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Microchip Technology ATF1508AS-10QI100
- Part No.:
- ATF1508AS-10QI100
- Manufacturer:
- Microchip Technology
- Package:
- 100-BQFP
- Datasheet:
-
ATF1508AS-10QI100.pdf
- Description:
- IC CPLD 128MC 10NS 100QFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ATF1508AS-10QI100 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), and 7.5 ns pin-to-pin delay. It operates up to 125 MHz in registered mode, supports 3.3 V or 5.0 V I/O, and is packaged in a 100-lead TQFP for industrial temperature range (–40°C to +85°C). It serves as a logic integration solution in PCI-compliant interface controllers and legacy system replacements.
For engineers reviewing the ATF1508AS-10QI100 datasheet, ATF1508AS-10QI100 pinout, ATF1508AS-10QI100 application, or ATF1508AS-10QI100 equivalent, key selection criteria include JTAG ISP capability, dual VCCINT/VCCIO supply architecture, programmable slew rate and open-collector outputs, power-down control via PD1/PD2 pins, and IEEE 1149.1 boundary-scan compliance.
Technical Context
The ATF1508AS-10QI100 implements a hierarchical routing architecture with a global bus feeding all 128 macrocells and regional foldback buses enabling up to 40-product-term sum-of-products logic. Each macrocell supports D/T/latch flip-flops, individual output enable, and buried registered feedback - allowing combinatorial outputs with internal latching.
It features three global clock inputs (GCLK1–GCLK3), input transition detection (ITD) on clocks and I/Os, programmable pin-keeper circuits, VCC power-up reset with selectable hysteresis, and PCI-compliant drive strength (±44 mA high, +206 mA low at test points). The device uses EEPROM-based nonvolatile configuration 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/SSI/MSI devices in single-chip logic consolidation |
| Pin-to-Pin Delay | 7.5 ns - supports timing-critical control paths in industrial PLCs and communication interfaces |
| Max Registered Frequency | 125 MHz - suitable for synchronous state machines in data acquisition and protocol bridging |
| I/O Voltage Support | 3.3 V or 5.0 V - allows mixed-voltage board design without level shifters |
| Power Supply Architecture | VCCINT = 5.0 V only; VCCIO = 2.7–3.6 V or 4.75–5.25 V - decouples core logic from I/O drive requirements |
| JTAG Compliance | IEEE Std. 1149.1-1990 & 1149.1a-1993 - enables boundary-scan testing and in-system programming without socket removal |
| PCI Compliance | Meets DC/AC drive specs per PCI Rev 2.2 - supports direct integration into add-in cards and host bridge logic |
Pinout & Package
ATF1508AS-10QI100 is housed in a 100-lead Thin Quad Flat Package (TQFP), RoHS-compliant, with 0.5 mm pitch and exposed thermal pad. Pin assignment matches the 100-lead TQFP top-view layout shown in Atmel document 0784P–PLD–7/05.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–25, 26–50, 51–75, 76–100 | Bi-directional I/O or dedicated input | 96 usable I/O + 4 dedicated inputs (GCLR, OE1, OE2/GCLK2, GCLK1); each supports programmable slew, open-collector, and pin-keeper |
| GCLK1, GCLK2, GCLK3 | Global clock inputs | Three independent clock domains; GCLK2 doubles as OE2; ITD circuitry detects edges for asynchronous event capture |
| PD1, PD2 | Power-down control inputs | Active-high pins that reduce ICC to <10 mA; disable logic transitions but retain register and output states |
| TCK, TMS, TDI, TDO | JTAG boundary-scan and ISP interface | 4-pin IEEE 1149.1 interface; supports programming, debug, and production test; pull-up optional on TMS/TDI |
| VCCINT (pins 36, 71) | Core logic supply | Must be connected to 5.0 V ±5%; powers input buffers and macrocell logic - not configurable for 3.3 V |
| VCCIO (pins 3, 16, 25, 42, 59, 78, 87, 99) | I/O drive supply | Configurable for 3.3 V (2.7–3.6 V) or 5.0 V (4.75–5.25 V); sets output voltage swing and drive strength |
| GND (pins 24, 50, 75, 100) | Ground reference | Four dedicated ground pins minimize noise coupling and improve signal integrity across high-speed I/O banks |
Key Features
| Feature | Design Value |
|---|---|
| Programmable pin-keeper | Prevents floating inputs/I/Os without external pull-ups - reduces BOM count and eliminates DC leakage current |
| Buried registered feedback | Enables combinatorial output macrocells to generate internal latched signals - increases effective logic density without extra macrocells |
| Individual macrocell power control | Reduced-power bit per macrocell cuts dynamic power by >50% in idle sections - critical for thermally constrained industrial enclosures |
| PCI-compliant I/O drivers | Delivers –44 mA (high) and +206 mA (low) at defined test points - meets PCI Rev 2.2 electrical requirements for add-in card designs |
| Security fuse + User Signature | Fuse prevents unauthorized readback; two bytes (16 bits) of user-accessible signature remain readable - supports traceability and revision control |
Applications
| Industrial PLC I/O Expansion | Legacy System Emulation |
|---|---|
Use Scenario: Replacing discrete 74-series logic in modular I/O modules requiring field-upgradable control logic. IC Role / Device Role / Timing Role: CPLD implementing address decoding, interrupt arbitration, and status multiplexing with deterministic 7.5 ns propagation. Use Value: Eliminates 12+ SSI/MSI ICs per module; JTAG ISP enables firmware updates without hardware change or factory rework. |
Use Scenario: Emulating obsolete PAL/GAL devices in avionics maintenance test equipment with unchanged PCB layout. IC Role / Device Role / Timing Role: Pin-compatible logic replacement using same 100-TQFP footprint and JEDEC-compliant timing models. Use Value: Maintains original timing margins while adding security fuse protection and 20-year data retention - extends service life beyond legacy parts. |
| PCI Interface Bridge Logic | Automated Test Equipment (ATE) Control |
Use Scenario: Implementing command decode, bus arbitration, and status reporting in PCI add-in cards for industrial vision systems. IC Role / Device Role / Timing Role: PCI-compliant CPLD handling IDSEL decoding, parity generation, and target abort response within 10 ns setup window. Use Value: Meets PCI Rev 2.2 AC/DC specs without external bus transceivers - reduces layer count and improves signal integrity. |
Use Scenario: Generating synchronized stimulus patterns and capturing response signatures in boundary-scan test fixtures. IC Role / Device Role / Timing Role: JTAG-controlled logic sequencer with precise edge-aligned outputs and real-time feedback monitoring via BSC chain. Use Value: Enables full IEEE 1149.1 test coverage including interconnect, cluster, and functional testing - reduces ATE validation time by 40%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATF1508ASV-10QI100 | Same logic architecture and pinout; includes enhanced voltage tolerance (up to 5.5 V on VCCIO) and improved ESD rating (4 kV HBM) | Preferred for new designs requiring extended voltage margin or higher reliability in harsh environments | Select when operating VCCIO above 5.25 V or in high-noise industrial settings where robustness outweighs cost sensitivity |
| XC95144XL-10TQ100C | Xilinx CoolRunner-II family; 144 macrocells, 5 ns tPD, 178 MHz fMAX; requires different toolchain and JEDEC file format | Higher density and speed; lacks built-in PCI drive strength and pin-keeper option | Choose for designs needing >128 macrocells or sub-5 ns timing; verify PCI compliance via external drivers if required |
Compared with ATF1508ASV-10QI100, the ATF1508AS-10QI100 offers identical functionality at lower cost but reduced voltage headroom; versus XC95144XL-10TQ100C, it provides native PCI drive and simpler migration from legacy Atmel PLDs, though with lower macrocell count and slower max frequency.
Availability
ATF1508AS-10QI100 is available at Aetrix Electronics and suitable for industrial PLCs, PCI add-in cards, and automated test equipment requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ATF1508AS-10QI100 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 legacy programming tools.
The ATF1508AS series was designed for high-reliability logic consolidation in industrial, communications, and test equipment - emphasizing in-system programmability, mixed-voltage I/O, and long-term data retention.
FAQ
What is the maximum operating frequency of the ATF1508AS-10QI100 in registered mode?
The ATF1508AS-10QI100 supports registered operation up to 125 MHz, as specified in its AC characteristics table under "Registered Operation." This frequency assumes optimal placement and routing in the target design, with VCCINT = 5.0 V and appropriate VCCIO setting. The 7.5 ns pin-to-pin delay enables reliable timing closure in synchronous control logic implemented in the ATF1508AS-10QI100.
Does the ATF1508AS-10QI100 support both 3.3 V and 5.0 V I/O simultaneously?
No - the ATF1508AS-10QI100 supports either 3.3 V or 5.0 V I/O operation, but not both simultaneously. VCCIO must be set to a single voltage (2.7–3.6 V for 3.3 V mode or 4.75–5.25 V for 5.0 V mode), while VCCINT is fixed at 5.0 V. All I/O pins share the same VCCIO rail, so mixed-voltage I/O banks are not supported in the ATF1508AS-10QI100.
How does the power-down feature work on the ATF1508AS-10QI100?
The ATF1508AS-10QI100 implements pin-controlled power-down via PD1 or PD2 inputs. When enabled in the design file and driven high, these pins reduce ICC to under 10 mA while latching all internal register and output states. Inputs (except PDx) are blocked, but pin-keeper circuits maintain I/O levels. The ATF1508AS-10QI100 resumes normal operation within 1 µs after PDx returns low.
Is JTAG boundary-scan supported on the ATF1508AS-10QI100?
Yes - the ATF1508AS-10QI100 fully supports IEEE Std. 1149.1-1990 and 1149.1a-1993 boundary-scan testing. It includes dedicated TCK, TMS, TDI, and TDO pins with BSDL models available from Microchip. Each I/O and input pin has a boundary-scan cell, enabling interconnect testing, in-system programming, and debug visibility without requiring additional test points on the ATF1508AS-10QI100 PCB.
Can the ATF1508AS-10QI100 replace older ATF1502 or ATF1504 devices?
Yes - the ATF1508AS-10QI100 is backward-compatible with earlier ATF1502AS/ATF1504AS devices in pinout and programming flow. Its 128-macrocell capacity supersedes the 32- and 64-macrocell variants, and the same Atmel WinCUPL or third-party tools can compile legacy source files. Migration requires verifying timing constraints and updating JEDEC files, but no PCB changes are needed for the 100-TQFP ATF1508AS-10QI100 package.
ATF1508AS-10QI100 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF15xx
- Package/Case:
- 100-BQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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-10QI100 FAQ
1.How can I place an order for ATF1508AS-10QI100 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1508AS-10QI100 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-10QI100 reliable?
The price and inventory of ATF1508AS-10QI100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1508AS-10QI100 is usually 5 days.
3.What payment methods are accepted for ATF1508AS-10QI100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1508AS-10QI100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1508AS-10QI100?
ATF1508AS-10QI100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1508AS-10QI100 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-10QI100?
For technical support, including ATF1508AS-10QI100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1508AS-10QI100 requirements.
6.How does Aetrix verify that ATF1508AS-10QI100 is sourced from the original manufacturer or authorized distributors?
All ATF1508AS-10QI100 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-10QI100 meets industry standards.
7.What is the process for return or replacement of ATF1508AS-10QI100?
All ATF1508AS-10QI100 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1508AS-10QI100, 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-10QI100 part is unused and in its original packaging.
Return procedure for ATF1508AS-10QI100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1508AS-10QI100 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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