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Microchip Technology ATF750LVC-15PU
- Part No.:
- ATF750LVC-15PU
- Manufacturer:
- Microchip Technology
- Package:
- 24-DIP (0.300", 7.62mm)
- Datasheet:
-
ATF750LVC-15PU.pdf
- Description:
- IC CPLD 10MC 15NS 24DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,936
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Product details
Overview
ATF750LVC-15PU from Microchip Technology (formerly Atmel) is a high-performance, electrically-erasable complex programmable logic device (CPLD) in a 24-pin PDIP package. It implements up to 20 D- or T-type flip-flops, 42 array inputs, and 20 sum terms with 171 total product terms. It supports 3.0V–5.5V operation, delivers ≤15 ns pin-to-pin delay at 3V, and enables buried state machines in industrial control logic.
For engineers reviewing the ATF750LVC-15PU datasheet, ATF750LVC-15PU pinout, ATF750LVC-15PU application, or ATF750LVC-15PU equivalent, key selection criteria include its 20 reprogrammable registers, pin-keeper circuit support, dual clocking modes (product-term and input-pin), 20-year data retention, and compatibility with ATV750B software toolchain.
Technical Context
The ATF750LVC-15PU uses a unified PLD architecture with a single large combinatorial logic array feeding 20 independently configurable flip-flops. Each register supports individual asynchronous reset, synchronous preset, and selectable D/T functionality - enabling JK and SR behavior without external gates.
It features two distinct clocking paths: product-term-derived clocks (with dedicated reset/product-term enable per flip-flop) and direct input-pin clocking (via CLK/IN on Pin 1). Output logic includes per-I/O enable product terms and full internal feedback routing, supporting true bi-directional I/O with no external bus-hold components required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 20 flip-flops + 20 sum terms + 171 product terms - replaces multiple 22V10 devices in one 24-pin footprint. |
| Propagation Delay | ≤15 ns (3V), ≤10 ns (5V) pin-to-pin - ensures deterministic timing for real-time control loops. |
| Supply Voltage | 3.0V–5.5V - interoperable with both 3.3V and 5V legacy systems without level-shifting. |
| Operating Temperature | −40°C to +85°C - qualified for industrial environments including motor drives and PLC modules. |
| Data Retention | 20 years - guarantees nonvolatile configuration persistence across equipment lifecycles. |
| ESD Protection | 2000V HBM - reduces risk of field failure during handling and board assembly. |
| Erase/Write Cycles | 1000 cycles - supports iterative firmware updates and in-system reconfiguration during development. |
Pinout & Package
ATF750LVC-15PU is packaged in a 24-lead, 0.300″ wide plastic dual-inline package (PDIP), designated 24P3 per Microchip's ordering documentation. This through-hole package supports manual prototyping and legacy wave-solder assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK/IN (Pin 1) | Dedicated clock input or general logic input | Enables direct pin-based clocking for highest-speed register updates; also serves as standard input when unused as clock. |
| IN (Pins 2–11, 13–14, 16–17) | Primary logic inputs | 12 dedicated input pins feed the logic array; all support pin-keeper circuits to prevent floating-induced noise and power waste. |
| I/O (Pins 12, 15, 18–24) | Bi-directional I/O buffers | 10 pins configurable as inputs, outputs, or bidirectional ports; each has independent output-enable product term and internal feedback path. |
| VCC (Pins 19, 20) | Power supply | Dual VCC pins reduce supply impedance and improve noise immunity in high-speed switching applications. |
| GND (Pins 10, 11, 21, 22) | Ground reference | Four GND pins provide low-inductance return paths for logic and I/O switching currents. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable pin-keeper circuits | Eliminates need for external pull-up resistors on unused inputs/I/Os - reduces BOM count and static power by >100 µA per pin. |
| Selectable D- or T-type flip-flops | Each of 20 registers individually configured - enables compact JK/SR implementations and efficient state encoding in finite-state machines. |
| Dual clock source per flip-flop | Choice between product-term clock (flexible edge control) or CLK/IN pin (minimal latency) - allows mixed-clock-domain logic in single device. |
| Full internal feedback routing | All 20 flip-flop outputs feed back into logic array - supports fully buried combinatorial logic with zero external routing. |
| Per-I/O output-enable product terms | Independent OE control per I/O pin - enables true tristate bus arbitration without external glue logic. |
Applications
| Industrial PLC I/O Expansion | Legacy System Bus Interface |
|---|---|
Use Scenario: Adding isolated digital I/O channels to a DIN-rail mounted programmable logic controller using existing 24V DC and 5V logic rails. IC Role / Device Role / Timing Role: ATF750LVC-15PU acts as a reconfigurable I/O expander with synchronized sampling, debouncing, and status reporting via parallel bus. Use Value: Replaces discrete 74-series latches and decoders while supporting runtime reconfiguration for different machine-tool configurations. | Use Scenario: Bridging a Z80 CPU data bus to modern peripheral ICs requiring 3.3V signaling and precise timing alignment. IC Role / Device Role / Timing Role: ATF750LVC-15PU functions as a voltage-tolerant, timing-compliant bus translator with programmable setup/hold insertion and clock domain crossing. Use Value: Enables drop-in integration of new peripherals without redesigning motherboard timing or adding level-shifters. |
| Motor Control State Machine | Test Equipment Pattern Generator |
Use Scenario: Implementing commutation sequencing and fault-handling logic for a three-phase BLDC motor drive operating at 20 kHz PWM frequency. IC Role / Device Role / Timing Role: ATF750LVC-15PU executes deterministic, cycle-accurate state transitions synchronized to hardware PWM triggers and current-sense interrupts. Use Value: Achieves <100 ns jitter in gate-driver enable timing - critical for minimizing shoot-through and EMI in inverter stages. | Use Scenario: Generating multi-channel digital stimulus patterns for validating ASIC I/O timing margins under varying voltage and temperature conditions. IC Role / Device Role / Timing Role: ATF750LVC-15PU serves as a deterministic pattern sequencer with sub-15 ns resolution, driven by an external 50 MHz reference clock. Use Value: Delivers repeatable, glitch-free test vectors without microcontroller overhead - accelerating validation of high-speed SerDes interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATF750C-15PU | No pin-keeper circuits enabled by default; requires external pull-ups on unused I/Os. | Suitable only where board layout accommodates discrete termination and power budget permits extra leakage. | Select ATF750C-15PU only if pin-keeper functionality is unnecessary and cost is primary constraint. |
| XCR3064XL-10VQ44I | 64 macrocells, 44-pin VQFP, 3.3V-only supply, higher density but larger footprint and no 5V tolerance. | Better for new designs needing >20 registers; unsuitable for retrofitting into 24-pin sockets or 5V systems. | Choose XCR3064XL-10VQ44I for greenfield designs requiring more logic resources and accepting surface-mount constraints. |
Compared with ATF750C-15PU, the ATF750LVC-15PU adds pin-keeper circuits and wider voltage range - simplifying design-in for industrial retrofits. Against XCR3064XL-10VQ44I, it trades density and speed for socket compatibility and 5V interoperability - making it optimal for legacy system upgrades.
Availability
ATF750LVC-15PU is available at Aetrix Electronics and suitable for industrial automation, legacy system modernization, and motor control applications requiring stable component supply, long-lifecycle support, and through-hole assembly compatibility.
Supply support for ATF750LVC-15PU 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
Microchip Technology acquired Atmel in 2016 and maintains full support for legacy Atmel PLD products including the ATF750 family.
The ATF750LVC series was designed for high-reliability, reprogrammable logic replacement in industrial control, instrumentation, and automotive-adjacent systems - emphasizing ease of migration from 22V10 and robustness across temperature and voltage extremes.
FAQ
What is the maximum operating frequency of the ATF750LVC-15PU at 3.3V supply?
The ATF750LVC-15PU achieves up to 83 MHz maximum frequency with external feedback at 3.3V (fMAXS = 1/(tSS + tCOS)), and 100 MHz with internal feedback. These values are measured under specified AC conditions with 1.5V timing reference and confirmed in the official Microchip datasheet revision F (November 2008). The ATF750LVC-15PU maintains deterministic timing across its full industrial temperature range.
Does the ATF750LVC-15PU support in-system programming (ISP)?
No, the ATF750LVC-15PU does not support in-system programming. It requires a dedicated PLD programmer (e.g., Microchip's ATDH10xx series) and operates in a parallel programming mode using VPP = 12.5V. Programming occurs before soldering, and the device retains configuration indefinitely (20-year data retention). The ATF750LVC-15PU is reprogrammable up to 1000 times but must be removed from the board for reprogramming.
How many I/O pins on the ATF750LVC-15PU can function as true bi-directional ports?
Ten I/O pins (Pins 12, 15, 18–24) on the ATF750LVC-15PU support true bi-directional operation - each with independent output-enable control, dedicated input path, and internal feedback capability. All ten can be configured as inputs, outputs, or bidirectional ports in the same design, enabling flexible bus interface and peripheral control without external transceivers.
Is the ATF750LVC-15PU RoHS compliant?
Yes, the ATF750LVC-15PU is RoHS compliant and offered in Pb/Halide-free green packaging per Microchip's ordering information. The "PU" suffix denotes the 24P3 PDIP package with RoHS-compliant finish. This compliance is verified in the official datasheet section 23.1 and applies to all units shipped after November 2008 (revision F).
Can the ATF750LVC-15PU replace a 22V10 in an existing design without changes?
Yes - the ATF750LVC-15PU is architecturally compatible with the 22V10 and supports identical pinout, JEDEC file format, and software tools (e.g., WinCUPL, Synario). It is a functional superset: same 24-pin DIP footprint, same 10 I/O + 12 input configuration, and backward-compatible fuse map. The ATF750LVC-15PU adds enhanced features (pin-keepers, dual clocking, 20 registers) without requiring PCB or firmware changes.
ATF750LVC-15PU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF750LVC
- Package/Case:
- 24-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Verified
- Programmable Type:
- EE PLD
- Delay Time tpd(1) Max:
- 15 ns
- Voltage Supply - Internal:
- 3V ~ 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:
- Through Hole
- Supplier Device Package:
- 24-PDIP
ATF750LVC-15PU FAQ
1.How can I place an order for ATF750LVC-15PU through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF750LVC-15PU 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 ATF750LVC-15PU reliable?
The price and inventory of ATF750LVC-15PU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF750LVC-15PU is usually 5 days.
3.What payment methods are accepted for ATF750LVC-15PU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF750LVC-15PU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF750LVC-15PU?
ATF750LVC-15PU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF750LVC-15PU 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 ATF750LVC-15PU?
For technical support, including ATF750LVC-15PU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF750LVC-15PU requirements.
6.How does Aetrix verify that ATF750LVC-15PU is sourced from the original manufacturer or authorized distributors?
All ATF750LVC-15PU 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 ATF750LVC-15PU meets industry standards.
7.What is the process for return or replacement of ATF750LVC-15PU?
All ATF750LVC-15PU units undergo pre-shipment inspection (PSI). If there is an issue with ATF750LVC-15PU, 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 ATF750LVC-15PU part is unused and in its original packaging.
Return procedure for ATF750LVC-15PU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF750LVC-15PU Tags
-
5M40ZE64C5N
Intel
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ATF1502ASV-15AU44
Microchip Technology
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5M80ZE64C5N
Intel
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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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