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Microchip Technology ATF750CL-15JU
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- Part No.:
- ATF750CL-15JU
- Manufacturer:
- Microchip Technology
- Package:
- 28-LCC (J-Lead)
- Datasheet:
-
ATF750CL-15JU.pdf
- Description:
- IC CPLD 10MC 15NS 28PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:536
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Product details
Overview
ATF750CL-15JU from Atmel is a low-power, electrically-erasable complex programmable logic device (CPLD) with 20 registered outputs, 171 product terms, and 20 sum terms. It features D- or T-type flip-flops, pin-keeper circuits, and 15 ns maximum pin-to-pin delay at 5V operation. Used in industrial control logic, legacy system upgrades, and power-sensitive embedded state machines.
For engineers reviewing the ATF750CL-15JU datasheet, ATF750CL-15JU pinout, ATF750CL-15JU application, or ATF750CL-15JU equivalent, this page delivers verified electrical specs, package mapping to 28-lead PLCC, confirmed I/O flexibility (10 bi-directional pins), and validated alternatives for CPLD migration paths.
Technical Context
The ATF750CL-15JU implements a high-density PLD architecture derived from the 22V10, extended with 42 array inputs, dual-clocking options (product-term or direct input pin), and independent asynchronous reset per flip-flop. Its logic array supports buried state machines via full internal feedback from all 20 flip-flops.
It uses Atmel's CMOS electrically-erasable technology with 100% factory testing, 20-year data retention, and 2000 erase/write cycles. The "L" variant achieves 1 mA standby current while maintaining 15 ns propagation delay - enabling battery-backed or thermally constrained industrial logic replacement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay (tPD) | 15 ns max - guarantees timing closure in 5V industrial control buses up to 41 MHz with external feedback. |
| Logic Density | 171 product terms / 20 sum terms - replaces >10 SSI/MSI TTL packages in glue logic consolidation. |
| Flip-flops | 20 individually configurable D- or T-type registers - enables mixed synchronous counters, JK emulations, and multi-clock domain state machines. |
| I/O Configuration | 12 dedicated inputs + 10 bi-directional I/Os - supports bus interface, address decoding, and peripheral control without external transceivers. |
| Power Consumption | 0.12–0.15 mA standby (industrial temp) - enables always-on logic in energy-harvested or battery-powered edge nodes. |
| Operating Range | -40°C to +85°C - qualified for industrial automation, motor drives, and telecom line cards without derating. |
| ESD Protection | 2000 V HBM - withstands handling and board-level ESD events in manufacturing and field service environments. |
Pinout & Package
ATF750CL-15JU is packaged in a 28-lead Plastic J-Leaded Chip Carrier (PLCC), compliant with JEDEC MS-018 AB. Pin 1 is marked by a corner notch; pins 1, 8, 15, and 22 may be left unconnected, though VCC on pin 1 and GND on pins 8/15/22 are recommended for optimal noise immunity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK/IN | Clock input or general logic input | Selectable as global clock source or standard input; enables pin-controlled flip-flop clocking without consuming product terms. |
| IN (pins 2–12, 23–24) | Dedicated input | 12 total dedicated inputs feed directly into logic array; no register feedback path required for combinatorial functions. |
| I/O (pins 13–22) | Bi-directional buffer | 10 pins support input, output, or bidirectional modes; each has individual OE product term and pin-keeper enable. |
| VCC (pin 1) | +5V supply | Primary power rail; decoupling near pin 1 improves high-speed switching stability and reduces ground bounce. |
| GND (pins 8, 15, 22) | Ground reference | Three GND pins provide low-inductance return paths for I/O and core logic; critical for signal integrity at 15 ns timing. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable pin-keeper circuits | Eliminates need for external pull-ups on unused I/Os, reducing BOM count and DC leakage in floating-bus systems. |
| Dual clocking architecture | Each flip-flop selects between product-term or direct pin clock - enables mixed-clock-domain logic (e.g., UART + PWM) in one device. |
| Asynchronous reset per flip-flop | Independent reset control allows selective initialization of subsystems (e.g., clear counter but retain configuration latch). |
| Synchronous preset line | Single global preset signal loads all 20 registers simultaneously - simplifies power-up sequencing and test-mode entry. |
| Preload capability | Forces any register state via I/O pin voltage during 10.5V preload cycle - enables deterministic boundary-scan-like testing without JTAG. |
Applications
| Industrial PLC I/O Expansion | Legacy System Glue Logic Replacement |
|---|---|
Use Scenario: Adding discrete sensor inputs and relay outputs to an aging PLC backplane without redesigning the main controller. IC Role / Device Role / Timing Role: Configurable logic interface translating parallel status bits to synchronized strobed handshakes. Use Value: Replaces 8× 74LS series chips with single ATF750CL-15JU, cutting PCB area by 70% and eliminating inter-chip skew. |
Use Scenario: Modernizing a 1990s medical instrument using obsolete PALs and GALs while retaining original firmware and connectors. IC Role / Device Role / Timing Role: Drop-in functional replacement for ATV750B/L with identical pinout and JEDEC compatibility. Use Value: Enables reprogramming in-system for bug fixes and feature updates - impossible with one-time-programmable predecessors. |
| Battery-Powered Data Logger | Motor Drive Control Sequencing |
Use Scenario: Managing wake/sleep transitions, SD card interface timing, and sensor sampling triggers in a solar-charged environmental monitor. IC Role / Device Role / Timing Role: Low-power state machine coordinating ADC reads, flash writes, and RF transmission windows. Use Value: 1 mA standby current extends battery life beyond 2 years; 15 ns delay ensures precise 100 kHz SPI timing margins. |
Use Scenario: Generating dead-time controlled gate signals for 3-phase IGBT inverters in HVAC compressors. IC Role / Device Role / Timing Role: Registered logic block implementing complementary PWM with programmable blanking intervals. Use Value: On-chip flip-flops eliminate external latch propagation delays, tightening dead-time control to ±5 ns accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATF750C-15JU | Standard-power variant: 125–135 mA ICC standby (industrial); same 15 ns speed grade and PLCC-28 package. | Preferred where thermal headroom exists and higher drive strength (24 mA IOL) is needed for long traces or heavy loads. | Select when system power budget allows >100× higher standby current and stronger output drive is required. |
| ATF750CL-10JU | Faster speed grade: 10 ns tPD, 55 MHz fMAXS; otherwise identical low-power architecture and pinout. | Suitable for upgraded timing-critical paths (e.g., faster serial interfaces) without changing PCB layout or firmware. | Choose for performance uplift within same power envelope - requires re-verification of setup/hold timing in target design. |
Compared with ATF750C-15JU, the ATF750CL-15JU cuts standby current by 99.9% while matching 15 ns timing; versus ATF750CL-10JU, it trades 5 ns delay margin for lower dynamic power and broader voltage tolerance in marginal supply conditions.
Availability
ATF750CL-15JU is available at Aetrix Electronics and suitable for industrial control systems, legacy equipment modernization, and battery-operated data acquisition requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ATF750CL-15JU 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 innovator known for non-volatile memory and programmable logic solutions, with deep expertise in industrial-grade CPLDs and flash-based microcontrollers.
The ATF750C(L) family was designed specifically to replace obsolete bipolar and UV-erasable PLDs in cost-sensitive, long-lifecycle industrial systems - emphasizing reprogrammability, pin compatibility, and robustness over consumer-grade speed metrics.
FAQ
What is the maximum operating frequency of the ATF750CL-15JU in a typical industrial design?
The ATF750CL-15JU achieves up to 41 MHz maximum operating frequency with external feedback (fMAX = 1/(tS + tCO)), based on its 15 ns propagation delay and 8 ns setup time. This is validated for -40°C to +85°C operation at 5V ±10%, making it suitable for real-time control loops in motor drives and sensor fusion nodes where deterministic timing is critical. The ATF750CL-15JU maintains this performance without thermal throttling under continuous industrial ambient conditions.
Does the ATF750CL-15JU support in-system programming (ISP)?
No, the ATF750CL-15JU does not support in-system programming. It requires a dedicated external programmer (e.g., Atmel-ICE or third-party JEDEC-compatible units) applying 10.5V to pin 8 during programming. Unlike flash-based CPLDs, its electrically-erasable EEPROM cells demand elevated voltage and controlled timing sequences - precluding ISP via standard I/O pins. The ATF750CL-15JU is programmed before soldering or via socketed programming stations.
How does the pin-keeper function work on the ATF750CL-15JU, and how is it enabled?
The pin-keeper circuit on the ATF750CL-15JU actively holds the last driven logic state (high or low) on any input or I/O pin when left floating, preventing undefined levels that cause shoot-through current or noise coupling. It is enabled during design compilation by selecting the "V750CPPK" device mnemonic in Atmel WinCUPL - which sets internal configuration bits. No external components or runtime commands are needed; the feature is hardware-configured at fuse-time.
Can the ATF750CL-15JU replace an ATV750BL in an existing design without changes?
Yes, the ATF750CL-15JU is backward compatible with the ATV750BL and can serve as a direct replacement in most cases. It shares identical pinout, JEDEC file structure (V750B mode), and logic architecture. However, users must recompile the design using Atmel WinCUPL with "ATF750C (V750B)" mode to disable T-type flip-flops and pin-clocking features - ensuring functional equivalence. The ATF750CL-15JU retains full compatibility while adding low-power operation.
What is the power-up reset behavior of the ATF750CL-15JU, and how does it affect system initialization?
The ATF750CL-15JU performs automatic power-up reset: all 20 flip-flops initialize to logic low when VCC crosses ~2.0–4.5 V (VRST), with reset duration of 600–1000 ns (tPR). This ensures deterministic state machine startup but requires monotonic VCC ramp-up and adherence to input setup times before clock activation. Failure to meet these conditions may result in metastability; the ATF750CL-15JU specification mandates stable clocks only after tPR expires.
ATF750CL-15JU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF750C(L)
- Package/Case:
- 28-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Verified
- Programmable Type:
- EE PLD
- Delay Time tpd(1) Max:
- 15 ns
- Voltage Supply - Internal:
- 4.5V ~ 5.5V
- Number of Logic Elements/Blocks:
- -
- Number of Macrocells:
- 10
- Number of Gates:
- -
- Number of I/O:
- 10
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-PLCC (11.51x11.51)
ATF750CL-15JU FAQ
1.How can I place an order for ATF750CL-15JU through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF750CL-15JU 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 ATF750CL-15JU reliable?
The price and inventory of ATF750CL-15JU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF750CL-15JU is usually 5 days.
3.What payment methods are accepted for ATF750CL-15JU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF750CL-15JU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF750CL-15JU?
ATF750CL-15JU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF750CL-15JU 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 ATF750CL-15JU?
For technical support, including ATF750CL-15JU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF750CL-15JU requirements.
6.How does Aetrix verify that ATF750CL-15JU is sourced from the original manufacturer or authorized distributors?
All ATF750CL-15JU 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 ATF750CL-15JU meets industry standards.
7.What is the process for return or replacement of ATF750CL-15JU?
All ATF750CL-15JU units undergo pre-shipment inspection (PSI). If there is an issue with ATF750CL-15JU, 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 ATF750CL-15JU part is unused and in its original packaging.
Return procedure for ATF750CL-15JU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF750CL-15JU Tags
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5M40ZE64C5N
Intel
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ATF1502ASV-15AU44
Microchip Technology
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5M80ZE64C5N
Intel
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5M80ZT100C5N
Intel
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ATF1502AS-10AU44
Microchip Technology
-
ATF1502AS-10JU44
Microchip Technology
-
5M80ZE64I5N
Intel
-
5M80ZT100I5N
Intel
-
LC4032V-75TN48C
Lattice Semiconductor Corporation
-
ATF1504ASV-15AU44
Microchip Technology
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ATF1504AS-10JU44
Microchip Technology
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5M160ZE64C5N
Intel
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