74ALVTH162245LR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments 74ALVTH162245LR is a 16-bit non-inverting dual bus transceiver with 3-state outputs operating from 1.65 V to 3.6 V supply, supporting 64 mA output drive current and sub-3 ns propagation delay in a 48-pin SSOP package. It enables bidirectional level translation between 1.8 V and 3.3 V LVTTL logic families in high-speed data bus applications. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 48
- Lifecycle
- ACTIVE
- Datasheet
- 74ALVTH162245LR Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of 74ALVTH162245LR?
- 16-bit bidirectional bus transceiver with 3-state outputs and 64 mA drive current per channel for driving long PCB traces and heavy capacitive loads at 3.3 V LVTTL levels
- Sub-3 ns propagation delay at 3.3 V supply with ALVTH technology enables high-speed bus bridging up to 200 MHz clock domains without hold-time violations
- Wide 1.65 V to 3.6 V supply range with 5 V-tolerant inputs allows direct interfacing between 1.8 V, 2.5 V, and 3.3 V logic families on mixed-voltage data buses
What is 74ALVTH162245LR used for?
74ALVTH162245LR is used on memory interface boards, FPGA expansion buses, and processor data buses where 16 bidirectional lines must bridge 1.8 V to 3.3 V logic domains at high speed. Its 64 mA output drive strength supports heavily loaded backplane buses with multiple loads across a standard FR4 PCB without additional buffer stages. The 48-pin SSOP footprint makes it a compact choice for multi-layer PCB designs in telecommunications, networking equipment, and industrial control cards that consolidate I/O bus direction control.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the 74ALVTH162245LR datasheet?
74ALVTH162245LR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for 74ALVTH162245LR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output drive strength and propagation delay does 74ALVTH162245LR provide for high-speed bus designs?
74ALVTH162245LR delivers 64 mA output drive current per channel, sufficient to drive up to 8 standard LVTTL loads on a 3.3 V bus without signal integrity issues. Its maximum propagation delay is under 3 ns at 3.3 V supply and 25°C, allowing correct bus operation at clock frequencies up to 200 MHz in synchronous memory and FPGA expansion designs. The 3-state output capability lets multiple transceivers share the same 16-bit bus with no contention when inactive channels are tri-stated.
How does 74ALVTH162245LR handle mixed 1.8 V and 3.3 V logic on the same data bus?
74ALVTH162245LR has 5 V-tolerant inputs and operates with a supply voltage from 1.65 V to 3.6 V, so it translates logic levels bidirectionally between a 1.8 V FPGA I/O bank and a 3.3 V processor data bus within the same 48-pin SSOP device. When powered at 3.3 V, the device accepts 1.8 V logic-high inputs (minimum V_IH is 2 V) on the B-side and drives 3.3 V compliant outputs on the A-side, eliminating the need for a separate level-shifter IC and saving at least 50 mm² of PCB area.
In what bus-width configurations can 74ALVTH162245LR be combined to support 32-bit or 64-bit data paths?
A single 74ALVTH162245LR handles 16 bidirectional bits using its DIR and OE control pins. To build a 32-bit bus, two devices are placed in parallel sharing the same DIR and OE signals, doubling the data width while adding only 96 pins and two 48-pin SSOP footprints to the PCB. For a 64-bit data bus — typical in DDR memory interfaces — four devices are cascaded similarly, providing all 64 bits of bidirectional level translation with less than 3 ns skew between channels, meeting setup and hold margins for standard 200 MHz LVTTL memory controllers.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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