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Microchip Technology ATF1500ABV-15AC
- Part No.:
- ATF1500ABV-15AC
- Manufacturer:
- Microchip Technology
- Package:
- 44-TQFP
- Datasheet:
-
ATF1500ABV-15AC.pdf
- Description:
- IC CPLD 32MC 15NS 44TQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ATF1500ABV-15AC from Atmel (now Microchip) is a high-density, electrically-erasable Complex Programmable Logic Device (CPLD) with 32 macrocells, 32 I/O pins, and 4 dedicated control inputs. It operates from 2.7V to 5.5V, delivers 12 ns maximum pin-to-pin delay, supports registered logic up to 52.6 MHz (fMAXS), and integrates fully connected global/feedback logic for TTL/SSI/MSI replacement in digital control systems.
For engineers reviewing the ATF1500ABV-15AC datasheet, ATF1500ABV-15AC pinout, ATF1500ABV-15AC application, or ATF1500ABV-15AC equivalent, key selection criteria include its 44-pin TQFP/PLCC packaging, programmable slew rate per I/O, pin-controlled 5 µA standby mode, and EEPROM-based reprogrammability with 10,000 erase cycles - critical for industrial control, legacy interface bridging, and FPGA-adjacent glue logic.
Technical Context
The ATF1500ABV-15AC implements a 100% connected global input and feedback architecture: all 32 macrocells receive signals from a 68-bit global bus containing all I/O, dedicated inputs, and buried feedbacks. Each macrocell has five product terms routed via a programmable PTMUX to OR/XOR/cascade logic, enabling sum-of-products up to 40 terms across four regional chains.
Its flexible macrocell supports D/T/latch/JK/SR flip-flops with individually selectable clock sources (global CLK or product term), asynchronous reset/preset (GCLR or product term), and output enable sourced from OE1/OE2 pins or per-macrocell product terms. Pin-keeper circuits prevent floating inputs without external pull-ups, and power-down mode latches internal states while reducing ICC to ≤2 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7V–5.5V: Supports mixed-voltage system integration and direct interfacing with 3.3V/5V logic families. |
| tPD Max | 15 ns: Defines worst-case combinatorial path delay from input/I/O to non-registered output at VCC = 3.0V. |
| fMAXS | 52.6 MHz: Maximum sequential operation frequency using external feedback and global CLK pin. |
| I/O Count | 32 bidirectional pins + 4 dedicated inputs: Enables full logic consolidation of multi-chip TTL/SSI functions into single package. |
| Macrocells | 32 logic macrocells: Each provides configurable flip-flop, XOR/OR logic, cascade capability, and buried feedback to global bus. |
| EEPROM Endurance | 10,000 program/erase cycles: Ensures field-reprogrammability over extended product lifecycle without degradation. |
| Data Retention | 20 years: Guarantees nonvolatile configuration integrity under commercial temperature range (0°C to 70°C). |
Pinout & Package
ATF1500ABV-15AC is available in 44-lead TQFP (44A) and PLCC (44J) packages. Both are RoHS-compliant, surface-mount packages with 0.8 mm lead pitch (TQFP) and 1.27 mm J-lead pitch (PLCC). The device uses standard 44-pin numbering with GND, VCC, CLK, GCLR, OE1, OE2, PD, and 32 I/O pins distributed across all four sides.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK | Global clock input | Primary synchronous timing reference for all registered macrocells; rising-edge triggered. |
| GCLR | Asynchronous global clear | Active-low reset signal applied to all macrocell flip-flops; overrides clock and data inputs. |
| OE1, OE2 | Output enable controls | Active-low enables/disables groups of I/O buffers; selectable per macrocell via design file. |
| PD | Power-down control | Active-high entry into low-power mode (≤2 mA); disables all logic transitions while latching outputs and registers. |
| I/O | Bi-directional logic buffer | Configurable as input, output, or bidirectional port; includes programmable slew rate and pin-keeper circuit. |
| VCC | Power supply | Single 2.7V–5.5V supply powering core logic and I/O; requires local decoupling per datasheet layout guidelines. |
| GND | Ground reference | Three dedicated ground pins ensure stable return path and reduce switching noise in high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| Fully connected global bus | 68-bit bus (all I/O + dedicated inputs + buried feedbacks) routed to every macrocell - eliminates routing congestion and enables pinout stability across design iterations. |
| Programmable slew rate per I/O | Per-pin selection between fast/slow edge rates reduces EMI and crosstalk on non-critical signals without sacrificing timing on critical paths. |
| Pin-keeper circuitry | Active-high data retention on unused inputs/I/Os prevents floating states, eliminates need for external pull-up resistors, and cuts DC leakage current. |
| Power-down mode | Hardware-controlled ≤2 mA standby state with full register/output state retention - ideal for battery-backed or intermittent-operation systems. |
| Security fuse | One-time programmable fuse blocks JEDEC file readback and preload verification, protecting proprietary logic configurations from reverse engineering. |
Applications
| Industrial Motor Control Interface | Legacy System Bus Bridging |
|---|---|
|
Use Scenario: Interfacing microcontroller GPIOs to stepper motor driver enable/step/direction lines while managing timing-critical PWM synchronization and fault monitoring. IC Role / Device Role / Timing Role: Glue logic CPLD providing synchronized register-to-register handshaking, level translation, and real-time status aggregation across multiple drivers. Use Value: Replaces 6–8 discrete TTL chips with deterministic 15 ns propagation delay and zero PCB layout changes when updating motor sequencing logic. |
Use Scenario: Adapting ISA or VMEbus peripherals to modern ARM-based controllers by translating address strobes, data direction, and interrupt arbitration signals. IC Role / Device Role / Timing Role: Protocol-aware logic engine implementing bus cycle timing, wait-state insertion, and burst-mode handshake protocols. Use Value: Eliminates custom ASIC development; leverages 32 I/Os and 4 dedicated control pins to replicate legacy timing diagrams with <12 ns skew tolerance. |
| Automated Test Equipment (ATE) Pattern Generator | Digital Power Supply Sequencing |
|
Use Scenario: Generating precise multi-channel digital stimulus waveforms (e.g., SPI, I²C, parallel bus) with sub-20 ns edge alignment for IC validation. IC Role / Device Role / Timing Role: Deterministic pattern sequencer using registered macrocells clocked at 52.6 MHz to drive synchronized output banks. Use Value: Achieves repeatable waveform generation without FPGA toolchain overhead; EEPROM storage retains patterns across power cycles. |
Use Scenario: Controlling startup/shutdown sequencing of multi-rail DC-DC converters (1.2V, 2.5V, 3.3V, 5V) with voltage-monitoring feedback and fault lockout. IC Role / Device Role / Timing Role: State-machine controller implementing timed delays, interlock conditions, and reset coordination across power domains. Use Value: Integrates power-good monitoring, soft-start timers, and fault recovery logic into single 44-pin device - reducing BOM count and improving reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCR3064XL-10VQ44C | 64 macrocells, 3.3V-only supply, 10 ns tPD, Flash-based nonvolatility | Higher density but lacks 5V tolerance and pin-keeper circuits; requires level-shifting for mixed-voltage designs | Choose for higher logic capacity where 3.3V-only operation and faster speed are prioritized over 5V compatibility. |
| LC4032ZE-7TN48C | 32 macrocells, 1.8V core/3.3V I/O, 7.5 ns tPD, instant-on SRAM+Flash architecture | No EEPROM endurance limit, but requires external configuration memory; no built-in power-down pin control | Prefer for ultra-low-power portable systems needing instant-on behavior and deeper sleep modes beyond ATF1500ABV-15AC's 2 mA standby. |
Compared with XCR3064XL-10VQ44C and LC4032ZE-7TN48C, the ATF1500ABV-15AC uniquely combines 5V-tolerant I/O, EEPROM reprogrammability, hardware power-down control, and pin-keeper circuits - making it optimal for industrial retrofits and mixed-voltage legacy interface consolidation where field updates and robustness outweigh raw speed or density.
Availability
ATF1500ABV-15AC is available at Aetrix Electronics and suitable for industrial motor control interfaces, legacy bus bridging, automated test equipment pattern generation, digital power supply sequencing, and embedded system glue logic requiring stable component supply, long-term lifecycle support, and proven field reliability.
Supply support for ATF1500ABV-15AC 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 company specializing in microcontrollers, nonvolatile memory, and programmable logic devices for industrial, automotive, and consumer applications.
The ATF1500ABV family was designed as high-density, EEPROM-based CPLDs targeting cost-sensitive, high-reliability replacements for TTL/SSI/MSI logic in industrial control, instrumentation, and communications infrastructure.
FAQ
What is the maximum operating frequency of the ATF1500ABV-15AC?
The ATF1500ABV-15AC supports registered logic operation up to 52.6 MHz when using external feedback and the global CLK pin (fMAXS). This value is measured at VCC = 3.0V and reflects the device's speed grade - distinct from the -12AC variant's 62.5 MHz rating. The 15 ns tPD specification directly constrains combinatorial path timing in the ATF1500ABV-15AC design.
Does the ATF1500ABV-15AC support 5V logic levels?
Yes, the ATF1500ABV-15AC operates across a 2.7V to 5.5V VCC range and tolerates 5V inputs regardless of supply voltage. Its I/O buffers are 5V-tolerant, enabling direct connection to legacy 5V TTL/CMOS buses without level shifters - a key differentiator versus newer 3.3V-only CPLDs like the XCR3064XL series.
How does the power-down mode function in the ATF1500ABV-15AC?
In power-down mode, asserted high on the PD pin reduces supply current to ≤2 mA while latching all register states and output levels. Inputs (except PD) are ignored, and outputs retain their last driven or Hi-Z state. The ATF1500ABV-15AC exits power-down synchronously upon PD going low, with tDLOV ≤1 µs delay to valid output - critical for low-duty-cycle sensor interface applications.
Can the ATF1500ABV-15AC replace older PAL/GAL devices?
Yes, the ATF1500ABV-15AC is widely used to consolidate multiple PAL/GAL devices due to its 32 macrocells, 100% connected architecture, and pin-compatible migration paths. Its 44-pin TQFP/PLCC footprint matches many legacy PLCC-based GAL22V10 and PALCE22V10 designs, and its JEDEC file programming supports standard PAL compilers with minimal netlist adaptation.
What packaging options are available for the ATF1500ABV-15AC?
The ATF1500ABV-15AC is offered in two RoHS-compliant packages: 44-lead TQFP (44A, 10 mm × 10 mm, 0.8 mm pitch) and 44-lead PLCC (44J, 16.5 mm × 16.5 mm, 1.27 mm J-leads). Both packages support commercial temperature range (0°C to 70°C) operation and share identical pinouts and electrical characteristics - allowing board-level interchangeability.
ATF1500ABV-15AC 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:
- 15 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-15AC FAQ
1.How can I place an order for ATF1500ABV-15AC through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1500ABV-15AC 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-15AC reliable?
The price and inventory of ATF1500ABV-15AC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1500ABV-15AC is usually 5 days.
3.What payment methods are accepted for ATF1500ABV-15AC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1500ABV-15AC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1500ABV-15AC?
ATF1500ABV-15AC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1500ABV-15AC 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-15AC?
For technical support, including ATF1500ABV-15AC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1500ABV-15AC requirements.
6.How does Aetrix verify that ATF1500ABV-15AC is sourced from the original manufacturer or authorized distributors?
All ATF1500ABV-15AC 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-15AC meets industry standards.
7.What is the process for return or replacement of ATF1500ABV-15AC?
All ATF1500ABV-15AC units undergo pre-shipment inspection (PSI). If there is an issue with ATF1500ABV-15AC, 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-15AC part is unused and in its original packaging.
Return procedure for ATF1500ABV-15AC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1500ABV-15AC 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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