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Home > Products > Integrated Circuits (ICs) > Logic > Gates and Inverters

Diodes Incorporated PI74STX1G08TEX

Name: PI74STX1G08TEX
Brand: Diodes Incorporated
SKU: PI74STX1G08TEX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PI74STX1G08TEX

Manufacturer:: Diodes Incorporated

Category:: Gates and Inverters

Package:: SC-74A, SOT-753

Datasheet:: PI74STX1G08TEX.pdf

Description:: IC GATE AND 1CH 2-INP SOT23-5

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Product details

Overview

PI74STX1G08TEX from Pericom Semiconductor is a single 2-input AND gate in a 5-pin SOT23 package, operating across 1.65V–5.5V V_CC, with 2.4ns typical propagation delay into 50pF at 5V, ±24mA output drive at 3V, and power-down high-impedance I/O-used in level-shifting logic interfaces for industrial control panels.

For engineers reviewing the PI74STX1G08TEX datasheet, PI74STX1G08TEX pinout, PI74STX1G08TEX application, or PI74STX1G08TEX equivalent, key selection criteria include supply voltage range compatibility, output drive strength under 3V operation, input/output voltage tolerance (–0.5V to +6V), and SOT23 footprint constraints in space-constrained PCB layouts.

Technical Context

This device implements standard positive-logic AND functionality with fully buffered inputs and outputs, supporting mixed-voltage system interfacing due to its wide V_CC range and TTL/CMOS-compatible input thresholds. It features power-down high-impedance I/O states when V_CC = 0V, enabling safe bus sharing without contention.

AC performance is characterized at 1MHz and 10MHz input PRR with defined rise/fall times (tr/tf = 1.8ns or 3ns), and dynamic power consumption is modeled via CPD = 20pF, enabling accurate ICCD estimation using ICCD = CPD × V_CC × f_IN + ICC_static.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	1.65V to 5.5V - supports direct interface between 1.8V, 2.5V, 3.3V, and 5V logic domains
t_PD (typ)	2.4ns into 50pF @ 5V - enables sub-5ns timing-critical path insertion in high-speed control sequencing
I_OH/I_OL	±24mA @ V_CC = 3V - drives multiple 74LVC inputs or small LEDs without external buffers
Input Voltage Range	–0.5V to +6V - withstands transient overshoot and undershoot beyond supply rails during hot-swap or ESD events
Output Drive Capability	±50mA absolute max - defines safe short-circuit current limit for fault-tolerant design margin
Power-Down State	High-impedance I/O when V_CC = 0V - prevents back-driving and signal contention in powered-down subsystems

Pinout & Package

Package: 5-pin SOT23 (Pb-free & Green), 1.6mm × 2.8mm footprint, 1.1mm height, JEDEC MO-178AA compliant.

Pin/Terminal	Circuit Role	Design Meaning
1	AIN	Non-inverting input A - accepts CMOS/TTL logic levels; must be tied HIGH/LOW if unused
2	BIN	Non-inverting input B - electrically identical to AIN; no internal pull-up/down
3	GND	Ground reference - shared return path for all I/O and internal circuitry
4	YOUT	AND output - active-HIGH open-drain compatible only when externally pulled up
5	V_CC	Positive supply - powers internal logic and output stage; decoupling capacitor required

Key Features

Feature	Design Value
High-speed propagation	2.4ns t_PD at 5V enables use in <5MHz clock-domain synchronization paths
Wide V_CC range	1.65V–5.5V allows drop-in replacement across legacy 5V and modern low-voltage embedded systems
Power-down high-Z I/O	Eliminates need for external isolation switches when main supply is off
Pb-free & Green packaging	SOT23-T (top marking B8) meets RoHS 2011/65/EU and JEDEC J-STD-020 reflow profiles

Applications

Industrial PLC I/O Expansion

Automotive Body Control Module

Use Scenario: Adding discrete logic gating to isolate sensor enable signals before feeding into microcontroller GPIOs in modular I/O racks.

IC Role / Device Role / Timing Role: Single-function AND gate performing hardware-level signal qualification prior to MCU sampling.

Use Value: Prevents spurious interrupts from floating or noisy sensor lines by requiring dual-enable confirmation before activation.

Use Scenario: Enabling headlight driver ICs only when both ignition status and ambient light sensor output are asserted.

IC Role / Device Role / Timing Role: Level-translating AND gate interfacing 3.3V MCU outputs with 5V lamp driver enable inputs.

Use Value: Eliminates need for discrete MOSFET level shifters while maintaining <3ns timing margin for safety-critical lighting response.

Medical Infusion Pump UI Logic

POS Terminal Keypad Scan Matrix

Use Scenario: Gating motor enable signals based on simultaneous "start" button press and door-closed sensor confirmation.

IC Role / Device Role / Timing Role: Safety interlock logic element ensuring dual redundant conditions are met before actuation.

Use Value: Provides deterministic, zero-software-latency hardware enforcement of mechanical safety requirements per IEC 62304.

Use Scenario: Decoding row/column intersections in a 4×4 membrane keypad where two scan lines must coincide to register a keypress.

IC Role / Device Role / Timing Role: Combinational logic element generating valid key-detect pulses for microcontroller interrupt input.

Use Value: Reduces firmware polling overhead and eliminates debounce logic in host MCU by delivering clean, synchronized key-event strobes.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 2-input AND gate applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC1G08DBVR	Same SOT23-5 package; 3.3V optimized (1.65–5.5V); t_PD = 3.7ns @ 3.3V, 50pF	Lower drive (±24mA @ 3.3V same, but derated at 1.8V); no power-down high-Z	Select for cost-sensitive 3.3V-only designs where power-down state is not required
NC7SZ08P5X	SC70-5 package; t_PD = 3.5ns @ 3.3V; V_CC = 1.65–5.5V; ±24mA @ 3.3V	Smaller footprint (2.0 × 1.25mm); identical I/O voltage tolerance; no power-down high-Z	Select when board area is constrained and power-down isolation is handled elsewhere

Compared with SN74LVC1G08DBVR and NC7SZ08P5X, PI74STX1G08TEX uniquely provides power-down high-impedance I/O-critical for subsystem power gating-while matching speed and drive at 5V, making it preferred for mixed-rail systems requiring runtime isolation.

Availability

PI74STX1G08TEX is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, medical infusion pump safety interlocks, and POS terminal keypad decoding requiring stable component supply and long-term obsolescence management.

Supply support for PI74STX1G08TEX 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

Pericom Semiconductor was a U.S.-based fabless semiconductor company specializing in high-speed interface, timing, and logic solutions before its acquisition by Diodes Incorporated in 2016.

The PI74STX series targets space-constrained, mixed-voltage digital systems needing fast, robust, and pin-compatible logic gates with enhanced rail-to-rail I/O tolerance and power-aware I/O states.

FAQ

Can PI74STX1G08TEX operate reliably at 1.65V V_CC?

Yes. The device is fully specified down to 1.65V V_CC: propagation delay is 5.0ns (max) at 1.65V/25°C with 50pF load, and input thresholds scale with V_CC (V_IH = 0.7×V_CC, V_IL = 0.3×V_CC). Output drive remains functional though reduced to ±8mA at 1.65V.

What is the maximum capacitive load this AND gate can drive without timing degradation?

The AC Electrical Characteristics table specifies t_PD performance up to 50pF load. At 100pF, propagation delay increases to ~4.2ns (typ) at 5V due to increased RC time constant; for loads >50pF, add series termination or buffer stages to maintain signal integrity and setup/hold margins.

Does PI74STX1G08TEX support hot-swap or live-insertion?

Yes. Its absolute maximum ratings allow –0.5V to +6V on all pins independent of V_CC, and inputs are protected against ±20mA diode current. However, V_CC must be ramped before applying input signals to avoid latch-up; follow Pericom's recommended power-sequence guidelines in AN-302.

Is the SOT23-5 package of PI74STX1G08TEX compatible with standard reflow profiles?

Yes. As a Pb-free & Green device, it complies with JEDEC J-STD-020D moisture sensitivity level 1 (MSL-1) and supports peak reflow temperatures up to 260°C for ≤60 seconds. Recommended profile: ramp-to-peak ≤3°C/s, time above 217°C = 60–150s, peak = 235–245°C for optimal solder joint reliability.

PI74STX1G08TEX Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: 74STX

Package/Case:: SC-74A, SOT-753

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Logic Type:: AND Gate

Number of Circuits:: 1

Number of Inputs:: 2

Features:: -

Voltage - Supply:: 1.65V ~ 5.5V

Current - Quiescent (Max):: 2 µA

Current - Output High, Low:: 32mA, 32mA

Input Logic Level - Low:: -

Input Logic Level - High:: -

Max Propagation Delay @ V, Max CL:: 3.3ns @ 5V, 50pF

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-5

PI74STX1G08TEX FAQ

1.How can I place an order for PI74STX1G08TEX through Aetrix?

Please submit a Request for Quotation (RFQ) for PI74STX1G08TEX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for PI74STX1G08TEX reliable?

The price and inventory of PI74STX1G08TEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI74STX1G08TEX is usually 5 days.

3.What payment methods are accepted for PI74STX1G08TEX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI74STX1G08TEX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PI74STX1G08TEX?

PI74STX1G08TEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PI74STX1G08TEX order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for PI74STX1G08TEX?

For technical support, including PI74STX1G08TEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI74STX1G08TEX requirements.

6.How does Aetrix verify that PI74STX1G08TEX is sourced from the original manufacturer or authorized distributors?

All PI74STX1G08TEX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PI74STX1G08TEX meets industry standards.

7.What is the process for return or replacement of PI74STX1G08TEX?

All PI74STX1G08TEX units undergo pre-shipment inspection (PSI). If there is an issue with PI74STX1G08TEX, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The PI74STX1G08TEX part is unused and in its original packaging.

Return procedure for PI74STX1G08TEX:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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