Microchip Technology ATF1504ASV-15AI100

Overview

ATF1504ASV-15AI100 from Microchip Technology is a 3.3V, 64-macrocell complex programmable logic device (CPLD) in 100-lead TQFP package, delivering 15 ns pin-to-pin delay, 77 MHz registered operation, and IEEE 1149.1 JTAG boundary-scan compliance. It integrates TTL/SSI/MSI logic replacement, PCI-compliant interface control, and in-system programmability for industrial embedded timing and glue logic applications.

For engineers reviewing the ATF1504ASV-15AI100 datasheet, ATF1504ASV-15AI100 pinout, ATF1504ASV-15AI100 application, or ATF1504ASV-15AI100 equivalent, this page delivers verified macrocell architecture, power-down mode behavior, JTAG ISP timing constraints, and exact 100-TQFP terminal mapping - all confirmed against DS20006185A.

Technical Context

The ATF1504ASV-15AI100 implements a 64-macrocell array with five product terms per macrocell expandable to 40 via cascade logic, three global clock inputs (GCLK1–GCLK3), and dedicated global clear (GCLR) and output enable (OE1/OE2) pins. Its switch matrix selects up to 40 signals from a shared global bus containing all I/O and buried feedback paths.

Each macrocell supports D/T/Latch flip-flops, transparent-latch mode, combinatorial outputs with registered feedback, and fast registered input from product terms. ITD (Input Transition Detection) circuits on global clocks, inputs, and I/Os enable edge-triggered power management and glitch filtering without external circuitry.

Key Specifications

Pinout & Package

ATF1504ASV-15AI100 is housed in a 100-lead thin quad flat pack (TQFP) with 0.5 mm pitch, RoHS-compliant, industrial temperature range (−40°C to +85°C). Package dimensions: 14 mm × 14 mm × 1.4 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar CPLD applications.

Compared with ATF1504ASV-15AI100, the ATF1504ASVL-15AI100 offers superior quiescent power at the cost of slightly higher active current, while the XC95144XL-10T100C provides greater logic capacity and speed but demands full redesign for toolchain, timing closure, and power integrity validation.

Availability

ATF1504ASV-15AI100 is available at Aetrix Electronics and suitable for industrial control logic, PCI bus interface, and power management sequencing requiring stable component supply across extended lifecycle programs.

Supply support for ATF1504ASV-15AI100 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 Inc. is a leading provider of microcontrollers, analog devices, and programmable logic solutions, with emphasis on reliability, longevity, and industrial-grade qualification.

The ATF1504ASV family was designed for high-reliability, in-system programmable glue logic in industrial, telecom, and automotive-adjacent applications - prioritizing EEPROM endurance, JTAG robustness, and deterministic timing over raw density.

FAQ

What is the maximum operating frequency of the ATF1504ASV-15AI100?

The ATF1504ASV-15AI100 supports registered operation up to 77 MHz under industrial conditions (−40°C to +85°C) with 3.0V–3.6V supply. This is derived from its −15 speed grade specification: fCNT = 76.9 MHz minimum clock period (13 ns), confirmed in Table 1-4 of DS20006185A. The device achieves this using three global clock inputs and macrocell-level clock enable logic.

Does the ATF1504ASV-15AI100 support in-system programming (ISP)?

Yes, the ATF1504ASV-15AI100 fully supports IEEE 1149.1 JTAG-based in-system programming via its dedicated TDI/TMS/TCK/TDO pins. ISP allows field updates without device removal, and the device ships erased and ready for programming. JTAG can be disabled in design software to reclaim those four pins as general-purpose I/O - a capability explicitly documented for ATF1504ASV-15AI100 in DS20006185A page 7.

What are the power-down capabilities of the ATF1504ASV-15AI100?

The ATF1504ASV-15AI100 features pin-controlled power-down mode activated by asserting PD1 or PD2 high, reducing supply current to <5 mA (ICC2). During power-down, all internal logic states and registered outputs are latched and held, and outputs retain their last valid value or high-Z state. Input signals (except PD pins) are blocked, and pin-keeper circuits prevent floating - details confirmed in DS20006185A pages 6 and 11.

How many I/O pins does the ATF1504ASV-15AI100 provide in its 100-TQFP package?

The ATF1504ASV-15AI100 in 100-lead TQFP provides 64 user I/O pins plus four dedicated global control pins (GCLK1, GCLK2/OE2, GCLK3, GCLR, OE1), totaling 68 signal pins. This is explicitly stated in Table 1-6 (page 14) and reinforced by the pinout diagram on page 3 of DS20006185A. Unused pins are marked NC and must remain unconnected.

Is the ATF1504ASV-15AI100 PCI-compliant?

Yes, the ATF1504ASV-15AI100 is explicitly certified PCI-compliant per PCI Local Bus Specification Revision 2.2. Its AC characteristics - including tSU = 11 ns, tH = 0 ns, and output drive strength matching 3.3V PCI signaling levels - meet all required timing and electrical parameters. This compliance is declared in the "Features" section (page 1) and validated in Table 1-4 of DS20006185A.