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74AVCB164245VRE4
Texas Instruments
IC TRANSLATOR BIDIR 48TVSOP
990 Pcs New Original In Stock
Voltage Level Translator Bidirectional 2 Circuit 8 Channel 48-TVSOP
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5.0 / 5.0
- (56 Ratings)
74AVCB164245VRE4
Product Overview
1247065
DiGi Electronics Part Number
74AVCB164245VRE4-DGManufacturer
Texas Instruments
74AVCB164245VRE4
Description
IC TRANSLATOR BIDIR 48TVSOPInventory
990 Pcs New Original In Stock
Voltage Level Translator Bidirectional 2 Circuit 8 Channel 48-TVSOP
CAD Models - PCB Symbols & Footprints
Quantity
Minimum 1
Minimum 1
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74AVCB164245VRE4 Technical Specifications
Category
Logic, Translators, Level Shifters
Packaging
-
Series
74AVCB
Product Status
Discontinued at Digi-Key
Translator Type
Voltage Level
Channel Type
Bidirectional
Number of Circuits
2
Channels per Circuit
8
Voltage - VCCA
1.4 V ~ 3.6 V
Voltage - VCCB
1.4 V ~ 3.6 V
Input Signal
-
Output Signal
-
Output Type
Tri-State, Non-Inverted
Data Rate
-
Operating Temperature
-40°C ~ 85°C (TA)
Features
-
Mounting Type
Surface Mount
Package / Case
48-TFSOP (0.173", 4.40mm Width)
Supplier Device Package
48-TVSOP
Base Product Number
74AVCB164245
Datasheet & Documents
HTML Datasheet
74AVCB164245VRE4-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Standard Package
2,000
Alternative Parts
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SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
Leur support après-vente m'a toujours aidé à résoudre rapidement mes soucis.
de desembre 02, 2025
Chaque achat chez DiGi Electronics est une garantie de satisfaction et de qualité.
de desembre 02, 2025
I am impressed by their punctual shipping, which exceeds industry standards.
de desembre 02, 2025
I was able to monitor my shipment closely and accurately.
de desembre 02, 2025
They ship orders quickly, and I received my products in perfect condition well before expected.
de desembre 02, 2025
DiGi Electronics supports us with outstanding after-sales service that we can rely on.
de desembre 02, 2025
The sturdy nature of their products means I can rely on them for long-term projects.
de desembre 02, 2025
Even after purchase, DiGi Electronics maintains high service standards.
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Frequently Asked Questions (FAQ)
Can the 74AVCB164245VRE4 be used to interface between a 1.8V FPGA and a 3.3V microcontroller in a bidirectional data bus application, and what design considerations should I account for?
Yes, the 74AVCB16424245VRE4 supports bidirectional level translation between 1.4V to 3.6V on both VCCA and VCCB, making it suitable for interfacing a 1.8V FPGA I/O bank with a 3.3V microcontroller. Since it uses a bus-hold circuit and automatic sensing for direction control, no direction control pin is needed. However, ensure that the signal rise/fall times are compatible with your data rate requirements, as slower edge rates can cause bus contention during direction transitions. Always decouple both power supplies with 0.1µF ceramic capacitors close to the device pins to maintain signal integrity and reduce ground bounce, especially in high-noise environments. Confirm that the FPGA's 1.8V I/O can tolerate the 1.8V high-level input from the translator when driven from the 3.3V side.
What are the key risks when replacing a failing SN74AVCA164245VR with the 74AVCB164245VRE4 in an existing design?
While both the SN74AVCA164245VR and 74AVCB164245VRE4 are 16-channel bidirectional translators in 48-TVSOP packages, the 'AVCB' version has different drive strength and propagation characteristics compared to the 'AVCA' series. The 74AVCB164245VRE4 has lower drive current (typically ±12mA) and may not support high-speed data buses above 100 Mbps reliably. Verify your timing budget, especially with longer traces or capacitive loads. Also, confirm that the VREF isolation and direction-sense circuitry will not cause glitches if the power rails power up in an unexpected sequence. Always test in the worst-case corner conditions (voltage, temperature) after replacement.
Is the 74AVCB164245VRE4 a viable drop-in replacement for the SN74AVCBH164245VR, and how do their performance and ESD characteristics compare?
The 74AVCB164245VRE4 is not a direct drop-in replacement for the SN74AVCBH164245VR. Although both are bidirectional translators in 48-TVSOP packages, the 'AVCBH' version offers higher drive strength (up to ±24mA) and better voltage tolerance on inputs, making it more robust in high-noise systems. The 74AVCB164245VRE4 has lower ESD protection (typically ±2000V HBM vs ±4000V for AVCBH), increasing susceptibility in industrial or connector-facing applications. If your design involves long traces, unshielded cables, or high EMI, the AVCBH variant was more suitable. If replacing, simulate signal integrity and consider adding RC filters or external ESD protection on all I/Os.
How does the discontinuation of the 74AVCB164245VRE4 at Digi-Key impact long-term reliability and field serviceability of my product design?
Since the 74AVCB164245VRE4 is marked as discontinued at Digi-Key, long-term supply is uncertain despite current stock availability. This poses a significant risk for field repairs or future production runs. For long-term reliability, the device itself is rated for -40°C to 85°C and MSL-1, so aging under normal conditions isn't a concern. However, end-of-life (EOL) status means you should immediately source last-time buy quantities or redesign with a currently recommended part like the SN74AVC16T245 or SN74LVC1T45. Transitioning now avoids obsolescence-related failures in servicing products after 5+ years.
What are the fail-safe behaviors of the 74AVCB164245VRE4 during power cycling or when VCCA is powered but VCCB is floating?
The 74AVCB164245VRE4 has no internal power-on reset or fail-safe logic for partial power conditions. If VCCA is powered and VCCB is unpowered or floating, the I/Os on the VCCB side may still conduct, leading to unintended current paths or latch-up risk. Always ensure that both VCCA and VCCB are powered up in a controlled sequence (ideally simultaneously or VCCB before VCCA), and avoid floating the unused side. If one side must remain unpowered, use external FET isolators or ensure the connected devices are in high-impedance state. Never leave VCCB disconnected during system debug or hot-swap scenarios with VCCA active.
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74AVCB164245VRE4 CAD Models
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