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Renesas IDT74LVC244APGG
- Part No.:
- IDT74LVC244APGG
- Manufacturer:
- Renesas
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
IDT74LVC244APGG.pdf
- Description:
- IC BUF NON-INVERT 3.6V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,702
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Product details
Overview
IDT74LVC244APGG 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 per output, 5V-tolerant I/O, and industrial temperature range (–40°C to +85°C). Used in data communication interfaces where bidirectional voltage translation and high-noise-margin signaling are required.
For engineers reviewing the IDT74LVC244APGG datasheet, IDT74LVC244APGG pinout, IDT74LVC244APGG application, or IDT74LVC244APGG equivalent, key selection criteria include 3.3V supply compatibility, 5V-tolerant inputs/outputs, rail-to-rail swing, ±24mA drive capability, and TSSOP-20 package footprint for space-constrained PCB layouts.
Technical Context
The IDT74LVC244APGG implements two independent 4-bit non-inverting buffers, each controlled by an active-low output-enable (OE) input. Its 0.5µm CMOS process enables low static power (0.4µW typ.) while supporting fast propagation delays (5.9ns max at VCC = 3.3V).
All I/O pins tolerate up to 6.5V, allowing direct interfacing between 3.3V logic and legacy 5V peripherals. Output disable timing (tPZL/tPHZ ≤ 7.6ns) and skew (≤500ps) ensure deterministic bus release and synchronized channel operation in time-critical control paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7V to 3.6V - supports both nominal 3.3V and extended supply tolerance in noisy industrial rails |
| Output Drive | ±24mA - drives moderate capacitive loads (e.g., 50pF buses) without signal degradation |
| I/O Voltage Tolerance | 0V to 6.5V - enables safe interfacing with 5V devices without external level shifters |
| Propagation Delay | 5.9ns max (VCC = 3.3V) - ensures sub-10ns timing margins for 100MHz bus clocking |
| Power Dissipation | 44pF CPD per buffer - predicts dynamic power consumption under 10MHz switching load |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade embedded and telecom equipment |
| Input Leakage | ±5µA max - minimizes current draw on high-impedance control lines (e.g., microcontroller GPIO) |
Pinout & Package
TSSOP-20 package: 4.4mm × 6.5mm body, 0.65mm pitch, gull-wing leads, RoHS-compliant green finish (PGG suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Active-low output enable controls Bank 1 (pins 2–5, 11–14) and Bank 2 (pins 15–18, 20) |
| 2–5, 11–14 | 1A1–1A4, 1Y1–1Y4 | Bank 1 data inputs and corresponding 3-state outputs |
| 15–18, 20 | 2A1–2A4, 2Y1–2Y4 | Bank 2 data inputs and corresponding 3-state outputs |
| 10 | GND | Ground reference for all I/O and internal logic |
| 20 | VCC | Primary 3.3V supply pin - must be decoupled locally to suppress switching noise |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | VOH ≥ VCC – 0.2V and VOL ≤ 0.2V - maximizes noise margin in electrically noisy industrial environments |
| Hot-insertion support | IOFF ≤ ±50µA at VCC = 0V - prevents backfeeding and latch-up during live board insertion |
| 5V-tolerant I/O | VI < 0 or VO < 0 supported with clamp diodes - eliminates need for external protection in mixed-voltage backplanes |
| Low quiescent current | ICCL ≤ 10µA - reduces standby power in always-on telecom line cards and remote sensors |
Applications
| Industrial PLC Backplane Interface | Telecom Line Card Voltage Translation |
|---|---|
Use Scenario: Interfacing 3.3V FPGA I/O banks to legacy 5V sensor modules and actuator drivers on a modular PLC rack. IC Role / Device Role / Timing Role: Bidirectional level translator and bus driver isolating FPGA domain from higher-voltage field-side circuitry. Use Value: Eliminates discrete resistor-divider networks and external MOSFET translators, reducing BOM count and layout area by >40%. | Use Scenario: Driving E1/T1 framing signals between 3.3V DSP processors and 5V line interface units (LIUs) in access concentrators. IC Role / Device Role / Timing Role: High-speed, low-skew buffer enabling clean signal edge integrity across mixed-supply domains. Use Value: Maintains <500ps inter-output skew to preserve bit alignment in 2.048Mbps synchronous serial links. |
| Automotive Diagnostic Gateway | Test Equipment Signal Conditioning |
Use Scenario: Isolating 3.3V microcontroller UART and CAN controller pins from 5V diagnostic port connectors exposed to automotive battery transients. IC Role / Device Role / Timing Role: Robust I/O buffer with ±24mA drive and 6.5V absolute max rating protecting MCU against ESD and load dump events. Use Value: Withstands >2000V HBM ESD and operates reliably over –40°C to +85°C without derating. | Use Scenario: Conditioning digital stimulus signals from 3.3V pattern generators before driving 5V DUTs in automated test fixtures. IC Role / Device Role / Timing Role: Precision-controlled 3-state driver enabling glitch-free signal routing and bus contention avoidance. Use Value: tPZL ≤ 7.6ns ensures rapid bus release, preventing false triggering during multi-channel parallel test sequences. |
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 version has slightly higher ICCZ (15µA vs. 10µA) | Identical functional behavior but different manufacturer qualification - suitable for second-source procurement in TI-centric designs | Select when TI-qualified supply chain or existing TI-based reference designs require drop-in compatibility |
| 74LVC244ABQ,118 | NXP variant in DHVQFN-20 package (2.5mm × 4.5mm); same electrical specs; no leaded option available | Enables ultra-compact PCB layouts where TSSOP footprint is prohibitive; requires rework of solder stencil and inspection criteria | Choose for space-constrained portable test gear or miniaturized industrial controllers where QFN thermal performance is prioritized |
Compared with IDT74LVC244APGG, SN74LVC244APWR offers identical functionality with minor quiescent current variance, while 74LVC244ABQ,118 trades gull-wing leads for smaller QFN packaging - both require validation of PCB layout and thermal management but avoid redesign of logic-level interface architecture.
Availability
IDT74LVC244APGG is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, and automotive diagnostics requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant green packaging.
Supply support for IDT74LVC244APGG 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 ICs for communications and computing markets.
The IDT74LVC244APGG belongs to IDT's LVC logic family, engineered for high-speed, low-power, mixed-voltage system interfacing - particularly targeting industrial control, telecom line cards, and embedded instrumentation where reliability across temperature extremes is critical.
FAQ
What is the maximum operating voltage on the I/O pins of the IDT74LVC244APGG?
The IDT74LVC244APGG supports a terminal voltage range of –0.5V to +6.5V on all I/O pins, confirmed by Absolute Maximum Ratings table. This allows safe connection to 5V signal sources without external clamping, provided VCC remains within 2.7V–3.6V. The device uses integrated clamp diodes to handle overvoltage conditions, making it ideal for mixed-voltage backplane interfaces where the IDT74LVC244APGG serves as a robust translation layer.
Can the IDT74LVC244APGG be used in hot-swap applications?
Yes, the IDT74LVC244APGG supports hot insertion due to its low IOFF leakage (±50µA max at VCC = 0V) and 5V-tolerant I/O structure. When VCC is unpowered, the device presents high-impedance I/O states that prevent backfeeding or latch-up. This behavior is validated in the Absolute Maximum Ratings and DC Electrical Characteristics sections, ensuring safe use in modular systems where the IDT74LVC244APGG may be inserted into live backplanes.
What is the recommended pull-up resistor value for OE pins on the IDT74LVC244APGG?
IDT recommends tying OE to VCC through a pull-up resistor to ensure high-impedance state during power-up. The minimum resistance is determined by the current-sinking capability of the driver - typically ≥10kΩ suffices for most applications. This guidance appears in the "Description" section of the datasheet and applies directly to the IDT74LVC244APGG to prevent bus contention before firmware initializes the enable control lines.
Does the IDT74LVC244APGG support 2.5V operation?
No, the IDT74LVC244APGG is not specified for 2.5V VCC operation. Its normal range is 3.3V ±0.3V (2.7V–3.6V), and DC characteristics are only guaranteed within that window. While some parameters may function at 2.5V, VIH/VIL thresholds and drive strength degrade outside spec - the IDT74LVC244APGG must be operated within its rated VCC range to meet timing, noise margin, and output swing guarantees.
How does the IDT74LVC244APGG compare to standard 74HC244 in mixed-voltage systems?
The IDT74LVC244APGG provides 5V-tolerant I/O and rail-to-rail swing at 3.3V supply, whereas 74HC244 requires 5V VCC and lacks I/O voltage tolerance. This makes the IDT74LVC244APGG suitable for direct interfacing between 3.3V FPGAs and 5V peripherals without level shifters - a capability the 74HC244 cannot deliver. The IDT74LVC244APGG also consumes significantly less static power (0.4µW vs. ~10µW) and offers faster propagation delay (5.9ns vs. ~15ns).
IDT74LVC244APGG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 74LVC
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- 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
IDT74LVC244APGG FAQ
1.How can I place an order for IDT74LVC244APGG through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT74LVC244APGG 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 IDT74LVC244APGG reliable?
The price and inventory of IDT74LVC244APGG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT74LVC244APGG is usually 5 days.
3.What payment methods are accepted for IDT74LVC244APGG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT74LVC244APGG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT74LVC244APGG?
IDT74LVC244APGG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT74LVC244APGG 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 IDT74LVC244APGG?
For technical support, including IDT74LVC244APGG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT74LVC244APGG requirements.
6.How does Aetrix verify that IDT74LVC244APGG is sourced from the original manufacturer or authorized distributors?
All IDT74LVC244APGG 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 IDT74LVC244APGG meets industry standards.
7.What is the process for return or replacement of IDT74LVC244APGG?
All IDT74LVC244APGG units undergo pre-shipment inspection (PSI). If there is an issue with IDT74LVC244APGG, 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 IDT74LVC244APGG part is unused and in its original packaging.
Return procedure for IDT74LVC244APGG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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