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Home > Products > Integrated Circuits (ICs) > Specialized ICs > F82C411
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F82C411

Manufacturer Part Number:
F82C411
Manufacturer / Brand
CHIPS
Part of Description:
CHIPS QFP
Datasheets:
Lead Free Status / RoHS Status:
RoHS Compliant
Stock Condition:
New original, 16735 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number F82C411
Manufacturer / Brand CHIPS
Stock Quantity 16735 pcs Stock
Category Integrated Circuits (ICs) > Specialized ICs
Description CHIPS QFP
Lead Free Status / RoHS Status: RoHS Compliant
RFQ F82C411 Datasheets F82C411 Details PDF
F82C411 Details PDF for FR.pdf
F82C411 Details PDF for KR.pdf
F82C411 Details PDF for DE.pdf
F82C411 Details PDF for IT.pdf
F82C411 Details PDF for ES.pdf
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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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 F82C411 be used as a drop-in replacement for the Intel 82C411 in legacy embedded systems without requiring firmware changes?
The F82C411 from CHIPS is designed to be functionally compatible with the Intel 82C411, including register map, pinout, and timing characteristics, making it a viable drop-in replacement in most legacy designs. However, minor differences in power-on reset behavior and I/O leakage current may require verification of initialization routines in firmware, especially in systems with tight timing margins or low-power states.
What are the key electrical differences between the F82C411 and the original Intel 82C411 that could affect signal integrity in high-noise industrial environments?
While the F82C411 maintains similar I/O voltage thresholds and drive strength to the Intel version, it exhibits slightly higher output transition times on certain GPIO pins under capacitive loads above 50 pF. In high-noise environments, this may necessitate additional series termination resistors or improved PCB layout practices to maintain signal integrity, particularly on clock and interrupt lines.
Is the F82C411 suitable for use in 5V-only systems where the Intel 82C411 was previously specified, and what are the implications for interfacing with 3.3V peripherals?
The F82C411 operates reliably at 5V VCC and maintains TTL-compatible input thresholds, making it suitable for 5V-only systems. However, its outputs are not 3.3V tolerant when powered at 5V. Direct connection to 3.3V logic without level shifting may risk damage over time due to overvoltage on input protection diodes; use of a bidirectional voltage translator is recommended for mixed-voltage designs.
How does the F82C411 handle power sequencing requirements compared to the Intel 82C411, and are there any known issues during brownout or rapid power cycling?
The F82C411 includes an internal power-on reset circuit with a typical threshold of 2.8V, similar to the Intel part, but exhibits a slightly longer reset assertion delay during power-up. In systems with slow-rising power supplies or frequent brownouts, this may require external reset supervision circuitry to ensure reliable initialization, especially when interfacing with microcontrollers that have faster boot sequences.
Can the F82C411 support real-time clock (RTC) functionality when paired with an external 32.768 kHz crystal, and what are the loading capacitance requirements?
The F82C411 does not integrate an RTC module and lacks dedicated oscillator pins for a 32.768 kHz crystal. Attempting to use general-purpose I/O pins for this purpose will result in inaccurate timekeeping due to lack of low-power modes and precise load matching. For RTC functionality, an external RTC IC such as the DS1307 or MCP7940N should be used instead.
What are the thermal and long-term reliability considerations when using the F82C411 in enclosed industrial control panels operating at ambient temperatures above 70°C?
The F82C411 is rated for operation up to 85°C junction temperature, but sustained operation in high-ambient environments (>70°C) without adequate airflow may reduce long-term reliability due to increased electromigration risk in the QFP package leads. Ensure proper thermal derating and avoid mounting near high-power components; conformal coating is recommended in humid or corrosive environments to prevent moisture ingress.
Are there known compatibility issues when migrating from the AMD Am486DE series companion chipsets to the F82C411 in 486-based embedded designs?
The F82C411 is primarily intended for Intel 486 and compatible CPU environments and may exhibit timing mismatches with AMD-specific glue logic or cache control signals in Am486DE systems. Specifically, differences in bus hold acknowledgment timing and cache enable signal polarity may require modification of the chip select decoding logic or insertion of delay buffers on the local bus.
What configuration options are available on the F82C411 for enabling or disabling integrated peripherals, and how are they set during system initialization?
The F82C411 allows software configuration of integrated peripherals such as the parallel port and serial UART through internal control registers accessible via the system I/O space. These registers must be programmed during BIOS or bootloader initialization; incorrect configuration may result in bus conflicts or unintended peripheral activation. Refer to the CHIPS programming guide for register map and default power-on states.
Can the F82C411 be used in battery-powered embedded systems where low standby current is critical, and how does its power consumption compare to the Intel 82C411?
The F82C411 has a typical standby current of 1.2 mA at 5V, which is approximately 20% higher than the Intel 82C411 under identical conditions. In battery-powered applications with long idle periods, this increased quiescent draw may necessitate power gating via an external MOSFET or selection of a more power-efficient companion chip, depending on the system’s duty cycle and battery capacity.
What PCB layout guidelines should be followed when designing with the F82C411 in a QFP package to ensure signal integrity and manufacturability?
The F82C411 in QFP package requires careful attention to trace impedance, especially for high-speed signals such as address and data lines. Maintain consistent trace lengths within 50 mil tolerance for bus lines, use ground planes beneath the device to reduce EMI, and ensure solder paste stencil apertures are properly scaled to prevent bridging. Thermal vias under the center pad are recommended for heat dissipation in densely populated boards.

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