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NXP Semiconductors 74HC75D,653
- Part No.:
- 74HC75D,653
- Manufacturer:
- NXP Semiconductors
- Category:
- Latches
- Package:
- -
- Datasheet:
-
74HC75D,653.pdf
- Description:
- NEXPERIA 74HC75D - D LATCH, HC/U
- Quantity:
- Payment:
- Shipping:
Inventory:3,254
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Product details
Overview
74HC75D,653 from Nexperia is a quad bistable transparent latch IC with complementary Q/nQ outputs, dual active-HIGH enable inputs (LE12 and LE34), 2.0–6.0 V supply range, and SO16 package. It operates from –40 °C to +125 °C and supports transparent data pass-through and edge-triggered latching in digital bus interface and data acquisition systems.
For engineers reviewing the 74HC75D,653 datasheet, 74HC75D,653 pinout, 74HC75D,653 application, or 74HC75D,653 equivalent, key selection considerations include latch enable timing (tsu = 15 ns @ VCC = 6.0 V), propagation delay (tpd ≤ 32 ns max over full temp range), complementary output drive capability, and SO16 thermal derating (12.4 mW/K above 110 °C).
Technical Context
The 74HC75D implements four independent CMOS transparent latches grouped into two pairs-latches 1&2 controlled by LE12, latches 3&4 by LE34-with simultaneous enable control per pair. Each latch features true and complement outputs (nQ and nQ) driven from dedicated data inputs (nD), enabling bidirectional bus isolation and level-sensitive storage without clock edges.
Its input structure includes clamp diodes for overvoltage tolerance, supporting interface to signals exceeding VCC when used with current-limiting resistors. The device complies with JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V), and meets HBM ESD >2000 V and CDM >1000 V per JS-001/JS-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.0 V to 6.0 V - Enables direct interfacing with 3.3 V and 5 V logic domains without level shifters. |
| Propagation Delay | ≤32 ns max (VCC = 6.0 V, Tamb = –40 to +125 °C) - Supports reliable operation in sub-30 MHz synchronous data capture paths. |
| Set-up Time | 15 ns min (VCC = 6.0 V, Tamb = –40 to +125 °C) - Defines minimum data stability window before LE HIGH-to-LOW transition for valid latching. |
| Output Drive | ±4 mA (VOH/VOL @ VCC = 4.5 V) - Sufficient to drive multiple 74HC inputs or small capacitive loads (<50 pF) without buffering. |
| Operating Temperature | –40 °C to +125 °C - Qualified for industrial and extended-temperature embedded control applications. |
| Power Dissipation | 500 mW max (SO16, Tamb ≤ 110 °C); derates 12.4 mW/K above - Constrains maximum sustained switching frequency in thermally constrained PCB layouts. |
| Input Leakage | ±1.0 μA max (VCC = 6.0 V, Tamb = –40 to +125 °C) - Ensures minimal DC loading on high-impedance signal sources like sensor outputs or microcontroller GPIOs. |
Pinout & Package
74HC75D,653 is supplied in SO16 (SOT109-1) plastic small outline package: 16-pin, 3.9 mm body width, center-aligned VCC (pin 5) and GND (pin 12), standard JEDEC MS-012 footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 14, 11, 8 | 1Q, 2Q, 3Q, 4Q | Complementary latch outputs - Active-HIGH true outputs used for bus driving or status indication; paired with inverted outputs on same latch. |
| 16, 15, 10, 9 | 1Q, 2Q, 3Q, 4Q | Inverted latch outputs - Provide logical complement of corresponding Q outputs; enables differential signaling or active-low load control. |
| 2, 3, 6, 7 | 1D, 2D, 3D, 4D | Data inputs - Accept TTL/CMOS-level signals; clamp diodes allow safe interfacing to voltages up to VCC + 0.5 V with series resistance. |
| 4 | LE34 | Enable for latches 3 & 4 - Active-HIGH; when HIGH, latches 3 and 4 enter transparent mode; LOW freezes stored data. |
| 13 | LE12 | Enable for latches 1 & 2 - Independent control channel; allows staggered or grouped latching of two data pairs. |
| 5 | VCC | Positive supply - Center-pin placement improves power distribution symmetry and reduces trace inductance in dense layouts. |
| 12 | GND | Ground reference - Paired with VCC at center pins to minimize ground bounce and improve noise immunity across all latches. |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply range | 2.0–6.0 V operation eliminates need for separate voltage rails when interfacing mixed-voltage subsystems (e.g., 3.3 V MCU to 5 V peripheral). |
| Complementary Q/nQ outputs | Dual-output architecture enables single-latch control of both active-high and active-low loads (e.g., LED anode/cathode drive or bidirectional bus transceivers). |
| Clamp diode inputs | Allows robust interfacing to overvoltage signals (e.g., 12 V sensor outputs) using simple series resistors-no external protection required. |
| High noise immunity | VIH ≥ 4.2 V and VIL ≤ 1.8 V at VCC = 6.0 V provide >1.2 V noise margin, reducing susceptibility to crosstalk in noisy industrial environments. |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II Level B - ensures resilience against transient current surges during hot-plug or ESD events. |
Applications
| Industrial PLC I/O Expansion | Microcontroller Parallel Bus Interface |
|---|---|
|
Use Scenario: Expanding GPIO count of an ARM Cortex-M4 controller to manage 16-channel discrete sensor inputs via parallel 4-bit nibbles. IC Role / Device Role / Timing Role: Quad latch buffers incoming sensor data under software-controlled LE12/LE34 strobes, holding stable values during MCU read cycles. Use Value: Eliminates need for external address decoding logic; 32 ns max tpd ensures deterministic sampling within 100 ns MCU bus access windows. |
Use Scenario: Isolating and latching address/data bus signals between an FPGA and legacy 8-bit microprocessor during memory-mapped peripheral access. IC Role / Device Role / Timing Role: Transparent latch synchronizes asynchronous FPGA handshake signals to microprocessor timing, preventing metastability on shared bus lines. Use Value: Complementary outputs drive both high- and low-side bus transceivers simultaneously; ±4 mA drive sustains signal integrity across 10 cm PCB traces. |
| Automated Test Equipment (ATE) Signal Conditioning | Programmable Logic Controller (PLC) Output Stage |
|
Use Scenario: Capturing and holding test pattern vectors applied to DUT pins during high-speed functional testing sequences. IC Role / Device Role / Timing Role: Latch stores stimulus data under precise timing generator control, decoupling pattern generation rate from DUT response latency. Use Value: 15 ns tsu at 6 V enables reliable capture at 50 MHz pattern rates; SO16 thermal profile supports continuous operation in air-cooled ATE racks. |
Use Scenario: Driving relay coils and indicator LEDs from a modular PLC backplane where output modules require isolated, latched control signals. IC Role / Device Role / Timing Role: Stores command bits from serial-to-parallel shift register until module firmware asserts LE12/LE34 to update physical outputs. Use Value: Clamp diodes tolerate 24 V field wiring transients; –40 to +125 °C rating matches industrial enclosure temperature extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad transparent latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC75PW,118 | TSSOP16 package (SOT403-1), 4.4 mm body width, 8.5 mW/K thermal derating above 91 °C | Better PCB space efficiency and higher density routing; lower thermal mass but reduced power handling vs. SO16 | Select for compact, high-density boards where thermal load is moderate and reflow compatibility with fine-pitch processes is required. |
| SN74HC75N | Obsolete PDIP-16 package; no modern automotive/industrial qualification; limited temp range (–40 to +85 °C) | Only suitable for prototyping or legacy repair; lacks extended-temp support and modern ESD ratings | Avoid for new designs; use only if backward compatibility with legacy through-hole assemblies is mandatory. |
Compared with 74HC75D,653, the TSSOP variant offers superior board area efficiency but requires tighter thermal management, while the PDIP version lacks extended temperature support and modern reliability certifications-making the SO16 the optimal balance of ruggedness, manufacturability, and specification compliance.
Availability
74HC75D,653 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, microcontroller parallel bus interface, automated test equipment signal conditioning, and programmable logic controller output stage applications requiring stable component supply across extended temperature ranges.
Supply support for 74HC75D,653 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
Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions for industrial, automotive, and computing markets.
The 74HC75 belongs to Nexperia's HC-series high-speed CMOS logic family, engineered for low-power, noise-immune digital interfacing in harsh industrial environments with wide supply and temperature margins.
FAQ
What is the maximum operating frequency supported by the 74HC75D,653?
The 74HC75D,653 does not specify a maximum clock frequency because it is a level-sensitive transparent latch-not a clocked flip-flop. Its usable data rate depends on propagation delay (≤32 ns) and set-up/hold timing. For reliable operation with 6 V supply and full temperature range, the effective maximum toggle rate is ~15 MHz when used in a latch-enable strobed configuration with adequate timing margins.
Can the 74HC75D,653 be used with 3.3 V microcontrollers?
Yes. The 74HC75D,653 operates down to 2.0 V and has CMOS-compatible input thresholds: VIH ≥ 2.1 V and VIL ≤ 1.35 V at VCC = 4.5 V, ensuring robust recognition of 3.3 V logic levels. Its outputs swing rail-to-rail, providing 3.3 V–compatible high/low signals when powered at 3.3 V, though official characterization is specified at 2.0/4.5/6.0 V points.
How do the complementary outputs (Q and Q) behave during latching?
When LE12 or LE34 transitions from HIGH to LOW, the data present on the corresponding D inputs one set-up time prior is captured and held. Both Q and Q outputs reflect the latched state simultaneously: Q follows the stored D value (HIGH/LOW), while Q presents its exact inverse. Neither output changes while the enable is LOW, regardless of subsequent D input transitions.
Is the 74HC75D,653 suitable for automotive applications?
No. The 74HC75D,653 is qualified for industrial temperature range (–40 °C to +125 °C) but is not AEC-Q100 qualified nor designated as automotive-grade by Nexperia. It lacks automotive-specific stress testing, failure-in-time (FIT) reporting, and guaranteed PPAP documentation. For automotive use, consult Nexperia's automotive-qualified alternatives such as the 74AHC75 series with AEC-Q100 Grade 2 certification.
74HC75D,653 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Circuit:
- -
- Output Type:
- -
- Voltage - Supply:
- -
- Independent Circuits:
- -
- Delay Time - Propagation:
- -
- Current - Output High, Low:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
74HC75D,653 FAQ
1.How can I place an order for 74HC75D,653 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC75D,653 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 74HC75D,653 reliable?
The price and inventory of 74HC75D,653 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC75D,653 is usually 5 days.
3.What payment methods are accepted for 74HC75D,653?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC75D,653 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC75D,653?
74HC75D,653 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC75D,653 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 74HC75D,653?
For technical support, including 74HC75D,653 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC75D,653 requirements.
6.How does Aetrix verify that 74HC75D,653 is sourced from the original manufacturer or authorized distributors?
All 74HC75D,653 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 74HC75D,653 meets industry standards.
7.What is the process for return or replacement of 74HC75D,653?
All 74HC75D,653 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC75D,653, 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 74HC75D,653 part is unused and in its original packaging.
Return procedure for 74HC75D,653:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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