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Microchip Technology ATF1508ASVL-20QC100
- Part No.:
- ATF1508ASVL-20QC100
- Manufacturer:
- Microchip Technology
- Package:
- 100-BQFP
- Datasheet:
-
ATF1508ASVL-20QC100.pdf
- Description:
- IC CPLD 128MC 20NS 100QFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ATF1508ASVL-20QC100 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 JTAG boundary-scan (IEEE 1149.1), in-system programming, and PCI-compliant I/O for embedded control logic integration.
For engineers reviewing the ATF1508ASVL-20QC100 datasheet, ATF1508ASVL-20QC100 pinout, ATF1508ASVL-20QC100 application, or ATF1508ASVL-20QC100 equivalent, key selection criteria include its 100-lead TQFP package, 3.0–3.6 V supply range, automatic 5 µA standby current, programmable slew rate, and JTAG-based ISP capability for field updates.
Technical Context
The ATF1508ASVL-20QC100 implements a hierarchical CPLD architecture with eight logic chains, each supporting up to 40-product-term sum-of-products logic via cascade paths. Its global bus carries all 100 inputs plus 128 buried macrocell feedback signals, feeding switch matrices that select up to 40 signals per logic block.
Each macrocell integrates configurable D/T/latch flip-flops, XOR/OR/cascade logic, programmable output enable, open-collector option, and individual reduced-power mode control. Three dedicated global clock pins (GCLK1–3), input transition detection (ITD) circuits, and fast registered input from product term enable precise timing control in synchronous state machines and glue logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 128 macrocells - provides gate count equivalent to ~2000 usable PLD gates for medium-complexity control logic. |
| Max Pin-to-pin Delay | 15 ns at -20 speed grade - ensures deterministic timing for 66 MHz system clock domains with setup/hold margin. |
| Operating Voltage | 3.0 V to 3.6 V - compatible with 3.3 V LVTTL/LVCMOS I/O standards and industrial power rails. |
| Standby Current | 5 µA (L version) - enables ultra-low-power retention in battery-backed or always-on monitoring systems. |
| JTAG Compliance | IEEE Std. 1149.1-1990 & 1149.1a-1993 - supports production boundary-scan test, in-circuit debugging, and secure ISP without board removal. |
| Program Cycles | 10,000 erase/program cycles - supports iterative firmware development and field reconfiguration over product lifetime. |
| Data Retention | 20 years - guarantees nonvolatile configuration integrity across extended storage or deployment periods. |
Pinout & Package
ATF1508ASVL-20QC100 is housed in a 100-lead Thin Quad Flat Package (TQFP) with 0.5 mm pitch, RoHS-compliant, green (Pb/Halide-free) construction. Thermal performance supports industrial temperature range (-40°C to +85°C) operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I/O/PD1 | Power-down control input | Asserting high places device in sub-5 mA power-down mode; latches internal state and holds outputs valid. |
| INPUT/GCLR | Global asynchronous clear | Resets all macrocell flip-flops simultaneously; may be OR'd with product term for conditional reset. |
| INPUT/OE1 | Global output enable 1 | Selects true/complement enable for subsets of I/Os; configured automatically by fitter software. |
| I/O/GCLK3 | Global clock input 3 | Third dedicated clock source for independent timing domains; supports ITD for edge-triggered wake-up. |
| I/O/TDI | JTAG test data input | Serial input for BSDL scan chain and ISP programming; includes optional internal pull-up. |
| I/O/TMS | JTAG test mode select | Controls TAP controller state transitions; includes optional internal pull-up for robust initialization. |
| I/O/TCK | JTAG test clock | Drives boundary-scan and ISP operations; requires clean 50% duty cycle for reliable JTAG compliance. |
| I/O/TDO | JTAG test data output | Serial output for scan-out; high-impedance when TMS = 0 and TCK inactive. |
| VCCIO | I/O power supply | Separate 3.3 V rail for I/O buffers - decouples core logic voltage from interface signaling levels. |
| VCCINT | Core logic power supply | 3.3 V supply for macrocell array and routing resources; shares rail with VCCIO in most designs. |
| GND | Ground reference | Eight dedicated ground pins distributed across package corners and edges to minimize ground bounce. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable pin-keeper | Prevents floating inputs/I/Os without external pull-ups - eliminates DC leakage and noise in unconnected logic interfaces. |
| Individual macrocell power control | Reduces ICC3 by disabling unused logic paths - lowers standby current in partial-logic-utilization applications. |
| Combinatorial output with registered feedback | Enables dual-latch behavior within single macrocell - supports compact state machine encoding without extra resource allocation. |
| Input transition detection (ITD) | Generates asynchronous pulses on signal edges at GCLK, INPUT, or I/O pins - enables low-power wake-up from sleep modes. |
| Security fuse | Blocks readback of fuse pattern while preserving User Signature access - protects IP in deployed systems. |
Applications
| Industrial PLC I/O Module | PCI Bus Glue Logic |
|---|---|
Use Scenario: Replacing discrete TTL logic in modular I/O backplanes requiring hot-swap support and deterministic response. IC Role / Device Role / Timing Role: CPLD implementing address decoding, interrupt arbitration, and register-mapped I/O control with 15 ns propagation delay. Use Value: Reduces component count by >70% vs. SSI/MSI solutions while maintaining full JTAG testability and field-upgradable firmware. | Use Scenario: Interfacing legacy peripherals to PCI Local Bus in embedded instrumentation systems. IC Role / Device Role / Timing Role: PCI-compliant logic translating between 33 MHz PCI timing and slower peripheral clocks using three global clocks. Use Value: Meets PCI specification tSU/tH requirements with 11 ns global clock setup time and supports burst-mode transfers via fast cascade logic. |
| Automotive Body Control Unit | Medical Device Power Sequencer |
Use Scenario: Managing lighting, door lock, and window motor control in ECU modules operating across -40°C to +85°C. IC Role / Device Role / Timing Role: Fault-tolerant control logic with programmable slew rate to suppress EMI in safety-critical wiring harnesses. Use Value: Achieves CISPR-25 Class 5 emissions compliance via adjustable output edge rates and 200 mA latch-up immunity. | Use Scenario: Sequencing power rails for FPGA, ADC, and analog front-end in portable diagnostic equipment. IC Role / Device Role / Timing Role: State-machine-based sequencer with power-up reset hysteresis and PD1-controlled deep-sleep entry. Use Value: Guarantees deterministic initialization at 3.0 V using Large-hysteresis power-up reset and maintains <5 µA quiescent current during standby. |
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, 10 ns tPD, but lacks integrated power-down mode and pin-keeper circuitry. | Higher speed grade but no automatic 5 µA standby - less suitable for battery-powered or thermally constrained systems. | Choose for pure speed-critical glue logic where ultra-low standby is not required. |
| EPM3128ATC100-10 | 128 macrocells, 3.3 V, 10 ns tPD, supports JTAG ISP but uses different BSDL model and has no ITD circuits. | No input transition detection - cannot implement edge-triggered wake-up without external components. | Choose when migrating from Intel MAX 3000A toolchain and JTAG test infrastructure is already established. |
Compared with XCR3128XL-10VQ100C and EPM3128ATC100-10, the ATF1508ASVL-20QC100 uniquely combines sub-5 µA standby, programmable pin-keeper, and ITD in a single 100-lead TQFP package - making it optimal for energy-sensitive, field-upgradable industrial controllers.
Availability
ATF1508ASVL-20QC100 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, PCI bus interface designs, and automotive body control units requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for ATF1508ASVL-20QC100 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 legacy Atmel PLD families including the ATF1508ASV series.
The ATF1508ASV(L) product line was designed for high-reliability, in-system programmable control logic in industrial automation, communications infrastructure, and medical electronics where field upgrades and testability are critical.
FAQ
What is the maximum operating frequency of the ATF1508ASVL-20QC100?
The ATF1508ASVL-20QC100 supports a maximum internal global clock frequency of 66 MHz and a maximum array clock frequency of 58.8 MHz, as specified in its -20 speed grade AC characteristics table. Registered operation achieves up to 77 MHz under optimized conditions. These values are measured with VCCIO = 3.3 V, CL = 35 pF, and slow slew rate disabled. The ATF1508ASVL-20QC100 datasheet confirms fCNT = 66 MHz and fACNT = 58.8 MHz for the -20 variant.
Does the ATF1508ASVL-20QC100 support in-system programming (ISP)?
Yes, the ATF1508ASVL-20QC100 supports IEEE 1149.1-compliant in-system programming via its four-pin JTAG interface (TCK, TMS, TDI, TDO). ISP allows full configuration loading, erasure, and verification without removing the device from the PCB. The ATF1508ASVL-20QC100 also supports Serial Vector Format (SVF) files for ATE integration and permits disabling JTAG to reclaim four I/O pins when ISP is not needed.
What is the purpose of the PD1 and PD2 pins on the ATF1508ASVL-20QC100?
The PD1 and PD2 pins on the ATF1508ASVL-20QC100 provide pin-controlled power-down functionality. When asserted high, either pin reduces supply current to below 5 mA while latching all internal logic states and maintaining valid registered/combinatorial outputs. During power-down, input signals (except PDx) are blocked, and pin-keeper circuits prevent floating I/Os. The feature is enabled in the design source file and disables use of the associated macrocell's logic array input.
How does the ATF1508ASVL-20QC100 handle power-up reset?
The ATF1508ASVL-20QC100 includes a power-up reset circuit with selectable hysteresis (Small or Large). With Large hysteresis enabled - recommended for 3.0 V operation - registers initialize reliably when VCC crosses VRST, and ICC drops by several hundred microamps. The ATF1508ASVL-20QC100 requires monotonic VCC rise, proper setup/hold timing before first clock edge, and complete power-off if VCC falls below 2.0 V to ensure robust reset behavior.
Can the ATF1508ASVL-20QC100 be used in industrial temperature applications?
Yes, the ATF1508ASVL-20QC100 is rated for industrial temperature range (-40°C to +85°C) operation and is available in the "L" version specifically optimized for low-power industrial environments. Its 5 µA standby current, 200 mA latch-up immunity, and 2000 V ESD protection meet stringent industrial reliability requirements. The 100-lead TQFP package is qualified for extended thermal cycling and moisture sensitivity level 3 (MSL3) handling.
ATF1508ASVL-20QC100 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:
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-PQFP (14x20)
ATF1508ASVL-20QC100 FAQ
1.How can I place an order for ATF1508ASVL-20QC100 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1508ASVL-20QC100 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-20QC100 reliable?
The price and inventory of ATF1508ASVL-20QC100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1508ASVL-20QC100 is usually 5 days.
3.What payment methods are accepted for ATF1508ASVL-20QC100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1508ASVL-20QC100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1508ASVL-20QC100?
ATF1508ASVL-20QC100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1508ASVL-20QC100 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-20QC100?
For technical support, including ATF1508ASVL-20QC100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1508ASVL-20QC100 requirements.
6.How does Aetrix verify that ATF1508ASVL-20QC100 is sourced from the original manufacturer or authorized distributors?
All ATF1508ASVL-20QC100 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-20QC100 meets industry standards.
7.What is the process for return or replacement of ATF1508ASVL-20QC100?
All ATF1508ASVL-20QC100 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1508ASVL-20QC100, 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-20QC100 part is unused and in its original packaging.
Return procedure for ATF1508ASVL-20QC100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1508ASVL-20QC100 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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