My Inquiry
My Account
Microchip Technology ATF1500A-15JI
- Part No.:
- ATF1500A-15JI
- Manufacturer:
- Microchip Technology
- Package:
- 44-LCC (J-Lead)
- Datasheet:
-
ATF1500A-15JI.pdf
- Description:
- IC CPLD 32MC 15NS 44PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,801
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ATF1500A-15JI from Atmel is a high-density, electrically-erasable Complex Programmable Logic Device (CPLD) with 32 macrocells, 32 I/O pins, and four dedicated input pins supporting clock, reset, and output enable functions. It delivers 7.5 ns maximum pin-to-pin delay, supports registered operation up to 125 MHz (internal feedback), and operates across -40°C to +85°C industrial temperature range in a 44-lead TQFP package. It integrates logic from TTL, SSI, MSI, and classic PLDs in industrial control and communications interface applications.
For engineers reviewing the ATF1500A-15JI datasheet, ATF1500A-15JI pinout, ATF1500A-15JI application, or ATF1500A-15JI equivalent, key selection criteria include its 7.5 ns propagation delay, programmable slew rate per I/O, pin-controlled power-down mode (<10 mA standby), pin-keeper circuitry for floating-input immunity, and compatibility with ATF1500/L design tools and JEDEC programming flows.
Technical Context
The ATF1500A-15JI implements a fully connected global bus architecture feeding all 32 macrocells with 68-bit signal availability (inputs, I/Os, buried feedback), enabling flexible logic placement without pinout changes during design iteration. 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 capability: global CLK pin or product-term-derived clock, with asynchronous reset (GCLR) and preset (AP) configurable per macrocell. The device supports automatic and pin-controlled power-down modes, and all inputs/I/Os include programmable pin-keeper circuits to prevent floating states and eliminate external pull-ups.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 32 macrocells with 36 total inputs and 32 I/Os - enables integration of multiple TTL/SSI/MSI functions in one device |
| Max Pin-to-Pin Delay | 7.5 ns - ensures timing-critical path compliance in high-speed digital interfaces |
| Max Registered Speed | 125 MHz (internal feedback) - supports fast state machines and synchronous control logic |
| Supply Voltage | 5 V ±10% - compatible with standard industrial 5 V rail systems |
| Operating Temp | -40°C to +85°C - qualified for industrial environments without derating |
| Power-Down Current | <10 mA - reduces system-level standby power when PD pin is asserted high |
| ESD Protection | 2000 V HBM - enhances robustness in handling and board assembly |
Pinout & Package
ATF1500A-15JI is housed in a 44-lead Thin Quad Flatpack (TQFP), 10 mm × 10 mm body, 0.8 mm lead pitch, JEDEC MS-026 ACB-compliant package. Pin 1 identifier is marked by a corner notch or dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK | Global clock input | Primary synchronous edge-trigger source for all macrocells; rising-edge sensitive |
| GCLR | Asynchronous register reset (active low) | Resets all macrocell flip-flops simultaneously; may be OR'd with product-term reset |
| OE1, OE2 | Output enable (active low) | Selectable per macrocell to control tri-state behavior of individual I/O buffers |
| PD | Power-down control (active high) | When enabled in design file, forces device into <10 mA standby; disables all inputs except PD |
| VCC | +5 V supply | Single-supply operation; two VCC pins (pins 9 and 24) reduce IR drop and noise coupling |
| GND | Ground reference | Three GND pins (pins 4, 23, 41) provide low-inductance return paths for I/O and core logic |
| I/O 1–32 | Bi-directional logic buffer | Programmable as input, combinatorial output, or registered output; each supports pin-keeper and slew control |
Key Features
| Feature | Design Value |
|---|---|
| Programmable slew rate per I/O | Reduces EMI and crosstalk on non-critical outputs while preserving speed on timing-sensitive paths |
| Pin-keeper circuitry | Eliminates need for external pull-up/down resistors on unused or intermittently driven I/Os |
| Flexible macrocell configuration | Supports D/T/latch flip-flops, buried feedback, and XOR-based arithmetic/comparison logic |
| Global + regional bus architecture | Enables full signal routing visibility to all macrocells and efficient high-fan-in sum-term generation |
| Security fuse | Prevents unauthorized readback of JEDEC fuse pattern while retaining user signature access |
Applications
| Industrial Motion Control | Legacy Bus Interface Adapter |
|---|---|
Use Scenario: Real-time coordination of stepper/servo drives using parallel control signals and encoder feedback. IC Role / Device Role / Timing Role: CPLD implementing synchronized enable, direction, step pulse generation, and quadrature decoding logic. Use Value: 7.5 ns pin-to-pin delay ensures deterministic timing between motion commands and hardware response under 125 MHz clock domain. | Use Scenario: Bridging ISA or VME bus peripherals to modern microcontroller-based controllers. IC Role / Device Role / Timing Role: Glue logic translating address strobes, data handshaking, and bus arbitration signals across voltage/timing domains. Use Value: Fully connected global bus allows re-mapping of legacy bus signals without PCB redesign when firmware logic changes. |
| Test Equipment Signal Generator | Medical Diagnostic Data Acquisition |
Use Scenario: Generating precise multi-channel digital stimulus patterns for IC functional testing. IC Role / Device Role / Timing Role: High-speed pattern sequencer with programmable delays, trigger synchronization, and output slew control. Use Value: Individual slew rate per I/O minimizes ground bounce and jitter on calibrated digital outputs used for DUT stimulation. | Use Scenario: Interfacing analog front-end ADCs and sensor arrays to ARM-based processing modules in portable diagnostics. IC Role / Device Role / Timing Role: Timing controller managing sample clocks, channel multiplexing, and data framing with deterministic latency. Use Value: Power-down mode (<10 mA) extends battery life during idle periods while preserving register state for rapid wake-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATF1502AS-10JI | Pin-compatible upgrade with higher density (64 macrocells), same 44-J/TQFP footprint, 10 ns speed grade | Supports larger logic designs without layout change; requires updated JEDEC programming flow | Select when expanding logic capacity is required and 10 ns timing suffices |
| XCR3064XL-10VQ44I | 64-macrocell CoolRunner-II CPLD, 3.3 V core, 10 ns tPD, VQFP44 package | Lower static power and 3.3 V I/O compatibility; not 5 V tolerant without level-shifting | Choose for new 3.3 V designs prioritizing power efficiency over 5 V legacy compatibility |
Compared with ATF1500A-15JI, ATF1502AS-10JI offers scalable logic density within identical packaging and toolchain continuity, while XCR3064XL-10VQ44I shifts to lower-voltage operation and reduced quiescent current-making it suitable for battery-powered upgrades but requiring voltage translation in 5 V systems.
Availability
ATF1500A-15JI is available at Aetrix Electronics and suitable for industrial motion control, legacy bus interface adapters, test equipment signal generators, and medical diagnostic data acquisition systems requiring stable component supply across extended lifecycle demands.
Supply support for ATF1500A-15JI 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) designed high-reliability non-volatile programmable logic and microcontroller solutions for industrial, automotive, and communications markets.
The ATF1500A series was engineered as a Flash-based CPLD family targeting replacement of TTL/SSI/MSI logic and legacy PLDs in cost-sensitive, medium-complexity control applications with field-upgradable functionality.
FAQ
What is the operating temperature range for the ATF1500A-15JI?
The ATF1500A-15JI is rated for industrial temperature operation from -40°C to +85°C. This specification is validated per the device's DC and AC operating conditions table, with VCC tolerance relaxed to ±10% in this range. The ATF1500A-15JI maintains full functionality-including 7.5 ns pin-to-pin delay and 125 MHz registered performance-across this entire span without derating.
Does the ATF1500A-15JI support in-system programming?
Yes, the ATF1500A-15JI supports in-system programming via JTAG (IEEE 1149.1) boundary-scan interface. It uses standard JEDEC file formats and is compatible with Atmel's ISP software and third-party programmers that support Flash-based CPLDs. Programming does not require socket removal, and the device retains configuration after power cycling due to its non-volatile Flash memory.
How does the pin-keeper feature function on the ATF1500A-15JI?
The ATF1500A-15JI includes programmable pin-keeper circuits on all input and I/O pins. When enabled in the design file, these circuits latch the last driven logic state (high or low) if the pin becomes floating, preventing intermediate voltages that cause shoot-through current and noise. This eliminates external pull-up/down resistors and associated DC power loss-critical for low-power industrial systems where unused I/Os are common.
Can the PD pin on the ATF1500A-15JI be used as a general-purpose I/O?
No-the PD pin on the ATF1500A-15JI cannot serve as a general-purpose I/O when the pin-controlled power-down feature is enabled in the design source file. In that mode, PD is dedicated to asserting high to enter sub-10 mA standby. However, even when PD is active, the macrocell associated with the PD pin remains usable for generating buried feedback and cascade logic terms-only its input/output buffer is disabled.
What is the maximum clock frequency supported by the ATF1500A-15JI in registered mode?
The ATF1500A-15JI supports registered operation up to 125 MHz when using internal feedback paths, as confirmed by the fMAXA parameter in the AC characteristics table. This assumes optimal placement and routing; actual system-level clock frequency depends on board layout, load capacitance, and signal integrity. For external feedback configurations, the limit drops to 52.6 MHz (1/(tSIA + tCOA) at -15 speed grade).
ATF1500A-15JI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF15xx
- Package/Case:
- 44-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- In System Programmable (min 100 program/erase cycles)
- Delay Time tpd(1) Max:
- 15 ns
- Voltage Supply - Internal:
- 4.5V ~ 5.5V
- Number of Logic Elements/Blocks:
- -
- Number of Macrocells:
- 32
- Number of Gates:
- -
- Number of I/O:
- 32
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-PLCC (16.6x16.6)
ATF1500A-15JI FAQ
1.How can I place an order for ATF1500A-15JI through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1500A-15JI 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-15JI reliable?
The price and inventory of ATF1500A-15JI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1500A-15JI is usually 5 days.
3.What payment methods are accepted for ATF1500A-15JI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1500A-15JI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1500A-15JI?
ATF1500A-15JI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1500A-15JI 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-15JI?
For technical support, including ATF1500A-15JI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1500A-15JI requirements.
6.How does Aetrix verify that ATF1500A-15JI is sourced from the original manufacturer or authorized distributors?
All ATF1500A-15JI 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-15JI meets industry standards.
7.What is the process for return or replacement of ATF1500A-15JI?
All ATF1500A-15JI units undergo pre-shipment inspection (PSI). If there is an issue with ATF1500A-15JI, 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-15JI part is unused and in its original packaging.
Return procedure for ATF1500A-15JI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1500A-15JI 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
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
