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Microchip Technology ATF1502ASV-15AC44
- Part No.:
- ATF1502ASV-15AC44
- Manufacturer:
- Microchip Technology
- Package:
- 44-TQFP
- Datasheet:
-
ATF1502ASV-15AC44.pdf
- Description:
- IC CPLD 32MC 15NS 44TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,882
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Product details
Overview
ATF1502ASV-15AC44 from Microchip (formerly Atmel) is a high-density, electrically-erasable Complex Programmable Logic Device (CPLD) with 32 macrocells, 5–40 expandable product terms per macrocell, 44-pin TQFP/PLCC packaging, 15 ns pin-to-pin delay, and operation up to 77 MHz registered speed. It integrates legacy TTL/SSI/MSI logic in industrial control, FPGA companion, and reconfigurable I/O interface applications.
For engineers reviewing the ATF1502ASV-15AC44 datasheet, ATF1502ASV-15AC44 pinout, ATF1502ASV-15AC44 application, or ATF1502ASV-15AC44 equivalent, key selection criteria include JTAG ISP capability, 3.0–3.6 V supply compatibility, programmable slew rate and open-collector outputs, pin-controlled power-down mode, and IEEE 1149.1 boundary-scan compliance for production testability.
Technical Context
The ATF1502ASV-15AC44 implements a global bus architecture feeding up to 40 signals into each logic block's switch matrix, enabling high routing flexibility and successful pin-locked design revisions. Its macrocell supports D/T-latch configurable flip-flops, combinatorial or registered outputs, buried feedback, and fast registered input from product terms.
Three dedicated global clock pins (GCLK1–3), two global output enable pins (OE1/OE2), global clear (GCLR), and dual power-down pins (PD1/PD2) provide system-level control. JTAG pins (TDI/TMS/TCK/TDO) support both boundary-scan testing and in-system programming without requiring device removal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 32 macrocells - provides gate count equivalent to ~1500 usable PLD gates for medium-complexity glue logic |
| Timing Grade | -15 speed grade - guarantees ≤15 ns pin-to-pin delay under commercial conditions (0°C to 70°C) |
| Operating Voltage | 3.0–3.6 V - compatible with 3.3 V systems; no 5 V tolerance required |
| Max Registered Frequency | 77 MHz - enables synchronous logic in high-speed control and data-path interfaces |
| Program/Erase Cycles | 10,000 cycles - supports field firmware updates and iterative design validation |
| Data Retention | 20 years - ensures long-term configuration stability in unpowered storage |
| ESD Protection | 2000 V HBM - meets industrial handling requirements without external protection |
| Latch-up Immunity | 200 mA - prevents destructive latch-up during transient overvoltage events |
Pinout & Package
ATF1502ASV-15AC44 is available in 44-lead TQFP (44A) and 44-lead PLCC (44J) packages. Both are RoHS-compliant, lead-free, and rated for commercial temperature range (0°C to 70°C). Pin functions are identical across packages; only physical layout differs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GCLK1, GCLK2, GCLK3 | Global Clock Inputs | Three independent clock sources; each can drive any macrocell; enables multi-clock domain designs |
| OE1, OE2 | Global Output Enable | Active-low enables for all I/Os; supports shared bus arbitration and tri-state control |
| GCLR | Global Asynchronous Clear | Resets all registers synchronously or asynchronously depending on macrocell configuration |
| PD1, PD2 | Power-down Control | High-active pins that reduce ICC to ≤0.75 mA; latches internal state and preserves I/O levels |
| TDI, TMS, TCK, TDO | JTAG Boundary-scan Interface | IEEE 1149.1-compliant test and programming port; optional pull-ups on TMS/TDI |
| VCCI (×4) | Core Power Supply | Four distributed 3.3 V supply pins minimize IR drop and improve noise immunity |
| GND (×4) | Ground Reference | Four dedicated ground pins ensure stable reference and reduce switching noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| In-System Programmability (ISP) | Enables field firmware updates via JTAG without board removal - reduces manufacturing rework and supports late-stage design changes |
| Programmable Slew Rate | Per-output control allows slow switching to suppress EMI on non-critical signals while maintaining full speed on timing-critical paths |
| Pin-keeper Circuits | Eliminates need for external pull-ups on unused inputs/I/Os - reduces BOM cost and PCB area while preventing floating-induced power waste |
| Reduced-power Macrocell Option | Individual macrocell power gating cuts standby current by >30% - extends battery life in low-duty-cycle embedded systems |
| Security Fuse | One-time programmable fuse blocks unauthorized readback of configuration bitstream - protects IP in production devices |
| User Signature Register | 16-bit accessible register stores project ID, revision, or date - enables traceability and version control without consuming logic resources |
Applications
| Industrial PLC I/O Expansion | FPGA Companion Logic |
|---|---|
Use Scenario: Adding configurable digital I/O, level translation, and protocol bridging to modular PLC backplanes. IC Role / Device Role / Timing Role: Glue logic CPLD providing register-controlled signal conditioning, debounce, and bus arbitration between CPU and peripheral modules. Use Value: Replaces multiple discrete logic ICs; supports field-upgradable I/O mapping via JTAG ISP without hardware change. |
Use Scenario: Offloading fixed-function logic (e.g., PCIe reset sequencing, AXI address decoding, or clock domain crossing) from FPGA fabric. IC Role / Device Role / Timing Role: Dedicated control logic engine with deterministic 15 ns timing - avoids FPGA routing variability and resource contention. Use Value: Reduces FPGA LUT usage and improves timing closure; leverages proven EEPROM-based configuration retention. |
| Legacy System Emulation | Automated Test Equipment (ATE) Signal Conditioning |
Use Scenario: Replacing obsolete TTL/PLD chips (e.g., 74LS series, PAL16L8) in avionics or medical equipment with long-life requirements. IC Role / Device Role / Timing Role: Pin-compatible logic replacement with identical propagation delay and drive strength - validated against original timing specs. Use Value: Eliminates obsolescence risk; maintains backward compatibility while enabling future firmware updates. |
Use Scenario: Generating synchronized stimulus patterns, capturing response waveforms, and managing channel enable/disable sequencing in ATE pin electronics. IC Role / Device Role / Timing Role: High-reliability, low-jitter pattern generator with precise setup/hold control and boundary-scan test access. Use Value: Enables 100% test coverage via IEEE 1149.1 BST; supports real-time pattern modification during test execution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCR3064XL-10VQ44C | 64 macrocells, 3.3 V, -10 speed grade (10 ns), CoolRunner-II architecture with lower static current | Higher density and lower power, but lacks pin-keeper and programmable slew rate features | Preferred when higher logic capacity or ultra-low standby current (<10 µA) is required; requires PCB redesign due to different pinout |
| ATF1504ASV-15AC44 | 64 macrocells, same voltage/speed/package, identical feature set plus additional global controls and routing resources | Direct upgrade path with full pin compatibility and expanded logic capacity | Recommended when design scalability or future logic expansion is anticipated; shares same toolchain and footprint |
Compared with XCR3064XL-10VQ44C and ATF1504ASV-15AC44, the ATF1502ASV-15AC44 offers optimal balance of proven reliability, JTAG ISP maturity, and industrial-grade EEPROM retention - making it ideal for cost-sensitive, medium-complexity applications where pin compatibility and field update capability are critical.
Availability
ATF1502ASV-15AC44 is available at Aetrix Electronics and suitable for industrial control, legacy system modernization, FPGA companion logic, and automated test equipment requiring stable component supply and long-term lifecycle support.
Supply support for ATF1502ASV-15AC44 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
Microchip Technology acquired Atmel in 2016 and continues to support legacy Atmel PLD products including the ATF1502ASV family. Microchip is a leading provider of microcontrollers, analog, and programmable logic solutions.
The ATF1502ASV series was designed for high-reliability, reconfigurable digital logic in industrial, automotive, and communications infrastructure - emphasizing EEPROM-based nonvolatility, JTAG testability, and robust power management.
FAQ
What is the operating temperature range for ATF1502ASV-15AC44?
The ATF1502ASV-15AC44 is specified for commercial temperature range: 0°C to +70°C. Its electrical characteristics, including 15 ns pin-to-pin delay and 77 MHz maximum registered frequency, are guaranteed within this range. Industrial variants (e.g., ATF1502ASV-15AI44) extend to –40°C to +85°C but require separate ordering.
Does ATF1502ASV-15AC44 support in-system programming (ISP)?
Yes, ATF1502ASV-15AC44 supports full IEEE 1149.1-compliant in-system programming via its four-pin JTAG interface (TDI, TMS, TCK, TDO). ISP allows configuration updates without removing the device from the PCB, enabling field firmware revisions and manufacturing programming flexibility.
What package types are available for ATF1502ASV-15AC44?
ATF1502ASV-15AC44 is offered in two RoHS-compliant, lead-free packages: 44-lead TQFP (package code 44A) and 44-lead PLCC (package code 44J). Both share identical pin functions and electrical specifications; only mechanical dimensions and mounting differ.
How does the pin-keeper feature work on ATF1502ASV-15AC44?
The pin-keeper option on ATF1502ASV-15AC44 maintains the last driven logic state (high or low) on unused input or I/O pins, preventing floating and associated power waste or noise. It eliminates external pull-up resistors and is programmable per-pin during design compilation.
Can ATF1502ASV-15AC44 be used in 5 V systems?
No, ATF1502ASV-15AC44 operates strictly at 3.0–3.6 V and is not 5 V tolerant. Its I/O pins must not exceed VCC + 0.75 V (≤4.35 V), and absolute maximum input voltage is +7.0 V only for sub-20 ns pulses. Interfacing with 5 V logic requires level-shifting circuitry.
ATF1502ASV-15AC44 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF15xx
- Package/Case:
- 44-TQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- In System Programmable (min 10K program/erase cycles)
- Delay Time tpd(1) Max:
- 15 ns
- Voltage Supply - Internal:
- 3V ~ 3.6V
- Number of Logic Elements/Blocks:
- -
- Number of Macrocells:
- 32
- Number of Gates:
- -
- Number of I/O:
- 32
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TQFP (10x10)
ATF1502ASV-15AC44 FAQ
1.How can I place an order for ATF1502ASV-15AC44 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1502ASV-15AC44 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 ATF1502ASV-15AC44 reliable?
The price and inventory of ATF1502ASV-15AC44 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1502ASV-15AC44 is usually 5 days.
3.What payment methods are accepted for ATF1502ASV-15AC44?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1502ASV-15AC44 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1502ASV-15AC44?
ATF1502ASV-15AC44 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1502ASV-15AC44 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 ATF1502ASV-15AC44?
For technical support, including ATF1502ASV-15AC44 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1502ASV-15AC44 requirements.
6.How does Aetrix verify that ATF1502ASV-15AC44 is sourced from the original manufacturer or authorized distributors?
All ATF1502ASV-15AC44 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 ATF1502ASV-15AC44 meets industry standards.
7.What is the process for return or replacement of ATF1502ASV-15AC44?
All ATF1502ASV-15AC44 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1502ASV-15AC44, 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 ATF1502ASV-15AC44 part is unused and in its original packaging.
Return procedure for ATF1502ASV-15AC44:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1502ASV-15AC44 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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