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Microchip Technology ATF1504AS-15JI68
- Part No.:
- ATF1504AS-15JI68
- Manufacturer:
- Microchip Technology
- Package:
- 68-LCC (J-Lead)
- Datasheet:
-
ATF1504AS-15JI68.pdf
- Description:
- IC CPLD 64MC 15NS 68PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,763
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Product details
Overview
ATF1504AS-15JI68 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 operates up to 125 MHz registered frequency, supports JTAG-based in-system programming (ISP), and targets logic consolidation in industrial control, legacy interface bridging, and board-level glue logic applications.
For engineers reviewing the ATF1504AS-15JI68 datasheet, ATF1504AS-15JI68 pinout, ATF1504AS-15JI68 application, or ATF1504AS-15JI68 equivalent, key selection criteria include its 68-pin PLCC package, 5V/3.3V I/O compatibility, PCI-compliant drive capability, IEEE 1149.1 boundary-scan support, and programmable power-down mode with PD1/PD2 control.
Technical Context
The ATF1504AS-15JI68 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 to macrocells, enabling high logic utilization and pin-locked design revisions.
Each macrocell integrates five product terms, OR/XOR/cascade logic, a D/T/latch-configurable flip-flop, and flexible output enable with slew-rate control. Global clock inputs (GCLK1–GCLK3), input transition detection (ITD), and programmable pin-keeper circuits support robust timing-critical and low-noise system integration.
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. |
| Pin-to-pin Delay | 7.5 ns (–15 speed grade) - enables reliable operation in 100+ MHz system clock domains with margin. |
| Max Registered Frequency | 125 MHz - supports high-speed synchronous logic including state machines and data path control. |
| I/O Voltage Support | 3.3 V or 5.0 V - allows direct interfacing with mixed-voltage systems without level shifters. |
| Power-down Current | <10 mA in PD mode - reduces standby power in battery-backed or energy-sensitive embedded systems. |
| JTAG Compliance | IEEE Std. 1149.1-1990/1149.1a-1993 - enables standardized boundary-scan test and ISP across production and field updates. |
| Data Retention | 20 years - ensures long-term configuration integrity in unattended industrial deployments. |
Pinout & Package
ATF1504AS-15JI68 is packaged in a 68-lead Plastic Leaded Chip Carrier (PLCC) with 22.2 mm × 22.2 mm body size and 1.27 mm pitch. The package is lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–10, 12–26, 28–43, 45–68 | Bi-directional I/O / Macrocell I/O | Configurable as input, combinatorial output, or registered output; supports programmable slew rate and open-collector mode. |
| 11, 27, 44 | GCLK1 / GCLK2 / GCLK3 | Dedicated global clock inputs - can drive all macrocells synchronously; also configurable as general-purpose inputs or OE signals. |
| 46, 47 | PD1 / PD2 | Pin-controlled power-down inputs - assert high to enter sub-10 mA standby; disables clock/data propagation but retains register states. |
| 48, 49 | GCLR / OE1 | Global clear (asynchronous reset) and output enable 1 - individually assignable per macrocell via product-term routing. |
| 50, 51 | VCCINT / VCCIO | Core logic supply (5 V only) and I/O supply (3.3 V or 5 V) - decoupling required per JEDEC PLCC guidelines. |
| 52–55, 57–60, 62–65 | GND | Ground pins - distributed for noise reduction; must be connected to solid ground plane. |
| 66–68, 1 | TDI / TMS / TCK / TDO | JTAG test access port - supports boundary-scan testing and ISP; TMS/TDI have optional internal pull-ups. |
Key Features
| Feature | Design Value |
|---|---|
| In-system programmability (ISP) | Enables field firmware updates and design iteration without device removal; uses standard 4-pin JTAG interface. |
| Programmable pin-keeper circuits | Eliminates need for external pull-up/down resistors on unused I/Os, reducing BOM cost and board space while preventing floating-input-induced noise. |
| Per-macrocell reduced-power bit | Allows selective power gating of inactive logic sections, lowering dynamic current consumption without affecting timing-critical paths. |
| PCI-compliant output drivers | Meets PCI electrical specs (high sink/source current, low skew) without external buffers - simplifies add-in card and motherboard designs. |
| Three global clock inputs with ITD | Supports multi-domain clocking and glitch-free edge detection on clocks, inputs, and I/Os for robust asynchronous event capture. |
Applications
| Industrial Control Logic | Legacy Bus Interface Bridging |
|---|---|
|
Use Scenario: Replacing discrete TTL logic and PALs in PLC I/O modules and motion controller sequencers requiring deterministic timing and long-life reliability. IC Role / Device Role / Timing Role: Glue logic CPLD implementing address decoding, interrupt arbitration, and state-machine-based sequencing with sub-10 ns timing precision. Use Value: Reduces component count by >70% versus discrete solutions while maintaining full reprogrammability for firmware-driven feature updates. |
Use Scenario: Adapting ISA, VME, or NuBus peripherals to modern microcontroller buses in test equipment and medical imaging subsystems. IC Role / Device Role / Timing Role: Protocol translator and bus arbitrator with programmable setup/hold timing, signal inversion, and burst-mode handshaking. Use Value: Enables reuse of legacy IP cores and hardware without PCB redesign; supports both 3.3 V and 5 V signaling domains natively. |
| PCI Add-in Card Configuration | Power-Up Reset Management |
|
Use Scenario: Implementing configuration logic, IDSEL decoding, and BAR mapping in PCI expansion cards for industrial PCs and embedded servers. IC Role / Device Role / Timing Role: PCI-compliant interface controller managing DEVSEL#, FRAME#, IRDY#, TRDY#, and parity generation. Use Value: Meets PCI specification DC/AC requirements out-of-the-box; eliminates need for external bus transceivers or timing compensation circuits. |
Use Scenario: Ensuring deterministic initialization of FPGA-based digital signal processors and microcontroller peripherals after cold/warm reset cycles. IC Role / Device Role / Timing Role: Synchronized reset distributor with programmable hysteresis (Small/Large VRST options) and register initialization guarantee. Use Value: Prevents metastability in downstream logic; supports monotonic VCC ramp requirements and eliminates external reset IC dependency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCR3064XL-10VQG44C | 64 macrocells, 10 ns delay, 44-pin VQFP, 3.3 V only, no PD pins, lower ICC1 (25 µA standby) | Better suited for low-power portable designs; lacks dual-voltage I/O and dedicated power-down control. | Select when board space is constrained and 3.3 V-only operation is acceptable; not drop-in due to package and voltage mismatch. |
| EPM3064ATC100-10N | 64 macrocells, 10 ns delay, 100-pin TQFP, 3.3 V core/I/O, JTAG + AS mode, higher fMAX (125 MHz) | Targets high-volume consumer applications; requires external configuration device for AS mode; no pin-keeper or ITD features. | Prefer for cost-sensitive, high-volume production where JTAG ISP is secondary to parallel configuration; different pinout and power architecture. |
Compared with XCR3064XL-10VQG44C and EPM3064ATC100-10N, the ATF1504AS-15JI68 uniquely combines 5 V/3.3 V I/O flexibility, integrated power-down control via PD pins, and input transition detection - making it optimal for industrial upgrades requiring mixed-voltage interoperability and deterministic low-power entry/exit.
Availability
ATF1504AS-15JI68 is available at Aetrix Electronics and suitable for industrial control logic, legacy bus interface bridging, and PCI add-in card configuration requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for ATF1504AS-15JI68 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 obsolescence management.
The ATF1504AS series was designed for high-reliability, reconfigurable logic consolidation in industrial, telecom, and military-aerospace systems where in-system programmability, mixed-voltage I/O, and deterministic timing are critical.
FAQ
What is the operating temperature range for the ATF1504AS-15JI68?
The ATF1504AS-15JI68 is rated for the industrial temperature range of –40°C to +85°C, as confirmed by its "I" suffix and datasheet Section 11. This makes it suitable for deployment in harsh environments such as factory automation controllers, outdoor communications equipment, and transportation infrastructure systems where thermal stability is essential. The ATF1504AS-15JI68 maintains full AC/DC specifications across this range without derating.
Does the ATF1504AS-15JI68 support both 3.3 V and 5 V I/O operation?
Yes, the ATF1504AS-15JI68 supports dual-voltage I/O: VCCIO may be set to either 3.0–3.6 V or 4.75–5.25 V, allowing direct interfacing with both 3.3 V and 5 V logic families without external level shifters. This capability is explicitly defined in the DC Characteristics table (Section 11) and applies to all 68 I/O pins. The ATF1504AS-15JI68's VCCINT remains fixed at 5 V.
How does the power-down mode function on the ATF1504AS-15JI68?
The ATF1504AS-15JI68 enters power-down mode when either PD1 or PD2 pin is driven high, reducing supply current to under 10 mA while latching all internal register and output states. Inputs (except PD pins) are blocked, and pin-keeper circuits maintain I/O levels. This mode is enabled during design compilation and is fully documented in Section 15 of the ATF1504AS-15JI68 datasheet.
Is JTAG boundary-scan supported on the ATF1504AS-15JI68?
Yes, the ATF1504AS-15JI68 fully supports IEEE Std. 1149.1-1990 and 1149.1a-1993 boundary-scan testing via its dedicated TDI, TMS, TCK, and TDO pins. Each I/O and input pin has an associated boundary-scan cell (BSC), and the device includes a compliant BSDL file. JTAG functionality is programmable - if disabled, those pins become general-purpose I/Os.
What packaging and lead finish does the ATF1504AS-15JI68 use?
The ATF1504AS-15JI68 is supplied in a 68-lead Plastic Leaded Chip Carrier (PLCC) package with nickel-palladium-gold (NiPdAu) lead finish, RoHS-compliant and lead-free. Its dimensions are 22.2 mm × 22.2 mm with 1.27 mm pitch, and it is qualified for industrial temperature operation. This package is socket-compatible with standard PLCC-68 sockets used in legacy industrial hardware.
ATF1504AS-15JI68 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:
- 15 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)
ATF1504AS-15JI68 FAQ
1.How can I place an order for ATF1504AS-15JI68 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1504AS-15JI68 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-15JI68 reliable?
The price and inventory of ATF1504AS-15JI68 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1504AS-15JI68 is usually 5 days.
3.What payment methods are accepted for ATF1504AS-15JI68?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1504AS-15JI68 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1504AS-15JI68?
ATF1504AS-15JI68 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1504AS-15JI68 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-15JI68?
For technical support, including ATF1504AS-15JI68 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1504AS-15JI68 requirements.
6.How does Aetrix verify that ATF1504AS-15JI68 is sourced from the original manufacturer or authorized distributors?
All ATF1504AS-15JI68 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-15JI68 meets industry standards.
7.What is the process for return or replacement of ATF1504AS-15JI68?
All ATF1504AS-15JI68 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1504AS-15JI68, 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-15JI68 part is unused and in its original packaging.
Return procedure for ATF1504AS-15JI68:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1504AS-15JI68 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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