CI logiques
Produits (272)
SN74LVC1G17DBVR - Schmitt-Trigger Buffer 5.5V | TI
The Texas Instruments SN74LVC1G17DBVR is a single Schmitt-trigger buffer operating from 1.65 V to 5.5 V, providing one non-inverting buffer (Boolean function Y = A) with push-pull output in a 5-pin SOT-23-5 (DBV) surface-mount package. A Schmitt-trigger buffer is a logic device that uses positive feedback to create hysteresis, giving it two distinct switching thresholds for rising and falling edges. Within the logic IC hierarchy, it belongs to the buffer/line-driver family of standard logic, used to isolate, drive, and condition digital signals. Hysteresis makes it ideal for cleaning up noisy signals, squaring off slow edges, and converting slowly changing analog inputs into crisp digital logic levels. Key features include the wide 1.65 V to 5.5 V supply range for compatibility with 3.3 V and 5 V systems, high CMOS output drive of up to 32 mA at 3.3 V, and low static power dissipation. The device is fully specified for partial-power-down applications using Ioff, which prevents damaging backflow current when VCC is removed. Per TI datasheet, the same die is also available in the ultra-small 0.64 mm2 DPW package with 0.5 mm pitch and in SC70 options. The SN74LVC1G17 is fabricated in CMOS technology, combining high-speed operation with low power. Schmitt-trigger inputs provide typical hysteresis of approximately 0.4 V at 3.3 V, ensuring clean switching with slow or noisy inputs, while the push-pull output directly drives LEDs, relay drivers, or downstream logic inputs without external pull resistors. Typical applications include sensor signal conditioning, switch debouncing, level shifting between logic families, oscillator circuits, and clock buffering in industrial and consumer designs spanning both 3.3 V and 5 V rails. Design tip: keep input signals within the supply range to avoid latch-up, and place the device close to the signal source to minimize trace inductance in high-speed paths. Pricing and stock data are current as of 2026-08-30.
SN74LVC1G17QDBVRQ1 - Auto Schmitt Buffer SOT-23-5 | Texas Instruments
The Texas Instruments SN74LVC1G17QDBVRQ1 is an automotive-qualified (AEC-Q100) single Schmitt-trigger buffer designed for 1.65V to 5.5V VCC operation in a 5-pin SOT-23 (DBV) package. It performs the Boolean function Y = A and delivers high output drive while maintaining low static power dissipation across the full supply range. A Schmitt-trigger buffer is a logic device in the buffer/driver family of the standard CMOS logic IC hierarchy. Unlike a plain buffer, its input incorporates hysteresis, meaning the switching thresholds for rising and falling edges differ. This makes the device tolerant of slow or noisy input edges that would cause multiple transitions (oscillation) in conventional CMOS inputs, conditioning signals from RC timing circuits, sensor outputs, or long cables. Key features include the wide 1.65V to 5.5V operating supply range enabling use in mixed 1.8V/3.3V/5V systems, Schmitt-action inputs for noisy or slow-rising signals, push-pull output with high drive capability, and operation across the extended -40C to +125C automotive temperature range. The device belongs to TI's controlled-baseline LVC family with one assembly, one test site, and one fabrication site for consistent quality. The CMOS LVC architecture achieves low static power dissipation with fast propagation delay (typical values around a few nanoseconds depending on VCC; the digchip summary lists 10.7 ns at low supply). The DBV SOT-23-5 package is a compact surface-mount option for space-constrained designs. Typical applications include automotive ECU level translation and signal buffering, switch debouncing with hysteresis, RC oscillator waveform squaring, sensor signal conditioning, and general-purpose buffering in body electronics, infotainment, and industrial modules. Design tip: use the Schmitt hysteresis deliberately - pairing this buffer with a slow RC-filtered input (for example, from a comparator-less analog threshold) yields a clean digital edge; keep VCC decoupling (100 nF ceramic) close to the pin for signal integrity.
SN74LVC1T45DCKR - 420Mbps Single-Bit Dual-Supply Level Shifter | TI
The Texas Instruments SN74LVC1T45DCKR is a single-bit, dual-supply bus transceiver with configurable voltage-level translation and 3-state outputs, delivering up to 420 Mbps of bidirectional data throughput in a 6-pin SC-70 (DCK) package. The device supports two independent supply rails, VCCA and VCCB, each operable from 1.65 V to 5.5 V, with one channel and one direction-control (DIR) pin. According to TI's product page, the part is qualified for -40C to +85C operation. A voltage-level translator (also called a level shifter) is a logic device that enables clean communication between ICs operating at different supply voltages. In modern mixed-voltage systems, a 1.8 V microcontroller may need to interface with a 3.3 V sensor or a 5 V peripheral; level translators preserve signal integrity and protect low-voltage inputs from overvoltage damage. The SN74LVC1T45 belongs to the LVC (Low-Voltage CMOS) logic family, known for high speed, low power, and broad supply compatibility, making it a fundamental building block of digital interface design. Key features include ESD protection exceeding JESD 22 (2000-V Human-Body Model per A114-A), 5.5-V tolerant inputs, a typical propagation delay of 3.3 ns at 3.3 V, a low maximum ICC of 10 uA, and +/-24-mA output drive at 3.3 V. The Ioff feature disables outputs during power-down, preventing damaging backflow current in partial-power scenarios. The dual-supply design ensures output levels match each voltage domain, providing correct logic levels on both sides of the translation boundary. Architecturally, the device uses CMOS logic with a DIR pin controlling data direction: DIR high routes A to B, DIR low routes B to A. The OE pin tri-states outputs for shared-bus operation. VCC isolation is designed so that if either VCC input is at GND, both ports enter the high-impedance state - critical for hot-swap and partial-power scenarios. Typical applications include SPI and UART level shifting between microcontrollers and sensors, memory card interfaces, GPIO translation in mixed-voltage embedded systems, and automotive communication buses. Its 420-Mbps data rate suits high-speed serial links such as I2C, SPI, and UART bridges. The SC-70 package and 10-uA supply current fit portable battery-powered designs. Design tip: decouple both VCCA and VCCB with 0.1-uF ceramic capacitors close to the pins, and drive DIR and OE to valid logic levels during power-up to avoid bus contention. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
SN74LVC1T45QDCKRQ1 - Auto 1-Bit Dual-Supply Translator | TI
The Texas Instruments SN74LVC1T45QDCKRQ1 is an automotive-qualified, single-bit, noninverting dual-supply bus transceiver with configurable voltage translation, providing bidirectional level shifting between any 1.65V to 5.5V logic domains at data rates up to 420 Mbps in a 6-pin SC-70 (DCK) package. The device tracks VCCA on the A-port and VCCB on the B-port, each accepting any supply from 1.65V to 5.5V, enabling universal translation among 1.8V, 2.5V, 3.3V, and 5V logic nodes. A voltage-level translator (also called a dual-supply bus transceiver or level shifter) is a logic IC that bridges domains operating at different supply voltages. In the broader signal-chain taxonomy, translators sit between mixed-voltage blocks such as MCUs, sensors, and transceivers, ensuring logic-level compatibility without overstressing lower-voltage silicon. They are distinct from logic gates in that they specifically isolate two supply rails while passing a digital signal between them with minimum delay. Key features include a maximum propagation delay of 3.3 ns at 3.3V VCC, +/-24 mA output drive strength at 3.3V, low 10 uA maximum quiescent supply current, and Ioff partial-power-down support that prevents back-powering when either rail is removed. Inputs are 5.5V-tolerant regardless of VCC, and 3-state outputs place both ports in Hi-Z when a supply rail is absent. A single DIR pin selects data-flow direction per the datasheet truth table. The device is built on TI LVC CMOS logic technology and is AEC-Q100 qualified for automotive applications, supporting an operating temperature range of -40C to +125C. It combines the speed of the 74LVC family with automotive-grade reliability, PPAP documentation, and extended-temperature screening required for body, chassis, and infotainment modules. Typical applications include translating between 3.3V microcontrollers and 1.8V image sensors, 5V to 3.3V GPIO interfacing in body control modules, level shifting on infotainment I2C/SPI buses, and bridging UART lines between automotive domain controllers and external peripherals. The single-bit density suits one-wire-per-direction protocols such as single-wire CAN signaling or isolated UART paths. Design consideration: keep VCCA less than or equal to VCCB where possible, ensure both supply pins are powered for proper translation, and place decoupling capacitors within 2 mm of each VCC pin to minimize switching transient coupling into translation edges. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Pricing references are as of 2026-10-10.
SN74LVC2244APWR - 8-Bit Buffer/Driver 26Ω 3-State | Texas Instruments
The Texas Instruments SN74LVC2244APWR is an octal non-inverting buffer/line driver with 3-state outputs, organized as two 4-bit elements, fabricated in TI's LVC (Low-Voltage CMOS) process and offered in a 20-pin TSSOP (PW) package. Per the TI datasheet, it operates from a 1.65 V to 3.6 V VCC supply, accepts input voltages up to 5.5 V (5 V tolerant inputs on a 3.3 V rail), and features a maximum propagation delay (tpd) of 5.5 ns at 3.3 V. Each output incorporates an equivalent 26 Ω series resistor that suppresses line reflections, eliminating the need for external termination on point-to-point or lightly-loaded traces. What is an octal buffer with 3-state outputs? An octal buffer is a non-inverting digital driver that replicates a logic signal on its inputs to its outputs while providing increased drive strength; the 3-state feature lets each output be placed in a high-impedance state under the control of an output-enable pin so that multiple devices can share a bus without contention. Buffers belong to the larger family of Logic ICs > Buffers, Drivers, Receivers and serve as building blocks alongside latches, transceivers, and registered drivers in modern digital systems. Key differentiating features of the SN74LVC2244A include bus-hold free I/O, partial-power-down support through Ioff circuitry that prevents back-drive current when VCC is removed, and ESD protection exceeding 2000 V (HBM) per the JESD22-A114 standard. The device is specified across the -40 °C to +85 °C industrial temperature range and is rated for a typical VOLP (output ground bounce) of less than 0.8 V at VCC = 3.3 V, making it well suited for mixed-voltage systems that interface 5 V legacy peripherals with 3.3 V controllers. Architecturally, the SN74LVC2244A splits its eight channels into two banks of four, each bank gated by its own active-low output-enable pin (1OE and 2OE), so two independent sub-systems can be controlled from one IC. The 26 Ω on-chip damping, combined with typical VOLV/VOHV undershoot figures well below 1 V, allows the device to be inserted directly onto unterminated PCB traces of moderate length without external resistor packs. The PW (TSSOP-20) footprint is one of the most common surface-mount logic footprints and pairs naturally with TI's broad LVC, LVCH, and LVC1G families for multi-rail designs. Typical applications include memory and address bus buffering on motherboards and DSP systems, isolation between hot-swap controllers and backplanes, level translation between 3.3 V ASICs and 5 V peripherals, and I/O expansion for microcontrollers that lack sufficient drive strength on shared buses. Designers of portable instruments and industrial PLCs particularly value the wide 1.65-3.6 V supply range, which simplifies battery and 3.3 V/2.5 V/1.8 V mixed-voltage designs. When laying out the SN74LVC2244APWR, place bypass capacitors (typically 0.1 µF ceramic) within 2-3 mm of the VCC and GND pins, and keep the two 4-bit banks' enable traces well separated to avoid coupling. Verify that the driven trace length does not exceed the 5.5 ns propagation budget - for traces shorter than ~30 cm on FR-4 the 26 Ω internal resistance is sufficient to suppress reflections. This page synthesizes distributor pricing across multiple regions, datasheet-anchored specifications, drop-in TSSOP-20 alternatives, and practical design notes that are not collected in a single location on the manufacturer product page, giving procurement and design engineers a one-stop reference for the SN74LVC2244APWR.
SN74LVC240A - Octal Inverting Buffer 3-State LVC | TI
The Texas Instruments SN74LVC240A is an octal inverting buffer/line driver with 3-state outputs, organized as two independently enabled 4-bit banks operating from a 1.65 V to 3.6 V supply. It is designed specifically to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. An octal buffer/line driver is a digital logic IC in the 74xx logic family that provides signal buffering, inversion, and bus isolation. Within the logic-IC hierarchy, the SN74LVC240A belongs to the Low-Voltage CMOS (LVC) technology family, a subfamily of 74-series logic. Its 3-state outputs allow multiple devices to share a common bus without contention, a fundamental requirement in bus-oriented digital systems such as memory subsystems and backplanes. Key features include 5.5-V tolerant inputs enabling mixed-mode signal operation on all ports (5-V input/output voltage support), a typical propagation delay (tpd) of 3.3 ns at VCC = 3.3 V, and low typical VOLP (output ground bounce) and VOHV (output VOH undershoot) figures for superior signal integrity. According to the TI datasheet (SCAS293), the device can drive a load with total capacitance less than or equal to 50 pF while still meeting all datasheet specifications. The device is built on advanced CMOS technology, combining low static power consumption with high noise immunity and strong output drive. The dual-bank structure with separate active-low output-enable (OE) inputs supports half-duplex transceiver topologies and word-wide bus gating. When OE is low, data passes from the A inputs to the inverted Y outputs; when OE is high, outputs enter the high-impedance state. Typical applications include 3-state memory address and clock driving, 3.3-V to 5-V mixed-voltage bus interfacing, industrial control I/O buffering, and telecom line-card logic. Packages include SOIC-20 (DW), TSSOP-20 (PW), and SSOP-20 (DB). Design tip: keep total capacitive load at or below 50 pF for guaranteed timing, add 0.1 uF decoupling per supply pin, and tie unused inputs to VCC or GND to prevent floating-node oscillation.
SN74LVC244APWR - Octal Buffer 3-State 24mA | TI | Bus Driver
The Texas Instruments SN74LVC244APWR is an octal buffer/line driver with 3-state outputs, designed for 1.65-V to 3.6-V VCC operation in a 20-pin TSSOP (PW) package rated from -40C to +125C. Organized as two 4-bit non-inverting buffers with separate active-low output-enable (OE) inputs, it provides asynchronous communication between data buses. A buffer/line driver is a digital logic IC that provides signal amplification, isolation, and fan-out between system blocks. Within the logic IC hierarchy, it belongs to the standard logic family alongside transceivers, latches, and flip-flops. The 3-state output feature lets the device disconnect from a shared bus, enabling multiple drivers to share a common data line without bus contention. Key features include a wide 1.65-V to 3.6-V supply range covering both 1.8-V and 3.3-V logic domains, inputs that tolerate voltages up to 5.5 V for mixed-voltage systems, and +/-24 mA output drive at 3.3 V. The Ioff partial-power-down circuitry prevents damaging backflow current when VCC is removed, and latch-up performance exceeds 100 mA per JESD 78 Class II. ESD protection exceeds 2000-V HBM (JESD 22 A114-A) and 1000-V CDM. Fabricated in advanced CMOS, the SN74LVC244A achieves a typical propagation delay of 4.3 ns at 3.3 V while maintaining low static power consumption, balancing speed and efficiency for bus-interface timing budgets. Typical applications include memory address buffering, clock distribution, and general-purpose I/O expansion for microcontrollers, FPGAs, and DSPs, plus level shifting between 1.8-V and 3.3-V domains in industrial control and telecommunications equipment. Design tip: decouple VCC with a 0.1-uF ceramic capacitor placed close to the pin, tie unused OE pins to a defined logic level, and keep traces short for high-speed signals.
SN74LVC244QAPWRQ1 - Auto 8-Bit 3-State Buffer | TI
The Texas Instruments SN74LVC244QAPWRQ1 is an automotive-qualified (AEC-Q100) octal buffer/driver with 3-state outputs, organized as two independent 4-bit sections with separate output-enable (OE) inputs. It operates from a 1.65 V to 3.6 V supply in a 20-pin TSSOP (PW) surface-mount package with tape-and-reel packing. An octal buffer is a digital logic device that strengthens (buffers) eight signal lines at once, providing higher output drive and isolation between a controller and a load. Within the logic hierarchy, it belongs to the buffer/driver family of CMOS logic ICs, positioned above single-gate buffers and below bus transceivers, which add bidirectional capability. Key features include fully 3-state outputs for shared-bus connections, individual OE control for each 4-bit half, LVC-family CMOS technology supporting partial-power-down operation with Ioff protection, and an operating temperature range of -40C to +125C suitable for automotive and industrial environments. According to the TI SN74LVC244A-Q1 datasheet (Rev. D), the device performs the non-inverting buffer function Y = A for each channel. The LVC process provides low quiescent current, TTL-compatible input thresholds at 3.3 V operation, and balanced output drive for typical 24 mA-class loads at 3.3 V, making it suitable for address/data bus driving, clock distribution, and level-stable signal buffering between a microcontroller and peripherals. Typical applications include automotive body control modules, gateways and infotainment buses, industrial PLC I/O isolation, and memory or peripheral chip-select driving in embedded systems. Design tip: tie unused OE inputs to VCC through a pull-up resistor so outputs stay in the high-impedance state during power-up, and decouple the VCC pin with a 0.1 uF ceramic capacitor placed within 2 mm of the pin to suppress transient currents during simultaneous switching.
SN74LVC2G125DCUR - Dual Bus Buffer 3-State Output | Texas Instruments
The Texas Instruments SN74LVC2G125DCUR is a dual non-inverting bus buffer gate with 3-state outputs, integrating two independent 1-bit buffer/driver channels in an 8-pin VSSOP (DCU) package. Each channel operates across a wide 1.65 V to 5.5 V VCC supply range, supports ±24 mA output drive at 3.3 V, and features an active-low output-enable (OE) input that places the outputs in a high-impedance state when driven high. A bus buffer (also called a line driver or 3-state buffer) is a non-inverting signal-routing building block used to isolate a source from a shared bus, increase fan-out, or provide bidirectional control over which device drives a line. Buffers belong to the broader logic IC family (combinational logic), which sits under the digital semiconductor hierarchy. The SN74LVC2G125 implements LVC (Low-Voltage CMOS) technology, which is a sub-family of CMOS logic optimized for low static power and 5 V-tolerant I/O on mixed-voltage rails. Key features include a typical propagation delay (tpd) of 3.7 ns at 3.3 V, ±24 mA output drive capability (IoL/IoH) at 3.3 V, support of partial-power-down applications through Ioff circuitry that disables outputs to prevent backflow current, and an operating temperature range of -40 °C to +125 °C. The LVC2G family provides 5.5 V tolerance on the input pins even when VCC is lower, enabling level translation between 1.8 V, 3.3 V, and 5 V domains. From an architectural perspective, the device uses TI's EPIC (Enhanced-Performance Implanted CMOS) submicron process, giving it ESD protection exceeding 2000 V per MIL-STD-883 Method 3015 and 200 V using the machine model (C = 200 pF, R = 0 Ω). Each buffer consists of an input stage, an output-enable gate, and a 3-state CMOS output stage with controlled rise/fall symmetry. Typical applications include I2C/SPI bus isolation, point-to-point signal buffering on memory and module interfaces, GPIO expansion in microcontroller boards, level shifting between 1.8 V / 3.3 V / 5 V logic domains, and fan-out extension for low-drive clock or reset lines. The compact VSSOP-8 footprint makes it suitable for handheld and space-constrained designs. When designing with this device, ensure the OE pin is driven to a defined logic level (tie to GND through a pull-down if unused) to prevent the output from floating into a high-impedance state unintentionally. Decoupling VCC with a 0.1 µF ceramic capacitor placed within 5 mm of the supply pin is recommended for clean switching at high frequencies. This page synthesizes real-time distributor pricing, validated drop-in alternatives, and practical PCB design guidance for the SN74LVC2G125DCUR that goes beyond the manufacturer datasheet alone, helping engineers evaluate sourcing and design trade-offs at a glance.
SN74LVC2G132YZPR - Dual 2-Input NAND Gate, Schmitt-Trigger, 8-DSBGA | Texas Instruments
The Texas Instruments SN74LVC2G132YZPR is a dual 2-input NAND gate IC with Schmitt-trigger inputs, housed in an 8-pin DSBGA (NanoFree) wafer-level chip-scale package. The device operates from a 1.65 V to 5.5 V VCC supply, supports 5 V tolerant inputs up to 5.5 V, and provides two independent Schmitt-trigger NAND gates with ±24 mA output drive at 3.3 V. The Schmitt-trigger architecture gives different positive-going (VT+) and negative-going (VT-) input thresholds, providing superior noise immunity in harsh or slowly-changing input environments. A Schmitt-trigger NAND gate is a digital logic device that combines a NAND Boolean function with hysteresis at its input stage. NAND gates are universal logic primitives used to construct AND, OR, NOT, and any other Boolean function. Adding Schmitt-trigger hysteresis prevents oscillation when the input signal has slow edges or noise, which is critical in industrial, automotive, and battery-powered applications where supply rails can be noisy and rise/fall times are uncontrolled. Key features include 3.3 V typical low-power consumption of 10 µA ICC max, ±24 mA output drive at 3.3 V for driving heavily loaded buses, support for 5 V VCC operation, and an output ground bounce (VOLP) that meets LVC-family switching specifications. The DSBGA package is part of TI's NanoFree family, which eliminates lead-frame mass and provides a footprint as small as the silicon die itself, ideal for space-constrained handheld and wearable designs. The SN74LVC2G132 uses a standard CMOS implementation with CMOS-compatible inputs. The LVC logic family is designed for low-voltage, low-power operation while still delivering high drive strength. The device performs the Boolean function Y = A · B (active-low) in positive logic and is fully specified for partial-power-down applications with Ioff circuitry that prevents backflow current when the device is powered down but I/O lines remain active. Typical applications include portable consumer electronics, mobile handsets, tablet computing, industrial control logic, automotive body and infotainment modules, signal conditioning for noisy sensor lines, level shifting between low-voltage microcontrollers and 5 V peripherals, and wearable health monitors where board space is at a premium. The wide operating voltage range makes it compatible with 1.8 V, 2.5 V, 3.3 V, and 5 V system rails. When designing with this device, route input traces away from noisy power or switching nodes to take full advantage of Schmitt hysteresis. Bypass VCC with a 0.1 µF ceramic capacitor placed within 5 mm of the supply pin. Note that the DSBGA package requires precise PCB land pattern and reflow profile control; refer to TI application note SCBA017 for DSBGA handling guidelines. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, including cross-reference information verified against TI product family listings and the Site MPN cross-reference database.
SN74LVC2G17 - Dual Schmitt-Trigger Buffer 5.5V | Texas Instruments
The Texas Instruments SN74LVC2G17 is a dual Schmitt-trigger buffer designed for 1.65-V to 5.5-V VCC operation, performing the Boolean function Y = A on two independent channels. Packaged in the popular SOT-23-6 (DBV), SON-6 (DRY), and NanoStar (YEP) options, it suits space-constrained designs requiring noise-tolerant signal buffering. A Schmitt-trigger buffer is a digital logic gate that uses positive feedback to create different input thresholds for rising (VT+) and falling (VT-) signals. This hysteresis eliminates false triggering from noise or slow input edges, making Schmitt buffers essential for conditioning noisy signals, debouncing mechanical switches, and squaring up slow-rise-time waveforms. The SN74LVC2G17 belongs to the LVC logic family, part of the broader low-voltage CMOS buffer and line-driver category in the logic IC hierarchy. Key features include a wide supply range of 1.65 V to 5.5 V, 5.5-V input tolerance for mixed-voltage interfacing, and a maximum propagation delay (tpd) of 3.3 ns at 3.3 V. Output drive is ±24 mA at 3.3 V with a push-pull stage providing rail-to-rail output swing. Maximum ICC is 10 uA, enabling low-power designs, and the Ioff feature fully supports partial-power-down operation by preventing damaging backflow current when VCC is removed. Architecturally, the device uses a CMOS process with comparator-based Schmitt input circuits that guarantee stable switching even with very slow input transitions. Typical VOLP (output ground bounce) and VOHV (output VOH undershoot) are specified at 25C to characterize system-level signal integrity. Both an automotive SN74LVC2G17-Q1 (AEC-Q100 qualified) variant and the enhanced SN74LVC2G17-EP for demanding applications are available. Typical applications include switch debouncing, sensor signal conditioning, level shifting between 3.3-V and 5-V logic domains, and buffering of slow or noisy signals in industrial, consumer, and automotive electronics. Design tip: leverage the hysteresis characteristics for your noise environment and observe proper power sequencing - Ioff supports partial power-down, but unintended current paths should still be avoided.
SN74LVC2G17DBVR - Dual Schmitt-Trigger Buffer 1.65V-5.5V | TI
The Texas Instruments SN74LVC2G17DBVR is a dual-channel non-inverting Schmitt-trigger buffer housed in a 6-pin SOT-23 (DBV) package, designed for 1.65 V to 5.5 V VCC operation. Each channel performs the Boolean function Y = A and supports push-pull output drive with 32 mA of sink/source current, while the Schmitt-trigger inputs deliver separate positive-going (VT+) and negative-going (VT-) thresholds for high-noise-immunity signal conditioning. A Schmitt-trigger buffer is a type of logic buffer whose input stage uses positive feedback to create two distinct switching thresholds: VT+ for the rising edge and VT- for the falling edge. The hysteresis between these thresholds (typically around 0.5 V at 3 V VCC) rejects input noise and slow edges, making the device well suited for interfacing with mechanical switches, long PCB traces, or any signal that may be distorted by reflections and crosstalk. The SN74LVC2G17 sits in the LVC (Low-Voltage CMOS) logic family - a subcategory of standard logic ICs within the broader semiconductor hierarchy: logic gate -> buffer/driver -> 74-series logic -> integrated circuit. Key features include 5.5 V tolerant inputs that accept rails higher than VCC, an Ioff partial-power-down mode that disables outputs to prevent back-drive current when the device is unpowered, ±24 mA output drive at 3 V, and 4.4 ns typical propagation delay at 3.3 V. The NanoFree package technology eliminates traditional lead frames, and the SOT-23-6 footprint occupies just 2.9 mm x 1.6 mm of PCB area, enabling high-density designs in portable equipment. Typical applications include debouncing mechanical switches in consumer and industrial controls, buffering slow or noisy edges in sensor signal chains, single-direction level shifting between 1.8 V, 3.3 V and 5 V domains, fan-out for clock or reset lines, and LED or relay driver interfaces. The wide supply range also allows the part to operate across multiple rails in mixed-voltage systems. When designing with this device, place decoupling capacitors (0.1 uF ceramic typical) as close to VCC and GND as possible and keep input traces short to preserve noise margin. Because the outputs are push-pull CMOS, no external pull-up resistors are required and the device produces symmetrical rise and fall times into capacitive loads. This page synthesizes distributor stock and pricing, drop-in alternatives in the same SOT-23-6 footprint, and practical design notes that complement the TI datasheet's typical-application circuits.
SN74LVC2G34DCKR - Dual Buffer 1.65-5.5V SC-70-6 | Texas Instruments
The Texas Instruments SN74LVC2G34DCKR is a dual non-inverting buffer gate designed for 1.65-V to 5.5-V VCC operation, performing the Boolean function Y = A in positive logic. It comes in a compact 6-pin SC-70 (DCK) surface-mount package measuring 2.0 mm x 1.25 mm with a 0.65-mm pin pitch. A buffer gate is a digital logic circuit that amplifies or isolates a signal without changing its logic level. In the logic IC hierarchy, it falls under gates within the 74LVC CMOS logic family, ultimately classified as a standard logic integrated circuit. Buffers increase fan-out, drive longer PCB traces, and provide impedance isolation between a signal source and its load. Key features include support for 5-V VCC operation, inputs tolerant up to 5.5 V regardless of supply, and a typical propagation delay (tpd) of 3.3 ns at VCC = 3.3 V. Output drive is +/-24 mA at 3.3 V, ensuring solid signal integrity. Maximum ICC is only 10 uA, making the part ideal for battery-powered designs. The device is fully specified for partial-power-down applications using Ioff circuitry, which disables outputs to prevent damaging backflow current when VCC is removed. The SN74LVC2G34 uses a CMOS process delivering high noise immunity and low static power dissipation. Typical VOLP (output ground bounce) and VOHV (undershoot) performance keeps switching noise minimal in mixed-signal boards. NanoStar and NanoFree package technologies are available in the family for ultra-miniature footprints. Typical applications include MCU GPIO buffering, clock distribution, level-compatible interfacing between 3.3-V and 5-V domains, and general logic isolation in consumer, industrial, and communication equipment. Pair it with TI translation parts such as TXS0102-Q1 or SN74LVC1T45 for full level shifting. Design tip: decouple VCC with a 0.1-uF ceramic capacitor close to the pin, and keep buffered traces short and impedance-controlled to preserve the 3.3-ns speed advantage.
SN74LVC374A-Q1 - Octal D Flip-Flop, 3-State | Texas Instruments
The Texas Instruments SN74LVC374A-Q1 is an automotive-catalog octal edge-triggered D-type flip-flop with 3-state outputs, operating from a 1.65V to 3.6V supply (designed for 2.7V to 3.6V VCC operation) and available in 20-pin surface-mount packages including SOIC-20 (DW) and TSSOP-20 (PW). An octal D-type flip-flop is a sequential logic IC in the 74-series logic family that captures eight data bits simultaneously on the rising edge of a clock signal and holds them until the next clock edge. Within the logic hierarchy, it belongs to the flip-flop/latch category of CMOS integrated circuits, which sit inside the broader domain of digital logic ICs and semiconductor components. The 3-state outputs allow the device to be electrically disconnected from a shared bus, enabling multi-drop bus architectures. Key features include 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads, 5.5V-tolerant input pins allowing safe interfacing with 5V logic systems, and typical output ground bounce (VOLP) and VOH undershoot (VOHV) specifications provided at VCC = 3.3V, 25C. As a high-drive CMOS device, it delivers 32 mA of drive current at 3.3V, making it ideal for driving multiple outputs and for high-speed applications up to 100 MHz, according to TI's SNx4LVC374A literature. The Q1 automotive-catalog variant is qualified for automotive environments and suits AEC-relevant designs. The architecture uses edge-triggered master-slave storage with a common clock (CP) pin and an active-low output-enable (OE) pin that controls all eight 3-state outputs independently of the clock. Typical applications include automotive body electronics, bus-interface buffering and data retention, register banks in instrumentation, and memory address/data latching where a shared 3-state bus is required. Design tip: tie the OE pin high through a pull-up resistor at power-up to keep the bus disconnected until the clock and data lines are stable, avoiding bus contention during system initialization.
SN74LVC8T245PW - 8-Bit Dual-Supply Level Translator | TI (Tape & Reel)
The Texas Instruments SN74LVC8T245PW is an 8-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs, packaged in a 24-pin TSSOP (PW) with Tape and Reel delivery. Both the VCCA and VCCB ports operate over the full 1.65V to 5.5V supply range, enabling bidirectional level translation between any combination of 1.8V, 2.5V, 3.3V, and 5V logic domains. A bus transceiver is a digital logic IC that moves data bidirectionally between two buses, with direction (DIR) and output-enable (OE) controls providing the handshake. The SN74LVC8T245 belongs to the voltage-level translator / logic IC hierarchy and is a member of the TI Widebus+ family, solving the classic mixed-voltage problem in systems where MCUs, FPGAs, and peripherals run on different rails. Key features include the fully configurable dual-rail architecture, 3-state outputs for bus sharing, mixed-mode signal operation (5V-tolerant I/O with reduced supply), and Ioff plus power-up 3-state support that blocks damaging backflow current during partial power-down and hot-insertion events. DIR and OE are referenced to VCCA, simplifying control-logic design. Technically, the device uses two independent supply-referenced port circuits with low-impedance LVC output drivers. The typical data rate of 100 Mbps supports SPI, I2C, UART, and parallel bus translation while preserving signal integrity with up to 15 pF load capacitance. Inputs accept voltages up to 5.5V regardless of supply level. Typical applications include level shifting for SD and SIM card interfaces, sensor and memory modules, 3.3V-to-5V industrial control I/O, and FPGA/CPLD I/O-bank adaptation to external peripherals. Design tip: decouple both VCCA and VCCB with 0.1uF ceramic capacitors placed close to the pins, tie OE to its proper logic level to avoid a 3-state bus at power-up, and set DIR according to data flow direction. Prices as of 2026-08-30.
SN74LVC8T245PWR - 8-Bit Dual-Supply Level Translator | TI
The Texas Instruments SN74LVC8T245PWR is an 8-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs, packaged in a 24-pin TSSOP (PW) with Tape and Reel delivery. Both the VCCA and VCCB ports operate over the full 1.65V to 5.5V supply range, enabling bidirectional level translation between any combination of 1.8V, 2.5V, 3.3V, and 5V logic domains. A bus transceiver is a digital logic IC that moves data bidirectionally between two buses, with direction (DIR) and output-enable (OE) controls providing the handshake. The SN74LVC8T245 belongs to the voltage-level translator / logic IC hierarchy and is a member of the TI Widebus+ family, solving the classic mixed-voltage problem in systems where MCUs, FPGAs, and peripherals run on different rails. Key features include the fully configurable dual-rail architecture, 3-state outputs for bus sharing, mixed-mode signal operation (5V-tolerant I/O with reduced supply), and Ioff plus power-up 3-state support that blocks damaging backflow current during partial power-down and hot-insertion events. DIR and OE are referenced to VCCA, simplifying control-logic design. Technically, the device uses two independent supply-referenced port circuits with low-impedance LVC output drivers. The typical data rate of 100 Mbps supports SPI, I2C, UART, and parallel bus translation while preserving signal integrity with up to 15 pF load capacitance. Inputs accept voltages up to 5.5V regardless of supply level. Typical applications include level shifting for SD and SIM card interfaces, sensor and memory modules, 3.3V-to-5V industrial control I/O, and FPGA/CPLD I/O-bank adaptation to external peripherals. Design tip: decouple both VCCA and VCCB with 0.1uF ceramic capacitors placed close to the pins, tie OE to its proper logic level to avoid a 3-state bus at power-up, and set DIR according to data flow direction. Prices as of 2026-08-30.
SN74LVC8T245QPWRQ1 - 8-Bit Auto Level Shifter | Texas Instruments
The Texas Instruments SN74LVC8T245QPWRQ1 is an automotive-grade, 8-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs, supplied in a 24-pin TSSOP (PW) package. It is AEC-Q100 qualified for operation from -40C to +125C, making it suited for harsh automotive and industrial environments. A dual-supply bus transceiver is a logic component that moves data between two digital buses operating at different voltage levels. In the power-management and signal-chain hierarchy, it belongs to the level-translator family within the broader logic IC category. The SN74LVC8T245-Q1 uses two independent supply rails, VCCA and VCCB, each operable from 1.65V to 5.5V, enabling bidirectional translation between any two voltage domains, such as 1.8V MCUs communicating with 3.3V or 5V peripherals. Key features include direction-controlled (DIR) and output-enable (OE) pins supplied by VCCA, 3-state outputs for bus sharing, Ioff and power-up 3-state support for hot-insertion safety, and 5.5V-tolerant inputs. The device transmits data from A to B when B-port outputs are active, and from B to A otherwise, supporting asynchronous two-way bus communication with configurable translation on every bit. Architecturally, the device belongs to the TI LVC (Low-Voltage CMOS) family and the Widebus+ 8-bit format, combining fast propagation times at 3.3V with robust mixed-mode signal operation on all ports. Data-sheet-level design freedom comes from independent VCCA/VCCB pinout ordering, which simplifies PCB routing between voltage domains. Typical applications include automotive body and gateway ECUs translating MCU GPIO to CAN/LIN transceiver logic levels, infotainment and display module bus isolation, and industrial PLC I/O modules interfacing 3.3V controllers with 5V sensors. The 3-state outputs let multiple transceivers share one bus without contention. Design tip: tie OE high or low through a pull resistor at power-up to prevent bus contention, since the control pins are referenced to VCCA; ensure VCCA ramps before the uncontrolled bus is driven. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Pricing shown as of 2026-09-01.
SN74LVT244APWR - 3.3V ABT Octal Buffer/Line Driver | TI
The Texas Instruments SN74LVT244APWR is a 3.3V ABT (Advanced BiCMOS Technology) octal buffer and line driver with 3-state outputs, housed in a 20-pin TSSOP (PW) package. It operates from a 2.7V to 3.6V supply, provides TTL-compatible input thresholds for 5V system interfacing, and is organized as two independent 4-bit buffers with separate output-enable (OE) inputs. A buffer and line driver is a digital logic IC that increases the drive current of a weak signal source so it can fan out to multiple loads or drive long bus lines. Within the semiconductor hierarchy, the SN74LVT244APWR belongs to the logic IC family, specifically buffers, drivers and receivers, under the broad category of integrated circuits. Line drivers sit between a microcontroller or FPGA bus and memory, peripherals, or backplanes, restoring signal integrity and isolating capacitive loading. Key features include non-inverting 3-state outputs that enter high impedance when disabled, allowing multiple devices to share a common bus; separate OE control for each 4-bit element, enabling half-width bus operation; LVT-speed propagation delays suited for address/data buffering; and 5V-tolerant TTL-level input logic so a 3.3V device can interface with legacy 5V systems. Technically, the ABT/LVT BiCMOS process combines the low static power of CMOS inputs with the high output drive of bipolar transistors, delivering strong sink and source current with fast edge rates while keeping supply current low in the static state. Typical applications include 8-bit address/data bus buffering in embedded systems, memory interface isolation, backplane line driving in industrial control, and 3.3V-to-5V TTL signal translation in mixed-voltage designs. Design consideration: tie unused OE inputs to VCC to guarantee outputs are enabled, and use short ground returns to limit ground bounce from fast bipolar output edges. This page synthesizes distributor availability, drop-in alternatives, pinout, and practical design notes not consolidated in the manufacturer datasheet.
SN74LVTH16374-EP - 3.3V 16-Bit D Flip-Flop EP | Texas Instruments
The Texas Instruments SN74LVTH16374-EP is an Enhanced Product (EP) version of the 3.3-V ABT 16-bit edge-triggered D-type flip-flop with 3-state outputs. Designed for low-voltage 3.3-V VCC operation, the device provides TTL-level interface capability to 5-V system environments, making it well suited for defense, aerospace, and medical applications. It integrates sixteen positive-edge-triggered D-type flip-flops with common clock (CP) and output-enable (OE) controls in a space-saving 48-pin SSOP/TSSOP-style surface-mount package. 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.
SN74LVTH245APW - 3.3V ABT Octal Bus Transceiver TSSOP-20 | TI
The Texas Instruments SN74LVTH245APW is a 3.3-V ABT octal bus transceiver with 3-state outputs, packaged in a 20-pin TSSOP (PW). It contains eight non-inverting bidirectional buffers with direction-control (DIR) and output-enable (OE) pins, operating across a VCC range of 2.7V to 3.6V with TTL-compatible inputs and outputs that interface cleanly to 5V systems. A bus transceiver (also known as a bus driver/receiver pair, octal transceiver, or bidirectional buffer) is a digital logic device that converts and bridges signals between two buses while providing 3-state isolation. In the system hierarchy, transceivers sit between microprocessors and peripherals: transceiver -> bus driver -> buffer/driver -> logic IC -> integrated circuit. The bidirectional architecture allows data to flow in either direction on a shared data path, making bus transceivers fundamental building blocks in any system that needs to multiplex or isolate parallel buses. Key features of the SN74LVTH245APW include support for live insertion through Ioff and power-up 3-state, hot-insertion capability, bus-hold on data inputs (eliminates external pull-up resistors), and typical VOLP (output ground bounce) performance under 0.8V at 25°C with VCC = 3.3V. The device supports unregulated battery operation down to 2.7V, allowing direct connection to single Li-ion cells or other battery sources without a regulated supply. The SN74LVTH245A family uses TI's ABT (Advanced BiCMOS Technology) process, combining bipolar and CMOS transistors to deliver TTL-compatible voltage thresholds with low static power dissipation. The bus-hold circuitry uses a small active feedback circuit on each I/O pin to retain the last driven logic state, eliminating the need for external pull-up or pull-down resistors on idle or tri-stated lines. The 3-state outputs isolate either bus when disabled, supporting bus multiplexing across multiple sources. Typical applications include point-to-point asynchronous data transfer between data buses in networking switches, memory modules, and embedded CPU/memory expansion boards. The wide VCC range and TTL input compatibility also suit industrial backplane designs, PCI bus interfaces, and 3.3V/5V mixed-voltage systems. The hot-insertion capability makes it suitable for hot-swappable cards and field-replaceable modules. Designers should note that the A-port and B-port pins are not 5V tolerant unless VCC is at least 3.0V; for 5V-only legacy buses, a level shifter such as the SN74LVC4245A should be considered. Place VCC decoupling capacitors of 0.1 µF ceramic as close as possible to the device supply pin, with a bulk 10 µF tantalum or ceramic on the same rail. This page consolidates distributor pricing, drop-in alternatives including both same-brand and cross-brand TSSOP-20 devices, and practical design notes that are not collected in the manufacturer datasheet, giving engineers a single authoritative source for procurement and substitution decisions.
SN74LVTH245APWE4 - 3.3V ABT Octal Bus Transceiver 20-TSSOP | TI
The Texas Instruments SN74LVTH245APWE4 is a 3.3-V Advanced BiCMOS Technology (ABT) octal bus transceiver with 3-state outputs, packaged in a 20-pin TSSOP (PW) and qualified for industrial -40C to +85C operation. It contains 8 non-inverting bidirectional channels organized as 1 element of 8 bits per element, with direction control via the DIR pin and output enable via the active-low OE bar pin. The device supports mixed-mode signal operation, accepting 5-V inputs and producing 5-V tolerant outputs while operating from a 2.7-V to 3.6-V VCC supply. What is an octal bus transceiver? A bus transceiver is a digital logic interface IC that bridges two buses, allowing data to flow in either direction between them. It belongs to the broader family of buffers, drivers, and transceivers within the Logic ICs category, and is commonly used in microcontroller and memory interfaces to isolate bus segments, level-shift signals, or drive heavy capacitive loads. The LVTH sub-family from TI combines low-voltage (3.3-V) CMOS with the high-drive capability of ABT bipolar technology. Key features of the SN74LVTH245APWE4 include bus-hold circuitry on the data inputs (eliminating the need for external pull-up resistors when drivers are tri-stated), typical propagation delay of around 3-4 ns, and Ioff support that allows partial-power-down operation without backfeeding current through the device. The bus-hold cells retain the last driven logic state, which simplifies hot-swap and live-insertion scenarios in modular backplanes and plug-in cards. The SN74LVTH245A family is built on TI's state-of-the-art Advanced BiCMOS Technology (ABT) process, optimized for 3.3-V operation with low static power dissipation. Live insertion is supported, meaning the device can be plugged into a live backplane without disturbing active data on the bus, an important feature for CompactPCI, VME, and ATCA card designs. The high-drive output stage delivers strong edges into heavily loaded buses, which is critical for backplane signal integrity. Typical applications include point-to-point bidirectional data transfer between processors and peripherals, memory-address/data buffering, bus isolation in hot-swappable systems, and level translation between 3.3-V and 5-V logic domains. Designers use this transceiver wherever two busses must communicate bidirectionally with controlled direction and high-impedance isolation, including PC motherboard chipset interfaces and industrial backplanes. When designing with the SN74LVTH245APWE4, note that the DIR input controls data flow direction and OE bar enables or disables the outputs. Unused bus-hold inputs can be left floating, but unused standard inputs should be tied to VCC or GND through a resistor to define the logic state. The exposed thermal pad is not present on the TSSOP-20, so board layout relies on the standard TSSOP land pattern. This page synthesizes distributor pricing, drop-in same-brand TSSOP-20 alternatives, and practical bus-interface design notes that are not consolidated in any single TI datasheet table.
SN74LVTH245APWG4 - 3.3V ABT Octal Bus Transceiver | Texas Instruments
The Texas Instruments SN74LVTH245APWG4 is a 3.3-V ABT (Advanced BiCMOS Technology) octal bus transceiver with 3-state outputs, packaged in a 20-pin TSSOP (PW) package. It provides non-inverting bidirectional data flow between two 8-bit buses, supports mixed-mode operation (5-V input/output with 3.3-V VCC), and is optimized for asynchronous communication between data buses in low-voltage systems. A bus transceiver is a logic IC that connects two buses and selectively drives data in either direction, with 3-state outputs allowing multiple devices to share the same physical bus. In the broader taxonomy, this device belongs to the buffer/driver/transceiver family, which falls under standard logic ICs, which are themselves part of integrated circuits. The LVTH variant uses ABT BiCMOS processes that combine low static power consumption with high drive strength. Key features include bidirectional control via a single DIR pin, low static power dissipation, support for live insertion with Ioff and power-up 3-state (PU3S) circuitry, and 5-V tolerant inputs and outputs when operating from a 3.3-V supply. The device can be used in mixed-voltage systems where 3.3-V logic interfaces with 5-V legacy buses. Its bus-hold feature on the data inputs eliminates the need for external pull-up resistors when the input is not actively driven. The SN74LVTH245A architecture uses BiCMOS output stages for balanced drive strength (typical sink/source of 24 mA / 32 mA at 3.3 V) and TTL-compatible input thresholds. This makes it well-suited for driving heavily loaded backplanes, memory buses, and peripheral interfaces in computing and embedded systems. The wide operating voltage range and unregulated battery operation down to 2.7 V enable portable and battery-powered designs. Typical applications include point-to-point board-to-board interfaces in industrial controllers, memory address/data bus buffering in networking equipment, level translation between 3.3-V and 5-V logic domains, and general-purpose bus isolation in modular embedded designs. The G4 suffix indicates Pb-free (lead-free) packaging per TI's legacy suffix scheme. When designing with this part, ensure the DIR pin is driven to a valid logic level before VCC ramps into the active range to avoid bus contention during power-up. Use series damping resistors on heavily loaded buses to control ringing, and confirm that the load current does not exceed the absolute maximum ratings under worst-case temperature and voltage conditions. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes that supplement the TI datasheet, helping engineers quickly select and source the correct variant for 3.3-V bus-interface designs.
SN74LVTH245APWR - 3.3V ABT Octal Bus Transceiver TSSOP-20 | TI
The Texas Instruments SN74LVTH245APWR is a 3.3-V ABT octal bus transceiver with 3-state outputs, packaged in a 20-pin TSSOP (PW) with 8 bits per element and a non-inverting logic function. It operates across a 2.7 V to 3.6 V VCC range, supports 64 mA drive / 32 mA sink currents per channel, and is designed for asynchronous two-way communication between data buses with TTL-compatible inputs. A bus transceiver is a buffer/driver that electrically interfaces and routes signals between two buses. The 74x245 family is the industry-standard octal bidirectional bus transceiver; the LVT variant adds low-voltage (3.3 V) operation with TTL-compatible input thresholds, enabling direct interface to legacy 5-V TTL logic while running the part on a 3.3-V rail. The '245' family falls under the broader logic IC hierarchy: bus transceiver -> buffer/driver -> interface IC -> standard logic. Key features include bidirectional data flow controlled by a single DIR pin, an active-low OE (output enable) for 3-state output control, partial-power-down capability via Ioff and live-insertion support, bus-hold circuitry on data inputs (eliminates need for external pull-up resistors), and ±24 mA balanced output drive. The device uses TI's Advanced BiCMOS Technology (ABT) for low static power dissipation combined with high switching speed. Typical propagation delay is 3.5 ns (typical) at 3.3 V VCC and 25 °C, making it suitable for moderately fast bus interfaces including PCI, memory buses, and backplane buffering. The TSSOP-20 package provides a compact 6.5 mm x 4.4 mm footprint suitable for high-density PCB designs. Common applications include memory data routing, address/control bus buffering, board-to-board interface in telecom equipment, industrial automation backplanes, and level translation between 3.3 V logic and 5-V TTL inputs. The bus-hold feature is particularly valuable in hot-swap and live-insertion scenarios where floating inputs must be avoided. When designing with this device, ensure DIR is not allowed to float (use a defined logic level via bus-hold or external pull resistor) to prevent bus contention. Decoupling: place a 0.1 µF X7R ceramic capacitor as close as possible to the VCC pin to suppress switching noise. For mixed-voltage designs, confirm that the higher-voltage side does not exceed the absolute maximum ratings of 4.6 V on any input or output. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet to accelerate your 74LVT245 selection.
SSD1681 - 200x200 EPD Display Driver/Controller | Solomon Systech
The Solomon Systech SSD1681 is an Active Matrix Electrophoretic Display (EPD) driver with integrated controller for Red/Black/White e-Paper panels. It delivers 200 source outputs, 200 gate outputs, 1 VCOM and 1 VBD channel, supporting a maximum display resolution of 200x200 pixels at single-chip level. An EPD (Electrophoretic Display) controller is a mixed-signal IC that drives the bistable pigment particles inside an e-Paper panel, generating visible text and graphics without backlight. The controller hierarchy flows: EPD driver -> display driver IC -> flat-panel controller -> mixed-signal semiconductor IC. Because e-Paper pixels are bistable, the SSD1681 only needs to refresh the panel when the displayed image changes, making it the workhorse driver for ultra-low-power electronic shelf labels (ESL), wearables, and IoT indicators. Key features include support for Mono Black/White and 3-color Red/Black/White panels, an embedded charge-pump booster for generating gate driver voltages, on-chip regulators and oscillator, and a hardware-selectable serial peripheral interface (SPI) for MCU command and image data transfer. The integrated DC-DC booster eliminates external high-voltage transistors and minimizes BOM area. Architecturally, the SSD1681 integrates a 200-bit source shift register, a 200-bit gate scan register, 1 VCOM driver, 1 border (VBD) driver, waveform look-up tables (LUTs) for grayscale and color transitions, and an OTP memory for default panel parameters. The internal temperature sensor and SPI command set allow the host to trigger optimal drive waveforms for the connected e-Paper panel. Typical applications include 1.54" and 2.13" e-Paper panels for electronic shelf labels, smart badges, logistics trackers, wearables, IoT sensor displays, and low-power information panels. The SSD1681 is widely adopted on Waveshare, Adafruit and BuyDisplay breakout boards. When designing with this IC, ensure that the host MCU supplies 3.3V logic to VCI/VDDIO and that the VPP/VNN charge-pump capacitors are sized per the panel's voltage sequence. The BUSY_n line must be polled before initiating SPI commands because e-Paper refresh cycles (typically 2 seconds for full update) are long compared to microsecond-scale SPI transactions. This page synthesizes distributor availability, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, delivering unique engineering value beyond what distributor product listings provide.