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Microchip Technology ATF1508ASVL-20AC100
- Part No.:
- ATF1508ASVL-20AC100
- Manufacturer:
- Microchip Technology
- Package:
- 100-TQFP
- Datasheet:
-
ATF1508ASVL-20AC100.pdf
- Description:
- IC CPLD 128MC 20NS 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,047
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Product details
Overview
ATF1508ASVL-20AC100 from Microchip (formerly Atmel) is a high-density, electrically-erasable Complex Programmable Logic Device (CPLD) with 128 macrocells, 3.0–3.6 V operation, 15 ns pin-to-pin delay, and 77 MHz registered logic performance. It integrates TTL/SSI/MSI logic in industrial control, legacy interface bridging, and FPGA companion logic applications.
For engineers reviewing the ATF1508ASVL-20AC100 datasheet, ATF1508ASVL-20AC100 pinout, ATF1508ASVL-20AC100 application, or ATF1508ASVL-20AC100 equivalent, key selection criteria include JTAG ISP capability, 100-pin TQFP package compatibility, low-power standby (5 µA), PCI compliance, and programmable slew rate for EMI control.
Technical Context
The ATF1508ASVL-20AC100 implements a hierarchical architecture with eight logic chains supporting up to 40-product-term sum-of-products per chain. Its global bus delivers 100+ signals-including all I/O, dedicated inputs, and buried macrocell feedback-to switch matrices that allocate up to 40 signals per logic block.
Each of its 128 macrocells supports D/T/latch flip-flops, individual product-term clock enables, asynchronous reset/preset, and combinatorial output with registered feedback. Three global clock pins (GCLK1–3), ITD circuits on clocks/inputs/I/O, and fast registered input from product term enable deterministic timing for state machines and glue logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 128 macrocells - supports integration of multiple TTL/SSI functions in single device |
| Max Pin-to-Pin Delay | 20 ns - guarantees timing closure for 50 MHz system interfaces |
| Registered Clock Frequency | 77 MHz - enables high-speed synchronous logic in control and data-path applications |
| Supply Voltage Range | 3.0 V to 3.6 V - compatible with 3.3 V industrial and commercial power rails |
| Standby Current | 5 µA (L-version) - enables ultra-low-power hold mode for battery-backed systems |
| JTAG Compliance | IEEE Std. 1149.1-1990 & 1149.1a-1993 - ensures interoperability with standard boundary-scan test equipment |
| Package | 100-lead TQFP (14 × 14 mm, 0.5 mm pitch) - surface-mount compatible with automated assembly |
Pinout & Package
ATF1508ASVL-20AC100 is housed in a 100-lead Thin Quad Flat Package (TQFP) with 0.5 mm lead pitch and exposed thermal pad. The package supports reflow soldering and meets RoHS, Pb-free, and halide-free requirements.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 41 | I/O/PD1, I/O/PD2 | Power-down control inputs - assert high to enter sub-5 mA power-down mode; disable logic I/O during hold |
| 4, 15, 62, 73 | I/O/TDI, I/O/TMS, I/O/TCK, I/O/TDO | JTAG boundary-scan and ISP interface - enables in-circuit programming and IEEE 1149.1-compliant test without socket removal |
| 87, 89, 90 | I/O/GCLK3, INPUT/GCLR, INPUT/OE1 | Dedicated global control pins - provide synchronous clocking, asynchronous reset, and output enable with per-macrocell routing flexibility |
| 13, 20, 36, 41, 53, 68, 84, 93 | VCCIO | I/O power supply pins - decoupled to reduce switching noise on 3.3 V I/O banks |
| 11, 26, 38, 43, 59, 74, 86, 95 | GND | Ground reference pins - distributed across perimeter to minimize ground bounce in high-speed I/O |
Key Features
| Feature | Design Value |
|---|---|
| Fast In-System Programmability (ISP) | Enables field firmware updates via JTAG without device removal - reduces manufacturing and maintenance cost |
| Programmable Slew Rate | Per-output control allows slow switching on non-critical nets to suppress EMI, while preserving speed on timing-critical paths |
| Pin-keeper Circuits | Eliminates need for external pull-ups on unused I/Os - prevents floating inputs, reduces board area and DC leakage |
| Three Global Clock Pins | Supports independent clock domains for state machine partitioning, dual-edge sampling, or clock domain crossing |
| Security Fuse | Prevents unauthorized readback of configuration bitstream - protects IP in deployed industrial controllers |
| Input Transition Detection (ITD) | Hardware edge detection on global clocks, inputs, and I/O - enables efficient asynchronous event capture without software polling |
Applications
| Industrial PLC I/O Expansion | Legacy Bus Interface Bridging |
|---|---|
Use Scenario: Adding isolated digital I/O to a modular PLC rack with space-constrained PCB layout. IC Role / Device Role / Timing Role: Glue logic CPLD handling address decoding, strobe generation, and level translation between microcontroller and opto-isolated I/O modules. Use Value: 128 macrocells and 96 I/Os consolidate discrete logic; 5 µA standby extends battery backup duration during power loss. |
Use Scenario: Interfacing an ISA-bus industrial PC to modern SPI-based sensor subsystems. IC Role / Device Role / Timing Role: Protocol translator implementing ISA timing windows, handshaking, and register-mapped SPI command framing. Use Value: 20 ns pin-to-pin delay meets ISA tAS/tAH requirements; JTAG ISP allows post-deployment firmware patching of timing parameters. |
| FPGA Companion Logic | PCI Bus Glue Logic |
Use Scenario: Offloading configuration, reset sequencing, and status monitoring from a Xilinx Spartan FPGA in a medical imaging subsystem. IC Role / Device Role / Timing Role: Dedicated control CPLD managing FPGA configuration, power-on reset coordination, and watchdog supervision. Use Value: VCC power-up reset with large hysteresis ensures reliable FPGA initialization at 3.0 V; security fuse prevents tampering with boot logic. |
Use Scenario: Implementing arbitration, parity generation, and burst termination logic for a PCI add-in card operating at 33 MHz. IC Role / Device Role / Timing Role: PCI-compliant CPLD providing target-side address/data steering, DEVSEL# timing, and error signaling. Use Value: PCI compliance certified per specification; 77 MHz registered logic sustains full 33 MHz PCI clock with setup/hold margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCR3256XL-10TQ144C | 256 macrocells, 10 ns speed grade, 3.3 V only, no built-in power-down mode | Higher density but lacks 5 µA standby; requires external power management for low-energy hold states | Select when logic capacity exceeds 128 macrocells and JTAG ISP is sufficient without ultra-low-power hold |
| EPM7128SLC84-10 | 128 macrocells, 5 V tolerant I/O, 10 ns speed, non-JTAG ISP (requires UV erasure or parallel programming) | Legacy 5 V system compatibility but no IEEE 1149.1 boundary-scan or in-system reprogramming | Select only for brownfield 5 V designs where JTAG testability and field updates are not required |
Compared with ATF1508ASVL-20AC100, the XCR3256XL offers higher density but sacrifices ultra-low-power standby and integrated ITD; the EPM7128SLC84 provides 5 V tolerance but lacks JTAG ISP and modern power management-making ATF1508ASVL-20AC100 optimal for new 3.3 V industrial designs requiring field-upgradable, low-power glue logic.
Availability
ATF1508ASVL-20AC100 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, legacy bus interface bridging, and FPGA companion logic requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ATF1508ASVL-20AC100 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, including BSDL models, programming tools, and long-term supply commitments.
The ATF1508ASV(L) series was designed for high-reliability industrial and automotive-adjacent control applications requiring in-system programmability, deterministic timing, and robust power management-targeting replacement of discrete TTL and legacy PLDs.
FAQ
What is the maximum operating frequency of the ATF1508ASVL-20AC100 in registered mode?
The ATF1508ASVL-20AC100 supports registered logic operation up to 77 MHz, verified by its -20 speed grade and AC characteristic fCNT = 66 MHz minimum internal global clock frequency. This enables reliable use in 50 MHz system buses with timing margin. The ATF1508ASVL-20AC100 achieves this using three dedicated global clock pins and low-skew routing resources within its enhanced switch matrix.
Does the ATF1508ASVL-20AC100 support in-system programming (ISP) without removing it from the PCB?
Yes, the ATF1508ASVL-20AC100 supports full IEEE 1149.1-compliant JTAG in-system programming via its TDI, TMS, TCK, and TDO pins. Programming can be performed using Atmel's ISP hardware/software or third-party SVF-compatible ATE tools. The ATF1508ASVL-20AC100 remains functional during partial reconfiguration, and its security fuse prevents unauthorized readback after programming.
What power-saving features does the ATF1508ASVL-20AC100 offer beyond standard standby mode?
The ATF1508ASVL-20AC100 provides automatic 5 µA standby (L-version), pin-controlled power-down (<5 mA), per-macrocell reduced-power bits, programmable pin-keeper circuits, and slew-rate-controlled outputs. These features collectively reduce dynamic and static power in mixed-signal industrial systems. The ATF1508ASVL-20AC100 uses these to achieve sub-100 µA average current in intermittently active control logic.
Can the JTAG pins of the ATF1508ASVL-20AC100 be repurposed as general-purpose I/O?
Yes - the JTAG pins (TDI, TMS, TCK, TDO) of the ATF1508ASVL-20AC100 can be disabled in the design file to function as standard I/Os, freeing four additional logic resources. This requires disabling JTAG BST and ISP functionality. The ATF1508ASVL-20AC100 retains pull-up options on TMS and TDI when used as I/O, simplifying bus-hold implementation without external resistors.
Is the ATF1508ASVL-20AC100 qualified for industrial temperature operation?
Yes, the ATF1508ASVL-20AC100 is rated for -40°C to +85°C industrial temperature operation, with guaranteed DC and AC performance across this range. Its 3.0–3.6 V supply tolerance, 200 mA latch-up immunity, and 2000 V ESD protection meet industrial reliability standards. The ATF1508ASVL-20AC100 also supports VCC power-up reset with large hysteresis for robust startup under marginal voltage conditions.
ATF1508ASVL-20AC100 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x14)
ATF1508ASVL-20AC100 FAQ
1.How can I place an order for ATF1508ASVL-20AC100 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1508ASVL-20AC100 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-20AC100 reliable?
The price and inventory of ATF1508ASVL-20AC100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1508ASVL-20AC100 is usually 5 days.
3.What payment methods are accepted for ATF1508ASVL-20AC100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1508ASVL-20AC100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1508ASVL-20AC100?
ATF1508ASVL-20AC100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1508ASVL-20AC100 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-20AC100?
For technical support, including ATF1508ASVL-20AC100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1508ASVL-20AC100 requirements.
6.How does Aetrix verify that ATF1508ASVL-20AC100 is sourced from the original manufacturer or authorized distributors?
All ATF1508ASVL-20AC100 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-20AC100 meets industry standards.
7.What is the process for return or replacement of ATF1508ASVL-20AC100?
All ATF1508ASVL-20AC100 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1508ASVL-20AC100, 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-20AC100 part is unused and in its original packaging.
Return procedure for ATF1508ASVL-20AC100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1508ASVL-20AC100 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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