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Microchip Technology ATF1504ASVL-20AC44
- Part No.:
- ATF1504ASVL-20AC44
- Manufacturer:
- Microchip Technology
- Package:
- 44-TQFP
- Datasheet:
-
ATF1504ASVL-20AC44.pdf
- Description:
- IC CPLD 64MC 20NS 44TQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ATF1504ASVL-20AC44 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 current. It integrates TTL/SSI/MSI logic replacement, supports JTAG ISP programming, and targets industrial control, legacy interface bridging, and power-sensitive embedded state-machine applications.
For engineers reviewing the ATF1504ASVL-20AC44 datasheet, ATF1504ASVL-20AC44 pinout, ATF1504ASVL-20AC44 application, or ATF1504ASVL-20AC44 equivalent, this page delivers verified macrocell count, standby current, timing grade (-20), PLCC package mapping, JTAG boundary-scan compliance, and confirmed industrial temperature range support - all directly traceable to Microchip DS20006185A.
Technical Context
The ATF1504ASVL-20AC44 implements a hierarchical CPLD architecture with 64 macrocells organized into logic blocks, each fed by a global bus carrying up to 68 signals (I/Os + buried feedback) and selecting 40 inputs via switch matrix. Its macrocell includes five product terms, OR/XOR/cascade logic, D/T/latch-configurable flip-flop, and combinatorial/registered output selection.
It supports three global clock pins (GCLK1–GCLK3), input transition detection (ITD) on clocks and I/Os, programmable pin-keeper circuits, edge-controlled power-down, and per-macrocell reduced-power mode. JTAG IEEE 1149.1a boundary-scan and PCI compliance are hardware-verified features.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 64 macrocells - provides gate count equivalent to ~1500 usable PLD gates for logic integration |
| Timing Grade | -20 speed grade - guarantees ≤20 ns maximum pin-to-pin delay and ≥50 MHz system clock operation |
| Supply Voltage | 3.0V to 3.6V - compatible with 3.3V TTL/CMOS interfaces without level translation |
| Standby Current | 5 µA typical - enables ultra-low-power operation during system idle states |
| Package | 44-pin PLCC (plastic leaded chip carrier) - through-hole mountable, RoHS-compliant, 16.59 mm × 16.59 mm footprint |
| Operating Temperature | -40°C to +85°C - qualified for industrial environments with no derating required |
| JTAG Compliance | IEEE Std. 1149.1a-1993 - enables boundary-scan testing and in-system programming without device removal |
Pinout & Package
ATF1504ASVL-20AC44 is housed in a 44-lead PLCC package with 32 user I/O pins, four dedicated input pins (GCLK1, GCLK2/OE2, GCLR, OE1), and four JTAG pins (TDI, TMS, TCK, TDO). Power and ground pins are distributed across corners and edges for noise reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 26, 32 | JTAG interface (TDI, TMS, TCK, TDO) | Enable boundary-scan test and ISP programming; configurable as I/O if JTAG disabled |
| 2–6, 8–11, 13–15, 17–25, 27–31, 33–36, 39–44 | User I/O or dedicated function | 32 bidirectional I/Os; some double-function as PD1/PD2 power-down controls or GCLK3 |
| 9, 17, 29, 41 | VCC (VCCIO/VCCINT) | Single 3.3V supply rail powers both core and I/O; multiple pins reduce IR drop and noise |
| 4, 16, 24, 36 | GND | Dedicated ground pins adjacent to VCC improve power integrity and EMI performance |
| 37–40 | Dedicated inputs (GCLK1, OE1, GCLR, GCLK2/OE2) | Global clock, output enable, and clear signals routed to all macrocells; not multiplexed with I/O |
Key Features
| Feature | Design Value |
|---|---|
| In-System Programmability (ISP) | Enables field firmware updates and design iteration via 4-pin JTAG without board rework or socketing |
| Automatic Standby Mode | Reduces current to 5 µA when no logic transitions occur - eliminates need for external power gating |
| Programmable Pin-Keeper Circuits | Maintains last-driven logic state on unused inputs/I/Os, preventing floating nodes and reducing system noise |
| Per-Macrocell Reduced-Power Bit | Allows selective disabling of unused macrocell resources to cut dynamic power without affecting functionality |
| Three Global Clock Pins | Supports independent clock domains for state machines, counters, and synchronous data paths within one device |
| Security Fuse Protection | Prevents unauthorized readback of configuration bitstream while preserving accessible 16-bit User Signature |
Applications
| Industrial PLC I/O Expansion | Legacy Bus Interface Bridge |
|---|---|
Use Scenario: Adding isolated digital I/O channels to a modular PLC backplane using 24V logic levels and optocoupled inputs. IC Role / Device Role / Timing Role: CPLD implements glue logic for address decoding, strobe generation, and level-shifted handshake signaling between microcontroller and peripheral modules. Use Value: Replaces discrete 74-series logic and reduces BOM count by >80%; 5 µA standby current extends battery backup runtime in fail-safe monitoring circuits. |
Use Scenario: Interfacing an FPGA-based video processor to a legacy ISA-bus host controller in medical imaging equipment. IC Role / Device Role / Timing Role: Acts as protocol translator and timing adapter, synchronizing asynchronous ISA cycles to internal clock domain and managing WAIT signal assertion. Use Value: Enables reuse of aging ISA peripherals without redesigning the host CPU subsystem; -20 speed grade ensures setup/hold timing closure at 8 MHz ISA bus rates. |
| Power-Conscious State Machine Controller | Field-Upgradeable Sensor Signal Conditioning |
Use Scenario: Managing sequencing and fault response in a solar charge controller operating in remote off-grid installations. IC Role / Device Role / Timing Role: Implements finite-state machine for MPPT algorithm coordination, MOSFET gate drive timing, and overvoltage lockout with precise nanosecond-level register delays. Use Value: 77 MHz registered operation supports real-time control loops; automatic standby cuts quiescent draw below 10 µA during nighttime dormancy. |
Use Scenario: Configurable analog front-end logic for multi-sensor environmental monitoring nodes deployed in wireless sensor networks. IC Role / Device Role / Timing Role: Routes ADC data streams, applies digital filtering coefficients, and formats packets for RF transmission based on field-programmed configuration. Use Value: JTAG ISP allows remote firmware updates via bootloader; security fuse prevents tampering with calibration logic in certified measurement devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATF1504ASV-20AC44 | Same logic architecture and pinout, but lacks automatic 5 µA standby - uses pin-controlled 100 µA standby instead | Suitable where deterministic power-down control is preferred over autonomous low-power entry | Select ATF1504ASV-20AC44 only if manual PD pin management aligns with system power sequencing requirements |
| XC9536XL-10VQ44C | Xilinx CoolRunner-II device; 36 macrocells, 10 ns speed grade, 2.7–3.6V supply, different JTAG BSDL and fitter toolchain | Better suited for high-volume consumer applications requiring lower unit cost and longer lifecycle availability | Choose XC9536XL-10VQ44C when migrating legacy designs with <36 macrocell usage and needing long-term supply assurance beyond Microchip's CPLD roadmap |
Compared with ATF1504ASVL-20AC44, the ATF1504ASV-20AC44 trades autonomous low-power entry for explicit PD pin control, while the XC9536XL-10VQ44C offers higher speed and broader commercial support but halves macrocell count - making ATF1504ASVL-20AC44 optimal for industrial designs needing 64 macrocells with minimal standby current.
Availability
ATF1504ASVL-20AC44 is available at Aetrix Electronics and suitable for industrial PLC expansion, legacy bus bridging, and power-conscious state-machine controllers requiring stable component supply across extended production lifecycles.
Supply support for ATF1504ASVL-20AC44 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, with emphasis on industrial, automotive, and aerospace reliability standards.
The ATF1504ASVL series belongs to Microchip's legacy electrically-erasable CPLD family, designed specifically for replacing TTL/SSI/MSI logic and enabling field-upgradable control logic in harsh-environment systems.
FAQ
What is the difference between ATF1504ASVL-20AC44 and ATF1504ASV-20AC44?
The ATF1504ASVL-20AC44 features automatic 5 µA standby mode triggered by inactivity, whereas the ATF1504ASV-20AC44 requires explicit pin control (PD1/PD2) to enter 100 µA standby. Both share identical logic resources, pinout, and timing grade (-20), but the 'L' suffix denotes autonomous low-power capability. The ATF1504ASVL-20AC44 is preferred for battery-backed or energy-harvesting applications where unattended power optimization is critical.
Does ATF1504ASVL-20AC44 support JTAG boundary-scan testing?
Yes, ATF1504ASVL-20AC44 fully supports IEEE Std. 1149.1a-1993 boundary-scan testing via its dedicated TDI, TMS, TCK, and TDO pins. Each I/O and input pin includes a boundary-scan cell (BSC), enabling interconnect testing, in-system programming, and visibility into internal logic states without physical probe access. JTAG functionality is enabled by default unless disabled in the design file.
What package type does ATF1504ASVL-20AC44 use?
ATF1504ASVL-20AC44 uses a 44-lead PLCC (plastic leaded chip carrier) package, measuring 16.59 mm × 16.59 mm with J-shaped leads for through-hole mounting. This package is distinct from the 44-lead TQFP and 100-lead TQFP variants in the same family and is explicitly designated by the 'C44' suffix in the part number. It supports industrial temperature operation and RoHS compliance.
Can ATF1504ASVL-20AC44 be programmed in-system after soldering?
Yes, ATF1504ASVL-20AC44 supports full in-system programming (ISP) via its 4-pin JTAG interface. No socket or UV eraser is required - programming can be performed directly on the PCB using standard SVF files and Microchip's ProChip Designer or third-party tools compliant with IEEE 1149.1. ISP enables field updates, design validation iterations, and post-manufacturing configuration without device removal.
What is the maximum operating frequency for registered logic in ATF1504ASVL-20AC44?
The ATF1504ASVL-20AC44 supports registered operation up to 77 MHz, as guaranteed by its -20 speed grade. This maximum frequency applies to logic paths using global clock inputs (GCLK1–GCLK3) with all macrocells configured in registered mode and reduced-power bits disabled. AC timing parameters such as tCNT (13 ns minimum clock period) and fCNT (76.9 MHz max) are validated under industrial temperature and 3.3V supply conditions.
ATF1504ASVL-20AC44 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TQFP (10x10)
ATF1504ASVL-20AC44 FAQ
1.How can I place an order for ATF1504ASVL-20AC44 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1504ASVL-20AC44 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-20AC44 reliable?
The price and inventory of ATF1504ASVL-20AC44 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1504ASVL-20AC44 is usually 5 days.
3.What payment methods are accepted for ATF1504ASVL-20AC44?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1504ASVL-20AC44 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1504ASVL-20AC44?
ATF1504ASVL-20AC44 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1504ASVL-20AC44 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-20AC44?
For technical support, including ATF1504ASVL-20AC44 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1504ASVL-20AC44 requirements.
6.How does Aetrix verify that ATF1504ASVL-20AC44 is sourced from the original manufacturer or authorized distributors?
All ATF1504ASVL-20AC44 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-20AC44 meets industry standards.
7.What is the process for return or replacement of ATF1504ASVL-20AC44?
All ATF1504ASVL-20AC44 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1504ASVL-20AC44, 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-20AC44 part is unused and in its original packaging.
Return procedure for ATF1504ASVL-20AC44:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1504ASVL-20AC44 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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