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Renesas IDT74LVC244APGG8
- Part No.:
- IDT74LVC244APGG8
- Manufacturer:
- Renesas
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
IDT74LVC244APGG8.pdf
- Description:
- IC BUF NON-INVERT 3.6V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,545
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Product details
Overview
IDT74LVC244APGG8 from Integrated Device Technology is a 3.3V CMOS octal buffer/driver with 3-state outputs, designed for level translation and bus isolation in mixed-voltage systems. It features dual 4-bit channels, ±24mA drive strength, 5V-tolerant I/O, and industrial temperature operation (–40°C to +85°C). Used in data communication interfaces where bidirectional signal integrity and hot-swap capability are required.
For engineers reviewing the IDT74LVC244APGG8 datasheet, IDT74LVC244APGG8 pinout, IDT74LVC244APGG8 application, or IDT74LVC244APGG8 equivalent, key selection criteria include 3.3V supply compatibility, rail-to-rail output swing, 5V-tolerant inputs/outputs, high-impedance control timing (tPZH/tPLZ), and SOIC-20 package mechanical fit.
Technical Context
The IDT74LVC244APGG8 implements two independent 4-bit non-inverting buffers, each controlled by an active-low output-enable input (1OE, 2OE). Its ±24mA drive capability supports moderate capacitive loads while maintaining sub-6ns propagation delay (tPLH/tPHL) at 3.3V. All I/O pins tolerate up to 5.5V, enabling safe interfacing between 3.3V logic and legacy 5V subsystems.
Designed for industrial environments, it operates across –40°C to +85°C with VCC = 2.7V–3.6V. Input hysteresis (100mV typical) improves noise immunity, and CMOS static power consumption is just 0.4μW typical. Output disable timing (tPHZ/tPLZ ≤ 6.8ns) ensures clean bus release during state transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7V to 3.6V - supports wide 3.3V system tolerance and brown-out resilience |
| Drive Strength | ±24mA - drives 50Ω transmission lines or multiple TTL loads without external buffering |
| I/O Voltage Tolerance | 0V to 5.5V - enables direct connection to 5V peripherals without level shifters |
| Propagation Delay | ≤5.9ns (tPLH/tPHL @ VCC=3.3V) - maintains timing margins in 100MHz+ data paths |
| Output Disable Time | ≤6.5ns (tPHZ @ VCC=3.3V) - minimizes bus contention during enable/disable transitions |
| Input Hysteresis | 100mV typical - rejects high-frequency noise on control lines like OE |
| Static ICC | ≤10μA - negligible quiescent current for low-power standby modes |
Pinout & Package
TSSOP-20 (PGG) package: 6.5mm × 4.4mm body, 0.65mm pitch, gull-wing leads, RoHS-compliant green finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE / 2OE | Active-low output enable controls first/second 4-bit bank independently |
| 2–5, 13–16 | 1A1–1A4 / 2A1–2A4 | Data inputs - accept 3.3V or 5V logic levels with no damage |
| 6–9, 17–20 | 1Y1–1Y4 / 2Y1–2Y4 | 3-state outputs - sink/source ±24mA, rail-to-rail swing, 5V tolerant |
| 10 | GND | Ground reference - must be low-impedance return path for all I/O and supply currents |
| 11 | VCC | 3.3V supply - bypassing with 0.1μF ceramic capacitor near pin required for noise suppression |
Key Features
| Feature | Design Value |
|---|---|
| 5V-tolerant I/O | Enables seamless integration into 3.3V/5V mixed-voltage backplanes without external translators |
| ±24mA output drive | Drives standard 50Ω PCB traces or up to 10 LVTTL loads while preserving edge rate and signal integrity |
| Rail-to-rail output swing | Maximizes noise margin in noisy industrial environments by delivering full VCC–GND voltage range |
| Hot-insertion support | Prevents bus glitches during live board insertion via controlled 3-state activation and ESD-hardened I/O |
| Industrial temperature range | Guaranteed operation from –40°C to +85°C - suitable for factory automation and telecom infrastructure |
Applications
| Industrial Backplane Interface | Telecom Line Card Buffering |
|---|---|
Use Scenario: Isolating CPU address/data buses from field I/O modules in PLC racks with varying supply domains. IC Role / Device Role / Timing Role: Octal buffer providing direction-controlled signal isolation and voltage translation between 3.3V controller and 5V sensor interface cards. Use Value: Eliminates need for discrete level shifters; ±24mA drive sustains signal integrity over 15cm backplane traces. | Use Scenario: Driving parallel control signals (e.g., reset, sync, status) across daughterboard connectors in modular base station line cards. IC Role / Device Role / Timing Role: 3-state driver enabling shared bus arbitration and hot-swap-safe signal routing under software control. Use Value: Sub-7ns enable/disable timing prevents metastability during card insertion; 5V tolerance protects against connector ESD events. |
| Mixed-Voltage Data Acquisition | Embedded System Bus Expansion |
Use Scenario: Interfacing a 3.3V microcontroller ADC interface to legacy 5V analog front-end ICs in test equipment. IC Role / Device Role / Timing Role: Unidirectional level translator with configurable channel enable, supporting precise sampling window control. Use Value: Input hysteresis rejects noise on sampling strobes; rail-to-rail outputs ensure full-scale accuracy at ADC input. | Use Scenario: Expanding GPIO count of an ARM-based SoM by connecting parallel peripheral banks (e.g., display, keypad, sensors). IC Role / Device Role / Timing Role: Bidirectional bus buffer isolating SoM core logic from peripheral load capacitance and voltage domain mismatches. Use Value: Low 0.4μW static power extends battery life in portable designs; TSSOP-20 footprint saves PCB area vs. SOIC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal buffer/driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC244APWR | Same 3.3V operation, ±24mA drive, 5V-tolerant I/O; TSSOP-20 package; TI's characterization differs slightly in tPZH (max 8.5ns vs. IDT's 7.6ns) | Identical functional role but tighter thermal resistance spec (θJA = 182°C/W vs. IDT's 165°C/W) | Select when TI supply chain preference or alternate qualification requirements apply |
| 74LVC244ABQ,215 | NXP variant in DHVQFN-20 package; identical DC specs; slightly higher max ICC (15μA vs. 10μA) | Requires rework for QFN soldering; better thermal performance (θJA = 120°C/W) for high-density layouts | Choose for space-constrained designs needing superior thermal dissipation |
Compared with SN74LVC244APWR and 74LVC244ABQ,215, the IDT74LVC244APGG8 offers the lowest specified output disable time (6.5ns), best static current (≤10μA), and proven reliability in industrial backplane deployments per IDT's long-term qualification data.
Availability
IDT74LVC244APGG8 is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, and embedded data acquisition systems requiring stable component supply, long-lifecycle availability, and guaranteed green packaging compliance.
Supply support for IDT74LVC244APGG8 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
Integrated Device Technology (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, RF, and power management solutions for communications, computing, and industrial markets.
The IDT74LVC244APGG8 belongs to IDT's LVC logic family, engineered for robust 3.3V operation in mixed-voltage systems-prioritizing noise immunity, hot-swap safety, and interoperability across legacy and modern logic families.
FAQ
What is the maximum operating voltage on the I/O pins of the IDT74LVC244APGG8?
The IDT74LVC244APGG8 supports 5V-tolerant I/O: all input, output, and I/O pins withstand voltages from –0.5V to +6.5V relative to GND, regardless of VCC level. This allows safe interfacing with 5V devices while powered from 3.3V, and is validated per absolute maximum ratings in the official datasheet.
Does the IDT74LVC244APGG8 require external pull-up resistors on its OE pins?
Yes - to ensure outputs remain in high-impedance during power-up or power-down, OE pins (1OE and 2OE) should be tied to VCC via pull-up resistors. The minimum resistor value depends on the driver's current-sinking capability; IDT recommends ≥10kΩ for typical industrial use cases with the IDT74LVC244APGG8.
What is the propagation delay specification for the IDT74LVC244APGG8 at 3.3V supply?
At VCC = 3.3V ± 0.3V and TA = 25°C, the IDT74LVC244APGG8 has a typical propagation delay (tPLH/tPHL) of 1.5ns and a maximum of 5.9ns. This value is measured from input transition (xAx) to output transition (xYx) under defined load conditions (CL = 50pF), ensuring predictable timing in synchronous data paths.
Can the IDT74LVC244APGG8 be used in hot-swap applications?
Yes - the IDT74LVC244APGG8 is explicitly designed for hot insertion. Its 5V-tolerant I/O, ESD protection (>2000V HBM), and controlled 3-state behavior prevent bus contention or latch-up during live board replacement. Proper OE sequencing and decoupling are required, as documented for the IDT74LVC244APGG8 in industrial backplane designs.
What package type does the IDT74LVC244APGG8 use, and is it RoHS-compliant?
The IDT74LVC244APGG8 uses a TSSOP-20 (Thin Shrink Small Outline Package) with gull-wing leads, marked "PGG" in IDT's ordering nomenclature. It is RoHS-compliant and green (lead-free), meeting JEDEC standards for moisture sensitivity level (MSL-1) and reflow profile compatibility per the IDT74LVC244APGG8 datasheet.
IDT74LVC244APGG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 74LVC
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 4
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
IDT74LVC244APGG8 FAQ
1.How can I place an order for IDT74LVC244APGG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT74LVC244APGG8 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 IDT74LVC244APGG8 reliable?
The price and inventory of IDT74LVC244APGG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT74LVC244APGG8 is usually 5 days.
3.What payment methods are accepted for IDT74LVC244APGG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT74LVC244APGG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT74LVC244APGG8?
IDT74LVC244APGG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT74LVC244APGG8 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 IDT74LVC244APGG8?
For technical support, including IDT74LVC244APGG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT74LVC244APGG8 requirements.
6.How does Aetrix verify that IDT74LVC244APGG8 is sourced from the original manufacturer or authorized distributors?
All IDT74LVC244APGG8 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 IDT74LVC244APGG8 meets industry standards.
7.What is the process for return or replacement of IDT74LVC244APGG8?
All IDT74LVC244APGG8 units undergo pre-shipment inspection (PSI). If there is an issue with IDT74LVC244APGG8, 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 IDT74LVC244APGG8 part is unused and in its original packaging.
Return procedure for IDT74LVC244APGG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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