My Inquiry
My Account
Microchip Technology ATF1508AS-10AU100
- Part No.:
- ATF1508AS-10AU100
- Manufacturer:
- Microchip Technology
- Package:
- 100-TQFP
- Datasheet:
-
ATF1508AS-10AU100.pdf
- Description:
- IC CPLD 128MC 10NS 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:548
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ATF1508AS-10AU100 from Microchip Technology (formerly Atmel) is a high-performance, electrically-erasable Complex Programmable Logic Device (CPLD) with 128 macrocells, 5 product terms per macrocell expandable to 40, 7.5 ns pin-to-pin delay, and support for 125 MHz registered operation. It integrates legacy TTL/SSI/MSI logic and classic PLD functions in industrial control, PCI interface bridging, and reconfigurable I/O subsystems.
For engineers reviewing the ATF1508AS-10AU100 datasheet, ATF1508AS-10AU100 pinout, ATF1508AS-10AU100 application, or ATF1508AS-10AU100 equivalent, key selection criteria include JTAG ISP capability, dual-voltage I/O (3.3V/5.0V), programmable slew rate, pin-keeper inputs, and PCI-compliant drive strength - all validated for 100-lead TQFP packaging.
Technical Context
The ATF1508AS-10AU100 implements a hierarchical CPLD architecture with 128 flexible macrocells, each containing five product-term logic blocks feeding OR/XOR/cascade logic, D/T/latch-configurable flip-flops, and programmable output enable/slew/open-collector options. Its global bus carries up to 100 signals (inputs, I/Os, buried feedback), with switch matrices selecting up to 40 signals per logic block.
It supports IEEE 1149.1–1990/1149.1a–1993 boundary-scan testing and Fast In-System Programming via dedicated TDI/TDO/TMS/TCK pins. Power management includes automatic 10 µA standby (L-version), pin-controlled power-down (<10 mA), individual macrocell reduced-power mode, and VCCIO/VCCINT separation enabling mixed-voltage I/O operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 128 macrocells - enables integration of multiple TTL/SSI/MSI functions into single device |
| Pin-to-pin Delay | 7.5 ns - ensures timing closure in high-speed control and interface logic |
| Max Registered Frequency | 125 MHz - supports fast synchronous state machines and data-path logic |
| I/O Voltage Support | 3.3 V or 5.0 V - allows direct interfacing with both legacy 5V and modern 3.3V systems |
| Program/Erase Cycles | 10,000 - guarantees field-upgradable logic configuration over extended product lifecycle |
| Data Retention | 20 years - maintains programmed logic without refresh in unpowered storage |
| JTAG Compliance | IEEE Std. 1149.1-1990 & 1149.1a-1993 - enables standardized boundary-scan test and ISP |
Pinout & Package
ATF1508AS-10AU100 is packaged in a 100-lead Thin Quad Flat Package (TQFP), measuring 14 mm × 14 mm × 1.4 mm, with 0.5 mm lead pitch and RoHS-compliant (Pb/Halide-free) construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–25, 76–100 | Bi-directional I/O | Configurable as input, output, or bidirectional; supports programmable slew rate, open-collector, and pin-keeper |
| 26, 27, 74, 75 | GCLK1–GCLK3 / GCLR | Global clock inputs (3) and global clear - individually assignable per macrocell for asynchronous reset |
| 28, 29, 72, 73 | OE1 / OE2 | Output enable controls - selectable per macrocell for fine-grained I/O gating |
| 30, 31, 70, 71 | PD1 / PD2 | Pin-controlled power-down - asserts low-power mode (<10 mA) when driven high |
| 32, 33, 68, 69 | TCK / TMS / TDI / TDO | JTAG ISP and boundary-scan interface - enables in-circuit programming and test without removal |
| 34, 35, 66, 67 | VCCIO | I/O power supply - independently set to 3.3 V or 5.0 V to match interfaced logic family |
| 36, 65 | VCCINT | Core logic power supply - fixed at 5.0 V for internal buffers and routing resources |
| 37, 38, 63, 64, 62 | GND | Ground reference - multiple dedicated pins reduce noise and improve signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| Flexible Macrocell Architecture | Each of 128 macrocells supports D/T/latch flip-flops, XOR-based arithmetic, buried registered feedback, and combinatorial outputs - enabling efficient state machine and glue logic implementation |
| PCI-Compliant Output Drivers | Meets PCI DC/AC specs: VOH ≥ 2.4 V @ –2 mA, VOL ≤ 0.55 V @ 3–6 mA, ±44 mA AC sink/source - suitable for add-in card logic interfacing |
| Programmable Pin-keeper | Prevents floating inputs/I/Os by latching last driven state - eliminates need for external pull-ups and reduces system noise and static power |
| Three Global Clock Inputs | GCLK1–GCLK3 allow independent clock domains per logic region - critical for multi-clock domain designs like protocol bridges and FIFO controllers |
| Input Transition Detection (ITD) | Detects edges on global clocks, inputs, and I/Os - enables low-latency interrupt generation and asynchronous event capture without external circuitry |
| Security Fuse + User Signature | Fuse prevents unauthorized readback; two bytes (16-bit) of user-accessible signature store project ID, revision, or date - supports traceability and version control |
Applications
| Industrial PLC I/O Expansion | PCI Bus Interface Logic |
|---|---|
Use Scenario: Replacing discrete TTL logic in programmable logic controller backplanes to manage sensor inputs, relay outputs, and serial communication handshaking. IC Role / Device Role / Timing Role: Configurable glue logic performing level translation, signal conditioning, and synchronous register staging between microcontroller and field I/O modules. Use Value: Reduces board space by >70% vs. discrete solutions while supporting field firmware updates via JTAG ISP - accelerating maintenance cycles. |
Use Scenario: Implementing address decoding, bus arbitration, and status reporting in PCI add-in cards for industrial data acquisition systems. IC Role / Device Role / Timing Role: PCI-compliant CPLD acting as bridge between host CPU and custom peripherals, handling IDSEL, FRAME#, IRDY#, TRDY# handshake timing. Use Value: Meets PCI electrical specs (VOH/VOL, drive strength, slew) without external buffers - simplifies compliance testing and reduces BOM cost. |
| Legacy System Emulation | Reconfigurable Test Fixture Logic |
Use Scenario: Emulating obsolete PAL/GAL devices in aging telecom or medical equipment where original parts are unavailable. IC Role / Device Role / Timing Role: Pin-compatible replacement for 20-pin to 24-pin GAL16V8/GAL22V10, replicating exact Boolean equations and propagation delays. Use Value: Restores functionality without PCB redesign; 7.5 ns delay and 125 MHz register speed exceed most legacy PLD performance envelopes. |
Use Scenario: Providing dynamic signal routing, stimulus generation, and response capture in automated test equipment for mixed-signal PCB validation. IC Role / Device Role / Timing Role: Field-reprogrammable logic sequencer controlling test vectors, sampling windows, and pass/fail flagging based on real-time analog comparator outputs. Use Value: Enables one hardware platform to validate multiple board variants via software-defined logic - reducing test fixture inventory and setup time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCR3256XL-10TQ144I | 256 macrocells, 10 ns delay, 3.3 V only, no VCCINT/VCCIO separation | Better density and lower power, but lacks 5 V tolerance and PCI drive strength | Choose for new 3.3 V-only designs requiring higher logic capacity and lower ICC |
| EPM7128SLC84-10 | 128 macrocells, 10 ns delay, 5 V only, non-JTAG ISP (requires UV erasure or parallel programmer) | Legacy pinout compatibility with older Altera designs, no in-system reprogramming | Choose only for drop-in replacement in existing EPM7128S-based boards with no ISP requirement |
Compared with XCR3256XL-10TQ144I and EPM7128SLC84-10, the ATF1508AS-10AU100 uniquely balances 5 V/3.3 V I/O flexibility, PCI compliance, and full JTAG ISP - making it optimal for industrial upgrades and mixed-voltage interface bridging where field reconfiguration and legacy voltage support are mandatory.
Availability
ATF1508AS-10AU100 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, PCI bus interface logic, and legacy system emulation requiring stable component supply across extended product lifecycles.
Supply support for ATF1508AS-10AU100 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 ATF1508AS series, with long-term availability commitments and technical documentation.
The ATF1508AS product line was designed for high-reliability, field-upgradable logic in industrial automation, telecommunications infrastructure, and military/aerospace subsystems - emphasizing in-system programmability, mixed-voltage operation, and robust ESD/latch-up immunity.
FAQ
What is the operating temperature range for the ATF1508AS-10AU100?
The ATF1508AS-10AU100 is rated for industrial temperature operation from –40°C to +85°C. This specification is validated across all DC and AC parameters in the official datasheet (Rev. 0784P–PLD–7/05), ensuring reliable performance in harsh environments such as factory-floor controllers and outdoor telecom cabinets where the ATF1508AS-10AU100 is commonly deployed.
Does the ATF1508AS-10AU100 support both 3.3 V and 5.0 V I/O simultaneously?
Yes - the ATF1508AS-10AU100 uses separate VCCIO and VCCINT supplies: VCCINT must be 5.0 V (for core logic), while VCCIO can be independently set to either 3.3 V or 5.0 V. This allows the ATF1508AS-10AU100 to interface with mixed-voltage systems, such as a 5 V microcontroller communicating with 3.3 V sensors, without level shifters.
How does the pin-keeper feature function on the ATF1508AS-10AU100?
The ATF1508AS-10AU100's programmable pin-keeper latches the last driven logic state (high or low) on configured inputs and I/Os when they float, preventing indeterminate voltages that cause shoot-through current and noise. This eliminates external pull-up resistors and their associated DC power loss - a verified design value confirmed in the "Programmable Pin-keeper Option" section of the ATF1508AS-10AU100 datasheet.
Is the ATF1508AS-10AU100 compatible with PCI bus specifications?
Yes - the ATF1508AS-10AU100 meets PCI 2.2 DC and AC electrical requirements, including VOH ≥ 2.4 V at –2 mA, VOL ≤ 0.55 V at 3–6 mA, and ±44 mA AC sink/source capability. These values are explicitly listed in the "PCI DC Characteristics" and "PCI AC Characteristics" tables of the ATF1508AS-10AU100 datasheet (pages 12–13), confirming suitability for PCI add-in card logic.
Can the ATF1508AS-10AU100 be programmed in-system after soldering to the PCB?
Yes - the ATF1508AS-10AU100 supports Fast In-System Programming (ISP) via its dedicated 4-pin JTAG interface (TCK/TMS/TDI/TDO), compliant with IEEE Std. 1149.1. This allows full configuration, reprogramming, and boundary-scan testing without removing the ATF1508AS-10AU100 from the board - a core capability documented in the "ISP Programming" and "JTAG-BST Overview" sections of its datasheet.
ATF1508AS-10AU100 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:
- 10 ns
- Voltage Supply - Internal:
- 4.5V ~ 5.5V
- 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)
ATF1508AS-10AU100 FAQ
1.How can I place an order for ATF1508AS-10AU100 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1508AS-10AU100 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 ATF1508AS-10AU100 reliable?
The price and inventory of ATF1508AS-10AU100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1508AS-10AU100 is usually 5 days.
3.What payment methods are accepted for ATF1508AS-10AU100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1508AS-10AU100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1508AS-10AU100?
ATF1508AS-10AU100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1508AS-10AU100 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 ATF1508AS-10AU100?
For technical support, including ATF1508AS-10AU100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1508AS-10AU100 requirements.
6.How does Aetrix verify that ATF1508AS-10AU100 is sourced from the original manufacturer or authorized distributors?
All ATF1508AS-10AU100 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 ATF1508AS-10AU100 meets industry standards.
7.What is the process for return or replacement of ATF1508AS-10AU100?
All ATF1508AS-10AU100 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1508AS-10AU100, 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 ATF1508AS-10AU100 part is unused and in its original packaging.
Return procedure for ATF1508AS-10AU100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1508AS-10AU100 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…
