My Inquiry
My Account
Texas Instruments SN74ALVCH16244DGGR
- Part No.:
- SN74ALVCH16244DGGR
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
SN74ALVCH16244DGGR.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,804
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74ALVCH16244DGGR from Texas Instruments is a 16-bit non-inverting 3-state buffer/driver IC operating from 1.65 V to 3.6 V, delivering ±24-mA output drive at 3.3 V with 3 ns max propagation delay, used in memory address buffering, clock distribution, and bus interface applications.
For engineers reviewing the SN74ALVCH16244DGGR datasheet, SN74ALVCH16244DGGR pinout, SN74ALVCH16244DGGR application, or SN74ALVCH16244DGGR equivalent, key selection criteria include voltage range compatibility (1.65–3.6 V), bus-hold input retention, TSSOP-48 package footprint, and 3-state output control timing.
Technical Context
This device implements four independent 4-bit buffers with symmetrical active-low output-enable (OE) inputs per group (1OE–4OE), supporting flexible partitioning as one 16-bit, two 8-bit, or four 4-bit buffers. All inputs feature integrated bus-hold circuitry eliminating external pullup/pulldown resistors.
It operates across industrial temperature range (–40°C to +85°C) with latch-up immunity exceeding 250 mA per JESD 17 and ESD protection rated at 2000-V HBM and 200-V MM. Input thresholds scale with VCC, ensuring robust logic-level translation across 1.65–3.6 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.65 V to 3.6 V - enables direct interfacing with 1.8-V, 2.5-V, and 3.3-V logic domains without level shifters. |
| Max Propagation Delay | 3 ns at 3.3 V - supports high-speed data path timing in memory and clock driver applications. |
| Output Drive Strength | ±24 mA at 3.3 V - drives heavy capacitive loads or multiple CMOS inputs without signal degradation. |
| Bus-Hold Current | ±75 µA at 3 V - maintains stable logic state on unused inputs, preventing floating-node oscillation. |
| Input/Output Capacitance | 6 pF (input), 7 pF (output) - minimizes loading on upstream drivers and downstream receivers. |
| Quiescent Current | 40 µA at 3.6 V - ensures low static power consumption in always-on system interfaces. |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded and communications equipment. |
Pinout & Package
TSSOP-48 (DGG) package: 12.4 mm × 6.1 mm × 1.2 mm body, 0.5-mm lead pitch, JEDEC MO-153 compliant, surface-mount compatible with standard reflow profiles (MSL Level-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE–4OE | Active-low output enable | Independent control per 4-bit group; must be tied to VCC via pullup during power-up to ensure Hi-Z default state. |
| 1A1–4A4 | Data inputs | 16 buffered inputs with bus-hold; no external biasing required even when unconnected. |
| 1Y1–4Y4 | True outputs | Non-inverting 3-state outputs; high-impedance when corresponding OE is high. |
| VCC, GND | Power terminals | Four VCC and six GND pins distributed across package to reduce switching noise and improve PSRR. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | 1.65–3.6 V operation allows single-supply interoperability across mixed-voltage systems. |
| Integrated Bus-Hold | Eliminates need for 10-kΩ external pullup/pulldown resistors on all 16 inputs, reducing BOM count and board area. |
| High-Speed Performance | 3 ns tpd at 3.3 V enables use in sub-333-MHz clock domains without timing closure issues. |
| Robust ESD/Latch-Up | 2000-V HBM and >250-mA latch-up immunity support reliable operation in noisy industrial environments. |
| Thermal Efficiency | θJA = 70°C/W (TSSOP) enables sustained 24-mA drive without thermal derating in typical PCB layouts. |
Applications
| Memory Address Buffering | Clock Distribution Network |
|---|---|
Use Scenario: Driving address lines from a microcontroller to multiple SRAM or Flash devices sharing a common bus. IC Role / Device Role / Timing Role: 16-bit non-inverting buffer isolating controller outputs while providing current gain and noise margin. Use Value: Prevents address skew and signal integrity loss across parallel traces, enabling reliable multi-chip memory access at up to 333 MHz. | Use Scenario: Distributing a single system clock to multiple synchronous peripherals (e.g., ADC, DAC, FPGA config logic). IC Role / Device Role / Timing Role: Low-skew, high-drive clock fanout buffer with 3-state capability for dynamic clock gating. Use Value: Maintains <3 ns inter-output skew and drives >15 pF load per output, eliminating need for discrete transistor buffers. |
| PCI/ISA Bus Interface | Industrial I/O Expansion |
Use Scenario: Isolating legacy PCI or ISA bus signals between host processor and add-in cards with differing voltage rails. IC Role / Device Role / Timing Role: Bidirectional bus transceiver replacement using grouped 3-state enables for direction control. Use Value: Supports hot-plug-compatible Hi-Z isolation and 1.8–3.3 V logic translation without external level shifters. | Use Scenario: Expanding GPIO count on PLC or motor controller MCU by buffering digital I/O to field sensors and actuators. IC Role / Device Role / Timing Role: Robust 16-bit I/O expander with bus-hold inputs tolerating long cable runs and EMI-prone environments. Use Value: Eliminates contact bounce-induced glitches and reduces firmware polling overhead via stable input retention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16244ADGGR | Lower drive (±24 mA only at 3.3 V; ≤±16 mA at 2.5 V), no bus-hold, identical pinout. | Suitable where input biasing is handled externally or inputs are always driven. | Select when cost sensitivity outweighs bus-hold convenience and mixed-voltage operation is limited to 3.3 V. |
| 74AVC16244DGG | Wider voltage range (1.2–3.6 V), higher speed (2.2 ns tpd), no bus-hold, same package. | Better for ultra-low-voltage (1.2–1.5 V) SoC interfaces but requires external biasing. | Choose for next-gen low-power designs needing sub-2.5 V operation and tighter timing margins. |
Compared with SN74ALVCH16244DGGR, SN74LVC16244ADGGR offers lower cost but forfeits bus-hold and mixed-voltage flexibility, while 74AVC16244DGG extends voltage range downward but increases design complexity with mandatory external biasing.
Availability
SN74ALVCH16244DGGR is available at Aetrix Electronics and suitable for memory subsystems, clock tree distribution, and industrial I/O expansion requiring stable component supply and long-term industrial lifecycle support.
Supply support for SN74ALVCH16244DGGR 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 connectivity technologies with over 50 years of innovation in high-reliability logic and interface solutions.
The SN74ALVCH16244DGGR belongs to TI's Widebus™ family-designed specifically to improve density and performance of 3-state memory address drivers, clock drivers, and bus-oriented receivers/transmitters.
FAQ
What is the recommended power-up sequence for SN74ALVCH16244DGGR?
TI specifies that OE inputs must be held high (Hi-Z state) during power-up to prevent output contention. Tie each OE pin to VCC through a pullup resistor (minimum value determined by driver sink capability); do not leave OE floating. This ensures all outputs remain in high-impedance until system initialization completes. The SN74ALVCH16244DGGR datasheet confirms this behavior applies across its full –40°C to +85°C operating range.
Does SN74ALVCH16244DGGR support mixed-voltage operation between input and output sides?
No-SN74ALVCH16244DGGR is a single-supply device with all I/O referenced to the same VCC rail (1.65–3.6 V). It does not provide level-shifting functionality. Inputs and outputs operate at the same voltage domain. For true mixed-voltage translation, external level shifters or dual-supply devices like TXB0108 are required. The SN74ALVCH16244DGGR specification explicitly defines VI and VO ranges relative to VCC only.
How does the bus-hold circuitry in SN74ALVCH16244DGGR affect input leakage current?
The bus-hold circuitry in SN74ALVCH16244DGGR draws ±75 µA at 3 V (per input) to maintain the last-valid logic state. This is significantly higher than standard CMOS input leakage (<5 µA), so it must be accounted for in ultra-low-power designs. However, it eliminates the need for external 10-kΩ pullup/pulldown resistors, reducing total system leakage in most industrial applications. The SN74ALVCH16244DGGR datasheet provides exact II(hold) values across VCC conditions.
Can SN74ALVCH16244DGGR be used as a level shifter between 1.8-V and 3.3-V logic?
No-SN74ALVCH16244DGGR cannot perform bidirectional level shifting. While it operates from 1.8 V to 3.3 V, all inputs and outputs share the same VCC reference. Driving a 1.8-V input with a 3.3-V signal violates absolute maximum ratings (VI max = VCC + 0.5 V). For 1.8-V ↔ 3.3-V translation, dedicated level shifters such as TXS0108E or SN74AVC4T245 are required. The SN74ALVCH16244DGGR datasheet prohibits exceeding VI limits under any condition.
What is the thermal resistance (θJA) of SN74ALVCH16244DGGR in its TSSOP-48 package?
The junction-to-ambient thermal resistance (θJA) for SN74ALVCH16244DGGR in the DGG (TSSOP-48) package is 70°C/W, as specified in the Absolute Maximum Ratings table of the official TI datasheet (SCES014K). This value assumes standard JEDEC 2-layer board conditions. Layout improvements-such as adding thermal vias under the exposed pad (if present) or increasing copper area-can reduce effective θJA, but the baseline rating remains 70°C/W for design margining. The SN74ALVCH16244DGGR thermal performance is validated per JESD 51-7.
SN74ALVCH16244DGGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ALVCH
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 4
- Number of Bits per Element:
- 4
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
SN74ALVCH16244DGGR FAQ
1.How can I place an order for SN74ALVCH16244DGGR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ALVCH16244DGGR 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 SN74ALVCH16244DGGR reliable?
The price and inventory of SN74ALVCH16244DGGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ALVCH16244DGGR is usually 5 days.
3.What payment methods are accepted for SN74ALVCH16244DGGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ALVCH16244DGGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74ALVCH16244DGGR?
SN74ALVCH16244DGGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ALVCH16244DGGR 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 SN74ALVCH16244DGGR?
For technical support, including SN74ALVCH16244DGGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ALVCH16244DGGR requirements.
6.How does Aetrix verify that SN74ALVCH16244DGGR is sourced from the original manufacturer or authorized distributors?
All SN74ALVCH16244DGGR 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 SN74ALVCH16244DGGR meets industry standards.
7.What is the process for return or replacement of SN74ALVCH16244DGGR?
All SN74ALVCH16244DGGR units undergo pre-shipment inspection (PSI). If there is an issue with SN74ALVCH16244DGGR, 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 SN74ALVCH16244DGGR part is unused and in its original packaging.
Return procedure for SN74ALVCH16244DGGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74ALVCH16244DGGR Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
