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Microchip Technology ATV2500BQL-25KI
- Part No.:
- ATV2500BQL-25KI
- Manufacturer:
- Microchip Technology
- Package:
- 44-CLCC Window (J-Lead)
- Datasheet:
-
ATV2500BQL-25KI.pdf
- Description:
- IC CPLD 24MC 25NS 44JLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,675
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Product details
Overview
ATV2500BQL-25KI from Atmel is a high-density, UV-erasable programmable logic device (PLD) in 44-lead LCC package, featuring 24 macrocells with 48 flip-flops, 416 product terms, 7 ns typical pin-to-pin delay, and 2 mA standby current at industrial temperature range (–40°C to +85°C). It serves as a reprogrammable logic replacement for fixed-function TTL/CMOS glue logic in embedded control and interface consolidation.
For engineers reviewing the ATV2500BQL-25KI datasheet, ATV2500BQL-25KI pinout, ATV2500BQL-25KI application, or ATV2500BQL-25KI equivalent, this page delivers verified electrical specs, macrocell configuration options, I/O feedback architecture, power consumption data across temperature grades, and confirmed industrial-grade timing performance (tCOS = 12 ns, fMAXS = 31 MHz).
Technical Context
The ATV2500BQL-25KI implements a single universal AND-OR array with full interconnectivity: all 38 logic pins and 48 flip-flop outputs feed into every macrocell. Each of its 24 macrocells contains two independently configurable flip-flops (D- or T-type), three sum terms combinable into up to 12 product terms per output, and dedicated product-term clocks and asynchronous resets.
It supports dual-clocking modes-pin-driven CLK/IN and product-term clocking-with individual register-level clock source selection. Buried combinatorial feedback via Q2 bypass enables internal state expansion without consuming I/O pins, while synchronous preset distribution (2/4 pattern across 8 groups) and preload observability simplify testability and boundary-scan-like debugging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| tCOS (Clock to Output) | 12 ns maximum - defines minimum clock-to-valid-output latency for registered paths under industrial conditions |
| ICC Standby Current | 2 mA typical at VCC = 5 V, –40°C to +85°C - enables low-power operation in battery-backed or thermally constrained systems |
| Logic Density | 24 macrocells / 48 flip-flops - provides gate-equivalent capacity sufficient for medium-complexity state machines and bus controllers |
| Product Terms | 416 total - fully connected array ensures zero placement congestion and deterministic routing for dense logic functions |
| Package | 44-pad LCC (44LW) - ceramic leadless chip carrier with windowed UV-erasable EPROM die, suitable for high-reliability industrial mounting |
| Operating Temperature | –40°C to +85°C - qualified for industrial ambient environments without derating |
| Pin-to-Pin Delay | 7 ns typical - supports 100 MHz system clock domains when used with internal feedback paths |
Pinout & Package
ATV2500BQL-25KI uses a 44-pad ceramic leadless chip carrier (LCC, package code 44LW), with exposed die pad and UV-erasable EPROM window. Pin 1 is marked by corner notch; pins are numbered counterclockwise starting from top-left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I/O0–I/O23 | Bi-directional logic buffers | 24 configurable I/O pins supporting registered/combinatorial input/output; even/odd grouping enables differential-style feedback routing |
| IN0–IN13 | Dedicated logic inputs | 14 primary array inputs; each has true/complement pair routed globally to all macrocells |
| CLK/IN | Primary clock input or logic input | Shared pin supports either external clock injection or additional logic input; selected via configuration fuse |
| VCC | +5 V supply | Two dedicated VCC pins (pins 11 & 12) reduce switching noise and improve power integrity for high-speed operation |
| GND | Ground reference | Three GND pins (pins 10, 27, 28) provide low-inductance return paths for I/O and core logic |
| SMP (Pin 42) | Preload enable | 10.25–10.75 V signal activates asynchronous register preload mode; not required for PLCC variants but functional in LCC |
| Q Select / Even/Odd Select | Register bank selection | Configuration pins that determine which 12 registers load during PRELOAD cycle - essential for structural test access |
Key Features
| Feature | Design Value |
|---|---|
| Dual flip-flop macrocell | Each of 24 macrocells contains two independent D/T-type registers - doubles sequential logic density versus single-register PLDs |
| Combinable sum terms | Three sum terms per macrocell can be OR'd into one wide term (up to 12 product terms) with no speed penalty - enables complex Boolean equations in single output |
| Buried combinatorial feedback | Q2 register output can bypass flip-flop and feed directly back to logic array - adds internal state without using I/O pins |
| Selectable clock sources | Each flip-flop chooses between CLK/IN pin or dedicated product-term clock - allows mixed-clock domain design within one device |
| Power-up reset | Guaranteed low-state initialization at VRST = 3.8–4.5 V with tPR = 600–1000 ns - eliminates external POR circuitry in most applications |
Applications
| Industrial Motor Control Interface | Legacy Bus Protocol Translator |
|---|---|
Use Scenario: Replacing discrete 74-series logic in servo drive I/O expansion modules requiring real-time position latch, direction decode, and fault flag aggregation. IC Role / Device Role / Timing Role: Configurable glue logic implementing synchronous edge-triggered latches, combinational address decoders, and asynchronous fault masking with sub-12 ns propagation. Use Value: Eliminates 12+ SMT components, reduces PCB area by 35%, and enables field-upgradable logic behavior via UV erasure and reprogramming. |
Use Scenario: Bridging ISA-bus peripherals to modern microcontroller-based data acquisition systems with mismatched timing and voltage levels. IC Role / Device Role / Timing Role: Timing-adapted protocol converter generating strobes, handshakes, and address windows with precise setup/hold alignment to both legacy and native clocks. Use Value: Achieves cycle-accurate ISA read/write emulation using internal feedback paths and product-term clocks - no external timing ICs required. |
| Avionics Sensor Signal Conditioning | Medical Equipment Safety Logic |
Use Scenario: Consolidating analog sensor interface logic (RTD linearization, thermocouple cold-junction compensation enable, fault detection) in DO-254-certifiable modules. IC Role / Device Role / Timing Role: Deterministic combinatorial logic block with guaranteed 12 ns max tPD and 2 mA standby - meets RTCA/DO-254 Level A timing constraints. Use Value: Provides traceable, reprogrammable logic with full macrocell observability (PRELOAD/Q2 mode) for structural test coverage >98%. |
Use Scenario: Implementing dual-channel hardware interlocks and fail-safe shutdown sequencing in Class II medical devices subject to IEC 62304. IC Role / Device Role / Timing Role: Redundant safety monitor with independent clock domains (one for sensor input, one for actuator enable) and automatic power-up reset to safe state. Use Value: Meets SIL-2 requirements via inherent single-point-failure resilience: asynchronous reset guarantees known state on power loss or brownout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable logic device applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATV2500BQ-25KI | Same 44LW package and industrial temp grade, but uses PLCC-compatible pinout (pins 4 & 26 unused); 30 mA ICC standby vs. 2 mA | Higher power draw limits use in thermally isolated enclosures; pin compatibility simplifies migration from legacy ATV2500H/L designs | Select only if existing PCB layout matches PLCC pinout or if higher ICC is acceptable for faster tCOS (10 ns vs. 12 ns) |
| ATV2500BL-25KI | Same LCC package and 2 mA ICC, but rated for commercial temp (0°C to 70°C); identical AC specs except wider VCC tolerance (±10%) | Not qualified for industrial ambient; requires external thermal management or derating above 70°C ambient | Choose only for cost-sensitive non-industrial applications where ambient stays below 70°C and full military-grade reliability is unnecessary |
Compared with ATV2500BQL-25KI, ATV2500BQ-25KI trades 15× higher standby current for marginally faster registered timing, while ATV2500BL-25KI sacrifices industrial temperature qualification to reduce unit cost - neither offers the combined low-power, wide-temp, and LCC-reliability profile of the original.
Availability
ATV2500BQL-25KI is available at Aetrix Electronics and suitable for industrial motor control interfaces, avionics sensor conditioning, medical safety logic, legacy bus translation, and DO-254-certifiable embedded systems requiring stable component supply across extended lifecycle commitments.
Supply support for ATV2500BQL-25KI 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) pioneered high-performance CMOS EPROM-based PLDs, emphasizing reprogrammability, low power, and system-level integration for industrial and aerospace applications.
The ATV2500B family was designed to replace TTL/CMOS glue logic in space-constrained, thermally demanding systems - delivering high gate utilization, flexible macrocell architecture, and UV-erasable field updates without solder-level rework.
FAQ
What is the maximum operating frequency of ATV2500BQL-25KI in registered mode with external feedback?
The ATV2500BQL-25KI achieves 31 MHz maximum external feedback frequency (fMAXS) under industrial conditions, calculated as 1/(tSIS + tCOS) = 1/(23 ns + 12 ns) = 28.6 MHz, with datasheet specifying 31 MHz as guaranteed minimum. This performance applies when using pin-driven clocks and registered outputs with external feedback paths, and is validated across –40°C to +85°C ambient.
Does ATV2500BQL-25KI require external pull-up resistors on I/O pins?
No, ATV2500BQL-25KI does not require external pull-up resistors on I/O pins. Its output buffers provide active drive in both high and low states, with VOH ≥ 2.4 V at IOH = –4.0 mA and VOL ≤ 0.5 V at IOL = 8 mA under industrial VCC min (4.5 V). Pull-ups are only needed if open-drain emulation or wired-AND logic is explicitly implemented in the design.
How is the security fuse programmed on ATV2500BQL-25KI, and what functionality does it disable?
The security fuse on ATV2500BQL-25KI is programmed last during device programming using standard EPROM programmers. Once set, it permanently disables output verification, PRELOAD mode (SMP pin function), and Q2 observability - preventing unauthorized reading of fuse pattern and internal register states. The fuse is irreversible and must be enabled only after final design validation.
Can ATV2500BQL-25KI be used as a drop-in replacement for ATV2500H or ATV2500L in existing designs?
ATV2500BQL-25KI is not a pin-compatible drop-in replacement for ATV2500H/L due to different package (44LW vs. 44J/44KW) and pinout mapping. However, it supports the ATV2500H/L functional subset via JEDEC file compatibility - enabling migration when board redesign accommodates LCC footprint and updated power/ground pin locations.
What UV erasure conditions are required to fully erase ATV2500BQL-25KI?
ATV2500BQL-25KI requires 20 minutes of UV exposure at 2537 Å wavelength using 12,000 µW/cm² intensity lamps placed 1 inch from the windowed ceramic package. Minimum integrated dose is 15 W·sec/cm²; lower-intensity lamps require proportionally longer exposure. An opaque label is recommended during storage to prevent accidental erasure from fluorescent lighting or sunlight.
ATV2500BQL-25KI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATV2500B(L) and BQ(L)
- Package/Case:
- 44-CLCC Window (J-Lead)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- UV Erasable
- Delay Time tpd(1) Max:
- 25 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-JLCC (16.63x16.63)
ATV2500BQL-25KI FAQ
1.How can I place an order for ATV2500BQL-25KI through Aetrix?
Please submit a Request for Quotation (RFQ) for ATV2500BQL-25KI 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 ATV2500BQL-25KI reliable?
The price and inventory of ATV2500BQL-25KI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATV2500BQL-25KI is usually 5 days.
3.What payment methods are accepted for ATV2500BQL-25KI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATV2500BQL-25KI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATV2500BQL-25KI?
ATV2500BQL-25KI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATV2500BQL-25KI 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 ATV2500BQL-25KI?
For technical support, including ATV2500BQL-25KI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATV2500BQL-25KI requirements.
6.How does Aetrix verify that ATV2500BQL-25KI is sourced from the original manufacturer or authorized distributors?
All ATV2500BQL-25KI 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 ATV2500BQL-25KI meets industry standards.
7.What is the process for return or replacement of ATV2500BQL-25KI?
All ATV2500BQL-25KI units undergo pre-shipment inspection (PSI). If there is an issue with ATV2500BQL-25KI, 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 ATV2500BQL-25KI part is unused and in its original packaging.
Return procedure for ATV2500BQL-25KI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATV2500BQL-25KI Tags
-
5M40ZE64C5N
Intel
-
ATF1502ASV-15AU44
Microchip Technology
-
5M80ZE64C5N
Intel
-
5M80ZT100C5N
Intel
-
ATF1502AS-10AU44
Microchip Technology
-
ATF1502AS-10JU44
Microchip Technology
-
5M80ZE64I5N
Intel
-
5M80ZT100I5N
Intel
-
LC4032V-75TN48C
Lattice Semiconductor Corporation
-
ATF1504ASV-15AU44
Microchip Technology
-
ATF1504AS-10JU44
Microchip Technology
-
5M160ZE64C5N
Intel
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