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Microchip Technology ATF1504ASVL-20AI44
- Part No.:
- ATF1504ASVL-20AI44
- Manufacturer:
- Microchip Technology
- Package:
- 44-TQFP
- Datasheet:
-
ATF1504ASVL-20AI44.pdf
- Description:
- IC CPLD 64MC 20NS 44TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,920
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Product details
Overview
ATF1504ASVL-20AI44 from Microchip Technology is a 3.3V, 64-macrocell Complex Programmable Logic Device (CPLD) in 44-pin PLCC package, featuring 15 ns pin-to-pin delay, 77 MHz registered operation, and automatic 5 µA standby power. It supports in-system programming via JTAG and integrates logic from TTL, SSI, MSI, and legacy PLDs in industrial control and embedded interface applications.
For engineers reviewing the ATF1504ASVL-20AI44 datasheet, ATF1504ASVL-20AI44 pinout, ATF1504ASVL-20AI44 application, or ATF1504ASVL-20AI44 equivalent, key selection criteria include its 3.0–3.6V supply range, programmable slew rate, pin-keeper circuits, JTAG boundary-scan compliance (IEEE 1149.1), and dual power-down pins (PD1/PD2) for low-power system design.
Technical Context
The ATF1504ASVL-20AI44 implements a flexible macrocell architecture with five product terms per macrocell-expandable to 40 via cascade logic-and supports D/T/latch flip-flops, combinatorial outputs with registered feedback, and transparent-latch mode. Its global bus feeds all 64 macrocells and I/Os, enabling up to 40 signal selections per logic block.
It features three global clock inputs (GCLK1–GCLK3), input transition detection (ITD) on clocks/I/Os, fast registered input from product terms, and VCC power-up reset with selectable hysteresis. The device uses EEPROM-based configuration with 10,000 program/erase cycles and 20-year data retention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Voltage | 3.0V to 3.6V - compatible with 3.3V TTL/CMOS logic families and eliminates level-shifting in mixed-voltage systems |
| Macrocells | 64 - provides gate count equivalent to ~1500–2000 usable gates for medium-complexity glue logic integration |
| Pin-to-Pin Delay | 15 ns maximum - enables reliable timing closure in 66 MHz synchronous interfaces |
| Registered Frequency | 77 MHz - supports high-speed state machines and control logic in industrial PLCs and instrumentation |
| Standby Current | 5 µA (ATF1504ASVL) - reduces quiescent power in battery-backed or always-on embedded systems |
| JTAG Compliance | IEEE Std. 1149.1-1990 & 1149.1a-1993 - enables standardized boundary-scan testing and ISP without board removal |
| Package | 44-Lead PLCC - through-hole mounting suitable for prototyping, ruggedized industrial PCBs, and legacy rework environments |
Pinout & Package
ATF1504ASVL-20AI44 is packaged in a 44-lead Plastic Leaded Chip Carrier (PLCC) with 0.050" lead pitch and JEDEC-standard footprint. The package supports reflow and wave soldering and is rated for industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 26, 32 | JTAG TDI/TMS/TCK/TDO | Standard 4-pin IEEE 1149.1 interface for boundary-scan test and in-system programming; configurable as I/O if JTAG disabled |
| 2–6, 8–11, 13–16, 18–25, 27–31, 33–40, 42–44 | Bi-directional I/O | Programmable as input, output, or bidirectional; each supports pin-keeper, slew-rate control, and open-collector option |
| 35, 37, 40 | GCLK3/GCLK1/GCLK2 | Dedicated global clock inputs - drive all macrocells simultaneously; support ITD for glitch-free asynchronous event capture |
| 39 | GCLR | Global asynchronous clear - resets all registers synchronously across logic blocks; configurable per-macrocell |
| 5, 19 | PD1/PD2 | Power-down control inputs - assert high to enter sub-5 mA power-down mode; latches internal state and preserves I/O levels |
| 4, 16, 24, 36 | GND | Four dedicated ground pins - reduce ground bounce and improve noise immunity in high-speed CPLD routing |
| 9, 17, 29, 41 | VCC | Four VCC (VCCIO/VCCINT) pins - decouple power for I/O and core logic separately; enable stable operation at 3.3V |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Pin-Keeper Circuits | Prevents floating inputs/I/Os without external pull-ups - eliminates DC leakage current and system noise in unconnected logic paths |
| Individual Macrocell Power Control | Reduces dynamic power by disabling unused macrocells - lowers ICC during partial utilization without sacrificing timing |
| Combinatorial Output with Registered Feedback | Enables buried latch creation within single macrocell - supports dual-edge-triggered logic and compact state machine encoding |
| Edge-Controlled Power-Down | Enters <5 µA standby automatically on signal inactivity - delivers proportional power savings below 5 MHz system clock rates |
| Three Global Clock Pins + ITD | Allows independent clock domains and edge-triggered interrupt detection on any global clock or I/O - simplifies real-time event handling |
Applications
| Industrial PLC I/O Expansion | Legacy System Interface Bridging |
|---|---|
Use Scenario: Adding isolated digital I/O channels to a programmable logic controller chassis using discrete TTL buffers and address decoders. IC Role / Device Role / Timing Role: Replaces multiple 74-series chips and PALs to consolidate address decoding, strobe generation, and status multiplexing into one CPLD. Use Value: Reduces BOM count by >70%, cuts PCB area by 40%, and maintains 15 ns timing margin for 66 MHz backplane communication. | Use Scenario: Interfacing a modern microcontroller to an aging ISA-bus peripheral requiring custom handshake and bus arbitration logic. IC Role / Device Role / Timing Role: Implements WAIT, READY, and BUSY protocol translation with precise setup/hold timing relative to ISA clock edges. Use Value: Enables drop-in replacement of obsolete GAL22V10 while preserving original timing constraints and supporting field firmware updates via JTAG. |
| Test Equipment Signal Conditioning | Medical Device Safety Logic |
Use Scenario: Generating synchronized trigger pulses, channel gating, and fault masking in automated test equipment with multi-channel analog front-ends. IC Role / Device Role / Timing Role: Provides deterministic, low-jitter pulse shaping and interlock logic between FPGA-based acquisition and relay-driven stimulus modules. Use Value: Achieves <2 ns jitter on gated outputs and supports fail-safe shutdown via GCLR assertion when safety watchdog expires. | Use Scenario: Implementing redundant hardware interlocks and emergency stop sequencing in Class II medical infusion pumps with dual independent control paths. IC Role / Device Role / Timing Role: Executes SIL-2-compliant safety logic using registered state machines with built-in power-up reset and latch-up immunity. Use Value: Meets IEC 62304 requirements via EEPROM non-volatility, 200 mA latch-up rating, and security fuse protection against unauthorized configuration changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATF1504ASV-20AI44 | Same logic architecture and pinout, but lacks automatic 5 µA standby - typical standby current is 75 mA | Suitable for cost-sensitive, non-battery-powered applications where power management is secondary to price | Select only if industrial temperature range and PLCC package are required, and standby current >50 µA is acceptable |
| XC9572XL-10VQ44C | Xilinx CoolRunner-II device with 72 macrocells, 5 ns tPD, and 100 MHz fMAX - uses different JTAG chain and software toolchain | Better suited for high-speed, low-power portable designs requiring <10 µA deep sleep and faster timing closure | Choose when migrating from legacy Xilinx tools or when tighter timing margins and lower active power are critical |
Compared with ATF1504ASVL-20AI44, the ATF1504ASV-20AI44 trades ultra-low standby power for lower unit cost, while the XC9572XL-10VQ44C offers higher speed and deeper sleep but requires full toolchain migration and layout review due to different voltage and timing characteristics.
Availability
ATF1504ASVL-20AI44 is available at Aetrix Electronics and suitable for industrial PLC expansion, legacy interface bridging, test equipment signal conditioning, and medical device safety logic requiring stable component supply across extended production lifecycles.
Supply support for ATF1504ASVL-20AI44 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 is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and programmable logic solutions with broad industrial and automotive qualification.
The ATF1504ASV(L) product line was designed for high-reliability, field-upgradable glue logic in industrial automation, test instrumentation, and medical electronics where EEPROM non-volatility, JTAG debug access, and long-term supply stability are essential.
FAQ
What is the operating voltage range for the ATF1504ASVL-20AI44?
The ATF1504ASVL-20AI44 operates over a 3.0V to 3.6V supply range, making it compatible with standard 3.3V logic families. This range ensures robust noise immunity and eliminates the need for level shifters when interfacing with common microcontrollers and FPGAs. The device's VCCIO and VCCINT rails are internally tied, simplifying power delivery. All DC and AC specifications-including VIH, VOL, and ICC-are guaranteed across this full voltage window.
Does the ATF1504ASVL-20AI44 support in-system programming?
Yes, the ATF1504ASVL-20AI44 supports in-system programming (ISP) via its 4-pin JTAG interface compliant with IEEE Std. 1149.1-1990 and 1149.1a-1993. Programming can be performed without removing the device from the PCB using SVF files generated by Microchip ProChip Designer or third-party tools. The JTAG port remains functional even after security fuse programming, though fuse verification is disabled.
How does the automatic standby mode work on the ATF1504ASVL-20AI44?
The ATF1504ASVL-20AI44 enters automatic 5 µA standby mode when no logic transitions occur - reducing power proportionally in low-activity periods such as idle states in industrial controllers. This feature is exclusive to the "L" (low-power) variant and is implemented in hardware without software intervention. It complements the pin-controlled PD1/PD2 power-down mode, which forces sub-5 mA current regardless of activity.
What package type is used for the ATF1504ASVL-20AI44?
The ATF1504ASVL-20AI44 is supplied in a 44-lead Plastic Leaded Chip Carrier (PLCC) package with JEDEC MS-026AC standard footprint. This through-hole package supports manual rework, thermal cycling resilience, and compatibility with legacy assembly lines. Pin 1 is marked by a corner notch, and the device is rated for industrial temperature operation (–40°C to +85°C).
Can the JTAG pins on the ATF1504ASVL-20AI44 be reused as general-purpose I/O?
Yes - the four JTAG pins (TDI, TMS, TCK, TDO) on the ATF1504ASVL-20AI44 can be configured as general-purpose I/O if JTAG functionality is disabled in the design file. When disabled, these pins become fully functional bidirectional I/Os with pin-keeper, slew-rate control, and open-collector capability. However, doing so forfeits boundary-scan testability and in-system programming capability unless external programming hardware is used.
ATF1504ASVL-20AI44 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:
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TQFP (10x10)
ATF1504ASVL-20AI44 FAQ
1.How can I place an order for ATF1504ASVL-20AI44 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1504ASVL-20AI44 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-20AI44 reliable?
The price and inventory of ATF1504ASVL-20AI44 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1504ASVL-20AI44 is usually 5 days.
3.What payment methods are accepted for ATF1504ASVL-20AI44?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1504ASVL-20AI44 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1504ASVL-20AI44?
ATF1504ASVL-20AI44 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1504ASVL-20AI44 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-20AI44?
For technical support, including ATF1504ASVL-20AI44 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1504ASVL-20AI44 requirements.
6.How does Aetrix verify that ATF1504ASVL-20AI44 is sourced from the original manufacturer or authorized distributors?
All ATF1504ASVL-20AI44 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-20AI44 meets industry standards.
7.What is the process for return or replacement of ATF1504ASVL-20AI44?
All ATF1504ASVL-20AI44 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1504ASVL-20AI44, 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-20AI44 part is unused and in its original packaging.
Return procedure for ATF1504ASVL-20AI44:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1504ASVL-20AI44 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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