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Microchip Technology ATF1504ASL-20AC100
- Part No.:
- ATF1504ASL-20AC100
- Manufacturer:
- Microchip Technology
- Package:
- 100-TQFP
- Datasheet:
-
ATF1504ASL-20AC100.pdf
- Description:
- IC CPLD 64MC 20NS 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,700
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Product details
Overview
ATF1504ASL-20AC100 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 125 MHz registered operation. It supports in-system programming via JTAG, features three global clock inputs, and operates at 3.3V or 5.0V I/O levels. This device integrates legacy TTL/SSI/MSI logic in industrial control and PCI-compliant interface applications.
For engineers reviewing the ATF1504ASL-20AC100 datasheet, ATF1504ASL-20AC100 pinout, ATF1504ASL-20AC100 application, or ATF1504ASL-20AC100 equivalent, key selection criteria include its 100-lead TQFP package, -20 speed grade (125 MHz max clock), L-version low-power standby (10 µA), JTAG boundary-scan compliance (IEEE 1149.1a), and PCI electrical compatibility.
Technical Context
The ATF1504ASL-20AC100 implements a flexible macrocell architecture with five product terms per macrocell-expandable to 40 via cascade logic-and supports D/T/latch flip-flop configurations with individual register control and output enable. Its global bus delivers up to 68 input/I/O signals plus buried macrocell feedback to each logic block's 40-signal switch matrix.
It integrates three dedicated global clock pins (GCLK1–GCLK3), input transition detection (ITD) circuits on clocks, inputs, and I/Os, and programmable pin-keeper circuits for floating-input stabilization. Power management includes automatic µA standby, pin-controlled 1 mA power-down mode, and per-macrocell reduced-power bit enabling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 64 macrocells with 5 base + up to 40 expandable product terms per macrocell |
| Speed Grade | -20: 7.5 ns max pin-to-pin delay; 125 MHz max registered operation |
| Operating Voltage | 3.3V or 5.0V I/O; VCCINT = 5V ±10% (industrial) |
| Power Consumption | 10 µA standby current (L-version); <10 mA power-down mode |
| Package | 100-lead TQFP (14 mm × 14 mm, 0.5 mm pitch) |
| Standards Compliance | IEEE Std. 1149.1a-1993 boundary-scan; PCI-compliant drive capability |
| Temperature Range | Industrial: -40°C to +85°C |
Pinout & Package
ATF1504ASL-20AC100 is housed in a 100-lead Thin Quad Flat Package (TQFP) with 0.5 mm lead pitch and 14 mm × 14 mm body size. Pin functions are defined per the official 100-lead TQFP top-view diagram in Rev. 0950N–PLD–07/02.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GCLK1 / INPUT | Global Clock Input 1 | Primary clock source for macrocell registers; supports fast input timing (tFSU = 3 ns) |
| GCLK2 / OE2 / INPUT | Global Clock Input 2 or Output Enable 2 | Configurable dual-function pin; enables shared OE control across multiple macrocells |
| GCLK3 / I/O | Global Clock Input 3 or Bidirectional I/O | Third clock domain or general-purpose I/O with buried feedback capability |
| GCLR / INPUT | Global Clear Input | Asynchronous reset for all macrocell flip-flops; OR-capable with product term |
| OE1 / INPUT | Output Enable 1 | Dedicated global OE signal; selectable per macrocell via MOE multiplexer |
| PD1 / I/O | Power-down Control 1 | Active-high pin that forces device into <10 mA power-down mode; disables logic but retains state |
| TDI / I/O | JTAG Test Data In | Serial input for boundary-scan and ISP programming; pull-up option configurable |
| TMS / I/O | JTAG Test Mode Select | Controls TAP controller state machine; pull-up option configurable |
| TCK / I/O | JTAG Test Clock | System clock for JTAG operations; synchronous to internal logic clocks |
| TDO / I/O | JTAG Test Data Out | Serial output for boundary-scan readback and ISP verification |
Key Features
| Feature | Design Value |
|---|---|
| In-System Programmability (ISP) | JTAG-based reprogramming without removal from PCB; supports field updates and manufacturing flexibility |
| Flexible Macrocell Configuration | D/T/latch flip-flops with per-macrocell clock enable, asynchronous preset/reset, and combinatorial/register output selection |
| Enhanced Routing Resources | 40-signal global bus + regional foldback bus; supports pin-locked design iterations and high logic utilization |
| Advanced Power Management | Automatic µA standby, pin-controlled power-down, per-macrocell reduced-power bit, and programmable pin-keeper circuits |
| PCI Electrical Compatibility | High-current drive capability without added skew or delay; meets PCI bus loading and timing requirements |
| Security & Traceability | Programmable security fuse prevents unauthorized copying; 16-bit user-accessible signature for revision/date tracking |
Applications
| Industrial PLC I/O Expansion | Legacy System Interface Bridge |
|---|---|
Use Scenario: Replacing discrete TTL logic in programmable logic controllers to consolidate input conditioning, debounce, and output sequencing logic. IC Role / Device Role / Timing Role: CPLD implementing synchronous state machines with 125 MHz clock domains and deterministic 7.5 ns propagation. Use Value: Reduces board space by >70% vs. discrete logic; eliminates external pull-ups via pin-keeper; supports hot-swap-safe I/O during ISP updates. |
Use Scenario: Bridging ISA or VME bus peripherals to modern microcontrollers using custom protocol translation and address decoding. IC Role / Device Role / Timing Role: Configurable glue logic with three independent global clocks for multi-domain synchronization and PCI-compatible drive strength. Use Value: Enables drop-in replacement of obsolete PAL/GAL devices; maintains timing closure across mixed-voltage (3.3V/5V) interfaces. |
| PCI Add-in Card Control Logic | Test Equipment Pattern Generator |
Use Scenario: Managing configuration, interrupt arbitration, and data path control in PCI-based data acquisition cards. IC Role / Device Role / Timing Role: PCI-compliant CPLD providing high-drive, low-skew outputs with JTAG boundary-scan for production testability. Use Value: Meets PCI timing budgets without external buffers; simplifies board-level test with IEEE 1149.1a scan chain integration. |
Use Scenario: Generating precise stimulus waveforms and response capture logic in automated test equipment (ATE) systems. IC Role / Device Role / Timing Role: High-speed registered logic engine with 125 MHz clocking, fast input sampling (tFIN = 1 ns), and deterministic setup/hold margins. Use Value: Achieves sub-10 ns timing resolution; supports real-time pattern modification via JTAG ISP during test execution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATF1504AS-20AC100 | No automatic µA standby; higher ICC1 (130 mA industrial) vs. ATF1504ASL-20AC100's 10 µA | Suitable where lowest quiescent power is not required; same speed/package | Select ATF1504ASL-20AC100 for battery-backed or thermally constrained industrial systems. |
| XC95144XL-10TQ100C | Xilinx CoolRunner-II; 144 macrocells; 10 ns speed grade; 3.3V-only; no 5V I/O tolerance | Better density and lower static power, but lacks 5V I/O and PCI drive; requires level-shifting in mixed-voltage designs | Choose XC95144XL-10TQ100C only when migrating to 3.3V-only systems with higher logic capacity needs. |
Compared with ATF1504AS-20AC100, the ATF1504ASL-20AC100 delivers 13× lower standby current while retaining identical timing, pinout, and feature set; versus XC95144XL-10TQ100C, it offers native 5V-tolerant I/O and PCI compliance at lower logic density but broader voltage interoperability.
Availability
ATF1504ASL-20AC100 is available at Aetrix Electronics and suitable for industrial PLCs, PCI add-in cards, and legacy system interface bridges requiring stable component supply, long-term lifecycle support, and verified JTAG ISP functionality.
Supply support for ATF1504ASL-20AC100 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 continues to support its legacy PLD portfolio, including the ATF1504AS family, with full documentation, programming tools, and long-term supply assurance.
The ATF1504AS(L) series was designed for high-reliability industrial control and interface bridging applications requiring in-system programmability, mixed-voltage I/O, and deterministic timing - targeting replacements for obsolete PAL/GAL devices and discrete logic consolidation.
FAQ
What is the maximum operating frequency of the ATF1504ASL-20AC100?
The ATF1504ASL-20AC100 supports a maximum internal global clock frequency of 125 MHz, as confirmed by its -20 speed grade (tCNT = 8 ns minimum clock period). This applies to registered operation using GCLK1–GCLK3; combinatorial paths achieve 7.5 ns pin-to-pin delay. The device maintains this performance across its full industrial temperature range (-40°C to +85°C) under 5V VCCINT and 3.3V or 5.0V I/O conditions.
Does the ATF1504ASL-20AC100 support both 3.3V and 5.0V I/O signaling?
Yes, the ATF1504ASL-20AC100 supports configurable 3.3V or 5.0V I/O levels per the datasheet's DC characteristics table. VCCIO can be set to either 3.0–3.6V or 4.75–5.25V (commercial) / 4.5–5.5V (industrial), enabling direct interfacing with mixed-voltage systems without external level shifters. This dual-voltage capability is hardware-configured via VCCIO pin voltage and is fully supported in all 100-lead TQFP applications.
How does the power-down mode function on the ATF1504ASL-20AC100?
The ATF1504ASL-20AC100 enters power-down mode when PD1 (or PD2) is driven high, reducing supply current to <10 mA. During this state, all internal logic states and registered/combinatorial outputs are latched and held, and I/O pins retain their last-driven or high-Z state. Inputs (except PD pins) are blocked, but pin-keeper circuits remain active to prevent floating. Recovery occurs within 1 µs after PD returns low, with full functionality restored.
Is JTAG boundary-scan testing supported on the ATF1504ASL-20AC100?
Yes, the ATF1504ASL-20AC100 fully supports IEEE Std. 1149.1a-1993 boundary-scan testing via its dedicated TDI, TMS, TCK, and TDO pins. Each I/O and input pin includes a boundary-scan cell (BSC), and the device implements SAMPLE/PRELOAD, EXTEST, BYPASS, IDCODE, and HIGHZ JTAG modes. BSDL files are provided by Microchip for integration with standard ATE and debug tools.
Can the ATF1504ASL-20AC100 replace older PAL or GAL devices in existing designs?
Yes, the ATF1504ASL-20AC100 is widely used as a pin-compatible and functional replacement for obsolete 22V10, 22V10H, and GAL16V8 devices in industrial and telecom applications. Its 64 macrocells, flexible output enables, and 5V-tolerant I/O allow direct substitution in legacy designs - especially where JTAG ISP, enhanced routing, and low-power standby are valuable upgrades. Migration requires recompilation using Microchip's design tools but no PCB changes.
ATF1504ASL-20AC100 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF15xx
- Package/Case:
- 100-TQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- In System Programmable (min 10K program/erase cycles)
- Delay Time tpd(1) Max:
- 20 ns
- Voltage Supply - Internal:
- 4.75V ~ 5.25V
- Number of Logic Elements/Blocks:
- -
- Number of Macrocells:
- 64
- Number of Gates:
- -
- Number of I/O:
- 64
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x14)
ATF1504ASL-20AC100 FAQ
1.How can I place an order for ATF1504ASL-20AC100 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1504ASL-20AC100 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-20AC100 reliable?
The price and inventory of ATF1504ASL-20AC100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1504ASL-20AC100 is usually 5 days.
3.What payment methods are accepted for ATF1504ASL-20AC100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1504ASL-20AC100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1504ASL-20AC100?
ATF1504ASL-20AC100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1504ASL-20AC100 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-20AC100?
For technical support, including ATF1504ASL-20AC100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1504ASL-20AC100 requirements.
6.How does Aetrix verify that ATF1504ASL-20AC100 is sourced from the original manufacturer or authorized distributors?
All ATF1504ASL-20AC100 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-20AC100 meets industry standards.
7.What is the process for return or replacement of ATF1504ASL-20AC100?
All ATF1504ASL-20AC100 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1504ASL-20AC100, 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-20AC100 part is unused and in its original packaging.
Return procedure for ATF1504ASL-20AC100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1504ASL-20AC100 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
-
5M160ZE64C5N
Intel
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