Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Logic > Flip Flops

Texas Instruments SN74ALVCH162374GR

Name: SN74ALVCH162374GR
Brand: Texas Instruments
SKU: SN74ALVCH162374GR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: SN74ALVCH162374GR

Manufacturer:: Texas Instruments

Category:: Flip Flops

Package:: 48-TFSOP (0.240", 6.10mm Width)

Datasheet:: SN74ALVCH162374GR.pdf

Description:: IC FF D-TYPE DUAL 8BIT 48TSSOP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,780

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

SN74ALVCH162374 from Texas Instruments is a 16-bit edge-triggered D-type flip-flop with 3-state outputs, designed for 1.65-V to 3.6-V V_CC operation. It features bus-hold circuitry on data inputs, integrated 26-Ω series output resistors, and dual 8-bit or single 16-bit configuration capability. It is used in I/O port buffering, bidirectional bus driving, and working register applications in industrial and embedded systems.

For engineers reviewing the SN74ALVCH162374 datasheet, SN74ALVCH162374 pinout, SN74ALVCH162374 application, or SN74ALVCH162374 equivalent, key selection criteria include its 48-pin TSSOP (DGG) package, 150-MHz maximum clock frequency, 12-mA output drive strength, bus-hold functionality eliminating external pull resistors, and 3-state enable control per 8-bit bank.

Technical Context

This device implements two independent 8-bit positive-edge-triggered D-type flip-flops, each with dedicated clock (CLK), output-enable (OE), and 8-bit data-in/data-out paths. Internal bus-hold circuitry actively maintains valid logic states on unused D inputs without external components.

Each output includes an integrated 26-Ω series resistor to suppress overshoot/undershoot, enabling direct connection to transmission lines or stubs without discrete termination. OE controls are independent per 8-bit group and do not affect internal latch operation-data can be updated while outputs remain in high-impedance state.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	1.65 V to 3.6 V - supports mixed-voltage system interfacing across 1.8-V, 2.5-V, and 3.3-V domains
Max Clock Frequency	150 MHz - enables high-speed synchronous data latching in memory interfaces and bus controllers
Output Drive	±12 mA - sufficient to drive standard CMOS loads and moderate capacitive buses without buffers
Bus-Hold Current	±25 µA to ±75 µA (V_CC-dependent) - maintains stable input logic during floating or high-impedance source conditions
Propagation Delay (t_pd)	4.6 ns at V_CC = 3.3 V - ensures tight timing margins in fast clock domains
3-State Enable/Disable Time	t_en = 5.2 ns, t_dis = 4.5 ns at V_CC = 3.3 V - minimizes bus contention windows during direction switching
Input Capacitance	6 pF (data inputs), 3 pF (control inputs) - low loading preserves signal integrity on dense PCB traces

Pinout & Package

TSSOP-48 (DGG) package: 12.6 mm × 6.2 mm × 1.2 mm max height, 0.5-mm lead pitch, RoHS-compliant NiPdAu finish, MSL Level-1.

Pin/Terminal	Circuit Role	Design Meaning
1OE, 2OE	Output-enable control (active-low)	Independent 3-state control for first and second 8-bit output banks; high-impedance when high
1CLK, 2CLK	Clock input (positive-edge sensitive)	Triggers simultaneous capture of all 8 associated D inputs into Q outputs on rising edge
1D1–1D8, 2D1–2D8	Data inputs	Asynchronous inputs with bus-hold; retain last valid state when un-driven
1Q1–1Q8, 2Q1–2Q8	Registered outputs	Edge-triggered outputs with integrated 26-Ω series resistance for clean signal edges
V_CC, GND	Power supply terminals	Four V_CC and six GND pins distributed for low-noise, low-impedance power delivery

Key Features

Feature	Design Value
Integrated 26-Ω output series resistors	Eliminates need for external termination resistors, reducing BOM count and PCB area in high-speed bus designs
Bus-hold on all data inputs	Prevents floating-input-induced glitches and EMI without external pullup/pulldown resistors
Dual independent 8-bit banks	Enables flexible partitioning-e.g., one bank for address latching, another for data staging-without inter-bank timing coupling
Wide V_CC range (1.65 V–3.6 V)	Supports direct interface between 1.8-V FPGAs and 3.3-V peripherals without level shifters
Latch-up immunity >250 mA	Ensures robust operation in noisy industrial environments with transient voltage events

Applications

Industrial PLC I/O Expansion	Memory Interface Buffering
Use Scenario: Expanding digital I/O capacity in programmable logic controllers using parallel backplane buses. IC Role / Device Role / Timing Role: Acts as a synchronized input latch and output driver, isolating field-side signals from controller logic with precise clock-aligned sampling. Use Value: Bus-hold prevents spurious transitions during hot-swap or cable disconnect; 3-state outputs allow shared bus arbitration without contention.	Use Scenario: Buffering address and data lines between microcontroller and external SRAM or Flash memory. IC Role / Device Role / Timing Role: Provides registered, skew-controlled drive for memory address setup/hold timing compliance. Use Value: 4.6-ns t_pd and 150-MHz f_max support tight memory access cycles; integrated series resistors damp reflections on long traces.
FPGA Configuration Support	Legacy Parallel Peripheral Interface
Use Scenario: Holding configuration data or status registers for Xilinx or Intel FPGAs with parallel slave select interfaces. IC Role / Device Role / Timing Role: Functions as a 16-bit working register, capturing FPGA-initiated writes on CLK edge and presenting stable outputs under OE control. Use Value: Dual OE allows independent read/write isolation; wide V_CC range matches FPGA I/O bank voltages (1.8 V/2.5 V/3.3 V).	Use Scenario: Interfacing microcontrollers to legacy parallel peripherals such as LCD controllers, ADCs, or DACs with 8/16-bit data buses. IC Role / Device Role / Timing Role: Serves as bidirectional bus transceiver-latching outbound data on CLK and presenting inbound data via 3-state outputs. Use Value: Independent 1OE/2OE enables half-duplex handshaking; bus-hold maintains valid levels during peripheral reset or standby.

Industrial PLC I/O Expansion

Memory Interface Buffering

Use Scenario: Expanding digital I/O capacity in programmable logic controllers using parallel backplane buses.

IC Role / Device Role / Timing Role: Acts as a synchronized input latch and output driver, isolating field-side signals from controller logic with precise clock-aligned sampling.

Use Value: Bus-hold prevents spurious transitions during hot-swap or cable disconnect; 3-state outputs allow shared bus arbitration without contention.

Use Scenario: Buffering address and data lines between microcontroller and external SRAM or Flash memory.

IC Role / Device Role / Timing Role: Provides registered, skew-controlled drive for memory address setup/hold timing compliance.

Use Value: 4.6-ns t_pd and 150-MHz f_max support tight memory access cycles; integrated series resistors damp reflections on long traces.

FPGA Configuration Support

Legacy Parallel Peripheral Interface

Use Scenario: Holding configuration data or status registers for Xilinx or Intel FPGAs with parallel slave select interfaces.

IC Role / Device Role / Timing Role: Functions as a 16-bit working register, capturing FPGA-initiated writes on CLK edge and presenting stable outputs under OE control.

Use Value: Dual OE allows independent read/write isolation; wide V_CC range matches FPGA I/O bank voltages (1.8 V/2.5 V/3.3 V).

Use Scenario: Interfacing microcontrollers to legacy parallel peripherals such as LCD controllers, ADCs, or DACs with 8/16-bit data buses.

IC Role / Device Role / Timing Role: Serves as bidirectional bus transceiver-latching outbound data on CLK and presenting inbound data via 3-state outputs.

Use Value: Independent 1OE/2OE enables half-duplex handshaking; bus-hold maintains valid levels during peripheral reset or standby.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit registered buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC16374DGGR	Same 48-pin TSSOP package; lower drive (±24 mA), no integrated series resistors, no bus-hold	Requires external termination and pull resistors; better suited for low-capacitance point-to-point links	Select when higher drive or cost-sensitive design outweighs need for bus-hold and built-in damping
74ALVCH162374T	Identical electrical specs and pinout; offered by ON Semiconductor in TSSOP-48 with same marking ALVCH162374	No functional difference; dual-sourced for supply chain resilience	Preferred for multi-source procurement where TI and ON Semi part numbers are accepted interchangeably

Compared with SN74ALVCH162374, SN74LVC16374DGGR trades integrated bus-hold and output resistors for higher current drive and lower cost, while 74ALVCH162374T provides identical functionality from a second-source manufacturer-making it ideal for BOM diversification without redesign.

Availability

SN74ALVCH162374 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, memory interface buffering, FPGA configuration support, and legacy parallel peripheral interface applications requiring stable component supply and long-term lifecycle assurance.

Supply support for SN74ALVCH162374 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies with over 90 years of innovation in industrial, automotive, and communications markets.

The SN74ALVCH162374 belongs to TI's Widebus™ family of high-speed, low-voltage logic devices engineered for noise-immune, space-efficient bus interface and data registration in industrial and computing systems.

FAQ

What is the recommended power-up sequence for SN74ALVCH162374 to ensure reliable 3-state behavior?

TI recommends tying OE to V_CC through a pullup resistor during power-up and power-down to guarantee outputs enter high-impedance state before V_CC stabilizes. The minimum resistor value depends on the driver's sink capability; for typical microcontroller GPIOs, 10-kΩ is sufficient. This prevents bus contention and ensures deterministic startup behavior for SN74ALVCH162374 in systems with asynchronous power rails.

Does SN74ALVCH162374 support hot insertion or live bus swapping?

Yes, SN74ALVCH162374 supports hot insertion due to its bus-hold circuitry and robust ESD protection (2000-V HBM, 200-V MM). When inserted into a live bus, bus-hold maintains valid logic levels on undriven D inputs, and the 3-state outputs prevent back-driving. However, OE must be held inactive (high) until V_CC reaches specification to avoid undefined output states during ramp-up.

Can SN74ALVCH162374 operate reliably at 1.65 V V_CC with full timing performance?

Yes, SN74ALVCH162374 is fully specified down to 1.65 V V_CC, including t_su = 2.1 ns and t_h = 0.6 ns at that voltage. All AC and DC parameters-including VOH/VOL, drive strength, and bus-hold thresholds-are guaranteed across the full 1.65–3.6-V range. This makes SN74ALVCH162374 suitable for ultra-low-power battery-operated systems where 1.8-V logic is marginal.

How does the integrated 26-Ω output resistor in SN74ALVCH162374 affect signal integrity on a 50-Ω transmission line?

The 26-Ω series resistor in SN74ALVCH162374 forms a source-termination network with typical PCB trace impedance (~50 Ω), yielding near-ideal damping of reflections. With a 3.3-V output swing, this configuration reduces overshoot to <5% and eliminates ringing without requiring external components-verified in TI's application notes for parallel bus layouts up to 150 MHz.

Is SN74ALVCH162374 pin-compatible with older 74-series logic like SN74ALS16374?

No, SN74ALVCH162374 is not pin-compatible with SN74ALS16374. While both are 16-bit D-type flip-flops in 48-pin packages, SN74ALS16374 uses a 48-pin SSOP (DL) footprint with different pin assignments-including merged OE/CLK signals and non-mirrored I/O layout. SN74ALVCH162374 requires its specific TSSOP-48 (DGG) land pattern and has dedicated per-bank OE and CLK pins, as confirmed in TI's SCES092F datasheet.

SN74ALVCH162374GR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74ALVCH

Package/Case:: 48-TFSOP (0.240", 6.10mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Standard

Type:: D-Type

Output Type:: Tri-State, Non-Inverted

Number of Elements:: 2

Number of Bits per Element:: 8

Clock Frequency:: 150 MHz

Max Propagation Delay @ V, Max CL:: 4.6ns @ 3.3V, 50pF

Trigger Type:: Positive Edge

Current - Output High, Low:: 12mA, 12mA

Voltage - Supply:: 1.65V ~ 3.6V

Current - Quiescent (Iq):: 40 µA

Input Capacitance:: 3 pF

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-TSSOP

SN74ALVCH162374GR FAQ

1.How can I place an order for SN74ALVCH162374GR through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74ALVCH162374GR 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 SN74ALVCH162374GR reliable?

The price and inventory of SN74ALVCH162374GR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ALVCH162374GR is usually 5 days.

3.What payment methods are accepted for SN74ALVCH162374GR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ALVCH162374GR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SN74ALVCH162374GR?

SN74ALVCH162374GR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74ALVCH162374GR 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 SN74ALVCH162374GR?

For technical support, including SN74ALVCH162374GR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ALVCH162374GR requirements.

6.How does Aetrix verify that SN74ALVCH162374GR is sourced from the original manufacturer or authorized distributors?

All SN74ALVCH162374GR 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 SN74ALVCH162374GR meets industry standards.

7.What is the process for return or replacement of SN74ALVCH162374GR?

All SN74ALVCH162374GR units undergo pre-shipment inspection (PSI). If there is an issue with SN74ALVCH162374GR, 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 SN74ALVCH162374GR part is unused and in its original packaging.

Return procedure for SN74ALVCH162374GR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…