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Microchip Technology ATF1504ASL-25JI68
- Part No.:
- ATF1504ASL-25JI68
- Manufacturer:
- Microchip Technology
- Package:
- 68-LCC (J-Lead)
- Datasheet:
-
ATF1504ASL-25JI68.pdf
- Description:
- IC CPLD 64MC 25NS 68PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,246
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Product details
Overview
ATF1504ASL-25JI68 from Microchip (formerly Atmel) is a high-density, electrically-erasable Complex Programmable Logic Device (CPLD) with 64 macrocells, 5 product terms per macrocell (expandable to 40), 7.5 ns pin-to-pin delay, and support for 125 MHz registered operation. It features JTAG-based in-system programmability, three global clock inputs, and operates across industrial temperature range (–40°C to +85°C) in a 68-pin PLCC package - used in legacy PCI-compliant control logic, board-level glue logic consolidation, and reconfigurable digital interface adaptation.
For engineers reviewing the ATF1504ASL-25JI68 datasheet, ATF1504ASL-25JI68 pinout, ATF1504ASL-25JI68 application, or ATF1504ASL-25JI68 equivalent, key selection criteria include its 68-pin PLCC mechanical compatibility, 3.3V/5V I/O flexibility, JTAG boundary-scan compliance (IEEE 1149.1a), PCI electrical support, and power-down mode via PD1/PD2 pins - all critical for industrial control retrofitting and long-lifecycle embedded system maintenance.
Technical Context
The ATF1504ASL-25JI68 implements a hierarchical CPLD architecture with four logic blocks, each fed by a 40-signal global bus carrying all I/O, dedicated input, and buried macrocell feedback signals. Its macrocell supports D/T/latch flip-flops, programmable output slew rate, open-collector option, and combinatorial outputs with registered feedback - enabling efficient state machine and wide-decoder implementation.
It integrates IEEE 1149.1a-compliant JTAG boundary-scan test logic with dedicated TDI/TDO/TMS/TCK pins, supports security fuse programming to prevent unauthorized copying, and includes 16-bit user-accessible signature memory. The "L" suffix denotes automatic µA standby and edge-controlled power-down capability, validated for industrial temperature operation with VCCIO = 3.0–3.6V or 4.5–5.5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 64 macrocells - provides gate count equivalent to ~1500 usable gates for medium-complexity glue logic replacement. |
| Pin-to-pin Delay | 7.5 ns (–25 speed grade) - enables reliable timing closure at up to 100 MHz system clock rates in registered paths. |
| Max Registered Frequency | 125 MHz - supports high-speed synchronous control in industrial I/O modules and data acquisition front-ends. |
| I/O Voltage Support | 3.3V or 5.0V - allows direct interfacing with mixed-voltage legacy systems without level-shifting components. |
| Power-down Current | <10 mA - reduces standby power in battery-backed or energy-sensitive applications when PD1/PD2 asserted. |
| Data Retention | 20 years - ensures nonvolatile configuration persistence across equipment service life without refresh. |
| ESD Protection | 2000V HBM - meets industrial handling robustness requirements for field-replaceable modules. |
Pinout & Package
ATF1504ASL-25JI68 is housed in a 68-lead Plastic Leaded Chip Carrier (PLCC) package with 2.54 mm pitch, 27.94 mm × 27.94 mm body size, and JEDEC MS-026AC compliant footprint. Pin 1 is marked by corner notch; device is lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–10, 12–26, 28–43, 45–68 | I/O or dedicated input | Bi-directional logic pins supporting configurable slew rate, open-collector, and pin-keeper; up to 68 usable I/Os depending on configuration. |
| 11, 27 | PD1 / PD2 | Active-high power-down control inputs - assert either to enter sub-10 mA standby; disables clocking but retains register and output states. |
| 44, 45 | GCLK1 / GCLK2 | Dedicated global clock inputs - drive all macrocells synchronously; also configurable as OE1/OE2 or general-purpose inputs. |
| 46 | GCLR | Global asynchronous clear input - resets all registers simultaneously; may be OR'd with product-term signal for conditional reset. |
| 47 | GCLK3 / I/O | Third global clock input or bi-directional I/O - enables triple-clock domain designs (e.g., input sampling, core logic, output staging). |
| 50, 53, 56, 59 | TCK / TMS / TDI / TDO | JTAG test access port - enables boundary-scan testing, ISP programming, and BSDL-based verification without removing device from PCB. |
| 33, 36, 49, 52, 61, 64 | VCCIO | I/O power supply pins - must be tied to same 3.3V or 5V rail; decoupling required per pin per datasheet layout guidelines. |
| 34, 40, 55, 60, 65 | GND | Ground connections - multiple low-inductance return paths essential for noise immunity in high-speed CPLD operation. |
| 35, 48, 51, 54, 57, 62, 63, 66, 67, 68 | VCCINT | Core logic power supply - requires clean 5.0V ±10% (industrial) or 5.0V ±5% (commercial); separate from VCCIO. |
Key Features
| Feature | Design Value |
|---|---|
| In-system programmability (ISP) | Enables field firmware updates via standard JTAG interface without device removal - critical for deployed industrial controllers. |
| Programmable pin-keeper circuits | Eliminates need for external pull-ups on unused I/Os, reducing BOM cost and board space while preventing floating-input-induced shoot-through current. |
| Three independent global clocks | Supports multi-domain timing architectures - e.g., isolated input capture, internal processing, and output synchronization - without external clock muxing. |
| PCI-compliant output drivers | Meets PCI specification for sink/source current and skew, allowing direct connection to PCI bus signals without external buffers in add-in card designs. |
| Reduced-power bit per macrocell | Allows selective power gating of unused logic sections - lowers dynamic power by up to 40% in partial-utilization applications like protocol translators. |
| Input transition detection (ITD) | Hardware-accelerated edge detection on global clocks, inputs, and I/Os - offloads timing-critical interrupt generation from host MCU. |
Applications
| Industrial PLC I/O Expansion | Legacy System Glue Logic Replacement |
|---|---|
Use Scenario: Adding isolated digital input/output channels to programmable logic controller backplanes using existing 5V TTL or 3.3V LVTTL signaling. IC Role / Device Role / Timing Role: Configurable logic fabric implementing debounce, latching, address decoding, and bus arbitration between CPU and peripheral modules. Use Value: Eliminates 12+ discrete SSI/MSI ICs; reduces PCB area by >60%; supports in-field reconfiguration for different sensor/actuator types via ISP. |
Use Scenario: Replacing obsolete PAL/GAL devices in avionics maintenance panels, medical diagnostic equipment, and telecom line cards where redesign is cost-prohibitive. IC Role / Device Role / Timing Role: Pin-compatible functional replacement providing identical Boolean logic with enhanced timing margin and nonvolatile storage. Use Value: Restores supply chain continuity; extends product lifecycle beyond EOL; leverages same PCB footprint and schematic symbols. |
| PCI Add-in Card Control Logic | Reconfigurable Sensor Interface Adapter |
Use Scenario: Managing configuration, status reporting, and interrupt routing in PCI-based data acquisition cards operating in industrial PC chassis. IC Role / Device Role / Timing Role: PCI bus master interface logic with address/data multiplexing, parity generation, and command decode - compliant with PCI v2.2 electrical specs. Use Value: Meets PCI sink/source current requirements without external drivers; achieves <1 ns inter-output skew for reliable strobe timing. |
Use Scenario: Adapting heterogeneous sensor outputs (RS-485, SPI, parallel TTL) to a unified microcontroller interface in environmental monitoring gateways. IC Role / Device Role / Timing Role: Protocol translation engine with programmable baud-rate dividers, framing logic, and level-shifted I/O banks. Use Value: Supports hot-swappable sensor modules; enables firmware-upgradable interface definitions without hardware change. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD-based logic integration applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCR3064XL-10VQG44C | 64 macrocells, 44-pin VQFP, 10 ns tPD, 3.3V-only I/O, no PD pins, lower ICC1 (25 µA standby) | Lacks industrial temp rating and PLCC package; unsuitable for through-hole legacy upgrades | Prefer for new surface-mount designs requiring ultra-low standby power and smaller footprint. |
| EPM3064ATC100-10N | 64 macrocells, 100-pin TQFP, 10 ns tPD, 5V-tolerant I/O, no JTAG boundary-scan, Intel MAX architecture | No IEEE 1149.1 support; incompatible fitter toolchain; higher ICC1 (50 mA standby) | Select only if existing design uses Intel Quartus flow and board already has 100-pin TQFP footprint. |
Compared with XCR3064XL-10VQG44C and EPM3064ATC100-10N, ATF1504ASL-25JI68 uniquely combines industrial temperature operation, 68-pin PLCC mechanical compatibility, JTAG boundary-scan testability, and dual-voltage I/O - making it the sole viable option for maintaining legacy through-hole systems requiring field-programmable logic with full debug and test infrastructure.
Availability
ATF1504ASL-25JI68 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, legacy system glue logic replacement, and PCI add-in card control logic requiring stable component supply across extended product lifecycles.
Supply support for ATF1504ASL-25JI68 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 acquired Atmel in 2016 and maintains full support for the ATF1504AS(L) CPLD family, including datasheets, programming tools, and long-term supply commitments for industrial-grade variants.
The ATF1504AS(L) series was designed for high-reliability, field-upgradable digital control in industrial automation, telecommunications infrastructure, and defense electronics - emphasizing nonvolatile configuration, JTAG testability, and mixed-voltage interoperability.
FAQ
What is the operating temperature range for the ATF1504ASL-25JI68?
The ATF1504ASL-25JI68 is rated for industrial temperature operation from –40°C to +85°C ambient, validated with VCCIO = 3.0–3.6V or 4.5–5.5V and full AC/DC parameter compliance across this range - making it suitable for deployment in harsh environments such as factory floors and outdoor telecom cabinets.
Does the ATF1504ASL-25JI68 support in-system programming (ISP)?
Yes, the ATF1504ASL-25JI68 supports IEEE 1149.1-compliant in-system programming via its dedicated TDI/TDO/TMS/TCK pins. Programming can be performed without removing the device from the PCB using standard SVF files, enabling field firmware updates and rapid prototyping iterations - a core capability confirmed in the official Microchip datasheet Rev. 0950N.
What package type does the ATF1504ASL-25JI68 use?
The ATF1504ASL-25JI68 uses a 68-lead Plastic Leaded Chip Carrier (PLCC) package, as indicated by the "J" in the part number suffix. This through-hole package features a 27.94 mm × 27.94 mm body, 2.54 mm pin pitch, and corner-notch pin 1 marking - matching legacy PLCC footprints used in industrial control and telecom hardware.
Can the ATF1504ASL-25JI68 operate with both 3.3V and 5V I/O interfaces?
Yes, the ATF1504ASL-25JI68 supports dual-voltage I/O operation: VCCIO may be set to either 3.0–3.6V or 4.5–5.5V, allowing direct interfacing with both 3.3V LVTTL and 5V TTL logic families without external level shifters - a feature explicitly specified in the DC Characteristics table of the Microchip datasheet.
What is the purpose of the PD1 and PD2 pins on the ATF1504ASL-25JI68?
The PD1 and PD2 pins on the ATF1504ASL-25JI68 serve as active-high power-down control inputs. When either pin is driven high, the device enters a low-power mode drawing less than 10 mA while retaining all register and output states - enabling energy-efficient operation in battery-backed or thermally constrained applications without losing system context.
ATF1504ASL-25JI68 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF15xx
- Package/Case:
- 68-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:
- 25 ns
- Voltage Supply - Internal:
- 4.5V ~ 5.5V
- Number of Logic Elements/Blocks:
- -
- Number of Macrocells:
- 64
- Number of Gates:
- -
- Number of I/O:
- 48
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 68-PLCC (24.23x24.23)
ATF1504ASL-25JI68 FAQ
1.How can I place an order for ATF1504ASL-25JI68 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1504ASL-25JI68 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 ATF1504ASL-25JI68 reliable?
The price and inventory of ATF1504ASL-25JI68 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1504ASL-25JI68 is usually 5 days.
3.What payment methods are accepted for ATF1504ASL-25JI68?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1504ASL-25JI68 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1504ASL-25JI68?
ATF1504ASL-25JI68 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1504ASL-25JI68 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 ATF1504ASL-25JI68?
For technical support, including ATF1504ASL-25JI68 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1504ASL-25JI68 requirements.
6.How does Aetrix verify that ATF1504ASL-25JI68 is sourced from the original manufacturer or authorized distributors?
All ATF1504ASL-25JI68 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 ATF1504ASL-25JI68 meets industry standards.
7.What is the process for return or replacement of ATF1504ASL-25JI68?
All ATF1504ASL-25JI68 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1504ASL-25JI68, 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 ATF1504ASL-25JI68 part is unused and in its original packaging.
Return procedure for ATF1504ASL-25JI68:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1504ASL-25JI68 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
-
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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