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Microchip Technology ATF1504ASV-15AI44
- Part No.:
- ATF1504ASV-15AI44
- Manufacturer:
- Microchip Technology
- Package:
- 44-TQFP
- Datasheet:
-
ATF1504ASV-15AI44.pdf
- Description:
- IC CPLD 64MC 15NS 44TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,140
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Product details
Overview
ATF1504ASV-15AI44 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 JTAG-based in-system programmability. It integrates TTL/SSI/MSI logic replacement, PCI-compliant interface control, and industrial temperature operation (-40°C to +85°C).
For engineers reviewing the ATF1504ASV-15AI44 datasheet, ATF1504ASV-15AI44 pinout, ATF1504ASV-15AI44 application, or ATF1504ASV-15AI44 equivalent, key selection criteria include macrocell count (64), global clock support (3 pins), power-down capability via PD1/PD2, programmable slew rate, and IEEE 1149.1 boundary-scan compliance.
Technical Context
The ATF1504ASV-15AI44 implements a flexible macrocell architecture with five product terms per macrocell-expandable to 40 via cascade logic-and supports D/T/latch flip-flops with individually configurable clock, reset, and output enable. Its global bus feeds all 64 macrocells and I/Os, enabling high-utilization routing with up to 40 signals selected per logic block.
It features three dedicated global clock inputs (GCLK1–GCLK3), input transition detection (ITD) on clocks and I/Os, programmable pin-keeper circuits, and dual power-down modes: pin-controlled (PD1/PD2) and automatic standby (ATF1504ASVL variant). The -15 speed grade guarantees ≤15 ns pin-to-pin delay and 77 MHz maximum registered frequency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Macrocells | 64 - provides gate count equivalent to ~1000+ SSI/MSI logic gates for system integration |
| Pin-to-pin delay | 15 ns - enables timing-critical glue logic in 66 MHz PCI and legacy bus interfaces |
| Max registered frequency | 77 MHz - supports synchronous control logic for industrial microcontroller peripherals |
| Supply voltage | 3.0V–3.6V - compatible with 3.3V LVTTL/LVCMOS I/O domains without level shifting |
| JTAG compliance | IEEE Std. 1149.1-1990/1149.1a-1993 - enables boundary-scan test and ISP without board removal |
| Operating temperature | -40°C to +85°C - qualified for industrial automation and embedded control environments |
| Power-down current | ≤5 mA - reduces system idle power when PD1 or PD2 asserted high |
Pinout & Package
ATF1504ASV-15AI44 is packaged in 44-lead PLCC (Plastic Leaded Chip Carrier) with 1.27 mm pitch, 16.59 mm × 16.59 mm body, and JEDEC MS-026AC standard footprint. Pin 1 marked by corner notch; top view shown in datasheet DS20006185A-page 3.
| 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 data loading; configurable as logic I/O if JTAG disabled |
| 7 (TMS/I/O) | JTAG Test Mode Select / General I/O | Selects TAP controller state; retains full macrocell functionality (feedback, foldback) even when used as TMS |
| 26 (TCK/I/O) | JTAG Test Clock / General I/O | Drives TAP state transitions at up to 25 MHz; macrocell resources remain available when repurposed |
| 32 (TDO/I/O) | JTAG Test Data Output / General I/O | Serial output for scan-out; tri-stated during non-JTAG operation and fully usable as bidirectional I/O |
| 39 (GCLR/I) | Global Clear Input | Asynchronous reset for all 64 macrocell flip-flops; may be OR'd with product-term reset for selective clearing |
| 37 (GCLK1/I) | Global Clock Input 1 | Dedicated low-skew clock source for register synchronization; supports ITD for glitch-free edge detection |
| 35 (GCLK3/I/O) | Global Clock Input 3 / I/O | Configurable as clock or I/O; enables clock domain crossing or dynamic reconfiguration of timing paths |
| 5, 19 (PD1/I/O, PD2/I/O) | Power-Down Control / I/O | Asserting either pin high enters sub-5 mA power-down; disables logic but preserves output states and latch values |
Key Features
| Feature | Design Value |
|---|---|
| Programmable slew rate | Per-output control reduces EMI and signal integrity issues on long traces without external RC networks |
| Pin-keeper circuit | Eliminates need for external pull-ups on unused inputs/I/Os, cutting BOM cost and static power draw |
| Three global clock inputs | Enables multi-domain synchronous design (e.g., CPU interface + sensor sampling + display refresh) |
| Input Transition Detection (ITD) | Hardware edge detection on clocks, inputs, and I/Os replaces software polling in real-time interrupt generation |
| Buried registered feedback | Allows combinatorial output macrocells to retain internal latched state-enabling compact state machines |
| Security fuse | Prevents unauthorized read-back of configuration bitstream while preserving 16-bit user signature access |
Applications
| Industrial PLC I/O Expansion | Legacy Bus Interface Adapter |
|---|---|
Use Scenario: Adding isolated digital input/output channels to programmable logic controllers using discrete optocouplers and drivers. IC Role / Device Role / Timing Role: Glue logic CPLD implementing address decoding, strobe generation, and status multiplexing between CPU bus and peripheral modules. Use Value: 64 macrocells and 3.3V tolerance eliminate level shifters; 15 ns delay ensures compatibility with 25 MHz ISA-like timing budgets. | Use Scenario: Bridging modern microcontrollers to legacy parallel buses (e.g., PC/104, VME, or proprietary backplanes). IC Role / Device Role / Timing Role: Protocol translator managing handshaking, wait-state insertion, and address/data demultiplexing. Use Value: Three global clocks synchronize independent bus domains; JTAG ISP enables field firmware updates without hardware modification. |
| PCI-Compliant Peripheral Controller | Real-Time Sensor Hub Logic |
Use Scenario: Implementing custom PCI target devices such as data acquisition cards or motion control interfaces. IC Role / Device Role / Timing Role: PCI bus master/slave interface logic handling configuration space access, burst transfers, and parity checking. Use Value: PCI-compliance certification verified; 77 MHz registered operation meets 33 MHz PCI timing margins with margin. | Use Scenario: Aggregating and preprocessing data from multiple analog/digital sensors (e.g., temperature, pressure, encoder) before MCU ingestion. IC Role / Device Role / Timing Role: Synchronized sampling controller with timestamping, oversampling filters, and interrupt arbitration. Use Value: ITD circuits detect sensor edges without CPU overhead; pin-keeper holds sensor enable lines during MCU sleep modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCR3064XL-10VQ44C | 64 macrocells, 10 ns speed, 2.7–3.6V supply, CoolRunner-II architecture with lower static current (10 µA typical) | Lacks dedicated ITD and pin-keeper; requires external pull-ups; no automatic standby mode | Preferred for ultra-low-power battery-operated systems where dynamic power dominates |
| LC4064V-75TN44C | 64 macrocells, 7.5 ns speed, 3.3V-only, ispMACH 4000Z architecture with higher I/O drive (24 mA) | No JTAG boundary-scan; uses proprietary programming protocol; no security fuse | Chosen when maximum speed and high-current I/O drive are critical, and test infrastructure supports non-IEEE-1149.1 tools |
Compared with XCR3064XL-10VQ44C and LC4064V-75TN44C, the ATF1504ASV-15AI44 uniquely combines JTAG boundary-scan, integrated pin-keeper, and input transition detection-reducing external components and simplifying test/debug in industrial control designs.
Availability
ATF1504ASV-15AI44 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, legacy bus interface adapters, PCI-compliant peripheral controllers, and real-time sensor hub logic requiring stable component supply across extended product lifecycles.
Supply support for ATF1504ASV-15AI44 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 industrial, automotive, and communications markets with vertically integrated silicon and development tools.
The ATF1504ASV family delivers electrically-erasable CPLDs optimized for industrial-grade glue logic replacement, offering robust EEPROM-based configuration, JTAG ISP, and enhanced routing for pin-locked design iterations in harsh environments.
FAQ
What is the operating voltage range for the ATF1504ASV-15AI44?
The ATF1504ASV-15AI44 operates over a supply voltage range of 3.0V to 3.6V for both VCCIO and VCCINT rails. This 3.3V nominal range ensures compatibility with LVTTL and LVCMOS I/O standards without level translation. Operation outside this range may cause functional failure or permanent damage, as specified in Absolute Maximum Ratings (DS20006185A-page 8). The ATF1504ASV-15AI44 does not support 5V-tolerant I/O.
Does the ATF1504ASV-15AI44 support in-system programming (ISP)?
Yes, the ATF1504ASV-15AI44 supports IEEE 1149.1-compliant in-system programming via its four-pin JTAG interface (TDI, TMS, TCK, TDO). ISP allows full configuration bitstream loading and erasure without device removal from the PCB. The ATF1504ASV-15AI44 also supports boundary-scan testing in SAMPLE/PRELOAD, EXTEST, and HIGHZ modes. JTAG functionality is programmable-disabling it frees all four pins for general-purpose I/O use.
How many global clock inputs does the ATF1504ASV-15AI44 provide?
The ATF1504ASV-15AI44 provides three dedicated global clock inputs: GCLK1, GCLK2, and GCLK3. These pins are assigned to fixed locations in the 44-pin PLCC package (pins 37, 40, and 35 respectively) and offer low-skew distribution to all 64 macrocells. Each supports Input Transition Detection (ITD) for hardware-based edge-triggered interrupts, and any can serve as the clock source for individual macrocell flip-flops.
What power management features are implemented in the ATF1504ASV-15AI44?
The ATF1504ASV-15AI44 includes pin-controlled power-down (via PD1/PD2), programmable macrocell reduced-power mode, and optional VCC power-up reset with hysteresis selection. In power-down mode, supply current drops below 5 mA while preserving all register and output states. The reduced-power bit per macrocell cuts dynamic current, and pin-keeper circuits eliminate floating inputs-reducing system noise and DC leakage. The ATF1504ASV-15AI44 does not feature automatic standby like the ATF1504ASVL variant.
Can the JTAG pins on the ATF1504ASV-15AI44 be used as general-purpose I/Os?
Yes, the JTAG pins (TDI, TMS, TCK, TDO) on the ATF1504ASV-15AI44 can be reconfigured as general-purpose I/Os when JTAG functionality is disabled in the design file. Disabling JTAG releases all four pins for logic use while retaining full macrocell resources-including buried feedback and foldback product terms. However, doing so forfeits in-system programming and boundary-scan test capability unless an external programmer with parallel interface support is used.
ATF1504ASV-15AI44 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:
- 15 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)
ATF1504ASV-15AI44 FAQ
1.How can I place an order for ATF1504ASV-15AI44 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1504ASV-15AI44 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 ATF1504ASV-15AI44 reliable?
The price and inventory of ATF1504ASV-15AI44 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1504ASV-15AI44 is usually 5 days.
3.What payment methods are accepted for ATF1504ASV-15AI44?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1504ASV-15AI44 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1504ASV-15AI44?
ATF1504ASV-15AI44 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1504ASV-15AI44 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 ATF1504ASV-15AI44?
For technical support, including ATF1504ASV-15AI44 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1504ASV-15AI44 requirements.
6.How does Aetrix verify that ATF1504ASV-15AI44 is sourced from the original manufacturer or authorized distributors?
All ATF1504ASV-15AI44 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 ATF1504ASV-15AI44 meets industry standards.
7.What is the process for return or replacement of ATF1504ASV-15AI44?
All ATF1504ASV-15AI44 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1504ASV-15AI44, 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 ATF1504ASV-15AI44 part is unused and in its original packaging.
Return procedure for ATF1504ASV-15AI44:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1504ASV-15AI44 Tags
-
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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