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Microchip Technology ATF1504AS-15JC68
- Part No.:
- ATF1504AS-15JC68
- Manufacturer:
- Microchip Technology
- Package:
- 68-LCC (J-Lead)
- Datasheet:
-
ATF1504AS-15JC68.pdf
- Description:
- IC CPLD 64MC 15NS 68PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,289
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Product details
Overview
ATF1504AS-15JC68 from Microchip Technology (formerly Atmel) is a high-density, electrically-erasable Complex Programmable Logic Device (CPLD) with 64 macrocells, 7.5 ns pin-to-pin delay, and support for 125 MHz registered operation. It features in-system programmability via IEEE 1149.1 JTAG, three global clock inputs, and operates at 5.0 V with industrial temperature range (–40°C to +85°C). Used in legacy PCI-compliant control logic, board-level glue logic, and state-machine-based interface bridging.
For engineers reviewing the ATF1504AS-15JC68 datasheet, ATF1504AS-15JC68 pinout, ATF1504AS-15JC68 application, or ATF1504AS-15JC68 equivalent, this page delivers verified package mapping (68-pin PLCC), confirmed macrocell architecture (5 product terms per macrocell, expandable to 40), JTAG boundary-scan compliance, PCI electrical support, and real-world power-down behavior under PD1/PD2 control.
Technical Context
The ATF1504AS-15JC68 implements a hierarchical CPLD architecture with four logic blocks, each fed by a 68-signal global bus and regional foldback buses. Its macrocells support configurable D/T/latch flip-flops, individual output enable per macrocell, and programmable slew rate on all I/Os.
It integrates IEEE 1149.1a-compliant boundary-scan test logic with dedicated TDI/TDO/TMS/TCK pins, supports security fuse programming, and includes two bytes of user-accessible signature memory. The -15 speed grade guarantees tPD1 ≤ 7.5 ns and fCNT ≤ 125 MHz under industrial conditions with VCC = 5.0 V ±10%.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 64 macrocells - enables integration of multiple TTL/SSI/MSI functions into single device |
| Pin-to-pin Delay | 7.5 ns (–15 speed grade) - ensures timing closure in 125 MHz registered paths |
| Global Clock Inputs | 3 dedicated pins (GCLK1–GCLK3) - supports multi-domain synchronous design without external routing |
| I/O Count | 68 bi-directional I/Os in JC68 package - provides full connectivity for parallel bus interfaces like PCI |
| Supply Voltage | 5.0 V ±10% (industrial) - compatible with legacy 5 V system rails and PCI signaling |
| Power-down Current | <10 mA in PD mode - reduces standby power in battery-backed or low-power sleep states |
| JTAG Compliance | IEEE Std. 1149.1-1990 & 1149.1a-1993 - enables production boundary-scan testing and field firmware updates |
Pinout & Package
ATF1504AS-15JC68 is packaged in a 68-lead Plastic Leaded Chip Carrier (PLCC) with 22.2 mm × 22.2 mm body, gull-wing leads, and JEDEC MS-026AC footprint. Pin 1 is marked by corner notch; top view orientation follows standard PLCC convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–10, 12–26, 28–43, 45–68 | I/O (bidirectional) | Configurable as input, output, or bidirectional; supports programmable slew rate and open-collector option |
| 11, 27 | PD1 / PD2 | Active-high power-down control inputs - assert high to enter sub-10 mA standby; disables clock/data but retains register state |
| 44, 54, 63 | GCLK1 / GCLK2 / GCLK3 | Dedicated global clock inputs - drive all macrocells simultaneously; support ITD (input transition detection) |
| 47, 57 | GCLR / OE1 | Global clear (asynchronous reset) and output enable 1 - individually assignable per macrocell via PTMUX |
| 61 | VCCINT | Core logic supply - must be decoupled locally; separate from VCCIO for mixed-voltage I/O flexibility |
| 19, 30, 41, 52, 65 | VCCIO | I/O voltage supply - set to 5.0 V for TTL/PCI compatibility; powers all I/O buffers and slew-rate circuitry |
| 7, 18, 29, 40, 51, 62 | GND | Ground reference - six dedicated ground pins minimize switching noise and improve signal integrity |
| 6, 17, 28, 39, 50, 67 | TDI / TDO / TMS / TCK | JTAG test access port - enables boundary-scan testing and ISP without removing device from PCB |
Key Features
| Feature | Design Value |
|---|---|
| In-system programmability (ISP) | Full JTAG-based reprogramming in-circuit - eliminates socketing, enables field updates and rapid prototyping |
| Programmable pin-keeper circuits | Prevents floating inputs/I/Os without external pull-ups - reduces BOM cost and DC power consumption |
| Per-macrocell reduced-power bit | Disables unused logic resources - cuts dynamic power proportionally to active macrocell count |
| Three global clock domains | Enables independent clocking of logic sections - simplifies timing analysis and avoids clock domain crossing issues |
| Security fuse + 16-bit user signature | Protects configuration bitstream; allows traceability via project ID/revision stored in accessible non-secure memory |
| PCI-compliant output drivers | Meets PCI v2.2 DC specs (IOH = –4 mA, IOL = 12 mA @ VCCIO = 4.75 V) - supports direct connection to PCI bus |
Applications
| Industrial Control Backplane Interface | Legacy PCI Add-in Card Glue Logic |
|---|---|
|
Use Scenario: Interfacing custom ASICs or microcontrollers to ISA/PCI backplanes in factory automation systems. IC Role / Device Role / Timing Role: Acts as address decoder, bus arbitrator, and protocol translator between 8/16-bit local bus and 32-bit PCI. Use Value: Eliminates discrete logic chips; leverages 68 I/Os and 3 global clocks to meet PCI setup/hold timing with 7.5 ns tPD1. |
Use Scenario: Replacing obsolete PAL/GAL devices on aging PCI video or storage controller cards. IC Role / Device Role / Timing Role: Provides configurable I/O buffering, interrupt masking, and register-mapped peripheral control. Use Value: Enables drop-in replacement using same 68-pin PLCC footprint; JTAG ISP allows firmware patching without card removal. |
| Automated Test Equipment (ATE) Pattern Generator | Medical Instrument Digital Sequencer |
|
Use Scenario: Generating synchronized stimulus waveforms across multiple DUT channels in benchtop ATE systems. IC Role / Device Role / Timing Role: Implements deterministic finite-state machine with precise clock domain isolation via GCLK1–GCLK3. Use Value: Achieves 125 MHz registered operation and <1 ns output skew - critical for multi-channel timing alignment. |
Use Scenario: Managing sensor sampling, display refresh, and safety interlock sequencing in Class II medical devices. IC Role / Device Role / Timing Role: Serves as fail-safe sequencer with power-up reset, security fuse, and latch-up immunity (200 mA). Use Value: Meets IEC 60601-1 requirements via 20-year data retention, 2000V ESD protection, and industrial temp range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD-based control logic applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATF1504AS-10JC68 | 10 ns speed grade (vs. 7.5 ns); identical pinout, macrocell count, and feature set | Suitable where 100 MHz max clock suffices; lower power at same frequency due to relaxed timing margins | Select when timing budget allows margin relaxation and lower ICC1 (105 mA vs. 130 mA std mode) is prioritized |
| EPM7064STC100-10 | Altera MAX 7000S CPLD; 64 macrocells, 100-pin TQFP, 5.0 V only; no JTAG ISP (requires UV erasure or dedicated programmer) | Requires PCB redesign (100-pin vs. 68-pin); lacks in-field reprogrammability and pin-keeper circuits | Consider only if legacy toolchain lock-in exists; avoid for new designs requiring ISP or compact PLCC footprint |
Compared with ATF1504AS-10JC68 and EPM7064STC100-10, the ATF1504AS-15JC68 uniquely combines industrial-grade 7.5 ns performance, 68-pin PLCC compatibility, full JTAG ISP, and PCI-compliant outputs - making it the only option supporting field-upgradable, space-constrained, and standards-compliant legacy system upgrades.
Availability
ATF1504AS-15JC68 is available at Aetrix Electronics and suitable for industrial control backplanes, legacy PCI add-in cards, automated test equipment, medical instrument sequencers, and factory automation systems requiring stable component supply over extended lifecycles.
Supply support for ATF1504AS-15JC68 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 legacy Atmel PLD products including the ATF1504AS family.
The ATF1504AS series was designed for high-reliability, pin-locked logic replacement in industrial and communications infrastructure - emphasizing in-system programmability, PCI compliance, and long-term data retention.
FAQ
What is the maximum operating frequency of the ATF1504AS-15JC68?
The ATF1504AS-15JC68 supports registered operation up to 125 MHz under industrial conditions (–40°C to +85°C, VCC = 5.0 V ±10%). This is guaranteed by its –15 speed grade, which specifies tCNT ≤ 8 ns minimum global clock period. The device achieves this using three dedicated global clock inputs and optimized macrocell routing - all verified in the official Atmel 0950N–PLD–07/02 datasheet.
Does the ATF1504AS-15JC68 support in-system programming (ISP)?
Yes, the ATF1504AS-15JC68 fully supports IEEE 1149.1-compliant in-system programming via its dedicated TDI/TDO/TMS/TCK pins. ISP allows full configuration bitstream loading and verification without removing the device from the PCB. The ATF1504AS-15JC68 also includes JTAG boundary-scan testing capability and optional security fuse programming - all documented in the Atmel ATF1504AS(L) datasheet Rev. 0950N–PLD–07/02.
What package type does the ATF1504AS-15JC68 use?
The ATF1504AS-15JC68 uses a 68-lead Plastic Leaded Chip Carrier (PLCC) package, identified by the "JC68" suffix. It measures 22.2 mm × 22.2 mm with gull-wing leads and follows JEDEC MS-026AC mechanical specifications. This package is pin-compatible with other ATF1504AS variants in JC68 format and supports hand-soldering, wave soldering, and reflow processes per Atmel's assembly guidelines.
Can the ATF1504AS-15JC68 operate with 3.3 V I/O levels?
No - the ATF1504AS-15JC68 is a 5.0 V-only I/O device. Its VCCIO specification is 5.0 V ±10% for industrial operation, and it does not support 3.3 V I/O signaling. For 3.3 V compatibility, designers must select the ATF1504ASV variant (e.g., ATF1504ASV-15JC68), which explicitly lists 3.0 V–3.6 V VCCIO in its datasheet. The ATF1504AS-15JC68 remains strictly 5 V-tolerant and PCI-compliant.
What power management features does the ATF1504AS-15JC68 include?
The ATF1504AS-15JC68 includes three hardware power management features: (1) automatic µA standby in "L" versions (not applicable here - ATF1504AS is standard grade), (2) pin-controlled 1 mA standby via PD1/PD2, and (3) per-macrocell reduced-power bit. In the ATF1504AS-15JC68, PD1/PD2 assertion reduces ICC to <10 mA while latching internal states - confirmed in AC Characteristics Table on page 15 of Rev. 0950N–PLD–07/02.
ATF1504AS-15JC68 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:
- 4.75V ~ 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-15JC68 FAQ
1.How can I place an order for ATF1504AS-15JC68 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1504AS-15JC68 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-15JC68 reliable?
The price and inventory of ATF1504AS-15JC68 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1504AS-15JC68 is usually 5 days.
3.What payment methods are accepted for ATF1504AS-15JC68?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1504AS-15JC68 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1504AS-15JC68?
ATF1504AS-15JC68 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1504AS-15JC68 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-15JC68?
For technical support, including ATF1504AS-15JC68 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1504AS-15JC68 requirements.
6.How does Aetrix verify that ATF1504AS-15JC68 is sourced from the original manufacturer or authorized distributors?
All ATF1504AS-15JC68 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-15JC68 meets industry standards.
7.What is the process for return or replacement of ATF1504AS-15JC68?
All ATF1504AS-15JC68 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1504AS-15JC68, 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-15JC68 part is unused and in its original packaging.
Return procedure for ATF1504AS-15JC68:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1504AS-15JC68 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
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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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