional operation. To ensure reliable oscillation, place the crystal as close as possible to XTAL1 and XTAL2 pins, use matched load capacitors (typically 22 pF), and minimize trace length with controlled impedance routing to reduce parasitic capacitance and noise pickup.
What is the recommended method for programming the PCB80C51BH-2PJ514, and are there any risks associated with in-circuit programming in production environments?
The PCB80C51BH-2PJ514 supports parallel programming via standard ISP interfaces. In production, in-circuit programming is feasible but introduces risks such as programming errors due to power fluctuations or signal noise. It is recommended to implement checksum verification, power monitoring, and fallback firmware images to ensure robustness. Alternatively, out-of-circuit programming reduces risk but increases assembly cost.
Can the I/O pins of the PCB80C51BH-2PJ514 drive capacitive loads directly, and what external circuitry is required when interfacing with LEDs or LCDs?
The PCB80C51BH-2PJ514 I/O pins are not designed to drive high-capacitive loads directly. Driving LEDs requires current-limiting resistors to prevent overcurrent; driving LCD segments typically necessitates a dedicated driver IC due to high capacitive demand. Direct drive may result in excessive power dissipation, slow switching, or degraded signal integrity, especially at higher frequencies.
Is there a functional equivalent to the PCB80C51BH-2PJ514 in NXP’s current product portfolio, and how do pin compatibility and peripheral differences impact board-level redesign efforts?
Yes, the NXP P80C51BH20 is functionally equivalent and shares the same pinout and instruction set as the PCB80C51BH-2PJ514. This makes it a suitable replacement for most legacy designs. However, verify that interrupt vector assignments and timer modes align correctly, as minor architectural differences exist in advanced variants. A simple drop-in replacement is generally feasible without major redesign.
How should decoupling capacitors be placed when using the PCB80C51BH-2PJ514 near switching power supplies, and what capacitance values are optimal for noise suppression?
Place a 0.1 µF ceramic capacitor as close as possible to the VCC and GND pins of the PCB80C51BH-2PJ514 to suppress high-frequency noise. For systems with significant transient currents, add a bulk capacitor (e.g., 10 µF tantalum or electrolytic) near the power entry point. This combination minimizes ground bounce and ensures stable voltage delivery during rapid I/O transitions.
Can the PCB80C51BH-2PJ514 be used in battery-powered devices with dynamic power management, and what techniques reduce active power consumption?
Yes, the PCB80C51BH-2PJ514 supports power reduction through software-controlled idle and power-down modes. In idle mode, the CPU clock stops while peripherals remain active; in power-down mode, only the oscillator continues. To minimize active power, disable unused peripherals, reduce clock frequency where possible, and use sleep modes strategically. Note that wake-up latency increases in deeper sleep states, affecting real-time responsiveness.

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PCB80C51BH-2PJ514

PHILIPS

1157

In Stock: 13717

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