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Microchip Technology ATF1508AS-10QU100
- Part No.:
- ATF1508AS-10QU100
- Manufacturer:
- Microchip Technology
- Package:
- 100-BQFP
- Datasheet:
-
ATF1508AS-10QU100.pdf
- Description:
- IC CPLD 128MC 10NS 100QFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ATF1508AS-10QU100 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), 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 a single 100-lead TQFP package with 3.3 V or 5.0 V I/O compatibility, used in PCI-compliant interface bridging and industrial control state-machine implementation.
For engineers reviewing the ATF1508AS-10QU100 datasheet, ATF1508AS-10QU100 pinout, ATF1508AS-10QU100 application, or ATF1508AS-10QU100 equivalent, key selection criteria include JTAG ISP capability, dual VCCINT/VCCIO power domains, programmable slew rate and open-collector outputs, PCI-compliant drive strength, and power-down mode via PD1/PD2 pins.
Technical Context
The ATF1508AS-10QU100 implements a hierarchical routing architecture with global and regional buses: all 128 macrocell outputs and all I/O pins feed a shared global bus, while each macrocell generates a foldback term routed to a 16-macrocell regional bus. Its switch matrix selects up to 40 signals from the global bus per logic block, enabling high-fan-in sum-of-products synthesis.
Each macrocell supports D/T/latch flip-flops with individually selectable clock sources (global GCLK1–GCLK3 or product-term-derived), asynchronous reset/preset (GCLEAR or product term), and combinatorial output with registered feedback - all configurable per macrocell without resource penalty. Input Transition Detection (ITD) circuits are present on global clocks, inputs, and I/Os for edge-sensitive wake-up and glitch filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 128 macrocells - provides gate count equivalent to ~2,000 usable PLD gates with full routing flexibility. |
| Pin-to-pin Delay | 7.5 ns - enables synchronous logic operation up to 125 MHz in registered mode. |
| I/O Voltage Support | 3.3 V or 5.0 V - dual VCCIO domain allows mixed-voltage board interfacing without level shifters. |
| Power Management | 10 µA standby ("L" version), pin-controlled 1 mA power-down - reduces idle current by >99% vs. active mode. |
| JTAG Compliance | IEEE Std. 1149.1-1990 & 1149.1a-1993 - enables boundary-scan testing and in-system programming via standard 4-pin interface. |
| PCI Compliance | Meets PCI DC/AC drive specs (e.g., VOH ≥ 2.4 V @ –2 mA, VOL ≤ 0.55 V @ 3–6 mA) - directly interfaces PCI bus without external buffers. |
| Programmability | 10,000 program/erase cycles, 20-year data retention - supports field updates and long-life industrial deployment. |
Pinout & Package
ATF1508AS-10QU100 is packaged in a 100-lead Thin Quad Flat Package (TQFP), RoHS-compliant, with 0.5 mm pitch and 14 mm × 14 mm body. Pin 1 is marked by corner notch; top-side marking includes "ATF1508AS-10QU100" and date code.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–25, 26–50, 51–75, 76–100 | Bi-directional I/O or dedicated input | Up to 96 user-configurable I/Os; four dedicated pins (GCLR, OE1, OE2/GCLK2, GCLK1) double as global control signals. |
| 26, 53 | PD1 / PD2 | Active-high power-down control inputs - assert either to reduce ICC to <10 mA; disables logic transitions but holds register and output states. |
| 3, 14, 27, 40 | TDI, TMS, TCK, TDO | JTAG test access port - enables boundary-scan testing and ISP programming; TMS/TDI have optional internal pull-ups. |
| 13, 30, 47, 64, 81, 98 | VCCIO | I/O power supply pins - must be tied to same 3.3 V or 5.0 V rail; decoupling required per pin. |
| 51, 76 | VCCINT | Core logic power supply - fixed 5.0 V only; powers input buffers and macrocell logic regardless of I/O voltage. |
| 25, 50, 75, 100 | GND | Ground reference pins - four dedicated ground connections improve noise immunity and AC performance. |
| 65 | GCLK3 | Third global clock input - provides additional timing domain for multi-clock designs; supports ITD circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable pin-keeper | Prevents floating inputs/I/Os by latching last driven state - eliminates need for external pull-ups and reduces system noise. |
| Flexible macrocell configuration | Each macrocell supports D/T/latch flip-flops, XOR-based arithmetic, buried registered feedback, and combinatorial output with foldback - maximizes logic utilization per cell. |
| Three global clock inputs | GCLK1, GCLK2/OE2, GCLK3 enable independent clock domains for state machines, counters, and synchronous peripherals. |
| Input Transition Detection (ITD) | Dedicated edge-detection circuits on global clocks, inputs, and I/Os - enables low-power wake-up and glitch-resistant interrupt generation. |
| PCI-compliant I/O drivers | Guaranteed VOH ≥ 2.4 V @ –2 mA and VOL ≤ 0.55 V @ 3–6 mA - meets PCI Local Bus Rev. 2.2 electrical requirements without external buffers. |
Applications
| PCI Interface Bridge | Industrial Control State Machine |
|---|---|
Use Scenario: Interfacing legacy microcontrollers to PCI bus in embedded instrumentation systems. IC Role / Device Role / Timing Role: CPLD acts as protocol translator and address decoder, generating PCI-compatible control signals (FRAME#, IRDY#, TRDY#) with precise timing alignment. Use Value: Eliminates discrete glue logic; leverages 7.5 ns delay and PCI-compliant drive strength to meet setup/hold timing without external buffers. |
Use Scenario: Real-time sequencing of motor drives, sensors, and safety interlocks in factory automation PLC modules. IC Role / Device Role / Timing Role: Configurable state machine implementing deterministic control flow with synchronized I/O sampling and watchdog-triggered fail-safe outputs. Use Value: 128 macrocells support complex FSMs; programmable slew rate reduces EMI on noisy factory floors; pin-keeper prevents spurious resets during signal transients. |
| Legacy System Emulation | Field-Upgradeable Logic Controller |
Use Scenario: Replacing obsolete TTL/MSI logic (e.g., 74LS series) in avionics maintenance test equipment. IC Role / Device Role / Timing Role: Combinatorial and registered logic emulator replicating timing-critical functions like address decoding, bus arbitration, and parity generation. Use Value: 5-product-term expandability to 40 enables high-fan-in logic; 100% reprogrammability allows functional correction without PCB redesign. |
Use Scenario: Remote firmware-upgradable logic in telecom base station backplanes requiring zero-downtime configuration changes. IC Role / Device Role / Timing Role: In-system programmable logic controller managing hot-swap sequencing, power-rail monitoring, and FPGA configuration handoff. Use Value: JTAG ISP enables field updates via software; security fuse protects proprietary logic; 20-year data retention ensures reliability over equipment lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCR3256XL-10TQ144 | 256 macrocells, 5 V-only I/O, no VCCIO/VCCINT separation; 10 ns tPD; Xilinx CoolRunner-II architecture. | Larger density but lacks 3.3 V I/O support and PCI compliance; requires external level translation for mixed-voltage systems. | Select when higher logic capacity is needed and 5 V-only operation is acceptable; avoid if PCI bus interface or dual-voltage I/O is required. |
| LC4256ZE-7TN144C | 256 macrocells, 3.3 V core/I/O, no 5 V tolerance; 7.5 ns tPD; Lattice ispMACH 4000Z architecture with instant-on capability. | No 5 V I/O support or PCI drive strength; lower static current (10 µA) but lacks PD1/PD2 power-down pins. | Select for ultra-low-power battery-operated systems where 5 V compatibility is unnecessary; avoid for PCI or legacy 5 V interface applications. |
Compared with XCR3256XL-10TQ144 and LC4256ZE-7TN144C, the ATF1508AS-10QU100 uniquely combines 3.3/5 V I/O flexibility, native PCI compliance, and dual-mode power management (standby + pin-controlled power-down), making it optimal for industrial and communications equipment requiring mixed-voltage interoperability and field-upgradeable logic.
Availability
ATF1508AS-10QU100 is available at Aetrix Electronics and suitable for PCI interface bridge design, industrial control state-machine implementation, legacy system emulation, and field-upgradeable logic controller applications requiring stable component supply across extended product lifecycles.
Supply support for ATF1508AS-10QU100 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 ATF1508AS family, including datasheets, BSDL models, and programming tools. The company specializes in secure, reliable, and long-lifecycle semiconductor solutions for industrial, automotive, and communications markets.
The ATF1508AS product line was designed for high-reliability, field-programmable logic replacement of legacy discrete logic and older PLDs in mission-critical systems - emphasizing in-system programmability, PCI compliance, and robust power management for harsh environments.
FAQ
What is the maximum operating frequency of the ATF1508AS-10QU100 in registered mode?
The ATF1508AS-10QU100 supports registered operation up to 125 MHz, verified by its 7.5 ns maximum pin-to-pin delay specification. This timing applies under standard commercial conditions (VCC = 5.0 V ±5%, TA = 0°C to 70°C) with all macrocells configured for registered output and global clock distribution. The ATF1508AS-10QU100 achieves this performance using optimized routing resources and low-skew global clock networks.
Does the ATF1508AS-10QU100 support both 3.3 V and 5.0 V I/O simultaneously?
Yes, the ATF1508AS-10QU100 supports mixed-voltage I/O through separate VCCIO and VCCINT power domains: VCCINT must be 5.0 V for core logic, while VCCIO pins can be independently tied to either 3.3 V or 5.0 V rails. This allows the ATF1508AS-10QU100 to interface directly with both 3.3 V microcontrollers and 5 V peripherals without external level shifters - a key advantage over single-rail CPLDs.
How does the power-down mode function on the ATF1508AS-10QU100?
The ATF1508AS-10QU100 features pin-controlled power-down using PD1 (pin 26) or PD2 (pin 53): asserting either pin high reduces ICC to <10 mA while latching all register and output states. During power-down, inputs are blocked except the active PD pin, and pin-keeper circuits maintain I/O levels. The ATF1508AS-10QU100 resumes full operation within 1 µs after PD goes low, with no loss of configuration.
Is the ATF1508AS-10QU100 compatible with PCI Local Bus Rev. 2.2 specifications?
Yes, the ATF1508AS-10QU100 is explicitly PCI-compliant per Rev. 2.2, meeting all required DC and AC drive characteristics: VOH ≥ 2.4 V at –2 mA, VOL ≤ 0.55 V at 3–6 mA, and specified switching current profiles (IOH/IOH(AC), IOL/IOL(AC)). Its output drivers are sized to meet PCI bus loading without external buffers - confirmed in the official datasheet's PCI DC/AC Characteristics table.
Can the ATF1508AS-10QU100 be programmed in-system after soldering to the PCB?
Yes, the ATF1508AS-10QU100 supports full in-system programming (ISP) via its IEEE 1149.1-compliant 4-pin JTAG interface (TDI, TMS, TCK, TDO). Programming uses 5 V TTL-level signals and does not require device removal. The ATF1508AS-10QU100 remains programmable even when JTAG pins are otherwise used as I/O - the JTAG function is enabled by default unless disabled in the design file.
ATF1508AS-10QU100 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF15xx
- Package/Case:
- 100-BQFP
- 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-PQFP (14x20)
ATF1508AS-10QU100 FAQ
1.How can I place an order for ATF1508AS-10QU100 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1508AS-10QU100 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-10QU100 reliable?
The price and inventory of ATF1508AS-10QU100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1508AS-10QU100 is usually 5 days.
3.What payment methods are accepted for ATF1508AS-10QU100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1508AS-10QU100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1508AS-10QU100?
ATF1508AS-10QU100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1508AS-10QU100 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-10QU100?
For technical support, including ATF1508AS-10QU100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1508AS-10QU100 requirements.
6.How does Aetrix verify that ATF1508AS-10QU100 is sourced from the original manufacturer or authorized distributors?
All ATF1508AS-10QU100 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-10QU100 meets industry standards.
7.What is the process for return or replacement of ATF1508AS-10QU100?
All ATF1508AS-10QU100 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1508AS-10QU100, 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-10QU100 part is unused and in its original packaging.
Return procedure for ATF1508AS-10QU100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1508AS-10QU100 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
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