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Microchip Technology ATF1500ABV-12AC
- Part No.:
- ATF1500ABV-12AC
- Manufacturer:
- Microchip Technology
- Package:
- 44-TQFP
- Datasheet:
-
ATF1500ABV-12AC.pdf
- Description:
- IC CPLD 32MC 12NS 44TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,308
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Product details
Overview
ATF1500ABV-12AC from Atmel is a high-density, electrically-erasable Complex Programmable Logic Device (CPLD) with 32 macrocells, 32 I/O pins, and 4 dedicated global control inputs. It delivers 12 ns maximum pin-to-pin delay, supports registered operation up to 90.9 MHz, and operates across 2.7V–5.5V supply. It is used in legacy industrial control logic consolidation, FPGA companion glue logic, and reconfigurable interface bridging.
For engineers reviewing the ATF1500ABV-12AC datasheet, ATF1500ABV-12AC pinout, ATF1500ABV-12AC application, or ATF1500ABV-12AC equivalent, key selection criteria include its 44-pin TQFP/PLCC package compatibility, EEPROM-based non-volatility, programmable slew rate per I/O, pin-controlled power-down mode (5 µA standby), and support for both product-term and global-clock register timing paths.
Technical Context
The ATF1500ABV-12AC implements a fully connected global input and feedback architecture where all 32 macrocells receive signals from a 68-bit global bus-including all I/Os, dedicated inputs, and buried feedback-enabling flexible logic placement without pinout changes. Its macrocell structure includes five product terms, OR/XOR/cascade logic, D/T/latch-configurable flip-flops, and individual output enable/slew control.
It features dual clocking modes: global CLK pin (rising-edge triggered) or product-term clock, with asynchronous reset (GCLR) and preset (AP) configurable per macrocell. Power management includes automatic low-power standby and optional pin-controlled power-down (PD), where internal states and outputs are latched while inputs are blocked except PD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 32 macrocells with 5 product terms each, supporting up to 40-term cascade logic chains |
| Max Pin-to-pin Delay | 12 ns - enables synchronous logic at ≤62.5 MHz with external feedback |
| Operating Voltage | 2.7V–5.5V - supports mixed-voltage system interfacing without level shifters |
| I/O Count | 32 bidirectional I/Os + 4 dedicated inputs (CLK, GCLR, OE1, OE2) - all usable as logic inputs or control signals |
| Standby Current | 5 µA typical - achieved via pin-controlled power-down mode, reducing idle power in battery-backed systems |
| Data Retention | 20 years - guaranteed EEPROM storage without refresh, critical for long-life embedded deployments |
| ESD Protection | 2000V HBM - ensures robustness during handling and board-level integration |
Pinout & Package
ATF1500ABV-12AC is available in two 44-pin packages: 44A (TQFP, 10 mm × 10 mm, 1.0 mm height) and 44J (PLCC, 16.5 mm × 16.5 mm). Both packages share identical pin functions and electrical characteristics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK | Global clock input | Rising-edge-triggered clock source for all macrocells; may be overridden by product-term clock |
| GCLR | Asynchronous reset input | Active-low global clear; configurable per macrocell as AR or combined with product-term |
| OE1, OE2 | Output enable inputs | Active-low enables for groups of I/Os; each macrocell can select OE1, OE2, or product-term enable |
| PD | Power-down control | Active-high entry into <5 µA standby; disables all inputs except PD and latches outputs/internal state |
| VCC / GND | Power supply terminals | Four VCC and three GND pins distributed for noise reduction and stable core voltage delivery |
| I/O (pins 1–32, 34–43) | Bidirectional logic buffers | Programmable as input, output, or bidirectional; each supports pin-keeper, slew control, and fast/slow transition |
Key Features
| Feature | Design Value |
|---|---|
| Fully connected global bus | 68-bit global signal pool (all I/Os + dedicated inputs + buried feedback) accessible to every macrocell - eliminates routing congestion and enables design iteration without PCB change |
| Programmable slew rate per I/O | Each output independently configured as fast or slow switching - reduces EMI on non-critical signals while preserving timing on high-speed paths |
| Pin-keeper circuitry | Configurable data-hold on all I/Os and inputs - prevents floating states, eliminates need for external pull-ups, and cuts DC leakage current |
| EEPROM-based reprogrammability | 10,000 program/erase cycles with 20-year data retention - supports field updates and long-term maintenance without hardware replacement |
| Security fuse | One-time programmable fuse blocking JEDEC readback and preload verification - protects intellectual property in production firmware |
Applications
| Industrial PLC I/O Expansion | Legacy Bus Interface Bridging |
|---|---|
Use Scenario: Adding isolated digital I/O channels to a DIN-rail-mounted PLC controller using discrete TTL logic and level translators. IC Role / Device Role / Timing Role: CPLD implementing glue logic for parallel address/data bus decoding, interrupt arbitration, and opto-isolator driver control. Use Value: Replaces 8–12 SSI/MSI ICs with single ATF1500ABV-12AC, reducing BOM count, board area, and interconnect skew while maintaining 12 ns timing integrity. | Use Scenario: Interfacing a modern microcontroller with an obsolete ISA or VMEbus peripheral requiring strict setup/hold timing and signal inversion. IC Role / Device Role / Timing Role: Timing-critical protocol translator with programmable delays, registered handshaking, and slew-controlled strobes. Use Value: Enables drop-in replacement of aging PAL/GAL devices with verified 12 ns path delay and 90.9 MHz register performance under 3.3V operation. |
| Test Equipment Signal Conditioning | Medical Device Safety Logic |
Use Scenario: Generating synchronized trigger pulses, pattern-matched waveform gating, and fault-safe enable sequencing in automated test equipment. IC Role / Device Role / Timing Role: Deterministic state machine executing real-time response to analog comparator outputs and encoder edges. Use Value: Leverages power-down mode (5 µA) between test cycles and register preload for deterministic startup - meeting Class I safety isolation requirements. | Use Scenario: Implementing redundant watchdog supervision, emergency stop chain validation, and dual-channel voting logic in Class II medical electronics. IC Role / Device Role / Timing Role: Fail-safe combinational and registered logic block with power-up reset guaranteeing low-state initialization. Use Value: Built-in monotonic power-up reset (TPR = 2–10 µs, VRST = 2.2–2.7 V) ensures known initial state without external RC networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATF1502ASV-15JC | Higher density (64 macrocells), 15 ns speed grade, PLCC-only, same voltage range | Supports larger logic functions but requires layout change due to different pinout and package | Select when logic resource demand exceeds 32 macrocells and PLCC footprint is acceptable |
| XCR3064XL-10VQ44C | Xilinx CoolRunner-II CPLD, 64 macrocells, 10 ns, 3.3V-only, VQFP44 package | Lower static current (10 µA), no 5V tolerance, lacks pin-keeper and PD pin functionality | Prefer for new 3.3V-only designs requiring lower power and higher density, accepting loss of 5V I/O and power-down control |
Compared with ATF1500ABV-12AC, ATF1502ASV-15JC offers more macrocells but sacrifices pin compatibility and adds 3 ns delay; XCR3064XL-10VQ44C provides superior density and lower quiescent current but removes 5V tolerance, pin-keeper, and dedicated power-down control-making ATF1500ABV-12AC uniquely suited for mixed-voltage, low-power, and legacy-replacement use cases.
Availability
ATF1500ABV-12AC is available at Aetrix Electronics and suitable for industrial control, test instrumentation, and medical device manufacturing requiring stable component supply, long-lifecycle support, and verified EEPROM-based reprogrammability.
Supply support for ATF1500ABV-12AC 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
Atmel Corporation (now part of Microchip Technology) is a semiconductor manufacturer specializing in microcontrollers, non-volatile memory, and programmable logic devices for industrial, automotive, and embedded applications.
The ATF1500ABV family was designed as a high-performance, EEPROM-based CPLD platform targeting logic consolidation, interface bridging, and reconfigurable glue logic in cost-sensitive, long-lifecycle systems.
FAQ
What is the maximum operating frequency of the ATF1500ABV-12AC when using internal feedback?
The ATF1500ABV-12AC achieves up to 76.9 MHz maximum frequency with internal feedback (1/(tSFS + tCFS)), as specified in the AC Characteristics table for product-term clock operation. This assumes VCC = 3.0 V and nominal conditions; derating applies at 2.7 V or elevated temperature. The ATF1500ABV-12AC's architecture allows this performance without external clock conditioning circuits.
Does the ATF1500ABV-12AC support 5V-tolerant I/Os?
Yes, the ATF1500ABV-12AC supports 5V-tolerant I/Os across its full 2.7V–5.5V VCC range. Input voltage limits extend to VCC + 0.75 V (DC) and 5.25 V for transient pulses (<20 ns), enabling direct interfacing with 5V TTL and CMOS logic without level shifters. This capability is confirmed in the Absolute Maximum Ratings and DC Characteristics sections of the official datasheet for ATF1500ABV-12AC.
How does the pin-keeper feature work on the ATF1500ABV-12AC?
The ATF1500ABV-12AC includes programmable pin-keeper circuits on all I/O and input pins. When enabled in the design file, these circuits hold the last driven logic state (high or low) after the pin becomes floating-preventing intermediate voltages that cause shoot-through current and noise. This eliminates external pull-up resistors and their associated DC power loss. The pin-keeper is disabled by default and must be explicitly activated per pin in the JEDEC programming file for ATF1500ABV-12AC.
Can the ATF1500ABV-12AC be reprogrammed in-system?
Yes, the ATF1500ABV-12AC supports in-system programming (ISP) via JTAG interface using standard IEEE 1149.1-compliant programmers. Its advanced EEPROM technology allows full reprogramming without removal from the PCB, with 10,000 guaranteed erase/program cycles and 20-year data retention. Reprogramming requires only VCC, GND, TCK, TMS, TDI, and TDO connections-no high-voltage VPP supply is needed for ATF1500ABV-12AC.
What happens to outputs during ATF1500ABV-12AC power-down mode?
During ATF1500ABV-12AC power-down mode (activated by driving PD high), all registered and combinatorial output states are latched and held, including High-Z conditions. Outputs remain electrically valid and stable, with no glitches or transitions. Input signals (except PD) are ignored, and internal logic is frozen. Upon exit (PD low), outputs resume normal operation within 1 µs (tDLOV), preserving signal integrity in power-gated subsystems.
ATF1500ABV-12AC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF15xx
- Package/Case:
- 44-TQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- In System Programmable (min 10K program/erase cycles)
- Delay Time tpd(1) Max:
- 12 ns
- Voltage Supply - Internal:
- 3V ~ 5.25V
- Number of Logic Elements/Blocks:
- -
- Number of Macrocells:
- 32
- Number of Gates:
- -
- Number of I/O:
- 32
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TQFP (10x10)
ATF1500ABV-12AC FAQ
1.How can I place an order for ATF1500ABV-12AC through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1500ABV-12AC 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 ATF1500ABV-12AC reliable?
The price and inventory of ATF1500ABV-12AC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1500ABV-12AC is usually 5 days.
3.What payment methods are accepted for ATF1500ABV-12AC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1500ABV-12AC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1500ABV-12AC?
ATF1500ABV-12AC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1500ABV-12AC 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 ATF1500ABV-12AC?
For technical support, including ATF1500ABV-12AC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1500ABV-12AC requirements.
6.How does Aetrix verify that ATF1500ABV-12AC is sourced from the original manufacturer or authorized distributors?
All ATF1500ABV-12AC 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 ATF1500ABV-12AC meets industry standards.
7.What is the process for return or replacement of ATF1500ABV-12AC?
All ATF1500ABV-12AC units undergo pre-shipment inspection (PSI). If there is an issue with ATF1500ABV-12AC, 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 ATF1500ABV-12AC part is unused and in its original packaging.
Return procedure for ATF1500ABV-12AC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1500ABV-12AC 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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