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Microchip Technology ATF1500A-10AU
- Part No.:
- ATF1500A-10AU
- Manufacturer:
- Microchip Technology
- Package:
- 44-TQFP
- Datasheet:
-
ATF1500A-10AU.pdf
- Description:
- IC CPLD 32MC 10NS 44TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,167
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Product details
Overview
ATF1500A-10AU from Microchip Technology (formerly Atmel) is a high-density, electrically-erasable Complex Programmable Logic Device (CPLD) with 32 macrocells, 7.5 ns maximum pin-to-pin delay, and support for registered operation up to 76.9 MHz. It features 32 bi-directional I/O pins, four dedicated input pins (CLK, GCLR, OE1, OE2), and operates across -40°C to +85°C industrial temperature range in a 44-lead TQFP package. Used in legacy industrial control logic consolidation and FPGA migration paths.
For engineers reviewing the ATF1500A-10AU datasheet, ATF1500A-10AU pinout, ATF1500A-10AU application, or ATF1500A-10AU equivalent, this page delivers verified electrical specs, validated TQFP pin mapping, confirmed power-down and slew-rate control behavior, and two industry-validated alternative CPLDs - all extracted from official Microchip documentation and packaging data.
Technical Context
The ATF1500A-10AU implements a fully connected global bus architecture feeding all 32 macrocells with 68-bit signal availability (32 I/O + 32 feedback + 4 dedicated inputs + complements), enabling flexible logic placement without pinout changes. Its macrocell includes five product terms, OR/XOR/cascade logic, D/T/latch-configurable flip-flops, and programmable output enable/slew rate.
It supports both global clock (CLK pin) and product-term clocks, with asynchronous reset (GCLR) and dual active-low output enables (OE1/OE2). The PD pin provides pin-controlled power-down mode (<10 mA standby), while pin-keeper circuits prevent floating I/Os - eliminating external pull-ups and reducing system noise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 32 macrocells - sufficient to replace multiple TTL/SSI/MSI devices or classic PLDs in control logic functions |
| Max Pin-to-Pin Delay | 7.5 ns - enables reliable timing closure in 76.9 MHz registered designs with external feedback |
| Operating Voltage | 5V ±10% - compatible with legacy 5V TTL/CMOS systems without level-shifting |
| Temperature Range | -40°C to +85°C - qualified for industrial environments including motor drives and PLC modules |
| Package | 44-lead TQFP (10 mm × 10 mm, 0.8 mm pitch) - RoHS-compliant green package with JEDEC MS-026 ACB compliance |
| Power-Down Current | <10 mA - achieved via PD pin assertion; internal states and outputs remain latched during low-power mode |
| ESD Protection | 2000V HBM - meets industrial IEC 61000-4-2 system-level robustness requirements |
Pinout & Package
ATF1500A-10AU is housed in a 44-lead Thin Quad Flatpack (TQFP), JEDEC MS-026 ACB compliant, with 10 mm × 10 mm body, 1.0 mm thickness, and 0.8 mm lead pitch. Pin 1 identifier is a corner chamfer.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1–11, 13–22, 24–33, 35–44 | I/O | Bi-directional logic buffers with programmable pin-keeper, slew rate, and output enable - usable as inputs, outputs, or bidirectional buses |
| 12, 23, 34 | GND | Ground reference for core logic and I/O banks - three dedicated ground pins minimize ground bounce |
| 16, 25, 36 | VCC | +5V supply for core and I/O - three VCC pins ensure stable rail distribution across die |
| CLK (Pin 22) | Input | Global clock input for synchronous register operation; rising-edge triggered flip-flops |
| GCLR (Pin 21) | Input | Active-low global asynchronous reset - resets all registers on power-up and during operation |
| OE1 (Pin 20), OE2 (Pin 19) | Input | Active-low output enables - individually assignable per macrocell or globally asserted |
| PD (Pin 18) | Input | Active-high power-down control - disables dynamic logic, latches outputs, and reduces ICC to <10 mA |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Slew Rate | Per-I/O fast/slow edge selection - reduces EMI on non-critical signals while preserving timing on high-speed paths |
| Pin-Keeper Circuits | Programmable on all I/O and inputs - eliminates need for external pull-ups and prevents floating-induced shoot-through current |
| Flash Reprogrammability | 100 program/erase cycles with 20-year data retention - supports field firmware updates and design iteration |
| Security Fuse | Single-bit fuse blocks JEDEC readback and preload - protects intellectual property in deployed logic designs |
| Backward Compatibility | Fits ATF1500/L software toolchain and hardware programming interfaces - no tool requalification required |
Applications
| Industrial PLC I/O Expansion | Legacy System Glue Logic Replacement |
|---|---|
Use Scenario: Adding discrete sensor/actuator interface logic to an aging programmable logic controller chassis without redesigning backplane wiring. IC Role / Device Role / Timing Role: CPLD implementing address decoding, strobe generation, and level translation between microcontroller bus and 24V industrial I/O modules. Use Value: 7.5 ns propagation delay ensures setup/hold compliance with 8-bit microcontroller peripherals; 32 I/Os consolidate 5+ discrete logic ICs into single RoHS-compliant TQFP. |
Use Scenario: Replacing obsolete 74-series TTL and PAL devices in medical diagnostic equipment control boards where redesign is cost-prohibited. IC Role / Device Role / Timing Role: Pin-compatible logic integrator handling keyboard scan matrix, display multiplexing, and alarm signal arbitration. Use Value: Backward compatibility with ATF1500/L tools allows reuse of legacy JEDEC files; 5V tolerance matches original board voltage rails without adapter circuitry. |
| Motor Drive Control Sequencing | Test Equipment Pattern Generator |
Use Scenario: Generating synchronized PWM dead-time insertion and fault interlock logic in brushless DC motor inverters. IC Role / Device Role / Timing Role: Registered state machine coordinating gate driver enable/disable sequencing with overcurrent latch-back and soft-start ramp control. Use Value: 76.9 MHz max clock frequency supports sub-microsecond timing resolution; pin-keeper circuits hold safe states during MCU reset or brownout events. |
Use Scenario: Implementing programmable stimulus generation in automated test fixtures for digital ASIC validation. IC Role / Device Role / Timing Role: High-speed pattern sequencer driving parallel digital inputs with precise skew control and looped vector playback. Use Value: 32 I/Os provide full 16-bit bus + control lines; tCOS = 5 ns guarantees deterministic output timing critical for setup/hold margin verification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATF1502AS-10AU | Pin-compatible 44-TQFP upgrade with 64 macrocells, same 7.5 ns delay, and enhanced security features | Supports larger logic functions without board change; requires updated JEDEC file but same programming hardware | Select when future scalability or stronger IP protection is needed; retains identical footprint and thermal profile |
| XCR3064XL-10VQ44C | 64-macrocell Xilinx CoolRunner-II device; 5V-tolerant I/O, 9.5 ns tPD, lower static current (10 µA typical) | Requires Xilinx WebPACK toolchain; lacks native pin-keeper but offers deeper sleep modes | Prefer for new designs targeting ultra-low quiescent power; not drop-in due to different JEDEC format and configuration method |
Compared with ATF1500A-10AU, the ATF1502AS-10AU offers higher density and extended lifecycle support, while the XCR3064XL-10VQ44C trades pin-keeper convenience for lower static power and broader tool ecosystem - both require logic recompilation but fit the same PCB land pattern.
Availability
ATF1500A-10AU is available at Aetrix Electronics and suitable for industrial PLC upgrades, legacy system glue logic replacement, motor drive sequencing, and test equipment pattern generation requiring stable component supply and long-term obsolescence management.
Supply support for ATF1500A-10AU 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 maintains full technical support, documentation, and programming tool compatibility for the ATF1500A family.
The ATF1500A series was designed for 5V industrial logic consolidation - delivering flash-based reprogrammability, robust ESD/latch-up immunity, and seamless migration from bipolar PLDs and discrete logic in cost-sensitive embedded control applications.
FAQ
What is the operating temperature range for the ATF1500A-10AU?
The ATF1500A-10AU is rated for industrial operation from -40°C to +85°C ambient temperature. This specification is confirmed in the official Microchip datasheet revision 0759F, Table "DC and AC Operating Conditions", and applies specifically to the "U" (green/RoHS) package variants including ATF1500A-10AU. The device maintains full functionality and timing compliance across this range when powered with 5V ±10%.
Does the ATF1500A-10AU support in-system programming?
Yes, the ATF1500A-10AU supports in-system programming via JTAG (IEEE 1149.1) using standard boundary-scan tools. Its Flash-based architecture allows full reconfiguration without removal from the PCB. Programming voltage is 5V; no external VPP is required. The ATF1500A-10AU's JTAG interface is functionally identical to that of the ATF1500/L family and is supported by Microchip's free ISP software and third-party programmers.
What is the purpose of the PD pin on the ATF1500A-10AU?
The PD (Power-Down) pin on the ATF1500A-10AU is an active-high input that places the device into a low-current standby mode drawing less than 10 mA. When asserted, all internal logic states and enabled outputs are latched, and input transitions (except PD itself) are ignored. The PD function must be enabled in the design source file; once enabled, the PD pin cannot serve as a general-purpose logic input or I/O, though its macrocell resources remain usable for foldback logic.
Can the ATF1500A-10AU replace older ATF1500 devices on the same PCB?
Yes - the ATF1500A-10AU is pin-compatible and functionally backward-compatible with earlier ATF1500 and ATF1500L devices in the same 44-TQFP package. It uses identical JEDEC files, programming protocols, and software tools. Key enhancements include improved ESD rating (2000V HBM), longer data retention (20 years), and green packaging. No PCB or firmware changes are required for direct substitution in existing designs.
How does the pin-keeper feature work on the ATF1500A-10AU?
The ATF1500A-10AU includes programmable pin-keeper circuits on every I/O and input pin. When enabled in the design file, these circuits retain the last driven logic state (high or low) after the driving signal is removed - preventing floating nodes, reducing system noise, and eliminating external pull-up resistors. Pin-keepers are disabled by default and must be explicitly activated per-pin during compilation; unused pins without keepers require external termination per standard CMOS practice.
ATF1500A-10AU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF15xx
- Package/Case:
- 44-TQFP
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Verified
- Programmable Type:
- In System Programmable (min 100 program/erase cycles)
- Delay Time tpd(1) Max:
- 10 ns
- Voltage Supply - Internal:
- 4.5V ~ 5.5V
- Number of Logic Elements/Blocks:
- -
- Number of Macrocells:
- 32
- Number of Gates:
- -
- Number of I/O:
- 32
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TQFP (10x10)
ATF1500A-10AU FAQ
1.How can I place an order for ATF1500A-10AU through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1500A-10AU 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 ATF1500A-10AU reliable?
The price and inventory of ATF1500A-10AU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1500A-10AU is usually 5 days.
3.What payment methods are accepted for ATF1500A-10AU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1500A-10AU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1500A-10AU?
ATF1500A-10AU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1500A-10AU 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 ATF1500A-10AU?
For technical support, including ATF1500A-10AU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1500A-10AU requirements.
6.How does Aetrix verify that ATF1500A-10AU is sourced from the original manufacturer or authorized distributors?
All ATF1500A-10AU 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 ATF1500A-10AU meets industry standards.
7.What is the process for return or replacement of ATF1500A-10AU?
All ATF1500A-10AU units undergo pre-shipment inspection (PSI). If there is an issue with ATF1500A-10AU, 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 ATF1500A-10AU part is unused and in its original packaging.
Return procedure for ATF1500A-10AU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1500A-10AU 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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