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Nexperia USA Inc. 74LVCH162373ADL,11
- Part No.:
- 74LVCH162373ADL,11
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Latches
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
74LVCH162373ADL,11.pdf
- Description:
- IC 16BIT D TRANSP LATCH 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,756
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Product details
Overview
74LVCH162373ADL,11 from Nexperia is a 16-bit D-type transparent latch with integrated 30 Ω series termination resistors, 5 V-tolerant I/O, and dual 8-bit 3-state outputs controlled by independent latch enable (1LE/2LE) and output enable (1OE/2OE) inputs. It operates from 1.2 V to 3.6 V, supports mixed-voltage translation between 3.3 V and 5 V systems, and features bus hold on all data inputs for floating-input immunity. It is used in high-speed address/data latching for industrial microcontroller buses and FPGA I/O expansion.
For engineers reviewing the 74LVCH162373ADL,11 datasheet, 74LVCH162373ADL,11 pinout, 74LVCH162373ADL,11 application, or 74LVCH162373ADL,11 equivalent, this device delivers deterministic transparent latching with sub-8 ns propagation delay at 3.3 V, IOFF-enabled partial power-down protection, Schmitt-trigger inputs for noise immunity, and TSSOP48 packaging optimized for dense PCB layouts.
Technical Context
The 74LVCH162373ADL,11 implements two independent 8-bit transparent latch sections, each with dedicated LE and OE controls-enabling selective latching and tri-state control per byte without cross-section interference. Its bus hold circuitry actively maintains logic states on unused D inputs, eliminating external pull-up/down resistors.
It integrates 30 Ω series termination resistors on all 16 outputs to suppress signal reflections in high-speed parallel buses, while IOFF functionality disables outputs and blocks backflow current during partial power-down-critical for hot-swap and low-power system states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.2 V to 3.6 V - Enables operation across ultra-low-power (1.2 V) and standard 3.3 V logic domains. |
| I/O Voltage Tolerance | 5.5 V max - Allows direct interfacing with 5 V peripherals without level shifters in mixed-voltage systems. |
| Propagation Delay | 3.0 ns typical (VCC = 3.3 V) - Supports >100 MHz bus timing margins in transparent mode. |
| Output Termination | 30 Ω series resistor per output - Reduces ringing and overshoot on PCB traces up to 100 mm in length. |
| Bus Hold Current | ±75 μA at VCC = 3.0 V - Maintains stable logic state on un-driven inputs without external biasing. |
| IOFF Leakage | ±10 μA max at VCC = 0 V - Prevents damaging back-current when one supply rail is powered down. |
| Operating Temperature | −40 °C to +125 °C - Qualified for extended industrial and under-hood automotive-adjacent environments. |
Pinout & Package
TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE (Pins 1, 24) | Active-low 3-state output enable | Independently disables 8-bit output groups to prevent bus contention during data transfers. |
| 1LE, 2LE (Pins 48, 25) | Active-high latch enable | Controls transparency vs. storage mode per 8-bit section; rising edge captures input state. |
| 1D0–1D7 (Pins 47,46,44,43,41,40,38,37) | Data inputs (Group 1) | Each includes bus hold; accepts 3.3 V or 5 V logic levels with Schmitt-trigger noise rejection. |
| 2D0–2D7 (Pins 36,35,33,32,30,29,27,26) | Data inputs (Group 2) | Same bus hold and voltage tolerance as Group 1; electrically isolated for independent byte control. |
| 1Q0–1Q7 (Pins 2,3,5,6,8,9,11,12) | Tri-state outputs (Group 1) | Each has integrated 30 Ω series termination; driven only when 1OE = LOW and 1LE = HIGH. |
| 2Q0–2Q7 (Pins 13,14,16,17,19,20,22,23) | Tri-state outputs (Group 2) | Same termination and control logic as Group 1; enables interleaved or split-bus architectures. |
| VCC (Pins 7,18,31,42) | Power supply | Four distributed supply pins minimize IR drop and ground bounce in high-speed switching. |
| GND (Pins 4,10,15,21,28,34,39,45) | Ground reference | Eight ground pins provide low-inductance return paths for all 16 outputs and internal logic. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 8-bit latch architecture | Enables independent control of two memory-mapped byte lanes without shared enable timing constraints. |
| Integrated 30 Ω series termination | Eliminates need for 32 discrete SMT resistors in high-speed parallel bus designs, reducing BOM count and layout area. |
| 5.5 V tolerant I/O with bus hold | Permits direct connection to legacy 5 V logic while preventing floating inputs-no external bias required. |
| IOFF partial power-down protection | Blocks reverse current flow when VCC = 0 V, enabling safe insertion/removal in live-backplane systems. |
| Schmitt-trigger inputs | Accepts slow-rising signals down to 10 ns/V slew rate, improving robustness against EMI and long trace delays. |
Applications
| Industrial PLC Backplane Interface | FPGA I/O Expansion |
|---|---|
Use Scenario: Latching address/data signals between a 3.3 V ARM-based controller and legacy 5 V I/O modules in programmable logic controllers. IC Role / Device Role / Timing Role: Acts as a bidirectional voltage-translating latch with precise setup/hold timing (tsu = 2.0 ns, th = +0.9 ns at 3.3 V) to synchronize asynchronous bus cycles. Use Value: Eliminates external level shifters and pull resistors while maintaining signal integrity across 15 cm backplane traces via integrated 30 Ω termination. | Use Scenario: Buffering and isolating 16-bit parallel configuration data from an FPGA to external SRAM or flash memory. IC Role / Device Role / Timing Role: Provides glitch-free transparent latching during FPGA reconfiguration windows, with independent OE control to decouple memory access from config logic. Use Value: Bus hold prevents metastability on unconnected data lines during partial reconfiguration; IOFF protects memory bus during FPGA power sequencing. |
| Automotive ADAS Sensor Hub | Test Equipment Digital Pattern Generator |
Use Scenario: Interfacing multiple 5 V camera sensor streams to a 3.3 V SoC in advanced driver-assistance systems. IC Role / Device Role / Timing Role: Latches parallel pixel data with sub-8 ns propagation delay and −40 °C to +125 °C operation for engine bay proximity. Use Value: Integrated termination reduces EMI emissions from high-speed video lines; Schmitt triggers reject noise from adjacent motor drivers. | Use Scenario: Driving 16-bit stimulus patterns onto DUT pins in automated test equipment with precise timing control. IC Role / Device Role / Timing Role: Serves as a deterministic, low-skew (tsk(o) ≤ 1.0 ns) output latch synchronized to pattern generator clock edges. Use Value: Dual LE/OE allows simultaneous update of two 8-bit segments with independent gating-enabling multi-phase test vector delivery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit transparent latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVC162373ADGG | No bus hold circuit; identical pinout, timing, and termination. | Requires external pull-up/down resistors on unused inputs; less suitable for floating-bus environments. | Select when cost sensitivity outweighs need for bus hold, or when legacy design already uses pull resistors. |
| SN74ALVCH162373GR | Texas Instruments part; same function but different IOFF threshold (VCC = 0.8 V min) and slightly higher ICC (max 80 μA vs. 20 μA). | Valid for industrial temp range only (−40 °C to +85 °C); not rated to +125 °C. | Choose only if TI supply chain preference exists and +125 °C operation is unnecessary. |
Compared with 74LVC162373ADGG, the 74LVCH162373ADL,11 adds bus hold for robustness in uncontrolled input environments; versus SN74ALVCH162373GR, it offers extended temperature rating and lower static current-making it preferable for automotive-adjacent and energy-sensitive designs.
Availability
74LVCH162373ADL,11 is available at Aetrix Electronics and suitable for industrial PLC backplanes, FPGA I/O expansion, automotive ADAS sensor hubs, and automated test equipment requiring stable component supply across extended temperature ranges and mixed-voltage interfaces.
Supply support for 74LVCH162373ADL,11 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 specializing in high-performance logic, analog, and MOSFET solutions with emphasis on efficiency, reliability, and miniaturization.
The 74LVCH162373ADL,11 belongs to Nexperia's advanced LVC/LVCH logic family, designed specifically for high-speed, low-power, mixed-voltage digital interfacing in industrial, computing, and communications infrastructure.
FAQ
What is the maximum clock frequency supported by the 74LVCH162373ADL,11 in transparent mode?
The device does not use a clock; it operates in transparent latch mode where output follows input while LE is HIGH. With 3.0 ns typical propagation delay at 3.3 V, it supports reliable data capture on buses with ≥300 MHz toggle rates, limited only by external setup/hold timing margins and PCB trace integrity.
Can the 74LVCH162373ADL,11 be used with a 2.5 V supply?
Yes. The device is fully specified from 1.2 V to 3.6 V, including 2.5 V operation. At VCC = 2.5 V, VIH is guaranteed ≥1.7 V and VOL ≤ 0.6 V at 4 mA load, ensuring compatibility with standard 2.5 V logic families and maintaining 30 Ω termination effectiveness.
How does the bus hold feature interact with 5 V inputs?
Bus hold is disabled when input voltage exceeds VCC (e.g., 5 V on a 3.3 V-powered device), allowing safe 5 V tolerance without contention. When VI ≤ VCC, bus hold sustains the last valid logic state with ±75 μA holding current-preventing floating inputs without external resistors.
Is the TSSOP48 package of the 74LVCH162373ADL,11 compatible with standard reflow profiles?
Yes. The SOT362-1 (TSSOP48) package is lead-free and RoHS-compliant, qualified for JEDEC J-STD-020D moisture sensitivity level 3, and supports standard Pb-free reflow profiles with peak temperatures up to 260 °C for ≤60 seconds.
74LVCH162373ADL,11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVCH
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- D-Type Transparent Latch
- Circuit:
- 8:8
- Output Type:
- Tri-State
- Voltage - Supply:
- 1.2V ~ 3.6V
- Independent Circuits:
- 2
- Delay Time - Propagation:
- 3.3ns
- Current - Output High, Low:
- 12mA, 12mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
74LVCH162373ADL,11 FAQ
1.How can I place an order for 74LVCH162373ADL,11 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVCH162373ADL,11 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 74LVCH162373ADL,11 reliable?
The price and inventory of 74LVCH162373ADL,11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVCH162373ADL,11 is usually 5 days.
3.What payment methods are accepted for 74LVCH162373ADL,11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVCH162373ADL,11 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVCH162373ADL,11?
74LVCH162373ADL,11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVCH162373ADL,11 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 74LVCH162373ADL,11?
For technical support, including 74LVCH162373ADL,11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVCH162373ADL,11 requirements.
6.How does Aetrix verify that 74LVCH162373ADL,11 is sourced from the original manufacturer or authorized distributors?
All 74LVCH162373ADL,11 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 74LVCH162373ADL,11 meets industry standards.
7.What is the process for return or replacement of 74LVCH162373ADL,11?
All 74LVCH162373ADL,11 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVCH162373ADL,11, 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 74LVCH162373ADL,11 part is unused and in its original packaging.
Return procedure for 74LVCH162373ADL,11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVCH162373ADL,11 Tags
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