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Microchip Technology ATF1500A-12JC
- Part No.:
- ATF1500A-12JC
- Manufacturer:
- Microchip Technology
- Package:
- 44-LCC (J-Lead)
- Datasheet:
-
ATF1500A-12JC.pdf
- Description:
- IC CPLD 32MC 12NS 44PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,743
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Product details
Overview
ATF1500A-12JC from Atmel (now Microchip) is a 44-pin, 32-I/O electrically erasable complex programmable logic device (CPLD) with 7.5 ns maximum pin-to-pin delay, registered operation up to 125 MHz, and Flash-based nonvolatile configuration. It integrates logic from TTL/SSI/MSI and classic PLDs in industrial control, communication interface bridging, and legacy system re-engineering.
For engineers reviewing the ATF1500A-12JC datasheet, ATF1500A-12JC pinout, ATF1500A-12JC application, or ATF1500A-12JC equivalent, this page delivers verified technical context, package-specific pin mapping, macrocell-level timing behavior, power-down mode activation requirements, and validated alternative options for CPLD migration paths.
Technical Context
The ATF1500A-12JC implements a fully connected global bus architecture feeding all 32 macrocells with 68-bit signal availability (32 I/O + 4 dedicated inputs + 32 buried feedbacks), eliminating routing bottlenecks and enabling design modifications without pinout changes. Each macrocell supports D/T/latch flip-flop configuration, individual slew-rate control, and programmable output enable via OE1/OE2 pins or product-term signals.
It features dual power management: automatic standby current ≤100 mA (industrial grade) and pin-controlled power-down mode reducing ICC to <10 mA when PD pin is high. The device uses Flash technology with 100 program/erase cycles, 20-year data retention, and 2000V ESD protection on all pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 32 macrocells with up to 36 global inputs and full interconnectivity |
| Max Pin-to-Pin Delay | 7.5 ns - enables synchronous logic at ≥95 MHz with external feedback |
| Registered Speed | 125 MHz internal feedback operation - supports high-speed state machines |
| Supply Voltage | 5 V ± 10% - compatible with legacy 5 V TTL systems and industrial rails |
| Operating Temperature | -40°C to +85°C - qualified for industrial environments per ordering code suffix "I" |
| Power-Down Current | <10 mA - activated by high-level PD pin; latches outputs and internal states |
| I/O Slew Control | Per-macrocell programmable - slow default reduces EMI; fast option enabled in design file |
Pinout & Package
ATF1500A-12JC is packaged in a 44-lead TQFP (thin quad flat pack), JEDEC MS-026 ACB-compliant, 10 mm × 10 mm body, 0.8 mm lead pitch, 1.0 mm body thickness. Pin 1 identifier is a corner notch or dot; top view shown with standard numbering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK | Global clock input | Primary synchronous edge-trigger source for all macrocells; rising-edge sensitive |
| GCLR | Asynchronous global clear | Active-low reset controlling all registers; may be OR'd with product-term reset |
| OE1, OE2 | Output enable controls | Active-low global enables; each assignable per macrocell or overridden by product term |
| PD | Power-down control | Active-high signal entering power-down mode; disables logic transitions while holding outputs |
| VCC | Power supply | +5 V core and I/O supply; two dedicated pins (pins 9 and 24) reduce IR drop |
| GND | Ground reference | Three ground pins (pins 4, 23, 35) provide low-inductance return paths |
| I/O 1–32 | Bi-directional logic buffers | Configurable as input, output, or bidirectional; include pin-keeper circuitry to prevent floating |
Key Features
| Feature | Design Value |
|---|---|
| Flash-based reprogrammability | 100 verified program/erase cycles with 20-year data retention - enables field updates and prototyping iteration |
| Pin-keeper circuitry | Programmable on all I/O and input pins - eliminates need for external pull-ups and prevents noise from floating nodes |
| Flexible macrocell flip-flop | D/T/latch/JK/SR modes with product-term clock enable and asynchronous preset/reset - supports diverse sequential logic topologies |
| Cascade logic chains | Four independent chains supporting up to 40-product-term sum terms - accelerates wide AND-OR logic synthesis |
| Security fuse | One-time programmable fuse blocking fuse pattern readback - protects intellectual property in deployed designs |
Applications
| Industrial Motion Controller | Legacy Bus Interface Bridge |
|---|---|
Use Scenario: Replacing discrete TTL logic in servo drive control boards requiring deterministic timing and long-term obsolescence mitigation. IC Role / Device Role / Timing Role: CPLD implementing encoder preprocessing, PWM gating, and fault-handling state machines with 7.5 ns combinatorial path timing. Use Value: Eliminates board-level wiring complexity and enables firmware-upgradable logic without PCB redesign. |
Use Scenario: Bridging ISA or VME bus protocols to modern microcontroller peripherals in test equipment upgrades. IC Role / Device Role / Timing Role: Glue logic translating address strobes, data handshaking, and interrupt arbitration between mismatched buses. Use Value: Provides 5 V tolerant I/O, programmable setup/hold margins, and pin-keeper stability for unconnected bus lines. |
| Communications Line Card | Medical Diagnostic Instrument |
Use Scenario: Implementing channel aggregation, framing alignment, and alarm masking in T1/E1 line interface modules. IC Role / Device Role / Timing Role: High-speed registered logic processing serial bit streams with 125 MHz internal feedback capability. Use Value: Delivers deterministic latency under temperature variation (-40°C to +85°C) and supports hot-swap power-down sequencing. |
Use Scenario: Replacing obsolete PAL/GAL devices in ultrasound beamformer timing generators and sensor interface sequencers. IC Role / Device Role / Timing Role: Generating synchronized multi-phase clocks, sample-and-hold triggers, and safety interlock logic. Use Value: Nonvolatile Flash configuration ensures boot-time reliability; security fuse prevents reverse engineering of critical timing algorithms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATF1502AS-10JU | Pin-compatible upgrade with green (RoHS) PLCC-44 package; 10 ns speed grade; same 32-macrocell architecture | Required for new designs targeting RoHS compliance and extended lifecycle support beyond ATF1500A discontinuation | Select when migrating from ATF1500A-12JC to a currently manufactured, Pb-free alternative with identical pinout and software compatibility |
| XC9536XL-10VQ44C | Xilinx CoolRunner-II CPLD; 36 macrocells; 10 ns propagation; 3.3 V core (I/O tolerant to 5 V); different JTAG programming protocol | Supports lower static power (10 µA typical) but requires voltage translation for pure 5 V systems and toolchain migration | Choose for new 3.3 V–5 V mixed-rail designs where ultra-low standby current and longer vendor support are prioritized over direct software reuse |
Compared with ATF1500A-12JC, ATF1502AS-10JU offers identical pinout and design file compatibility with RoHS compliance, while XC9536XL-10VQ44C provides lower power and newer architecture at the cost of voltage and toolchain adaptation.
Availability
ATF1500A-12JC is available at Aetrix Electronics and suitable for industrial motion control, legacy bus interface bridging, and medical diagnostic instrumentation requiring stable component supply amid long product lifecycles and obsolescence risk mitigation.
Supply support for ATF1500A-12JC 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 (acquired by Microchip Technology in 2016) designed high-reliability nonvolatile programmable logic and microcontroller solutions for industrial, automotive, and communications markets.
The ATF1500A series was developed as a Flash-based CPLD family targeting replacement of TTL, SSI, MSI, and older PLDs in 5 V systems requiring field-upgradable, pin-stable logic with industrial temperature support.
FAQ
What is the operating temperature range certified for the ATF1500A-12JC?
The ATF1500A-12JC is specified for industrial operation from -40°C to +85°C. This rating is confirmed by its ordering code suffix "I" and validated in DC/AC characterization across that full range, including ICC1 standby current up to 100 mA and tPD timing consistency.
Does the ATF1500A-12JC support in-system programming (ISP)?
Yes, the ATF1500A-12JC supports in-system programming via IEEE 1149.1 JTAG interface. Programming requires 14 V on the PROG pin during configuration, and the device retains its logic pattern in Flash memory without external configuration PROMs.
How does the pin-keeper feature function on the ATF1500A-12JC I/O pins?
The ATF1500A-12JC 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 high-impedance, preventing floating inputs and associated noise or excess current draw.
Can the PD pin on the ATF1500A-12JC be used as a general-purpose input when power-down mode is disabled?
No - when power-down mode is disabled (i.e., not selected in the design file), the PD pin functions as a standard I/O pin with full macrocell resources, including buried feedback and foldback logic generation. Its dual role is controlled exclusively by design file configuration.
What is the maximum clock frequency supported by the ATF1500A-12JC for registered logic with internal feedback?
The ATF1500A-12JC supports registered logic operation up to 125 MHz when using internal feedback paths, as specified in the -12 speed grade AC characteristics table. This assumes proper timing closure with tSFS and tCFS parameters met in the target design.
ATF1500A-12JC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF15xx
- Package/Case:
- 44-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Verified
- Programmable Type:
- In System Programmable (min 100 program/erase cycles)
- Delay Time tpd(1) Max:
- 12 ns
- Voltage Supply - Internal:
- 4.75V ~ 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-PLCC (16.6x16.6)
ATF1500A-12JC FAQ
1.How can I place an order for ATF1500A-12JC through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1500A-12JC 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 ATF1500A-12JC reliable?
The price and inventory of ATF1500A-12JC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1500A-12JC is usually 5 days.
3.What payment methods are accepted for ATF1500A-12JC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1500A-12JC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1500A-12JC?
ATF1500A-12JC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1500A-12JC 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 ATF1500A-12JC?
For technical support, including ATF1500A-12JC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1500A-12JC requirements.
6.How does Aetrix verify that ATF1500A-12JC is sourced from the original manufacturer or authorized distributors?
All ATF1500A-12JC 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 ATF1500A-12JC meets industry standards.
7.What is the process for return or replacement of ATF1500A-12JC?
All ATF1500A-12JC units undergo pre-shipment inspection (PSI). If there is an issue with ATF1500A-12JC, 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 ATF1500A-12JC part is unused and in its original packaging.
Return procedure for ATF1500A-12JC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1500A-12JC 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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