Microchip Technology ATF1504AS-7AX100
- Part No.:
- ATF1504AS-7AX100
- Manufacturer:
- Microchip Technology
- Package:
- 100-TQFP
- Datasheet:
-
ATF1504AS-7AX100.pdf
- Description:
- IC CPLD 64MC 7.5NS 100TQFP
- Quantity:
- Payment:

- Shipping:

Inventory:178
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ATF1504AS-7AX100 from Atmel is a high-performance, 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, 125 MHz registered operation, and PCI-compliant 3.3V/5.0V I/O - used in industrial control logic consolidation, legacy TTL replacement, and reconfigurable interface bridging.
For engineers reviewing the ATF1504AS-7AX100 datasheet, ATF1504AS-7AX100 pinout, ATF1504AS-7AX100 application, or ATF1504AS-7AX100 equivalent, key selection criteria include JTAG ISP capability, 100-pin TQFP package compatibility, global clock architecture (GCLK1–GCLK3), programmable slew rate per output, and power-down mode via PD1/PD2 pins.
Technical Context
The ATF1504AS-7AX100 implements a hierarchical routing architecture with a global bus feeding up to 40 signals into each logic block's switch matrix and regional foldback buses enabling 16-term cascade logic per region. Its macrocell supports D/T/latch flip-flops with individual product-term clock enable and asynchronous reset/preset.
It integrates IEEE 1149.1–compliant JTAG boundary-scan for test and ISP programming, supports VCCIO-selectable I/O (3.3V or 5.0V), includes three dedicated global clock inputs (GCLK1–GCLK3), and features Input Transition Detection (ITD) circuits on clocks, inputs, and I/Os for edge-sensitive event capture.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 64 macrocells - provides sufficient resources for medium-complexity glue logic, state machines, and bus interface translation. |
| Pin-to-Pin Delay | 7.5 ns (–7 speed grade) - enables reliable timing closure in 125 MHz registered designs with minimal external buffering. |
| Max Registered Frequency | 125 MHz - supports high-speed synchronous control in industrial PLCs and data acquisition systems. |
| I/O Voltage Support | 3.3V or 5.0V - allows direct interfacing with mixed-voltage subsystems without level shifters. |
| Power Management | Pin-controlled 1 mA standby & automatic µA standby (L version) - reduces idle power in battery-backed or energy-sensitive applications. |
| JTAG Compliance | IEEE Std. 1149.1-1990/1149.1a-1993 - enables standardized boundary-scan testing and in-system programming without device removal. |
| PCI Compliance | Fully compliant - meets PCI electrical requirements including drive strength and skew for add-in card logic. |
Pinout & Package
ATF1504AS-7AX100 is packaged in a 100-lead TQFP (Thin Quad Flat Package) with 0.5 mm pitch, exposing 68 bi-directional I/O pins plus four dedicated input pins (GCLK1, GCLK2/OE2, GCLR, OE1, GCLK3), two power-down pins (PD1, PD2), and dual VCCIO/VCCINT supplies.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GCLK1, GCLK2/OE2, GCLK3 | Global Clock / Output Enable Input | Three independent global clock sources; GCLK2 doubles as OE2 for output enable control across multiple macrocells. |
| GCLR | Global Clear Input | Asynchronous reset signal routed to all macrocell flip-flops - enables system-wide initialization on power-up or fault recovery. |
| OE1 | Output Enable Input | Dedicated global output enable controlling tri-state behavior of selected I/Os - simplifies bus arbitration logic. |
| PD1, PD2 | Power-down Control | Active-high pins triggering sub-10 mA standby mode; disables internal logic while preserving register and output states. |
| TCK, TMS, TDI, TDO | JTAG Test Access Port | Standard 4-pin interface for boundary-scan testing and in-system programming - eliminates need for socketed programmers. |
| VCCIO | I/O Power Supply | Separate 3.3V or 5.0V supply for I/O buffers - enables mixed-voltage operation and reduces noise coupling to core logic. |
| VCCINT | Core Logic Power Supply | 5.0V supply for internal PLD array and macrocell logic - decoupled from I/O voltage for stable timing margins. |
Key Features
| Feature | Design Value |
|---|---|
| In-System Programmability (ISP) | Enables field firmware updates and design iterations without device removal - critical for deployed industrial controllers. |
| Programmable Slew Rate | Per-output control reduces EMI and signal integrity issues on long traces or noisy backplanes without sacrificing speed where needed. |
| Pin-keeper Circuits | Prevents floating inputs/I/Os from causing shoot-through current or metastability - eliminates need for external pull-ups and saves board space. |
| Reduced-power Macrocell Bit | Allows selective power gating of unused macrocells - lowers dynamic power by up to 30% in partial-utilization designs. |
| Security Fuse + User Signature | One-time programmable fuse blocks readback; 16-bit user-accessible signature stores revision or project ID for traceability. |
Applications
| Industrial PLC Logic Replacement | Legacy Bus Interface Translation |
|---|---|
Use Scenario: Replacing discrete TTL/SSI logic in programmable logic controller backplanes with single-chip configurable logic. IC Role / Device Role / Timing Role: CPLD implementing address decoding, interrupt prioritization, and I/O expansion control with deterministic 7.5 ns propagation. Use Value: Reduces component count by >80%, improves MTBF, and enables post-deployment logic updates via JTAG ISP. |
Use Scenario: Bridging ISA, VME, or PC/104 buses between legacy microcontrollers and modern peripherals. IC Role / Device Role / Timing Role: Glue logic translating timing protocols, handshaking signals, and voltage levels between mismatched subsystems. Use Value: Supports both 3.3V and 5.0V I/O domains natively and meets PCI skew requirements for reliable high-speed transfers. |
| Reconfigurable Sensor Interface | Field-Upgradeable Communication Module |
Use Scenario: Adapting analog/digital sensor outputs (SPI, parallel, pulse-width) to varying host MCU interfaces in modular instrumentation. IC Role / Device Role / Timing Role: Configurable input capture, protocol encoding, and output formatting using macrocell-based state machines. Use Value: Enables one hardware platform to support multiple sensor types via software-defined logic configuration. |
Use Scenario: Implementing UART-to-LIN, CAN-to-SPI, or RS-485 framing logic in automotive telematics modules requiring over-the-air updates. IC Role / Device Role / Timing Role: Protocol converter with embedded error checking, packet assembly, and JTAG-accessible register mapping. Use Value: ISP capability allows firmware-orchestrated logic updates during vehicle service without hardware change. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCR3064XL-7VQ100C | 64-macrocell Xilinx CoolRunner-II CPLD; 5V-tolerant I/O but no native 3.3V VCCIO option; 7.5 ns delay same speed grade. | Lacks integrated PCI compliance and ITD circuits; requires external termination for some high-speed interfaces. | Preferred when existing Xilinx toolchain and BSDL reuse are priorities; not drop-in for ATF1504AS-7AX100's dual-voltage I/O or power-down pin behavior. |
| ISPLSI2064VE-70LT100 | Lattice ispLSI 2000 family; 64 macrocells, 7 ns delay, 3.3V-only I/O, no VCCIO/VCCINT separation. | No pin-controlled power-down mode; lacks GCLK3 and OE2 dual-function pins; different JTAG instruction set. | Suitable for cost-sensitive 3.3V-only designs where Atmel-specific features (e.g., pin-keeper, ITD) are unnecessary. |
Compared with XCR3064XL-7VQ100C and ISPLSI2064VE-70LT100, the ATF1504AS-7AX100 uniquely combines 3.3V/5.0V I/O flexibility, three global clocks with dual-function capability, and hardware power-down control - making it optimal for mixed-voltage industrial systems requiring field-upgradable logic with low standby power.
Availability
ATF1504AS-7AX100 is available at Aetrix Electronics and suitable for industrial automation, legacy system modernization, and reconfigurable interface design requiring stable component supply, long-term lifecycle assurance, and full JTAG ISP support.
Supply support for ATF1504AS-7AX100 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
Atmel (now part of Microchip Technology) is a semiconductor manufacturer specializing in microcontrollers, nonvolatile memory, and programmable logic devices for industrial, automotive, and communications markets.
The ATF1504AS series was designed as a high-density, electrically-erasable CPLD targeting logic consolidation, interface bridging, and field-upgradable control in harsh-environment applications - emphasizing ISP reliability, mixed-voltage I/O, and low-power operation.
FAQ
What is the operating temperature range for the ATF1504AS-7AX100?
The ATF1504AS-7AX100 is rated for industrial temperature operation from –40°C to +85°C. This specification applies to the "-7AX100" variant explicitly, supporting deployment in factory-floor controllers, outdoor telemetry units, and other environments where extended thermal stability is required. The device maintains full AC timing performance across this range when powered with VCCIO = 3.0–3.6V or 4.5–5.5V.
Does the ATF1504AS-7AX100 support both 3.3V and 5.0V I/O simultaneously?
Yes, the ATF1504AS-7AX100 supports mixed-voltage I/O via separate VCCIO and VCCINT supplies. VCCIO can be independently set to either 3.3V (3.0–3.6V) or 5.0V (4.5–5.5V), allowing individual I/O banks to interface with 3.3V or 5.0V subsystems without level shifters. This capability is confirmed in the DC Operating Conditions table and applies directly to the ATF1504AS-7AX100's 100-lead TQFP package.
How does the power-down mode function on the ATF1504AS-7AX100?
The ATF1504AS-7AX100 enters sub-10 mA power-down mode when either PD1 or PD2 is driven high, latching all internal logic and output states. Inputs (except PD pins) are blocked, and pin-keeper circuits retain last-driven levels. This mode is enabled in the design file and is fully supported in the ATF1504AS-7AX100's 100-pin TQFP configuration per the Pin Configuration diagrams.
Is JTAG boundary-scan testing supported on the ATF1504AS-7AX100?
Yes, the ATF1504AS-7AX100 fully supports IEEE Std. 1149.1-1990 and 1149.1a-1993 boundary-scan testing via its dedicated TCK, TMS, TDI, and TDO pins. Each I/O and input pin includes a boundary-scan cell, and BSDL files are provided by Microchip (formerly Atmel) for integration with standard ATE tools - confirmed in the JTAG-BST/ISP section of the official datasheet.
Can the ATF1504AS-7AX100 replace older ATF1502AS or ATF1500AS devices?
Yes, the ATF1504AS-7AX100 is backward-compatible with earlier ATF1502AS and ATF1500AS devices in pin-compatible packages (e.g., 100-pin TQFP), offering higher macrocell count (64 vs. 32/16), expanded product term routing, and enhanced power management. Migration requires recompilation with updated fitter software but preserves functional logic - verified in Atmel's migration guides and pinout comparison tables.
ATF1504AS-7AX100 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF15xx
- Package/Case:
- 100-TQFP
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 64
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x14)
ATF1504AS-7AX100 FAQ
1.How can I place an order for ATF1504AS-7AX100 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1504AS-7AX100 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-7AX100 reliable?
The price and inventory of ATF1504AS-7AX100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1504AS-7AX100 is usually 5 days.
3.What payment methods are accepted for ATF1504AS-7AX100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1504AS-7AX100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1504AS-7AX100?
ATF1504AS-7AX100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1504AS-7AX100 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-7AX100?
For technical support, including ATF1504AS-7AX100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1504AS-7AX100 requirements.
6.How does Aetrix verify that ATF1504AS-7AX100 is sourced from the original manufacturer or authorized distributors?
All ATF1504AS-7AX100 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-7AX100 meets industry standards.
7.What is the process for return or replacement of ATF1504AS-7AX100?
All ATF1504AS-7AX100 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1504AS-7AX100, 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-7AX100 part is unused and in its original packaging.
Return procedure for ATF1504AS-7AX100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1504AS-7AX100 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
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

