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Microchip Technology ATF2500C-20KM
- Part No.:
- ATF2500C-20KM
- Manufacturer:
- Microchip Technology
- Package:
- 44-CLCC (J-Lead)
- Datasheet:
-
ATF2500C-20KM.pdf
- Description:
- IC CPLD 24MC 20NS 44JLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,866
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Product details
Overview
ATF2500C-20KM from Atmel is a high-density, electrically-erasable programmable logic device (PLD) in a 44-lead ceramic J-leaded chip carrier (JLCC) package, operating across -55°C to +125°C military temperature range. It delivers 15 ns maximum pin-to-pin delay at 5V, features 24 flexible macrocells with 48 D- or T-type flip-flops, and supports fully connected logic array with 416 product terms for high gate utilization in embedded control and legacy system upgrades.
For engineers reviewing the ATF2500C-20KM datasheet, ATF2500C-20KM pinout, ATF2500C-20KM application, or ATF2500C-20KM equivalent, this page provides verified timing parameters, military-grade thermal specs, macrocell configuration options, and direct replacement guidance for ATV2500B/BQ and ATV2500H designs.
Technical Context
The ATF2500C-20KM implements a single universal logic array where all 38 logic pins and 48 flip-flop outputs feed directly into every macrocell. Each of its 24 macrocells contains three sum terms combinable into up to 12 product terms per sum term-enabling complex state machines without speed penalty.
It supports individual asynchronous reset and OE control per macrocell, selectable D- or T-type flip-flops, product-term or direct pin clocking, and buried combinatorial feedback via Q2 bypass. All registers reset on power-up, and security fuse protection prevents unauthorized pattern copying.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Pin-to-Pin Delay | 20 ns at 5V - defines worst-case propagation through registered or combinatorial paths for timing-critical control logic |
| Logic Density | 24 macrocells / 48 flip-flops - enables full implementation of multi-stage counters, bus controllers, or protocol translators in one device |
| Operating Temperature | -55°C to +125°C (case) - qualified for military/aerospace platforms requiring extended thermal stability without derating |
| Supply Voltage | 5V ±10% - compatible with legacy 5V TTL/CMOS systems and tolerant of rail variation in ruggedized power domains |
| ESD Protection | 2000V HBM - ensures robust handling during board assembly and field maintenance in industrial environments |
| Data Retention | 10 years - guarantees nonvolatile configuration integrity over full lifecycle of deployed military hardware |
| Latch-up Immunity | 200 mA - prevents destructive latch-up under transient overvoltage or EFT events in mission-critical systems |
Pinout & Package
ATF2500C-20KM uses a 44-lead non-windowed ceramic J-leaded chip carrier (JLCC), designated 44K per Atmel's ordering code. This package features gull-wing leads, hermetic ceramic body, and dual ground connections (pins 4 and 26) recommended-but not required-for noise immunity, maintaining pin compatibility with ATV2500H/BQ.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN 0–13 | Logic Input | 14 dedicated array inputs; each feeds all macrocells directly for full connectivity and placement flexibility |
| CLK/IN | Input/Pin Clock | Shared input pin usable as global clock source or general logic input; enables mixed clock-domain designs |
| I/O 0–23 | Bi-directional I/O Buffer | 24 configurable I/Os with independent output enable (OE) product terms and internal feedback paths |
| VCC (P11, P12) | +5V Supply | Dual VCC pins reduce IR drop and improve power integrity for high-speed register transitions |
| GND (P4, P26, P33, P34) | Ground | Four GND terminals provide low-inductance return paths; P4/P26 optional but recommended for noise suppression |
Key Features
| Feature | Design Value |
|---|---|
| Selectable D- or T-type flip-flops | Per-macrocell register type selection enables efficient JK/SR emulation and reduces product term usage by up to 33% vs fixed-D architectures |
| Buried combinatorial feedback (Q2 bypass) | Allows internal feedback from Q2 to D/T2 without consuming I/O pins-expands logic depth while preserving pin count for system interface |
| Individual asynchronous reset per macrocell | Enables selective state machine reset without global reset assertion-critical for fault-tolerant partitioned control logic |
| Programmable pin-keeper circuits | Weak latches hold unused I/Os at last-driven state, eliminating external pull-ups in bus-hold applications and reducing BOM count |
| Security fuse | One-time programmable fuse blocks readback and disables preload/Q2 observability-protects proprietary logic design IP |
Applications
| Aerospace Flight Control Interface | Military Radar Signal Conditioning |
|---|---|
Use Scenario: Interfacing legacy analog sensor signals and discrete control lines to modern FPGA-based flight computers in avionics subsystems. IC Role / Device Role / Timing Role: Configurable glue logic implementing level translation, debounce, and synchronous sampling with deterministic 20 ns timing. Use Value: Military temperature rating and 10-year data retention ensure reliable operation across 20+ year aircraft service life without reprogramming. |
Use Scenario: Real-time pulse-width modulation decoding and trigger generation for phased-array radar front-end modules. IC Role / Device Role / Timing Role: High-speed registered logic block generating precise timing windows and synchronized strobes from RF detector outputs. Use Value: 200 mA latch-up immunity and 2000V ESD withstand prevent field failures in high-noise RF environments. |
| Secure Communications Crypto Module | Tactical Vehicle Bus Protocol Translator |
Use Scenario: Enabling tamper-resistant key scheduling and handshake sequencing in Type 1 encryption hardware. IC Role / Device Role / Timing Role: Secure state machine executing cryptographic handshakes with security fuse-protected configuration and power-up reset assurance. Use Value: Security fuse prevents reverse engineering; power-up reset guarantees known initial state before crypto initialization. |
Use Scenario: Bridging MIL-STD-1553B command/status signals to RS-422 vehicle telemetry buses in armored ground vehicles. IC Role / Device Role / Timing Role: Bidirectional protocol converter with independent OE control per I/O and buried feedback for status latching. Use Value: Pin-keeper circuits maintain bus state during hot-swap events; 44K package meets vibration and thermal shock requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATF2500C-20JI | Same logic architecture and timing, but rated for -40°C to +85°C industrial range; uses 44J plastic PLCC package | Not qualified for military thermal cycling or long-term storage at extreme temperatures | Select for cost-sensitive industrial systems where military qualification is unnecessary |
| ATF2500C-20PI | Same logic and timing, but in 40-pin PDIP (40P6); lacks dual VCC/GND pins and ceramic hermeticity | Lower ESD (1500V typical) and reduced thermal conductivity limit use in high-reliability platforms | Choose only for prototyping or legacy board replacements where PLCC/JLCC footprint is unavailable |
Compared with ATF2500C-20JI and ATF2500C-20PI, the ATF2500C-20KM uniquely delivers military-grade thermal endurance, hermetic packaging, and guaranteed 2000V ESD performance-making it the sole option for deployed aerospace and defense electronics requiring full MIL-PRF-38535 compliance.
Availability
ATF2500C-20KM is available at Aetrix Electronics and suitable for aerospace flight control interface, military radar signal conditioning, secure communications crypto module, and tactical vehicle bus protocol translator applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ATF2500C-20KM 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
Atmel Corporation (now part of Microchip Technology) is a semiconductor manufacturer specializing in microcontrollers, nonvolatile memory, and programmable logic devices for industrial, automotive, and defense markets.
The ATF2500C family was designed as a high-density, reprogrammable PLD solution for legacy system upgrades and military hardware modernization-emphasizing pin compatibility, military temperature operation, and security features.
FAQ
What is the operating temperature range of the ATF2500C-20KM?
The ATF2500C-20KM is specified for -55°C to +125°C case temperature operation, meeting military environmental requirements. This range is validated per MIL-STD-883 test methods and supports deployment in uncontrolled external compartments of aircraft, ground vehicles, and naval platforms where ambient extremes exceed commercial or industrial limits. The ATF2500C-20KM maintains full functionality-including 20 ns timing and register reliability-across this full span without derating.
Does the ATF2500C-20KM support pin-compatible replacement of the ATV2500H?
Yes, the ATF2500C-20KM is a direct replacement for the ATV2500H in JLCC packages, including identical pinout, same VCC/GND assignments (P11, P12, P33, P34), and optional GND pins (P4, P26). It retains backward software compatibility with ATV2500H JEDEC files and requires no PCB changes when upgrading legacy designs-while delivering faster 20 ns timing and enhanced features like T-type flip-flops and security fuse.
How does the security fuse on the ATF2500C-20KM protect configuration data?
The security fuse on the ATF2500C-25KM, once programmed, permanently disables readback verification, preload functionality, and Q2 observability mode. This prevents unauthorized extraction of the programmed logic pattern-even with full physical access to the device. The fuse is one-time programmable and must be set after final functional validation, as it immediately locks all protected features and cannot be reversed.
What are the power supply requirements for the ATF2500C-20KM?
The ATF2500C-20KM requires a single 5V supply with ±10% tolerance (4.5V to 5.5V), supporting both military-grade power rails and legacy 5V systems. It draws 80–130 mA standby current depending on temperature grade, and its dual VCC pins (P11, P12) reduce voltage drop under dynamic switching loads. No auxiliary supplies or voltage regulators are needed-simplifying power design in space-constrained military enclosures.
Can the ATF2500C-20KM be used in place of the ATF2500C-20JC or ATF2500C-20JI?
Yes, the ATF2500C-20KM is functionally identical to the ATF2500C-20JC and ATF2500C-20JI in logic architecture, timing, and feature set-but extends operation to -55°C to +125°C and uses a ceramic JLCC (44K) package instead of plastic PLCC (44J). It is a drop-in replacement for commercial/industrial variants in new designs targeting military qualification, though its higher cost and ceramic packaging are justified only where environmental rigor is mandated.
ATF2500C-20KM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF2500C(L)
- Package/Case:
- 44-CLCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Verified
- Programmable Type:
- In System Programmable
- Delay Time tpd(1) Max:
- 20 ns
- Voltage Supply - Internal:
- 4.5V ~ 5.5V
- Number of Logic Elements/Blocks:
- -
- Number of Macrocells:
- 24
- Number of Gates:
- -
- Number of I/O:
- 24
- Operating Temperature:
- -55°C ~ 125°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-JLCC (16.63x16.63)
ATF2500C-20KM FAQ
1.How can I place an order for ATF2500C-20KM through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF2500C-20KM 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 ATF2500C-20KM reliable?
The price and inventory of ATF2500C-20KM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF2500C-20KM is usually 5 days.
3.What payment methods are accepted for ATF2500C-20KM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF2500C-20KM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF2500C-20KM?
ATF2500C-20KM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF2500C-20KM 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 ATF2500C-20KM?
For technical support, including ATF2500C-20KM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF2500C-20KM requirements.
6.How does Aetrix verify that ATF2500C-20KM is sourced from the original manufacturer or authorized distributors?
All ATF2500C-20KM 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 ATF2500C-20KM meets industry standards.
7.What is the process for return or replacement of ATF2500C-20KM?
All ATF2500C-20KM units undergo pre-shipment inspection (PSI). If there is an issue with ATF2500C-20KM, 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 ATF2500C-20KM part is unused and in its original packaging.
Return procedure for ATF2500C-20KM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF2500C-20KM Tags
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5M40ZE64C5N
Intel
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ATF1502ASV-15AU44
Microchip Technology
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5M80ZE64C5N
Intel
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5M80ZT100C5N
Intel
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ATF1502AS-10AU44
Microchip Technology
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ATF1502AS-10JU44
Microchip Technology
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5M80ZE64I5N
Intel
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5M80ZT100I5N
Intel
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LC4032V-75TN48C
Lattice Semiconductor Corporation
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ATF1504ASV-15AU44
Microchip Technology
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ATF1504AS-10JU44
Microchip Technology
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5M160ZE64C5N
Intel
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