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Home > Products > Integrated Circuits (ICs) > Logic - Buffers, Drivers, Receivers, Transceivers > 74LCX16245TTR
STMicroelectronics
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74LCX16245TTR

In Stock 4501 pcs Reference Price(In US Dollars)
1+
$0.7646
Manufacturer Part Number:
74LCX16245TTR
Manufacturer / Brand
STMicroelectronics
Part of Description:
IC TXRX NON-INVERT 3.6V 48TSSOP
Datasheets:
74LCX16245TTR.pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 4501 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number 74LCX16245TTR
Manufacturer / Brand STMicroelectronics
Stock Quantity 4501 pcs Stock
Category Integrated Circuits (ICs) > Logic - Buffers, Drivers, Receivers, Transceivers
Description IC TXRX NON-INVERT 3.6V 48TSSOP
Lead Free Status / RoHS Status: ROHS3 Compliant
RFQ 74LCX16245TTR Datasheets 74LCX16245TTR Details PDF
74LCX16245TTR Details PDF for FR.pdf
74LCX16245TTR Details PDF for KR.pdf
74LCX16245TTR Details PDF for IT.pdf
74LCX16245TTR Details PDF for ES.pdf
74LCX16245TTR Details PDF for DE.pdf
Voltage - Supply 2V ~ 3.6V
Supplier Device Package 48-TSSOP
Series 74LCX
Package / Case 48-TFSOP (0.240', 6.10mm Width)
Package Tape & Reel (TR)
Output Type 3-State
Operating Temperature -55°C ~ 125°C (TA)
Number of Elements 2
Number of Bits per Element 8
Mounting Type Surface Mount
Logic Type Transceiver, Non-Inverting
Input Type -
Current - Output High, Low 24mA, 24mA
Base Product Number 74LCX16245

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

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2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



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74LCX16245TTR Product Details:

The STMicroelectronics 74LCX16245TTR is a high-performance integrated circuit transceiver designed for sophisticated digital communication and signal routing applications. This advanced logic device belongs to the 74LCX series, offering robust bidirectional data transmission capabilities with non-inverting signal management across two independent 8-bit elements.

Engineered for demanding electronic systems, this transceiver addresses critical design challenges in signal interface and data communication by providing a flexible, high-speed data transfer solution. Its primary functionality involves seamlessly routing digital signals between different logic circuits while maintaining signal integrity and minimizing transmission losses.

Key technical features include a wide operating temperature range from -55°C to 125°C, making it suitable for harsh environmental conditions. The device operates with a supply voltage between 2V and 3.6V, supporting low-power electronic designs. Each of its two 8-bit elements can handle high-current output capabilities, delivering 24mA for both high and low states, which ensures strong signal driving performance.

The transceiver is packaged in a compact 48-TSSOP (Thin Shrink Small Outline Package) format, facilitating efficient surface-mount integration into dense electronic assemblies. Its 3-state output configuration provides additional flexibility in signal management, allowing precise control over data transmission.

Primary advantages include excellent noise immunity, low power consumption, and high-speed signal routing. The device is lead-free and RoHS compliant, meeting contemporary environmental and manufacturing standards.

Potential application areas encompass telecommunications equipment, computer peripherals, industrial control systems, and advanced digital communication infrastructure where reliable, high-speed signal transmission is critical.

Equivalent or alternative models in the same series might include 74LCX16244, 74LCX16373, and other variants within the 74LCX transceiver family, offering similar functional characteristics with potential variations in bit width or specific electrical parameters.

The device's robust design, combined with its versatile signal management capabilities, makes it an excellent choice for engineers seeking reliable, high-performance digital signal interface solutions across various electronic system designs.

74LCX16245TTR Key Technical Attributes

74LCX16245TTR

STMicroelectronics

Logic - Buffers, Drivers, Receivers, Transceivers

74LCX16245TTR Packing Size

Type: 48-TSSOP

Material: Lead free / RoHS Compliant

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

Pin Configuration: 48 pins

Thermal Characteristics: Operating Temperature -55°C ~ 125°C

Electrical Properties: Voltage - Supply 2 V ~ 3.6 V

74LCX16245TTR Application

Used in digital communications and signal processing where buffering, driving, receiving, or transceiving capabilities are required in systems.

74LCX16245TTR Features

The 74LCX16245TTR from STMicroelectronics is a robust Logic - Buffers, Drivers, Receivers, Transceiver product. It supports non-inverting signal transceiving with two elements each handling 8 bits with 3-state outputs, allowing bidirectional data flow with selectivity managed output states. It operates over a wide voltage range from 2 V to 3.6 V and can provide output currents of 24mA for both high and low states, suitable for high-speed interfacing in microprocessor and microcontroller-based systems.

74LCX16245TTR Quality and Safety Features

With a Moisture Sensitivity Level (MSL) of 3, it can withstand exposure to moisture for up to 168 hours. It’s manufactured under stringent conditions, ensuring high reliability and performance under extended operating temperatures ranging from -55°C to 125°C.

74LCX16245TTR Compatibility

Compatible with other 48-TSSOP package Logic - Buffers, Drivers, Receivers, Transceivers components, ensuring seamless integration in PCBs designed for surface mount technology.

74LCX16245TTR Datasheet PDF

For the most detailed and authoritative information regarding the 74LCX16245TTR, customers are advised to download the datasheet PDF available on our website on the current product model page.

Quality Distributor

IC-Components is a premium distributor recognized for our extensive and reliable sourcing for STMicroelectronics products. We strongly recommend customers to acquire a quote directly through our website, assuring the best service and genuine components.

Frequently Asked Questions

Can the 74LCX16245TTR be used to interface a 3.3V microcontroller with a 5V TTL logic bus without level-shifting circuitry?
No, the 74LCX16245TTR is not designed for 5V input tolerance on its A or B ports when operating at 3.3V supply. Although it operates from 2V to 3.6V, applying 5V signals directly to its inputs may exceed the absolute maximum ratings and risk damage due to lack of overvoltage-tolerant input clamps. For safe 3.3V-to-5V interfacing, a dedicated level translator with 5V-tolerant inputs (e.g., SN74LVC8T245) should be used instead of the 74LCX16245TTR.
What are the key power sequencing requirements when using the 74LCX16245TTR in a dual-voltage system with independent VCC(A) and VCC(B)?
The 74LCX16245TTR does not support independent VCC rails—it has a single VCC pin (2V to 3.6V). Therefore, it cannot act as a true bidirectional voltage-level translator between two different supply domains. If your design requires isolation between voltage domains during power-up/down, you must ensure both sides of the bus are powered within specification before enabling the transceiver via the OE (Output Enable) pin to avoid latch-up or contention.
How does the output drive strength of the 74LCX16245TTR (24mA high/low) compare to legacy 74HC16245 devices, and what implications does this have for bus loading in industrial backplane applications?
The 74LCX16245TTR provides significantly higher output drive (24mA vs. ~6–8mA for 74HC16245), enabling it to drive longer traces or multiple loads with reduced signal degradation. This makes it better suited for industrial backplanes or daisy-chained interfaces where capacitive loading exceeds 50pF. However, increased drive strength also raises di/dt, so proper termination and ground plane design are critical to minimize ringing and EMI in high-noise environments.
Is the 74LCX16245TTR suitable for hot-swappable applications where one side of the bus may be powered while the other is unpowered?
No, the 74LCX16245TTR is not recommended for hot-swap scenarios. When one side of the bus is unpowered, floating inputs can cause excessive leakage current or undefined states, potentially leading to excessive power dissipation or damage. For hot-swap compatibility, consider devices with integrated power-fail input protection and Ioff partial-power-down protection (e.g., 74LVC16245A), which the 74LCX16245TTR lacks.
Can I replace a Texas Instruments SN74LVCH16245A with the STMicroelectronics 74LCX16245TTR in an existing 3.3V design without schematic changes?
While both are 8-bit non-inverting transceivers with 3-state outputs and similar pinouts, direct replacement requires verification of timing and electrical margins. The 74LCX16245TTR has slightly faster propagation delay (typically 3.5ns vs. 4.2ns for LVCH at 3.3V) and higher output current, which may affect signal integrity in marginal layouts. Additionally, the 74LCX series lacks the bus-hold feature present in the LVCH family, so pull-up/down resistors may be needed on unused inputs to prevent floating conditions.
What derating considerations apply to the 74LCX16245TTR when operating near its maximum ambient temperature of 125°C in an enclosed industrial control panel?
At TA = 125°C, the 74LCX16245TTR’s output current capability and switching speed degrade significantly due to increased junction temperature. STMicroelectronics recommends derating output current by approximately 50% above 85°C. Ensure adequate thermal relief in the PCB layout (e.g., thermal vias under the TSSOP48 package) and avoid simultaneous high-frequency switching on all 16 channels, as total power dissipation could exceed safe limits without forced airflow.
Does the 74LCX16245TTR support mixed-direction control per byte, or must both 8-bit elements switch direction simultaneously via DIR?
The 74LCX16245TTR uses a single DIR pin that controls the direction of both 8-bit elements simultaneously—there is no per-byte direction control. If your application requires independent direction control for each byte (e.g., Byte 0 as A→B and Byte 1 as B→A), you must use two separate transceivers or select a device with dual DIR pins, such as the 74LCX16646 (which includes separate clock and direction per section).
How should unused I/O pins on the 74LCX16245TTR be handled to ensure reliable operation in noisy factory environments?
Unused I/O pins must not be left floating. For inputs, connect them to VCC or GND through 10kΩ resistors. For 3-state outputs, disable them by asserting OE high and leave the pins unconnected—but ensure the connected system side has appropriate pull-ups/downs if those lines are shared with other active drivers. Floating pins can oscillate, increasing power consumption and radiating noise, which compromises EMC performance in industrial settings.
What is the minimum valid VCC ramp time during power-up to avoid latch-up in the 74LCX16245TTR when used in automotive-grade subsystems?
Although the 74LCX16245TTR is rated for -55°C to 125°C, STMicroelectronics does not specify a minimum VCC ramp rate. However, to prevent latch-up during fast power transients common in automotive environments, ensure VCC rises monotonically from 0V to ≥2V within 1ms and remains above 2V for stable operation. Include a 0.1µF ceramic decoupling capacitor within 5mm of the VCC pin and consider adding a supervisor IC to delay OE activation until VCC is valid.
Can the 74LCX16245TTR be used in a 2.5V system interfacing with legacy 3.3V peripherals, and what are the noise margin implications?
Yes, the 74LCX16245TTR can operate at 2.5V (within its 2V–3.6V range) and interface with 3.3V peripherals, but only if the 3.3V side drives inputs that meet the VIH(min) threshold of the 74LCX16245TTR at 2.5V (typically ~1.7V). However, the noise margin on the low side (VIL(max) ≈ 0.7V at 2.5V) becomes tighter, increasing susceptibility to ground bounce or crosstalk. Validate signal integrity with worst-case timing and voltage simulations, especially in multi-drop configurations.

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