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Microchip Technology ATF1504ASVL-20JC44
- Part No.:
- ATF1504ASVL-20JC44
- Manufacturer:
- Microchip Technology
- Package:
- 44-LCC (J-Lead)
- Datasheet:
-
ATF1504ASVL-20JC44.pdf
- Description:
- IC CPLD 64MC 20NS 44PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,372
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Product details
Overview
ATF1504ASVL-20JC44 from Microchip Technology is a 3.3V, 64-macrocell complex programmable logic device (CPLD) in 44-pin PLCC package, featuring 15 ns maximum pin-to-pin delay, 77 MHz registered operation, and automatic 5 µA standby power. It integrates TTL/SSI/MSI logic replacement, PCI-compliant I/O, and JTAG boundary-scan for IEEE Std. 1149.1a-1993 test and in-system programming.
For engineers reviewing the ATF1504ASVL-20JC44 datasheet, ATF1504ASVL-20JC44 pinout, ATF1504ASVL-20JC44 application, or ATF1504ASVL-20JC44 equivalent, this page delivers verified electrical specs, macrocell architecture details, PLCC pin mapping, industrial temperature support (–40°C to +85°C), and real-world CPLD integration guidance for legacy system upgrades and glue logic consolidation.
Technical Context
The ATF1504ASVL-20JC44 implements a hierarchical logic architecture with 64 macrocells, each containing five product terms expandable via cascade logic to 40 terms per chain across four independent chains. Its global bus feeds all 64 macrocells and up to 68 I/Os, while regional foldback buses enable high-fan-in sum-term generation with sub-10 ns delay.
It supports three global clock inputs (GCLK1–GCLK3), input transition detection (ITD) on clocks and I/Os, programmable pin-keeper circuits, and edge-controlled power-down. The macrocell offers D/T/Latch flip-flop configuration, combinatorial or registered output selection, buried feedback routing, and fast registered input from product terms - all configurable via ProChip Designer or WinCUPL.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 64 macrocells with 5 base + up to 40 cascaded product terms per macrocell - enables full replacement of multiple SSI/MSI TTL devices in single-package glue logic. |
| Timing Performance | 15 ns max pin-to-pin delay (–20 speed grade); 77 MHz max registered clock frequency - meets timing closure for 33 MHz PCI and industrial control bus interfaces. |
| Power Management | Automatic 5 µA standby (ATF1504ASVL); pin-controlled power-down (<5 mA); per-macrocell reduced-power bit - cuts active and quiescent current without sacrificing I/O count or logic utilization. |
| Operating Voltage | 3.0V to 3.6V VCCIO/VCCINT - compatible with 3.3V LVTTL and LVCMOS systems; supports mixed-voltage I/O when configured with VCCIO pins. |
| Temperature Range | Industrial: –40°C to +85°C - qualified for deployment in factory automation controllers, motor drives, and telecom line cards. |
| JTAG Compliance | IEEE Std. 1149.1-1990 and 1149.1a-1993 boundary-scan - enables board-level testability, ISP programming, and debug visibility without external test fixtures. |
| Security & Reliability | 10,000 program/erase cycles; 20-year data retention; 2000V HBM ESD; 200 mA latch-up immunity - ensures field-programmable longevity in unattended embedded applications. |
Pinout & Package
ATF1504ASVL-20JC44 is housed in a 44-lead plastic leaded chip carrier (PLCC) with 16.5 mm × 16.5 mm body, J-lead profile, and through-hole mounting compatibility. Pin 1 is marked by corner notch; top view orientation follows standard PLCC numbering (counter-clockwise from notch).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (TDI/I/O) | JTAG Test Data Input / General I/O | Primary serial input for ISP programming and boundary-scan instruction/data; configurable as bidirectional logic pin when JTAG disabled. |
| 7 (I/O/TMS) | JTAG Test Mode Select / General I/O | Selects TAP controller state; retains full I/O functionality if JTAG not enabled in design file. |
| 26 (I/O/TCK) | JTAG Test Clock / General I/O | Drives synchronous JTAG state transitions; operates at ≤25 MHz; usable as clock input or general-purpose I/O. |
| 32 (I/O/TDO) | JTAG Test Data Output / General I/O | Serial output for boundary-scan register reads and ISP verification; tri-stated when not in JTAG mode. |
| 39 (GCLR/I) | Global Clear Input | Asynchronous reset for all 64 macrocell flip-flops; may be combined with product-term logic for selective reset control. |
| 37 (GCLK1/I) | Global Clock 1 Input | Dedicated low-skew clock source for register synchronization; supports ITD for glitch-free edge detection on asynchronous signals. |
| 35 (GCLK3/I/O) | Global Clock 3 Input / I/O | Configurable as clock input or bidirectional I/O; enables third independent clock domain for multi-rate logic partitioning. |
| 5, 19 (PD1/I/O, PD2/I/O) | Power-Down Control / I/O | Active-high pins that force <5 mA standby; disable during power-down but retain macrocell resources for foldback/cascade logic. |
| 4, 16, 24, 36 | GND | Four dedicated ground connections - reduce ground bounce and improve signal integrity for high-speed CPLD outputs. |
| 9, 17, 29, 41 | VCC | Four VCC (VCCIO/VCCINT) supply pins - ensure stable core and I/O voltage distribution across full 44-pin PLCC footprint. |
Key Features
| Feature | Design Value |
|---|---|
| Flexible Macrocell Architecture | Each of 64 macrocells supports D/T/Latch flip-flop, XOR-based arithmetic, buried registered/combinatorial feedback, and product-term clock enable - enabling efficient state machine and datapath implementation. |
| In-System Programmability (ISP) | JTAG-based reprogramming without device removal; supports SVF file generation for ATE integration and field firmware updates via microcontroller interface. |
| Enhanced Routing Resources | Global bus with 68+ signals + 40-signal switch matrix per logic block + foldback regional bus - increases successful place-and-route for pin-locked revisions and logic expansion. |
| Programmable Pin-Keeper Circuits | Prevents floating inputs/I/Os by latching last-driven state; eliminates need for external pull-ups and reduces system noise and DC leakage in unused signal paths. |
| PCI-Compliant I/O | Meets PCI Local Bus Specification 2.2 electrical requirements (3.3V signaling, timing, drive strength) - allows direct connection to PCI bus without level-shifting or buffering. |
Applications
| Industrial Control Logic | Legacy System Glue Logic Replacement |
|---|---|
Use Scenario: Replacing discrete 74-series TTL chips in PLC backplane interface modules handling sensor input decoding and relay driver sequencing. IC Role / Device Role / Timing Role: CPLD acts as synchronous state machine and combinational decoder; uses GCLK1 for 10 MHz scan clock and GCLR for cold-start initialization. Use Value: Reduces BOM count by >12 ICs; eliminates inter-chip skew; maintains deterministic 15 ns propagation for real-time I/O response. |
Use Scenario: Consolidating address decoding, bus arbitration, and interrupt prioritization logic in aging medical imaging equipment using ISA bus architecture. IC Role / Device Role / Timing Role: Functions as multi-function glue logic hub; leverages 64 macrocells to replicate 74LS138, 74LS139, and 74LS244 behavior with identical timing envelopes. Use Value: Enables drop-in PCB replacement without layout change; preserves original 3.3V I/O voltage levels and meets ISA timing margins with 77 MHz register clock headroom. |
| PCI Interface Adapter | Field-Upgradeable Communication Module |
Use Scenario: Implementing PCI target interface for custom FPGA-based data acquisition card requiring compliance with PCI Local Bus Spec 2.2. IC Role / Device Role / Timing Role: Handles PCI command decoding, parity generation, and bus turnaround control; uses TDI/TDO/TCK/TMS pins as native JTAG interface. Use Value: Eliminates external PCI interface ASIC; achieves full PCI electrical compliance without external termination resistors or level shifters. |
Use Scenario: Providing reconfigurable protocol translation (RS-485 ↔ CAN) in remote telemetry units deployed in oilfield SCADA networks. IC Role / Device Role / Timing Role: Configurable logic fabric adapts to new field protocols via ISP; PD1/PD2 pins enable ultra-low-power sleep between polling intervals. Use Value: Supports over-the-air firmware updates to CPLD configuration; extends battery life via 5 µA automatic standby during 99% of operational cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATF1504ASV-20JC44 | No automatic standby; typical standby current 75 mA vs. ATF1504ASVL-20JC44's 5 µA; otherwise identical logic resources, timing, and pinout. | Suitable only where continuous operation eliminates need for ultra-low-power sleep modes; not viable for battery-powered or thermally constrained deployments. | Select only if legacy design already uses ATF1504ASV and power budget permits higher quiescent draw. |
| XC9572XL-10TQ100C | Xilinx 72-macrocell CPLD in 100-pin TQFP; 3.3V operation; 10 ns pin-to-pin delay; no integrated pin-keeper or automatic standby; JTAG ISP supported. | Requires PCB redesign due to different package (TQFP vs. PLCC) and pin count (100 vs. 44); lacks PD1/PD2 power-down control and ITD circuitry. | Choose when higher macrocell count or faster timing is required and board space/layout revision is acceptable. |
Compared with ATF1504ASV-20JC44, the ATF1504ASVL-20JC44 delivers 15,000× lower standby current without logic or timing trade-offs; versus XC9572XL-10TQ100C, it offers PLCC compatibility, integrated power management, and smaller footprint - making it optimal for retrofitting legacy industrial hardware.
Availability
ATF1504ASVL-20JC44 is available at Aetrix Electronics and suitable for industrial control logic, legacy system glue logic replacement, PCI interface adapter, and field-upgradeable communication module applications requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for ATF1504ASVL-20JC44 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 Inc. is a leading provider of microcontrollers, analog components, and programmable logic solutions, serving automotive, industrial, consumer, and communications markets with vertically integrated silicon and software tools.
The ATF1504ASVL series belongs to Microchip's high-density, electrically-erasable CPLD family designed specifically for replacing TTL/SSI/MSI logic and enabling in-system reconfigurable glue logic in cost-sensitive, long-lifecycle industrial and telecom applications.
FAQ
What is the operating voltage range for the ATF1504ASVL-20JC44?
The ATF1504ASVL-20JC44 operates across a 3.0V to 3.6V VCCIO/VCCINT supply range, fully compliant with 3.3V LVTTL and LVCMOS logic families. This range ensures robust noise margin and compatibility with standard 3.3V system rails, and is validated per DS20006185A Table 1-1 for industrial temperature operation.
Does the ATF1504ASVL-20JC44 support in-system programming (ISP)?
Yes, the ATF1504ASVL-20JC44 supports full IEEE Std. 1149.1-compliant in-system programming via its four-pin JTAG interface (TDI, TMS, TCK, TDO). ISP enables field reconfiguration without device removal, and is implemented using SVF files generated by Microchip's ProChip Designer or WinCUPL tools.
How does the automatic standby mode work on the ATF1504ASVL-20JC44?
The ATF1504ASVL-20JC44 automatically enters a 5 µA standby mode when no logic transitions occur - reducing power proportionally below 5 MHz system activity. This feature is intrinsic to the "L" suffix variant and requires no external control; it is distinct from the optional pin-controlled power-down mode activated via PD1/PD2.
What package type is used for the ATF1504ASVL-20JC44?
The ATF1504ASVL-20JC44 uses a 44-lead plastic leaded chip carrier (PLCC) package with J-lead geometry, designated by the "JC44" suffix. It measures 16.5 mm × 16.5 mm, features through-hole mounting, and provides four VCC and four GND pins for stable power delivery across the CPLD's 64 macrocells.
Can the JTAG pins on the ATF1504ASVL-20JC44 be reused as general-purpose I/O?
Yes - the JTAG pins (TDI, TMS, TCK, TDO) on the ATF1504ASVL-20JC44 are fully configurable as general-purpose I/O when JTAG boundary-scan and ISP functions are disabled in the design file. This reclamation adds four additional logic resources without altering the ATF1504ASVL-20JC44 pinout or package.
ATF1504ASVL-20JC44 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:
- 64
- 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-PLCC (16.6x16.6)
ATF1504ASVL-20JC44 FAQ
1.How can I place an order for ATF1504ASVL-20JC44 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1504ASVL-20JC44 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 ATF1504ASVL-20JC44 reliable?
The price and inventory of ATF1504ASVL-20JC44 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1504ASVL-20JC44 is usually 5 days.
3.What payment methods are accepted for ATF1504ASVL-20JC44?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1504ASVL-20JC44 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1504ASVL-20JC44?
ATF1504ASVL-20JC44 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1504ASVL-20JC44 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 ATF1504ASVL-20JC44?
For technical support, including ATF1504ASVL-20JC44 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1504ASVL-20JC44 requirements.
6.How does Aetrix verify that ATF1504ASVL-20JC44 is sourced from the original manufacturer or authorized distributors?
All ATF1504ASVL-20JC44 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 ATF1504ASVL-20JC44 meets industry standards.
7.What is the process for return or replacement of ATF1504ASVL-20JC44?
All ATF1504ASVL-20JC44 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1504ASVL-20JC44, 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 ATF1504ASVL-20JC44 part is unused and in its original packaging.
Return procedure for ATF1504ASVL-20JC44:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1504ASVL-20JC44 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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