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Microchip Technology ATF1502ASV-20JI44
- Part No.:
- ATF1502ASV-20JI44
- Manufacturer:
- Microchip Technology
- Package:
- 44-LCC (J-Lead)
- Datasheet:
-
ATF1502ASV-20JI44.pdf
- Description:
- IC CPLD 32MC 20NS 44PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,955
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Product details
Overview
ATF1502ASV-20JI44 from Atmel is a high-density, electrically-erasable Complex Programmable Logic Device (CPLD) with 32 macrocells, 5 product terms per macrocell (expandable to 40), 44-pin TQFP package, 15 ns maximum pin-to-pin delay, and registered operation up to 77 MHz. It serves as a reprogrammable logic integration solution for legacy TTL/SSI/MSI replacement and control-plane logic in industrial embedded systems.
For engineers reviewing the ATF1502ASV-20JI44 datasheet, ATF1502ASV-20JI44 pinout, ATF1502ASV-20JI44 application, or ATF1502ASV-20JI44 equivalent, key selection criteria include industrial temperature support (−40°C to +85°C), JTAG-based in-system programmability, PCI compliance, 3.0–3.6 V operation, and configurable power-down via PD1/PD2 pins.
Technical Context
The ATF1502ASV-20JI44 implements a flexible macrocell architecture with five functional sections per macrocell: product term generation and select multiplexer, OR/XOR/cascade logic, D/T-latch-configurable flip-flop, output enable and polarity control, and logic array inputs. Its global bus carries all I/O and buried feedback signals, feeding a switch matrix that selects up to 40 signals per logic block.
It supports three global clock inputs (GCLK1–GCLK3), individual macrocell power reduction, programmable slew rate, open-collector outputs, and pin-keeper circuits on all I/Os. The device uses IEEE 1149.1-compliant JTAG for boundary-scan testing and ISP programming, with dedicated TDI/TMS/TCK/TDO pins and optional pull-ups on TMS/TDI.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 32 macrocells with 5 base product terms each, expandable to 40 via cascade logic for complex sum-of-products implementation |
| Timing Performance | 15 ns max pin-to-pin delay; 83.3 MHz max internal clock frequency (−20 speed grade) |
| Supply Voltage | 3.0 V to 3.6 V - compatible with 3.3 V system rails and tolerant of nominal 3.3 V ±10% variation |
| Operating Temperature | −40°C to +85°C - qualified for industrial environments without derating |
| Power Management | 0.75 mA standby current; pin-controlled power-down mode; per-macrocell reduced-power bit |
| Programmability | In-system programmable via IEEE 1149.1 JTAG interface; 10,000 program/erase cycles; 20-year data retention |
| Package | 44-lead TQFP (7 mm × 7 mm, 0.8 mm pitch) - surface-mount compatible with standard reflow profiles |
Pinout & Package
ATF1502ASV-20JI44 is housed in a 44-lead Thin Quad Flat Package (TQFP) with 0.8 mm lead pitch and exposed thermal pad (non-electrical). Pin numbering follows standard counter-clockwise orientation starting from top-left corner (Pin 1 = I/O/TDI).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 26, 32 | JTAG Interface (TDI, TMS, TCK, TDO) | Dedicated boundary-scan and ISP control; configurable as I/O if JTAG disabled in design |
| 4, 16, 24, 36 | GND | Four independent ground connections for noise reduction and signal integrity |
| 9, 17, 29, 41 | VCCI | Four 3.3 V supply pins distributed across package to minimize IR drop and improve decoupling |
| 37, 39, 38, 40, 35 | GCLK1, GCLR, OE1, GCLK2, GCLK3 | Dedicated global control pins - clock, clear, and output enable signals routed directly to all macrocells |
| 5, 19 | PD1, PD2 | Active-high power-down control inputs - trigger sub-5 mA standby when asserted |
| 32 bi-directional I/O | User-configurable logic I/O | Support input, output, or bidirectional modes; each includes programmable slew rate, open-collector option, and pin-keeper |
Key Features
| Feature | Design Value |
|---|---|
| Flexible Macrocell Architecture | Each macrocell supports D/T-latch flip-flops, buried registered feedback, combinatorial outputs with registered feedback, and fast registered input from product term |
| In-System Programmability (ISP) | IEEE 1149.1 JTAG interface enables field updates without device removal; supports SVF file programming and third-party toolchain integration |
| Advanced Power Control | Pin-keeper circuits eliminate external pull-ups; per-macrocell reduced-power bit cuts ICC by ~40%; PD1/PD2 pins enable <5 mA standby mode |
| Robust System Integration | PCI-compliant signaling; 2000 V HBM ESD protection; 200 mA latch-up immunity; VCC power-up reset with selectable hysteresis |
| Security & Traceability | One-time programmable security fuse prevents unauthorized readback; 16-bit user signature register stores project ID, revision, or date |
Applications
| Industrial Motor Control Logic | Legacy System Emulation |
|---|---|
Use Scenario: Replacing discrete TTL logic and PALs in PLC I/O modules requiring deterministic timing and long-term obsolescence mitigation. IC Role / Device Role / Timing Role: CPLD implementing state machines, address decoding, and interrupt arbitration with 15 ns pin-to-pin delay and 83.3 MHz register clocking. Use Value: Eliminates board-level wiring complexity and reduces BOM count while maintaining full compatibility with existing 3.3 V industrial backplanes. | Use Scenario: Emulating obsolete 22V10 and 16V8 PAL devices in avionics maintenance test equipment where firmware updates are infrequent but hardware longevity is critical. IC Role / Device Role / Timing Role: Pin-compatible logic replacement with identical macrocell count and product term flexibility, supporting both combinatorial and registered outputs. Use Value: Enables continued production of certified test gear using reprogrammable silicon instead of unobtainable mask-programmed parts. |
| PCI Bus Interface Logic | Field-Upgradeable Sensor Hub Controller |
Use Scenario: Implementing PCI target interface logic (address/data steering, parity generation, DEVSEL# timing) in industrial data acquisition cards. IC Role / Device Role / Timing Role: PCI-compliant control logic handling setup/hold timing, burst transfers, and error signaling within strict 30 ns window requirements. Use Value: Meets PCI Rev 2.2 electrical and protocol timing specs without external glue logic, reducing layout area and signal integrity risk. | Use Scenario: Managing multi-sensor synchronization, calibration storage, and SPI/I²C bridge logic in environmental monitoring nodes deployed in remote locations. IC Role / Device Role / Timing Role: Configurable I/O controller with JTAG ISP enabling firmware-driven sensor mapping changes and calibration coefficient updates over-the-air. Use Value: Supports zero-touch field upgrades via JTAG-over-SPI bridge, eliminating need for physical access or rework during calibration cycle updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATF1502ASV-20AI44 | Same die, identical electrical specs, but packaged in 44-lead PLCC instead of TQFP | Requires through-hole assembly; better thermal dissipation but larger footprint and higher inductance I/O paths | Select for legacy through-hole manufacturing or where PLCC socketing is required for field replacement |
| XCR3064XL-10VQ44C | Xilinx CoolRunner-II CPLD: 64 macrocells, 10 ns tPD, 3.3 V core, but no native PCI compliance or pin-keeper circuitry | Lacks integrated power-down control pins and JTAG pull-up options; requires external reset management | Choose when higher logic density or lower static current (<10 µA) is prioritized over industrial-grade power-down simplicity |
Compared with ATF1502ASV-20JI44, the PLCC variant offers mechanical serviceability at the cost of board space and modern SMT compatibility, while the XCR3064XL provides greater capacity but demands additional support circuitry for equivalent industrial robustness.
Availability
ATF1502ASV-20JI44 is available at Aetrix Electronics and suitable for industrial motor control, legacy system emulation, and PCI interface logic requiring stable component supply across extended lifecycle programs.
Supply support for ATF1502ASV-20JI44 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) specialized in non-volatile programmable logic and microcontrollers, emphasizing reliability, reprogrammability, and industrial qualification.
The ATF1502ASV product line was designed for high-reliability logic consolidation in industrial, telecom, and aerospace systems where EEPROM-based reconfigurability, JTAG debuggability, and long-term data retention were critical.
FAQ
What is the operating voltage range for the ATF1502ASV-20JI44?
The ATF1502ASV-20JI44 operates from 3.0 V to 3.6 V DC. This range ensures compatibility with standard 3.3 V logic families and accommodates typical power rail tolerances. Operation outside this range may cause functional failure or permanent damage, as specified in Absolute Maximum Ratings. The ATF1502ASV-20JI44 does not support 5 V I/O or mixed-voltage operation.
Does the ATF1502ASV-20JI44 support in-system programming, and what interface is used?
Yes, the ATF1502ASV-20JI44 supports in-system programming (ISP) exclusively via its IEEE 1149.1-compliant 4-pin JTAG interface (TDI, TMS, TCK, TDO). No external programming voltage is required. The ATF1502ASV-20JI44 can be programmed while soldered on the PCB using SVF files, and JTAG functionality remains active unless explicitly disabled in the design configuration.
What are the key differences between the ATF1502ASV-20JI44 and the ATF1502ASV-20AI44?
The ATF1502ASV-20JI44 and ATF1502ASV-20AI44 share identical silicon, speed grade (−20), and industrial temperature rating (−40°C to +85°C), differing only in package: TQFP vs. PLCC. The ATF1502ASV-20JI44 uses a 44-lead TQFP (7×7 mm), while the ATF1502ASV-20AI44 uses a 44-lead PLCC. Pin functions and electrical characteristics are fully matched.
How does the power-down feature work on the ATF1502ASV-20JI44?
The ATF1502ASV-20JI44 implements pin-controlled power-down using PD1 (Pin 5) or PD2 (Pin 19). When either pin is driven high, the device enters a low-current state (<5 mA), latching all internal states and outputs. Inputs (except PD pins) are blocked, and pin-keeper circuits maintain I/O levels. The ATF1502ASV-20JI44 must be configured with the power-down option enabled in the design source file.
Is the ATF1502ASV-20JI44 RoHS compliant?
Yes, the ATF1502ASV-20JI44 is RoHS compliant and offered in green (Pb-free/halide-free) packaging per manufacturer documentation. It meets EU Directive 2011/65/EU requirements and carries appropriate marking. Lead-free reflow profiles apply, and the device is rated for standard JEDEC moisture sensitivity level (MSL) 3 handling.
ATF1502ASV-20JI44 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF15xx
- Package/Case:
- 44-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- In System Programmable (min 10K program/erase cycles)
- Delay Time tpd(1) Max:
- 20 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-PLCC (16.6x16.6)
ATF1502ASV-20JI44 FAQ
1.How can I place an order for ATF1502ASV-20JI44 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1502ASV-20JI44 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-20JI44 reliable?
The price and inventory of ATF1502ASV-20JI44 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1502ASV-20JI44 is usually 5 days.
3.What payment methods are accepted for ATF1502ASV-20JI44?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1502ASV-20JI44 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1502ASV-20JI44?
ATF1502ASV-20JI44 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1502ASV-20JI44 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-20JI44?
For technical support, including ATF1502ASV-20JI44 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1502ASV-20JI44 requirements.
6.How does Aetrix verify that ATF1502ASV-20JI44 is sourced from the original manufacturer or authorized distributors?
All ATF1502ASV-20JI44 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-20JI44 meets industry standards.
7.What is the process for return or replacement of ATF1502ASV-20JI44?
All ATF1502ASV-20JI44 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1502ASV-20JI44, 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-20JI44 part is unused and in its original packaging.
Return procedure for ATF1502ASV-20JI44:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1502ASV-20JI44 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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