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Nexperia USA Inc. 74HC259D-Q100,118
- Part No.:
- 74HC259D-Q100,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Latches
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HC259D-Q100,118.pdf
- Description:
- IC LATCH 8BIT ADDRESS 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,115
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Product details
Overview
74HC259D-Q100 from Nexperia is an AEC-Q100 Grade 1 qualified 8-bit addressable latch in SO16 package, supporting four operational modes: addressable latch, memory, 3-to-8 demultiplexing, and reset. It operates from 2.0 V to 6.0 V, features CMOS-level inputs, and delivers ≤37 ns propagation delay (VCC = 4.5 V), enabling precise control of individual outputs in automotive body electronics and lighting control systems.
For engineers reviewing the 74HC259D-Q100 datasheet, 74HC259D-Q100 pinout, 74HC259D-Q100 application, or 74HC259D-Q100 equivalent, this device serves as a serial-to-parallel interface with random-access latch capability, TTL-compatible alternatives (74HCT259D-Q100), and automotive-grade reliability across -40 °C to +125 °C.
Technical Context
The 74HC259D-Q100 implements a combinational address decoder and eight independent D-type latches controlled by a shared LE (latch enable, active LOW) and MR (master reset, active LOW). Its mode selection depends solely on the logic states of LE and MR - no internal state machine or clock domain crossing is involved.
Each output Q0–Q7 reflects either stored latch data or real-time D input based on A0–A2 address decoding and current mode. Input clamp diodes allow safe interfacing with voltages exceeding VCC when used with current-limiting resistors, and ESD protection meets HBM >2000 V and CDM >1000 V per JEDEC JS-001/JS-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 2.0 V to 6.0 V - supports wide-range automotive power rails including 3.3 V and 5 V domains without level shifting. |
| Operating temperature | -40 °C to +125 °C - qualified for under-hood and cabin ECUs per AEC-Q100 Grade 1. |
| Propagation delay (D→Q) | ≤37 ns at VCC = 4.5 V - enables reliable timing in 20+ MHz address/data strobe sequences. |
| Output drive strength | ±4.0 mA (VOH/VOL) at VCC = 4.5 V - sufficient to directly drive LEDs, small relays, or CMOS/TTL inputs. |
| Input logic type | CMOS-level compatible - VIH ≥ 3.15 V, VIL ≤ 1.35 V at VCC = 4.5 V, ensuring noise margin in noisy automotive environments. |
| Power dissipation capacitance | 19 pF - determines dynamic power consumption (PD = CPD × VCC² × fi × N), critical for thermal design in dense PCB layouts. |
| ESD rating | HBM >2000 V, CDM >1000 V - exceeds automotive assembly and handling requirements per AEC-Q100. |
Pinout & Package
74HC259D-Q100 uses the SO16 (SOT109-1) plastic small outline package: 16-pin, 3.9 mm body width, 1.27 mm pitch, gull-wing leads. Pin 1 index located at top-left corner with notch marking.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 (A0–A2) | Address inputs | Select one of eight latches (Q0–Q7) for data write or demux routing; decoded internally with no external logic required. |
| 4–7, 9–12 (Q0–Q7) | Latch outputs | Individually accessible storage bits; each retains state in memory mode or follows D input in addressable/demux modes. |
| 8 (GND) | Ground reference | Primary 0 V return path; decoupling capacitor must be placed adjacent to pin 8 and pin 16 for stable operation. |
| 13 (D) | Data input | Source for latch loading or demux channel value; valid during LE LOW in addressable mode or MR HIGH in demux mode. |
| 14 (LE) | Latch enable | Active LOW control: enables address decoding and data capture; HIGH forces all outputs to retain prior state (memory mode). |
| 15 (MR) | Master reset | Active LOW global clear: forces all Q outputs LOW regardless of address, data, or LE state - critical for fail-safe initialization. |
| 16 (VCC) | Supply voltage | Power rail input; requires local 100 nF ceramic decoupling between pins 8 and 16 within 5 mm trace length. |
Key Features
| Feature | Design Value |
|---|---|
| Four-mode operation | Single device replaces discrete latch + decoder + reset logic - reduces BOM count and layout area in lighting and sensor interface modules. |
| Serial-to-parallel conversion | Accepts 3-bit address + 1-bit data to update any single output - eliminates need for 8-bit parallel buses in microcontroller GPIO-constrained designs. |
| Automotive qualification | AEC-Q100 Grade 1 compliance ensures validated reliability for 15+ year service life in engine control, HVAC, and ADAS subsystems. |
| Clamp diode inputs | Enables direct connection to 12 V battery-sensed signals using series resistors - avoids external TVS or level translators in wake-up detection circuits. |
| Side-wettable flanks (SO16) | SOT109-1 package supports AOI inspection of solder joints - improves manufacturing yield and field-reliability verification in Tier 1 production lines. |
Applications
| Automotive Lighting Control | Body Control Module I/O Expansion |
|---|---|
|
Use Scenario: Driving 8 individual LED strings in headlamp or interior lighting with independent on/off control. IC Role / Device Role / Timing Role: Addressable latch providing isolated, glitch-free output switching synchronized to MCU GPIO writes. Use Value: Eliminates need for 8 separate driver ICs; supports PWM dimming via fast LE toggling (≤37 ns setup) without bus contention. |
Use Scenario: Expanding microcontroller GPIO count to manage door lock actuators, window motors, and mirror controls. IC Role / Device Role / Timing Role: Parallel output register holding actuator enable states while MCU processes CAN messages. Use Value: Enables deterministic response to safety-critical commands (e.g., central locking) with MR-driven fail-safe reset on power-up. |
| Instrument Cluster Display Driver | Engine Management Sensor Interface |
|
Use Scenario: Controlling segment drivers or backlight zones in analog/digital hybrid instrument clusters. IC Role / Device Role / Timing Role: Demultiplexer mode routes MCU data to specific display segments without software bit-banging overhead. Use Value: Reduces firmware latency by offloading 3-to-8 decode function; supports hot-plug reconfiguration via address pins. |
Use Scenario: Isolating and conditioning diagnostic test points (e.g., injector enable, fuel pump control) in OBD-II circuits. IC Role / Device Role / Timing Role: Latch holding fault-mitigation states during ECU reset sequences to prevent unintended actuation. Use Value: Ensures MR-initiated output clearance before new control logic loads - critical for ISO 26262 ASIL-B functional safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit addressable latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT259D-Q100 | TTL-compatible inputs (VIH = 2.0 V min); identical pinout, timing, and packaging. | Better interoperability with legacy 5 V TTL microcontrollers lacking CMOS-level output swing. | Select when interfacing with older MCUs or mixed-voltage logic where input threshold matching is critical. |
| SN74LV259APWR | Lower VCC range (1.65–5.5 V); LV logic family; 24-pin TSSOP; no AEC-Q100 qualification. | Not suitable for automotive under-hood use; intended for industrial or consumer portable devices. | Choose only for non-automotive cost-sensitive designs requiring wider low-voltage support and higher pin count flexibility. |
Compared with 74HC259D-Q100, the 74HCT259D-Q100 offers seamless integration into existing 5 V TTL systems without level shifters, while SN74LV259APWR trades automotive qualification for broader low-voltage operation - making the HC variant optimal for new AEC-Q100-compliant designs requiring CMOS input compatibility and SO16 footprint.
Availability
74HC259D-Q100 is available at Aetrix Electronics and suitable for automotive lighting control, body control module I/O expansion, and instrument cluster display driver applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HC259D-Q100 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 leading semiconductor manufacturer specializing in high-performance, high-reliability logic, analog, and MOSFET solutions for automotive, industrial, and mobile markets.
The 74HC259D-Q100 belongs to Nexperia's automotive-qualified logic portfolio, engineered specifically for robust signal routing and I/O expansion in harsh-temperature, safety-critical vehicle subsystems.
FAQ
What are the key differences between 74HC259D-Q100 and 74HCT259D-Q100?
The 74HC259D-Q100 uses CMOS-level inputs (VIH ≥ 3.15 V at VCC = 4.5 V), while the 74HCT259D-Q100 accepts TTL-level inputs (VIH ≥ 2.0 V). Both share identical pinout, timing, SO16 packaging, and AEC-Q100 Grade 1 qualification. The HCT variant simplifies interface with legacy 5 V TTL microcontrollers without level-shifting circuitry.
Can 74HC259D-Q100 operate reliably at 2.0 V supply?
Yes - it is fully specified from 2.0 V to 6.0 V. At VCC = 2.0 V, propagation delay increases to ≤230 ns, and output drive drops to ±2.5 mA, but all logic functions remain guaranteed across -40 °C to +125 °C. This enables use in low-power always-on automotive modules powered from 2.5 V LDO rails.
How does the master reset (MR) pin behave during power-up?
MR is active LOW and asynchronous. During power ramp-up, if MR is held HIGH (via pull-up), outputs retain their previous latched state until first LE assertion. If MR is pulled LOW externally during startup, all Q outputs force LOW immediately - a common practice to ensure known initial state before firmware initialization completes.
Is the SO16 package of 74HC259D-Q100 compatible with automated optical inspection (AOI)?
Yes - the SOT109-1 SO16 package used in 74HC259D-Q100 supports AOI through standard gull-wing lead geometry. While not featuring side-wettable flanks like DHVQFN variants, its coplanar leads and defined solder fillet profile meet IPC-A-610 Class 2/3 inspection criteria for automotive production lines.
74HC259D-Q100,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- D-Type, Addressable
- Circuit:
- 1:8
- Output Type:
- Standard
- Voltage - Supply:
- 2V ~ 6V
- Independent Circuits:
- 1
- Delay Time - Propagation:
- 17ns
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
74HC259D-Q100,118 FAQ
1.How can I place an order for 74HC259D-Q100,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC259D-Q100,118 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 74HC259D-Q100,118 reliable?
The price and inventory of 74HC259D-Q100,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC259D-Q100,118 is usually 5 days.
3.What payment methods are accepted for 74HC259D-Q100,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC259D-Q100,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC259D-Q100,118?
74HC259D-Q100,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC259D-Q100,118 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 74HC259D-Q100,118?
For technical support, including 74HC259D-Q100,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC259D-Q100,118 requirements.
6.How does Aetrix verify that 74HC259D-Q100,118 is sourced from the original manufacturer or authorized distributors?
All 74HC259D-Q100,118 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 74HC259D-Q100,118 meets industry standards.
7.What is the process for return or replacement of 74HC259D-Q100,118?
All 74HC259D-Q100,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC259D-Q100,118, 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 74HC259D-Q100,118 part is unused and in its original packaging.
Return procedure for 74HC259D-Q100,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HC259D-Q100,118 Tags
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