My Inquiry
My Account
Microchip Technology ATF1508ASVL-20AI100
- Part No.:
- ATF1508ASVL-20AI100
- Manufacturer:
- Microchip Technology
- Package:
- 100-TQFP
- Datasheet:
-
ATF1508ASVL-20AI100.pdf
- Description:
- IC CPLD 128MC 20NS 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,636
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ATF1508ASVL-20AI100 from Microchip Technology (formerly Atmel) is a high-density, electrically-erasable Complex Programmable Logic Device (CPLD) with 128 macrocells, 5 product terms per macrocell (expandable to 40), 15 ns maximum pin-to-pin delay, and operation up to 77 MHz. It supports in-system programming via IEEE 1149.1 JTAG and delivers PCI-compliant logic integration for industrial control and legacy interface bridging.
For engineers reviewing the ATF1508ASVL-20AI100 datasheet, ATF1508ASVL-20AI100 pinout, ATF1508ASVL-20AI100 application, or ATF1508ASVL-20AI100 equivalent, key selection criteria include its 100-lead TQFP package, 3.0–3.6 V supply range, automatic 5 µA standby power mode, JTAG boundary-scan testability, and programmable slew rate per output.
Technical Context
The ATF1508ASVL-20AI100 implements a hierarchical CPLD architecture with eight logic chains supporting up to 40-product-term sum-of-products generation. Its global bus feeds all 128 macrocells and I/O pins, while each macrocell provides buried combinatorial or registered feedback independent of output configuration.
It features three dedicated global clock inputs (GCLK1–GCLK3), input transition detection (ITD) on clocks and I/Os, fast registered input paths from product terms, and flexible flip-flop modes including D/T/latch with asynchronous preset/clear. The device uses electrically-erasable EEPROM technology with 10,000 program/erase cycles and 20-year data retention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 128 macrocells - enables replacement of multiple TTL/MSI devices or legacy PLDs in single-package logic consolidation. |
| Max Pin-to-pin Delay | 15 ns at -20 speed grade - ensures timing closure for 66 MHz system clock domains with margin. |
| Operating Voltage | 3.0 V to 3.6 V - compatible with 3.3 V logic families and industrial power rails without level translation. |
| Standby Current | 5 µA (L-version) - enables ultra-low-power hold states in battery-backed or energy-sensitive systems. |
| JTAG Compliance | IEEE Std. 1149.1-1990/1149.1a-1993 - supports production boundary-scan testing and field firmware updates without device removal. |
| Package | 100-lead TQFP - surface-mount footprint with 0.5 mm pitch, suitable for automated assembly and thermal management in dense PCB layouts. |
| Program Cycles | 10,000 erase/program cycles - supports iterative design validation and field reconfiguration over extended product lifecycles. |
Pinout & Package
ATF1508ASVL-20AI100 is packaged in a 100-lead Thin Quad Flat Package (TQFP) with 0.5 mm lead pitch and exposed pad for thermal dissipation. Pin functions are defined per the manufacturer's top-view diagram and include dedicated global control inputs, JTAG interface pins, power/ground distribution, and configurable I/Os with programmable slew rate and open-collector capability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INPUT/GCLR (Pin 89) | Global Asynchronous Clear | Resets all macrocell registers simultaneously; may be OR'd with product-term assertion for conditional reset. |
| INPUT/OE1 & INPUT/OE2 (Pins 88, 90) | Global Output Enable | Controls tri-state behavior across subsets of I/Os; polarity selectable per macrocell via fitter software. |
| I/O/GCLK3 (Pin 85) | Third Global Clock Input | Provides third independent clock domain; supports multi-clock state machines and synchronous FIFO interfaces. |
| I/O/TDI, TMS, TCK, TDO (Pins 4, 15, 62, 73) | JTAG Test Access Port | Enables boundary-scan testing, ISP programming, and BSDL-based diagnostics without external hardware adapters. |
| I/O/PD1 & I/O/PD2 (Pins 1, 41) | Power-down Control Inputs | Asserting either pin high reduces ICC to <5 mA; internal logic states and outputs remain latched during low-power hold. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Slew Rate | Per-output switching speed control reduces EMI and signal integrity issues on critical buses without sacrificing timing elsewhere. |
| Pin-keeper Circuits | Prevents floating inputs/I/Os by holding last-driven logic level - eliminates need for external pull-ups and associated DC leakage. |
| Three Global Clock Pins | Enables concurrent operation of independent logic domains (e.g., control, data path, status monitoring) with deterministic skew management. |
| Input Transition Detection (ITD) | Detects edges on global clocks, inputs, and I/Os - supports glitch-free interrupt generation and asynchronous event capture. |
| VCC Power-up Reset | Automatically initializes all registers at power-on; large-hysteresis option ensures robust reset in 3.0 V–3.3 V brownout conditions. |
Applications
| Industrial PLC I/O Expansion | Legacy Bus Interface Bridging |
|---|---|
Use Scenario: Adding isolated digital I/O channels to programmable logic controllers using discrete optocouplers and relay drivers. IC Role / Device Role / Timing Role: CPLD implements glue logic, address decoding, and handshake protocol conversion between microcontroller and peripheral ICs. Use Value: Replaces 12+ discrete TTL chips with single ATF1508ASVL-20AI100, reducing BOM count, board area, and thermal load while maintaining 15 ns timing margins. | Use Scenario: Interfacing modern 3.3 V microcontrollers to legacy ISA, PC/104, or parallel printer ports operating at 5 V TTL levels. IC Role / Device Role / Timing Role: Performs voltage-level translation, bus arbitration, and protocol timing adaptation with programmable setup/hold control. Use Value: Enables drop-in compatibility without redesigning PCB layout; JTAG ISP allows field updates to accommodate new peripheral revisions. |
| PCI-Compliant Peripheral Controller | Field-Upgradeable Test Equipment Logic |
Use Scenario: Implementing custom PCI target logic for instrumentation add-in cards requiring burst-mode data transfers and memory-mapped register access. IC Role / Device Role / Timing Role: Manages PCI bus signals (FRAME#, IRDY#, TRDY#), implements address/data multiplexing, and handles parity generation/checking. Use Value: Meets PCI v2.2 electrical compliance with 15 ns tPD; programmable open-collector outputs drive shared bus lines directly. | Use Scenario: Configurable logic core in automated test equipment where signal routing, pattern generation, and stimulus response must adapt to different DUT types. IC Role / Device Role / Timing Role: Provides reconfigurable state machines, counters, and sequencers that execute user-defined test algorithms stored in flash. Use Value: In-system programmability via JTAG enables remote firmware updates without hardware swaps - critical for minimizing test floor downtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCR3128XL-10VQ100C | 128 macrocells, 3.3 V only, 10 ns tPD, 100-pin VQFP; no built-in power-down mode or ITD circuits. | Lacks programmable slew rate and pin-keeper; requires external pull-ups; not qualified for industrial temperature range. | Select when faster timing (10 ns) is required and industrial temp operation is unnecessary. |
| EPM3128ATC100-10 | 128 macrocells, 3.3 V, 10 ns tPD, 100-pin TQFP; Flash-based, non-volatile, but no JTAG ISP support - requires external programmer. | No in-system programmability; no boundary-scan test capability; higher standby current (100 µA vs. 5 µA). | Select when long-term data retention without reprogramming is prioritized over field update flexibility. |
Compared with XCR3128XL-10VQ100C and EPM3128ATC100-10, the ATF1508ASVL-20AI100 uniquely combines industrial-grade temperature support (-40°C to +85°C), sub-µA standby power, JTAG ISP, and input transition detection - making it optimal for embedded control systems requiring field maintenance and energy efficiency.
Availability
ATF1508ASVL-20AI100 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, legacy bus interface bridging, and PCI-compliant peripheral controller designs requiring stable component supply across extended product lifecycles.
Supply support for ATF1508ASVL-20AI100 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 ATF1508ASV(L) family of electrically-erasable CPLDs.
The ATF1508ASV(L) product line was designed for high-reliability, field-upgradeable logic consolidation in industrial, automotive, and communications infrastructure - emphasizing in-system programmability, low-power operation, and long-term data retention.
FAQ
What is the operating voltage range for the ATF1508ASVL-20AI100?
The ATF1508ASVL-20AI100 operates from 3.0 V to 3.6 V. This 3.3 V nominal range ensures compatibility with standard LVTTL and LVCMOS logic families while supporting industrial power supply tolerances. The device maintains full functionality-including JTAG ISP, boundary-scan, and power-down modes-across this entire voltage window, as verified in the DC characteristics table of the official datasheet (Rev. 1408H).
Does the ATF1508ASVL-20AI100 support in-system programming?
Yes, the ATF1508ASVL-20AI100 supports IEEE 1149.1-compliant in-system programming (ISP) via its four-pin JTAG interface (TCK, TMS, TDI, TDO). Programming can be performed without removing the device from the PCB, enabling rapid prototyping, manufacturing programming, and field firmware updates. The JTAG port remains functional even after security fuse programming, and BSDL models are provided for test automation.
What is the purpose of the PD1 and PD2 pins on the ATF1508ASVL-20AI100?
The PD1 and PD2 pins on the ATF1508ASVL-20AI100 enable optional pin-controlled power-down mode. When either pin is driven high, the device enters a low-current state (<5 mA) while latching all internal logic states and registered outputs. Inputs (except PD pins) are blocked, and pin-keeper circuits prevent floating. This feature is enabled in the design source file and disables use of those pins' logic array inputs-but buried foldback resources remain available.
How many macrocells and product terms does the ATF1508ASVL-20AI100 provide?
The ATF1508ASVL-20AI100 contains 128 logic macrocells. Each macrocell has five dedicated product terms, expandable up to 40 via cascade logic from neighboring macrocells. This architecture supports high-fan-in sum-of-products expressions essential for complex state machines and arithmetic functions, with confirmed timing performance up to 77 MHz registered operation and 15 ns pin-to-pin delay at the -20 speed grade.
Is the ATF1508ASVL-20AI100 RoHS compliant and green-packaged?
Yes, the ATF1508ASVL-20AI100 is offered in green (Pb/Halide-free/RoHS-compliant) package options, including the 100-lead TQFP variant indicated by the "I100" suffix. It meets JEDEC JS709B and IPC-1752A requirements for hazardous substance restrictions. The device also features 2000 V HBM ESD protection and 200 mA latch-up immunity, ensuring robustness in industrial handling and operation.
ATF1508ASVL-20AI100 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:
- 3V ~ 3.6V
- Number of Logic Elements/Blocks:
- -
- Number of Macrocells:
- 128
- Number of Gates:
- -
- Number of I/O:
- 80
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x14)
ATF1508ASVL-20AI100 FAQ
1.How can I place an order for ATF1508ASVL-20AI100 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1508ASVL-20AI100 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 ATF1508ASVL-20AI100 reliable?
The price and inventory of ATF1508ASVL-20AI100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1508ASVL-20AI100 is usually 5 days.
3.What payment methods are accepted for ATF1508ASVL-20AI100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1508ASVL-20AI100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1508ASVL-20AI100?
ATF1508ASVL-20AI100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1508ASVL-20AI100 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 ATF1508ASVL-20AI100?
For technical support, including ATF1508ASVL-20AI100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1508ASVL-20AI100 requirements.
6.How does Aetrix verify that ATF1508ASVL-20AI100 is sourced from the original manufacturer or authorized distributors?
All ATF1508ASVL-20AI100 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 ATF1508ASVL-20AI100 meets industry standards.
7.What is the process for return or replacement of ATF1508ASVL-20AI100?
All ATF1508ASVL-20AI100 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1508ASVL-20AI100, 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 ATF1508ASVL-20AI100 part is unused and in its original packaging.
Return procedure for ATF1508ASVL-20AI100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1508ASVL-20AI100 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…
