SN74LVTH16374-EP - 3.3V 16-Bit D Flip-Flop EP | Texas Instruments
料号： SN74LVTH16374-EP ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1 | $1.00 |
| 10 | $1 | $10.00 |
| 100 | $1 | $100.00 |
| 500 | $1 | $500.00 |
| 1,000 | $1 | $1,000.00 |
SN74LVTH16374-EP 概述
A D-type flip-flop is a fundamental sequential logic element in the CMOS/TTL logic IC family hierarchy: it is a bistable storage circuit that captures the value at its D input on the rising edge of a clock signal and holds it at the Q output until the next clock edge. Sixteen-bit registered buffers like the SN74LVTH16374-EP belong to the broader categories of bus interface flip-flops, logic ICs, and digital semiconductors, providing pipeline registers, data latching, and bus isolation functions in digital systems.
Key features include EP (Enhanced Product) qualification supporting defense, aerospace, and medical applications, 3.3-V operation with 5-V TTL-compatible inputs, 3-state outputs for bus-oriented applications, and ABT (Advanced BiCMOS Technology) combining CMOS low power with TTL drive capability and speed. The device is qualified against the standard SN74LVTH16374, with identical electrical behavior and pinout.
Technically, the LVTH family uses BiCMOS process technology to achieve fast edge rates, balanced drive, and low dynamic power. The 3-state outputs place all sixteen Q outputs into a high-impedance state when OE is high, allowing multiple devices to share a common data bus. Edge-triggered clocking on the positive clock edge simplifies synchronous pipeline design versus level-sensitive latches.
Typical applications include pipeline data registers in space-constrained avionics and defense electronics, bus isolation and buffering in medical imaging equipment, address/data latching in industrial control, and general-purpose 16-bit synchronous storage where EP-level reliability documentation is required.
Design consideration: tie unused inputs to VCC or GND to prevent floating-node oscillation, and always bypass VCC with a 0.1-uF ceramic capacitor close to the device. Verify availability as of 2026-08-30 before committing to a variant.
直接替换替代料： SN74LVTH16374-EP ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
SN74LVTH16374DGGR
✅ 直接替换📋 参考替代料（不在目录中）
SN74LVTH16374DL
✅ 直接替换📋 参考替代料（不在目录中）
SN54LVTH16374
✅ 直接替换📋 参考替代料（不在目录中）
74LVTH16374
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
SN74ACT373-EP
⚡ 相同封装✓ 有现货
$0.75 / 个
查看数据手册 →SN74LVTH16374-EP 最大额定值与电气特性
| Logic Family | LVTH (ABT, Advanced BiCMOS Technology) |
| 功能 | 16-bit edge-triggered D-type flip-flop with 3-state outputs |
| Supply Voltage (VCC) | 3.3 V nominal |
| Input Compatibility | TTL interface to 5-V system environment |
| Trigger Type | Positive edge-triggered |
| 输出类型 | 3-state |
| Output Control | Common clock (CP) and output-enable (OE) |
| Number of Bits | 16 |
| Qualification | Enhanced Product (EP) - defense, aerospace, medical |
| 封装 | SSOP-48 / TSSOP-48 (DL/DGG) |
| 安装类型 | Surface Mount |
SN74LVTH16374-EP 引脚配置
| 引脚 1 | OE — Output enable (active low); high places all outputs in high-Z |
| 引脚 2 | 1Q1 — Flip-flop 1 output |
| 引脚 3 | 1D1 — Flip-flop 1 data input |
| 引脚 4 | 1D2 — Flip-flop 2 data input |
| 引脚 5 | 1Q2 — Flip-flop 2 output |
| 引脚 6 | 1Q3 — Flip-flop 3 output |
| 引脚 7 | 1D3 — Flip-flop 3 data input |
| 引脚 12 | 1CP — Clock input, flip-flops 1-8 (positive edge) |
| 引脚 24 | GND — Ground |
| 引脚 25 | 2CP — Clock input, flip-flops 9-16 (positive edge) |
| 引脚 48 | VCC — 3.3-V power supply |
| 引脚 [DATA_NEEDED: remaining pin map] | [DATA_NEEDED] — Full 48-pin map per TI datasheet |
典型应用
SN74LVTH16374-EP 适用于 6 应用s: Avionics Pipeline Data Registers, Medical Imaging Bus Isolation, Industrial Address and Data Latching, Synchronous Pipeline Storage in Test Equipment, Communications Backplane Data Buffering, Data Acquisition Digital Control.
Avionics Pipeline Data Registers
In space-constrained avionics and defense electronics, the SN74LVTH16374-EP provides sixteen positive-edge-triggered registers with a common clock, enabling wide synchronous data pipelines in a single 48-pin package. Its EP qualification supports defense and aerospace program documentation requirements that commercial parts cannot satisfy. The ABT BiCMOS technology delivers fast edge rates with TTL drive capability, while the 3-state outputs allow the registered data bus to be shared with other bus masters, reducing board-level device count and routing complexity.
推荐
Medical Imaging Bus Isolation
Medical imaging equipment such as ultrasound and digital radiography systems requires clean isolation of shared data buses between acquisition and processing stages. The SN74LVTH16374-EP's 3-state outputs place all sixteen Q outputs into high impedance when OE is high, fully isolating bus segments, while its EP qualification aligns with medical application support defined by TI. Operating from a 3.3-V rail with 5-V TTL input compatibility allows direct interface to legacy sensor front ends running at 5 V without additional level-shifting circuitry.
推荐
Industrial Address and Data Latching
In industrial control and PLC backplanes, the SN74LVTH16374-EP latches address or data words on a common rising clock edge, providing deterministic timing versus level-sensitive latches. The LVTH family TTL drive handles noisy factory-floor bus environments, and the 3.3-V supply with 5-V TTL input tolerance simplifies mixed-voltage retrofits of legacy 5-V controllers. A single device replaces two octal flip-flops, cutting board area and BOM count while the common OE enables clean bus handoff between microprocessor and peripheral sections.
推荐
Synchronous Pipeline Storage in Test Equipment
Test and measurement instrumentation uses registered 16-bit stages to pipeline ADC results and control words across clock domains. The SN74LVTH16374-EP's positive edge-triggered architecture with common CP ensures all sixteen bits update simultaneously, eliminating skew between octal halves. ABT technology provides balanced drive and fast propagation suited to moderate-speed clocking, while 3-state outputs allow the same registered bus to be read by multiple measurement subsystems, one at a time, through OE control.
推荐
Communications Backplane Data Buffering
Telecom and networking line cards register data between the backplane interface and the processing FPGA or CPU. The SN74LVTH16374-EP buffers 16 bits per device with the drive strength of ABT technology, sustaining signal integrity across backplane traces. TTL input compatibility with 5-V environments supports legacy backplane signaling while running the card core logic at 3.3 V. Its EP qualification also covers defense communications variants, giving one qualified BOM line across commercial and defense program builds.
推荐
Data Acquisition Digital Control
In data acquisition systems, the SN74LVTH16374-EP registers channel-select, sample-control, and status words between the host controller and the analog front end. Simultaneous 16-bit clocking guarantees glitch-free control-word transitions, which matters when toggling multiplexer addresses feeding precision converters. The 3-state outputs allow a shared control bus across multiple acquisition cards, selected through OE, while the low dynamic power of BiCMOS LVTH keeps the card power budget predictable in multi-card chassis designs.
推荐
推荐产品汇总
工程参考数据： SN74LVTH16374-EP ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | SN74LVTH16374DGGR | SN74LVTH16374DL | SN54LVTH16374 | 74LVTH16374 |
|---|---|---|---|---|---|
| Package | SSOP-48 / TSSOP-48 | TSSOP-48 (DGG) - same family | SSOP-48 (DL) - same family | SSOP-48 military - same family | TSSOP-48 - same family |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | onsemi |
| Bit Width | 16-bit | 16-bit | 16-bit | 16-bit | 16-bit |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| 5-V TTL Input Compatibility | Yes | Yes | Yes | Yes | Yes |
| EP Qualification | Yes (defense, aerospace, medical) | No | No | Military grade | No |
| Output Type | 3-state | 3-state | 3-state | 3-state | 3-state |
| Trigger Type | Positive edge-triggered | Positive edge-triggered | Positive edge-triggered | Positive edge-triggered | Positive edge-triggered |
关键差异点
- EP qualification for defense, aerospace, and medical （对比 SN74LVTH16374DGGR)
- 16-bit integration replaces two octal flip-flops （对比 CD74HC374)
- 5-V TTL input compatibility at 3.3-V supply （对比 SN74ABT162841)
设计说明
Bypass VCC with a 0.1-uF ceramic capacitor placed within a few millimeters of pin 48, plus bulk capacitance on the board. With sixteen LVTH outputs switching simultaneously, simultaneous-switching current can create supply droop and ground bounce; use a solid ground plane and multiple ground vias to the 48-pin package's ground pin.
ABT technology produces fast edge rates; series-terminate long bus traces (22-33 ohm) to control ringing and reduce EMI. Keep clock (CP) traces short and away from data lines to minimize skew and crosstalk. Ensure OE deassertion timing avoids bus contention when two devices share a bus.
Tie all unused D inputs to VCC or GND - floating BiCMOS inputs can oscillate and increase current draw. Do not leave OE floating. Note that this device provides two clock inputs (1CP for flip-flops 1-8, 2CP for 9-16); connecting both clocks together is standard practice for 16-bit synchronous operation but must be explicit in the design.
合规信息
Compliance data not present in verified web data. EP qualification (defense/aerospace/medical support) confirmed per TI product page. [DATA_NEEDED: RoHS/REACH/lead-free status]
