Microchip Technology ATF750C-15PC
- Part No.:
- ATF750C-15PC
- Manufacturer:
- Microchip Technology
- Package:
- 24-DIP (0.300", 7.62mm)
- Datasheet:
-
ATF750C-15PC.pdf
- Description:
- IC CPLD 10MC 15NS 24DIP
- Quantity:
- Payment:

- Shipping:

Inventory:2,450
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ATF750C-15PC from Atmel is a high-performance, electrically-erasable Complex Programmable Logic Device (CPLD) in a 24-pin PDIP package, delivering 7.5 ns pin-to-pin delay at 5V operation, 20 D/T-type flip-flops, and 171 product terms for state-machine and combinatorial logic implementation in industrial control and legacy system upgrades.
For engineers reviewing the ATF750C-15PC datasheet, ATF750C-15PC pinout, ATF750C-15PC application, or ATF750C-15PC equivalent, this device serves as a speed- and feature-upgraded replacement for ATV750B/L with backward-compatible JEDEC programming, programmable pin-keeper circuits, and dual clocking modes (product-term or direct input pin).
Technical Context
The ATF750C-15PC implements a 22-input × 20-output PLD architecture with 42 array inputs, 20 sum terms, and full feedback routing-each of its 20 flip-flops feeds back independently into the logic array and supports individual D- or T-type configuration. It uses Atmel's proven CMOS electrically-erasable technology with 100% factory testing and 20-year data retention.
It supports two clocking schemes: product-term–driven clocks (with asynchronous reset per flip-flop) and direct pin-controlled clocks (Pin 1), enabling mixed-clock-domain designs like buried counters and bi-directional I/O controllers without external logic. All 10 I/O pins are fully configurable as inputs, outputs, or bidirectional buffers with dedicated output-enable product terms.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 20 registered outputs + 10 I/Os = 30 usable logic macrocells; superset of 22V10 with doubled capability |
| Propagation Delay (tPD) | 15 ns max (for -15 speed grade); guarantees deterministic timing for synchronous state machines |
| Clock Options | Dual-mode: per-flip-flop product-term clock or shared Pin 1 direct clock; enables heterogeneous clock domains |
| Power Supply | 5V ±5%; ICC standby = 125–180 mA (commercial temp); no low-power "L" variant in this part number |
| Operating Temperature | -40°C to +85°C (industrial grade); validated across full range with 100% functional test |
| Endurance & Retention | 1000 erase/write cycles; 20-year data retention; security fuse prevents unauthorized pattern readback |
| ESD Protection | 2000V HBM on all pins; eliminates need for external transient suppression in board-level design |
Pinout & Package
ATF750C-15PC is housed in a 24-lead plastic dual-inline package (PDIP, package code 24P3), 0.300" wide, RoHS-compliant, with standard 0.1" pin pitch and through-hole mounting. Pin 1 is marked by notch or dot; Pin 12 is GND, Pin 13 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | CLK/IN | Direct clock input or general logic input; selectable as global clock source for pin-clocked flip-flops |
| Pins 2–11, 14–23 | IN / I/O | 20 configurable pins: 10 dedicated inputs + 10 bidirectional I/Os; each supports pin-keeper enable/disable |
| Pin 12 | GND | Ground reference for logic and power; decoupling capacitor required adjacent to Pin 13 |
| Pin 13 | VCC | +5V ±5% supply; requires local 0.1 µF ceramic bypass capacitor to GND |
| Pins 24 | IN | Additional logic input; completes 22 total array inputs (12 dedicated IN + 10 I/O used as IN) |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Pin-keeper Circuits | Eliminates floating inputs/I/Os without external pull-ups; reduces board space and DC leakage current |
| Dual Flip-flop Clocking Modes | Per-flip-flop product-term clocking or shared Pin 1 clocking-enables multi-rate logic within single device |
| Asynchronous Reset per Flip-flop | Individual reset control allows selective initialization of state-machine segments without global reset propagation delay |
| Synchronous Preset Line | Single global preset signal loads all 20 registers to high state on next clock edge-simplifies boot-state alignment |
| Preload Capability | Forces register states asynchronously via 10.5V pulse on Pin 8; enables deterministic boundary-scan test vector loading |
Applications
| Industrial PLC I/O Expansion | Legacy System Glue Logic Replacement |
|---|---|
Use Scenario: Adding discrete sensor interface and actuator drive logic to aging programmable logic controller backplanes. IC Role / Device Role / Timing Role: CPLD implementing level-shifting, debounce, and synchronized sampling of 8-channel 24V digital inputs and driving 4-channel relay drivers. Use Value: Replaces 3–4 TTL SSI/MSI chips with single ATF750C-15PC; reduces BOM count, improves thermal margin, and retains field-programmability for firmware updates. |
Use Scenario: Modernizing 1990s-era instrumentation systems using obsolete 22V10 PLDs with limited product terms and no T-type registers. IC Role / Device Role / Timing Role: Drop-in logic upgrade providing expanded state depth, dual-clock support, and pin-keeper stabilization for unconnected bus lines. Use Value: Enables reuse of existing PCB layout while adding watchdog timer logic and serial bus arbitration-no redesign or requalification needed. |
| Automated Test Equipment (ATE) Pattern Generator | Motor Control Sequencer |
Use Scenario: Generating precise, multi-phase stimulus waveforms for semiconductor wafer probing with sub-15 ns timing resolution. IC Role / Device Role / Timing Role: Registered logic sequencer producing 16-bit parallel patterns synchronized to external 50 MHz clock with programmable phase offsets. Use Value: Achieves 15 ns worst-case path delay across full 20-register pipeline-meets ATE timing compliance without FPGA-level complexity or cost. |
Use Scenario: Closed-loop stepper/servo motor commutation sequencing in embedded motion controllers with analog feedback integration. IC Role / Device Role / Timing Role: State machine coordinating PWM gate drive, current-sense ADC trigger, and fault shutdown with deterministic 15 ns response latency. Use Value: Integrates encoder quadrature decoding, direction logic, and safety interlocks into one device-reducing interconnect noise and improving EMI immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar complex PLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATF750C-15PU | Same logic architecture and timing, but in 24-pin SOIC (24S) package; 0.300" body width, surface-mount compatible | Required for automated SMT assembly; lacks through-hole mechanical robustness for high-vibration environments | Select when board space is constrained and reflow soldering is available; verify thermal derating for >85°C ambient |
| ATF750CL-15PU | Low-power "L" variant: 1 mA standby current vs. 125+ mA; same 15 ns speed grade but optimized for battery-powered or thermally sensitive systems | Used where continuous operation under power budget limits prohibits standard ATF750C; not suitable for high-frequency clock distribution due to higher jitter | Choose for portable test gear or remote sensors; confirm timing closure with tCO = 10 ns (vs. 5 ns in C-grade) in critical paths |
Compared with ATF750C-15PC, the ATF750C-15PU offers identical logic performance in a space-saving SOIC package ideal for high-density layouts, while the ATF750CL-15PU trades active current for lower static power-making it viable only where standby efficiency outweighs peak-speed requirements.
Availability
ATF750C-15PC is available at Aetrix Electronics and suitable for industrial control, legacy system modernization, and automated test equipment requiring stable component supply, long-lifecycle support, and RoHS-compliant through-hole packaging.
Supply support for ATF750C-15PC 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 fabless semiconductor company specializing in nonvolatile memory, microcontrollers, and programmable logic devices for industrial, automotive, and communications markets.
The ATF750C family was designed to extend the life of 22V10-based systems with enhanced density, flexible clocking, and field-reprogrammability-targeting cost-sensitive, long-lifecycle embedded control applications.
FAQ
What is the maximum operating frequency of the ATF750C-15PC?
The ATF750C-15PC supports up to 50 MHz external-feedback operation (fMAX = 1/(tS + tCO) = 1/(8 ns + 5 ns) ≈ 77 MHz theoretical, but rated 50 MHz per AC specs). Its 15 ns speed grade ensures reliable timing closure in industrial control loops with 20 ns setup windows and 5 ns hold margins at 5V.
Does the ATF750C-15PC support in-system programming?
No-the ATF750C-15PC requires external UV-erasable or parallel programmer (e.g., Data I/O PS-200) using JEDEC file format. It lacks JTAG or ISP circuitry; programming occurs off-board prior to soldering, consistent with its 24P3 PDIP form factor and legacy PLD architecture.
Can the ATF750C-15PC replace an ATV750B-15PC directly?
Yes-ATF750C-15PC is a documented direct replacement for ATV750B-15PC. It maintains identical pinout, voltage levels, and JEDEC file compatibility (V750B mode), while adding T-type flip-flops, pin-keeper circuits, and enhanced clock routing-requiring no PCB changes.
What is the purpose of the pin-keeper circuit in the ATF750C-15PC?
The pin-keeper circuit actively holds unused input or I/O pins at their last driven logic state (high or low), preventing floating nodes that cause shoot-through current and EMI. Enabled via software compiler selection (V750CPPK), it replaces external pull-up/down resistors and cuts board-level power consumption by ~0.5 mA per unconnected pin.
Is the ATF750C-15PC qualified for industrial temperature operation?
Yes-the "U" suffix in ATF750C-15PU denotes industrial grade (-40°C to +85°C), but ATF750C-15PC is commercial grade (0°C to +70°C). For industrial use, ATF750C-15PU (SOIC) or ATF750C-15SU (SOIC, wider body) must be selected; the "PC" suffix confirms PDIP packaging and commercial temperature rating.
ATF750C-15PC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF750C(L)
- Package/Case:
- 24-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- EE PLD
- Delay Time tpd(1) Max:
- 15 ns
- Voltage Supply - Internal:
- 4.75V ~ 5.25V
- Number of Logic Elements/Blocks:
- -
- Number of Macrocells:
- 10
- Number of Gates:
- -
- Number of I/O:
- 10
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 24-PDIP
ATF750C-15PC FAQ
1.How can I place an order for ATF750C-15PC through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF750C-15PC 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 ATF750C-15PC reliable?
The price and inventory of ATF750C-15PC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF750C-15PC is usually 5 days.
3.What payment methods are accepted for ATF750C-15PC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF750C-15PC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF750C-15PC?
ATF750C-15PC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF750C-15PC 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 ATF750C-15PC?
For technical support, including ATF750C-15PC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF750C-15PC requirements.
6.How does Aetrix verify that ATF750C-15PC is sourced from the original manufacturer or authorized distributors?
All ATF750C-15PC 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 ATF750C-15PC meets industry standards.
7.What is the process for return or replacement of ATF750C-15PC?
All ATF750C-15PC units undergo pre-shipment inspection (PSI). If there is an issue with ATF750C-15PC, 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 ATF750C-15PC part is unused and in its original packaging.
Return procedure for ATF750C-15PC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF750C-15PC 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…

