Texas Instruments SN74AHC1G32DBVR

Overview

SN74AHC1G32DBVR from Texas Instruments is a single 2-input positive-OR gate IC operating from 2 V to 5.5 V, delivering 6.5 ns max propagation delay at 5 V, ±8 mA output drive, and Schmitt-trigger inputs for noise immunity-used in bus interface logic, level translation, and signal conditioning in portable audio and digital TV systems.

For engineers reviewing the SN74AHC1G32DBVR datasheet, SN74AHC1G32DBVR pinout, SN74AHC1G32DBVR application, or SN74AHC1G32DBVR equivalent, this page provides verified functional identity, DBV (SOT-23) package mapping, confirmed 5-pin terminal roles, thermal and switching specs across –40°C to +125°C, and validated alternative logic gates for OR-function replacement.

Technical Context

The SN74AHC1G32DBVR implements a single 2-input positive-OR Boolean function (Y = A + B) using advanced AHC CMOS technology. It features Schmitt-trigger inputs tolerant of slow rise/fall times and operates with rail-to-rail input voltage acceptance up to 5.5 V regardless of VCC setting.

Its low-drive architecture (±8 mA at 5 V) produces controlled edge rates to minimize output ringing, while high-impedance inputs at VCC = 0 V support hot-insertion scenarios. The device is not 3-state; all outputs are push-pull with no enable control.

Key Specifications

Pinout & Package

SN74AHC1G32DBVR is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 2.80 mm (body: 2.90 mm × 1.60 mm), with 1.45 mm max height and JEDEC MO-178 compliance. Pin 1 is located in quadrant Q3 per tape-and-reel orientation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar OR-gate applications.

Compared with SN74AHC1G32DBVR, SN74LVC1G32DBVR offers higher speed but reduced noise immunity, while SN74AUP1G32DBVR trades performance for extreme low-power operation-neither is pin-compatible nor drop-in; both require layout and timing validation.

Availability

SN74AHC1G32DBVR is available at Aetrix Electronics and suitable for AV receivers, portable audio docks, and Blu-ray players requiring stable component supply, industrial temperature operation, and reliable logic-level translation.

Supply support for SN74AHC1G32DBVR 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 decades of experience in high-reliability logic families.

SN74AHC1G32DBVR belongs to the AHC logic family designed for balanced speed, power, and noise immunity in mixed-voltage industrial and consumer electronics.

FAQ

What logic function does the SN74AHC1G32DBVR implement?

The SN74AHC1G32DBVR implements a single 2-input positive-OR Boolean function (Y = A + B) in standard positive logic. It has no enable or 3-state capability-output Y is always driven high or low. Its Schmitt-trigger inputs provide hysteresis for noise rejection, and it accepts input voltages up to 5.5 V regardless of VCC setting. This makes SN74AHC1G32DBVR ideal for simple combinatorial logic in voltage-translating interfaces.

What is the maximum operating temperature for SN74AHC1G32DBVR?

The SN74AHC1G32DBVR is rated for continuous operation from –40°C to +125°C ambient temperature. This extended industrial temperature range is validated per TI's qualification standards and applies to the DBV (SOT-23) package variant. Thermal derating is not required within this range, and the device maintains full electrical specifications-including propagation delay, drive strength, and input thresholds-across the entire span. SN74AHC1G32DBVR thus supports deployment in thermally demanding environments like set-top boxes and automotive infotainment head units.

Does SN74AHC1G32DBVR support 5 V to 3.3 V level translation?

Yes, SN74AHC1G32DBVR supports 5 V to 3.3 V level translation via its overvoltage-tolerant inputs: inputs accept up to 5.5 V even when VCC = 3.3 V, enabling direct connection to 5 V signal sources. The output swings rail-to-rail (0 V to 3.3 V), making SN74AHC1G32DBVR suitable for driving 3.3 V logic inputs. However, it does not translate 3.3 V to 5 V-output high level equals VCC, so a 3.3 V supply yields only a 3.3 V high output. For bidirectional translation, external circuitry or dedicated translators are required.

What is the recommended bypass capacitor for SN74AHC1G32DBVR?

A 0.1 µF ceramic capacitor is recommended directly between the VCC (Pin 5) and GND (Pin 3) pins of SN74AHC1G32DBVR, placed as close as possible to the device. This minimizes high-frequency supply noise and stabilizes local voltage during output transitions. TI's datasheet specifies this value for single-supply logic devices like SN74AHC1G32DBVR. For boards with multiple logic ICs sharing a power rail, adding a bulk 1 µF or 4.7 µF capacitor nearby improves low-frequency regulation-but the 0.1 µF local cap remains mandatory for SN74AHC1G32DBVR's reliable switching behavior.

Is SN74AHC1G32DBVR pin-compatible with other 5-pin logic gates?

No, SN74AHC1G32DBVR is not universally pin-compatible with other 5-pin logic gates-even those in the same SOT-23 (DBV) package. Its pinout (A, B, GND, Y, VCC) differs from common alternatives like inverters (e.g., SN74AHC1G04) or NAND gates (e.g., SN74AHC1G00), which typically assign VCC to Pin 5 but vary input/output placement. Always verify pin functions using Table 4-1 in the SN74AHC1G32DBVR datasheet. Substituting without pinout validation risks incorrect connections, latch-up, or functional failure-SN74AHC1G32DBVR requires design-specific integration.