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Microchip Technology ATF1504AS-7JC68
- Part No.:
- ATF1504AS-7JC68
- Manufacturer:
- Microchip Technology
- Package:
- 68-LCC (J-Lead)
- Datasheet:
-
ATF1504AS-7JC68.pdf
- Description:
- IC CPLD 64MC 7.5NS 68PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,790
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Product details
Overview
ATF1504AS-7JC68 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), and 7.5 ns pin-to-pin delay. It supports registered operation up to 125 MHz, operates at 5.0 V or 3.3 V I/O, and features JTAG-based in-system programmability (ISP) compliant with IEEE 1149.1. It is used in legacy industrial control logic consolidation and PCI-compliant interface bridging.
For engineers reviewing the ATF1504AS-7JC68 datasheet, ATF1504AS-7JC68 pinout, ATF1504AS-7JC68 application, or ATF1504AS-7JC68 equivalent, key selection criteria include its 68-pin PLCC package, 5V/3.3V I/O flexibility, JTAG boundary-scan test support, PCI-compliant drive capability, and programmable power-down via PD1/PD2 pins.
Technical Context
The ATF1504AS-7JC68 implements a hierarchical CPLD architecture with four logic blocks, each fed by a global bus carrying all 68 I/O signals plus 64 buried macrocell feedbacks. Its switch matrix selects up to 40 signals per block for routing into macrocells.
Each macrocell integrates five product-term AND-OR logic, XOR for arithmetic/comparison, D/T/latch-configurable flip-flop with global or product-term clocking, and flexible output enable controlled by dedicated OE pins or individual product terms. Three global clock inputs (GCLK1–GCLK3) support synchronous design with ITD circuits for input transition detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 64 macrocells - provides gate count equivalent to ~1500–2000 usable gates for TTL/SSI/MSI replacement |
| Timing Performance | 7.5 ns max pin-to-pin delay (–7 speed grade) - enables reliable operation at 125 MHz registered frequency |
| I/O Voltage Support | 3.3 V or 5.0 V - allows direct interfacing with mixed-voltage systems without level shifters |
| Power Management | 10 µA standby current ("L" version) and pin-controlled 1 mA power-down - reduces idle power in battery-backed or low-power industrial modules |
| Programmability | In-system programmable via IEEE 1149.1 JTAG - permits field firmware updates and eliminates socket programming |
| Reliability | 10,000 program/erase cycles and 20-year data retention - suitable for long-lifecycle industrial deployments |
| Compliance | PCI-compliant outputs and IEEE 1149.1a boundary-scan - meets requirements for plug-in card validation and system-level testability |
Pinout & Package
ATF1504AS-7JC68 is housed in a 68-lead Plastic Leaded Chip Carrier (PLCC) package with 0.050" lead pitch and JEDEC-standard footprint. The package is RoHS-compliant and rated for industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–68 (see top view) | Bi-directional I/O or dedicated function | 64 general-purpose I/O pins; 4 dedicated inputs (GCLK1, GCLK2/OE2, GCLR, OE1); PD1 and PD2 serve as power-down control inputs when enabled |
| GCLK1 / GCLK2 / GCLK3 | Global clock input | Three independent global clock sources - enable multi-clock domain designs and reduce routing congestion |
| GCLR | Global asynchronous clear | Asynchronous reset signal for all macrocell flip-flops - ensures deterministic state initialization on power-up or fault recovery |
| OE1 / OE2 | Output enable control | Dedicated output enable pins - allow group-level tristate control without consuming product terms or macrocell resources |
| PD1 / PD2 | Power-down control | Active-high pins that force device into <10 mA power-down mode - preserves register and output states while blocking all inputs except PD pins |
| TCK / TMS / TDI / TDO | JTAG test access port | IEEE 1149.1-compliant boundary-scan and ISP interface - enables board-level test, debug, and reprogramming without physical access to device |
Key Features
| Feature | Design Value |
|---|---|
| Flexible macrocell configuration | D/T/latch flip-flop, programmable output slew rate, open-collector option, and buried registered feedback - enables precise timing control and logic reuse across diverse functions |
| Enhanced routing resources | 40-signal global bus + regional foldback bus - increases successful place-and-route yield for pin-locked revisions and complex combinatorial logic |
| Advanced power management | Per-macrocell reduced-power bit, automatic µA standby, and pin-keeper circuits - cuts dynamic and static power without sacrificing I/O integrity or signal stability |
| Security and traceability | Programmable security fuse + 16-bit user signature register - prevents unauthorized cloning while supporting revision tracking and project identification |
| PCI-compliant I/O | High-current drivers with low output skew - meets PCI electrical specs for add-in cards without external buffers or layout compromises |
Applications
| Industrial PLC I/O Expansion | Legacy Bus Interface Bridge |
|---|---|
Use Scenario: Adding discrete I/O points to programmable logic controllers in factory automation cabinets where space and thermal budget are constrained. IC Role / Device Role / Timing Role: Replaces multiple 74-series TTL chips and PALs to consolidate address decoding, strobe generation, and status multiplexing into a single reprogrammable logic unit. Use Value: Reduces BOM count by >70%, eliminates solder joint reliability risks from discrete logic, and enables field-upgradable I/O mapping via JTAG. |
Use Scenario: Interfacing ISA or VMEbus peripherals to modern microcontrollers in test equipment and medical devices requiring backward compatibility. IC Role / Device Role / Timing Role: Implements protocol translation, handshaking arbitration, and address filtering between mismatched bus timing domains. Use Value: Achieves sub-10 ns setup/hold margin using programmable delays and registered outputs, avoiding custom ASIC development. |
| PCI Add-in Card Control Logic | Power-Up State Machine Initialization |
Use Scenario: Managing configuration, reset sequencing, and interrupt routing on PCI-based data acquisition cards operating in noisy industrial environments. IC Role / Device Role / Timing Role: Serves as PCI-compliant glue logic with integrated high-drive outputs and boundary-scan test access for production validation. Use Value: Meets PCI electrical specifications without external drivers, reducing EMI and simplifying layout; JTAG scan chain validates interconnect pre-deployment. |
Use Scenario: Ensuring deterministic startup behavior in safety-critical embedded systems where metastability must be avoided during power ramp. IC Role / Device Role / Timing Role: Provides hysteresis-controlled power-up reset with configurable large/small threshold options and guaranteed register initialization. Use Value: Eliminates need for external RC reset circuits; large-hysteresis mode reduces ICC by hundreds of µA while ensuring robust reset assertion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD-based logic consolidation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCR3064XL-7VQG44C | 64 macrocells, 44-pin VQFP, 3.3 V only, 7.5 ns propagation, Xilinx CoolRunner-II architecture | Lacks PCI-compliant drive and 5 V I/O tolerance; requires external level shifting for mixed-voltage systems | Preferred for new 3.3 V-only designs with lower static power (25 µA typical) and smaller footprint |
| EPM3064ATC44-7 | 64 macrocells, 44-pin TQFP, 3.3 V core/5 V I/O tolerant, 7.5 ns, Intel MAX 3000A family | No JTAG boundary-scan; uses proprietary programming interface; no built-in power-down pin control | Suitable when JTAG test access is not required and legacy MAX toolchain familiarity exists |
Compared with ATF1504AS-7JC68, the XCR3064XL offers lower static power but sacrifices 5 V I/O and PCI compliance; the EPM3064ATC44 retains 5 V tolerance but lacks IEEE 1149.1 test infrastructure and programmable power-down - making ATF1504AS-7JC68 uniquely suited for field-serviceable, mixed-voltage industrial control.
Availability
ATF1504AS-7JC68 is available at Aetrix Electronics and suitable for industrial PLC upgrades, PCI add-in card manufacturing, and legacy bus interface bridging requiring stable component supply over extended product lifecycles.
Supply support for ATF1504AS-7JC68 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 family, including datasheets, programming tools, and long-term supply commitments for industrial-grade PLDs.
The ATF1504AS series was designed for high-reliability logic consolidation in industrial control, telecommunications infrastructure, and test equipment - emphasizing in-system programmability, mixed-voltage I/O, and IEEE-compliant testability.
FAQ
What is the operating voltage range for ATF1504AS-7JC68?
The ATF1504AS-7JC68 supports dual I/O voltage operation: 3.0–3.6 V for 3.3 V mode and 4.5–5.5 V for 5.0 V mode (industrial range). Core logic operates from VCCINT, which matches the selected I/O voltage. This dual-voltage capability allows direct interfacing with both legacy 5 V and modern 3.3 V subsystems without external level shifters - a key advantage in mixed-signal industrial designs where ATF1504AS-7JC68 is deployed.
Does ATF1504AS-7JC68 support JTAG boundary-scan testing?
Yes, ATF1504AS-7JC68 fully supports IEEE Std. 1149.1-1990 and 1149.1a-1993 boundary-scan testing. All 64 I/O pins and four dedicated inputs have dedicated boundary-scan cells (BSCs), enabling comprehensive board-level interconnect testing. The JTAG TAP controller is automatically reset at power-up, eliminating the need for a TRST pin. This capability is integral to production test flow for systems using ATF1504AS-7JC68 in mission-critical industrial hardware.
How does the power-down feature work on ATF1504AS-7JC68?
The ATF1504AS-7JC68 includes two dedicated power-down pins (PD1 and PD2). When either is driven high, the device enters a sub-10 mA power-down state while latching all internal register and output states. Inputs (except PD pins) are blocked, and pin-keeper circuits prevent floating. This feature is enabled in the design file and is especially valuable in battery-backed or thermally constrained applications where ATF1504AS-7JC68 must retain configuration during idle periods without compromising signal integrity.
Can ATF1504AS-7JC68 be used in PCI-compliant designs?
Yes, ATF1504AS-7JC68 is explicitly designed for PCI compliance, featuring high-current output drivers with low output-to-output skew and meeting PCI electrical specifications without external components. Its programmable drive strength and 5 V-tolerant I/O make it suitable for add-in card control logic in PCI-based data acquisition and instrumentation systems - a verified use case documented in Atmel's original application notes for ATF1504AS-7JC68.
What is the maximum number of product terms per macrocell in ATF1504AS-7JC68?
The ATF1504AS-7JC68 has five base product terms per macrocell, expandable up to 40 via cascade logic from neighboring macrocells. This expansion is implemented automatically by the fitter software and enables efficient synthesis of wide sum-of-products logic - critical for address decoders, state machine next-state logic, and complex combinatorial functions in designs utilizing ATF1504AS-7JC68 as the central glue logic element.
ATF1504AS-7JC68 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:
- 7.5 ns
- Voltage Supply - Internal:
- 4.75V ~ 5.25V
- Number of Logic Elements/Blocks:
- -
- Number of Macrocells:
- 64
- Number of Gates:
- -
- Number of I/O:
- 48
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 68-PLCC (24.23x24.23)
ATF1504AS-7JC68 FAQ
1.How can I place an order for ATF1504AS-7JC68 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1504AS-7JC68 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 ATF1504AS-7JC68 reliable?
The price and inventory of ATF1504AS-7JC68 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1504AS-7JC68 is usually 5 days.
3.What payment methods are accepted for ATF1504AS-7JC68?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1504AS-7JC68 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1504AS-7JC68?
ATF1504AS-7JC68 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1504AS-7JC68 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 ATF1504AS-7JC68?
For technical support, including ATF1504AS-7JC68 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1504AS-7JC68 requirements.
6.How does Aetrix verify that ATF1504AS-7JC68 is sourced from the original manufacturer or authorized distributors?
All ATF1504AS-7JC68 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 ATF1504AS-7JC68 meets industry standards.
7.What is the process for return or replacement of ATF1504AS-7JC68?
All ATF1504AS-7JC68 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1504AS-7JC68, 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 ATF1504AS-7JC68 part is unused and in its original packaging.
Return procedure for ATF1504AS-7JC68:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1504AS-7JC68 Tags
-
5M40ZE64C5N
Intel
-
ATF1502ASV-15AU44
Microchip Technology
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5M80ZE64C5N
Intel
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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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