Texas Instruments SN74LVC827APWT

Overview

SN74LVC827APWT from Texas Instruments is a 10-bit noninverting buffer/driver with 3-state outputs, designed for 1.65-V to 3.6-V V_CC operation. It features dual active-low output-enable inputs (OE1/OE2), 5.5-V-tolerant inputs, 24-mA output drive at 3.3 V, and a maximum propagation delay of 6.7 ns at 3.3 V - enabling high-speed bus interfacing in mixed-voltage systems such as LED display drivers and telecom backplanes.

For engineers reviewing the SN74LVC827APWT datasheet, SN74LVC827APWT pinout, SN74LVC827APWT application, or SN74LVC827APWT equivalent, key selection criteria include its I_off support for live insertion, ±24-mA drive capability per output, 3.3-V/5-V mixed-mode signal compatibility, and TSSOP-24 package suitability for space-constrained PCB layouts.

Technical Context

The SN74LVC827APWT implements a dual-gated 3-state control architecture: both OE1 and OE2 must be low to enable all ten Y outputs; either high forces all outputs into high-impedance. Its CMOS design supports true data buffering (noninverting) with balanced rise/fall times and rail-to-rail input tolerance up to 5.5 V independent of V_CC.

It integrates I_off circuitry that disables outputs and blocks current flow when V_CC = 0 V, satisfying partial-power-down requirements. Latch-up immunity exceeds 250 mA per JESD 17, and ESD protection meets 2000-V HBM, 1000-V CDM, and 200-V MM standards.

Key Specifications

Pinout & Package

TSSOP-24 package (PW), 7.9 mm × 4.5 mm body size, 0.65-mm lead pitch, 1.2-mm max height, RoHS-compliant NIPDAU finish, MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 10-bit buffer applications.

Compared with SN74LVC244APWR and 74LVC125APW, the SN74LVC827APWT provides exact 10-bit width in a single TSSOP-24 package with dual OE control - reducing component count, PCB area, and inter-device skew in wide-bus applications.

Availability

SN74LVC827APWT is available at Aetrix Electronics and suitable for LED display drivers, telecom backplane interfaces, server memory buffers, and microcontroller I/O expanders requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for SN74LVC827APWT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with over 50 years of innovation in high-reliability digital interface ICs.

The SN74LVC827APWT belongs to TI's LVC logic family - engineered for low-voltage, high-speed, mixed-signal interoperability in industrial, computing, and communications equipment where robustness and signal integrity are critical.

FAQ

What is the maximum operating voltage for SN74LVC827APWT inputs?

The SN74LVC827APWT inputs tolerate up to 5.5 V regardless of V_CC level, enabling direct connection to 5-V sources while operating from 1.65–3.6 V supplies. This specification is verified across –40°C to +125°C and is explicitly stated in Section 7.3 (Recommended Operating Conditions) of the official datasheet. The SN74LVC827APWT leverages this feature to simplify voltage translation in mixed-domain systems without external components.

Does SN74LVC827APWT support hot-swap or live-insertion applications?

Yes, the SN74LVC827APWT supports live insertion via its I_off feature, which disables outputs and limits leakage to <±10 µA when V_CC = 0 V. This prevents damaging current backflow during partial-power-down events. The specification is confirmed in Section 3 (Features) and Section 9.3 (Feature Description) of the datasheet. For reliable hot-swap operation, OE pins should be pulled high via resistors during power-up to ensure outputs remain in high-Z until V_CC stabilizes - a behavior inherent to the SN74LVC827APWT design.

What is the propagation delay of SN74LVC827APWT at 3.3 V?

The maximum propagation delay (t_pd) of the SN74LVC827APWT is 6.7 ns at V_CC = 3.3 V, measured from input to output under loaded conditions (30 pF, ±0.3 V thresholds). This value is specified in Table 7.6 (Switching Characteristics, –40°C to 85°C) and validated across temperature. The SN74LVC827APWT achieves this performance using optimized CMOS gate design, making it suitable for high-speed bus applications up to ~150 MHz where timing margins are tight.

Can SN74LVC827APWT drive LEDs directly?

Yes, the SN74LVC827APWT can drive LEDs directly: each Y output delivers up to 24 mA sink/source at 3.3 V (Section 7.3), sufficient for standard indicator LEDs or low-current segments. Its 5.5-V input tolerance also allows direct interface with 5-V microcontroller GPIOs. However, current-limiting resistors must be used per LED path, and total device current must stay within ±100 mA (Section 7.1 Absolute Maximum Ratings). This capability is confirmed in the "LED Displays" application listing and electrical characterization of the SN74LVC827APWT.

What package type does SN74LVC827APWT use, and what are its key mechanical dimensions?

The SN74LVC827APWT uses a TSSOP-24 (PW) package: 7.9 mm × 4.5 mm body size, 0.65-mm lead pitch, and 1.2-mm maximum height. Pin 1 orientation follows quadrant Q1 per tape-and-reel specifications (Package Materials Information, Aug 2026). These dimensions are standardized per JEDEC MO-153 and verified in TI's PW0024A package outline drawing. The compact TSSOP form factor makes the SN74LVC827APWT ideal for dense PCB layouts where SOIC or SSOP would consume excessive area.