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Nexperia USA Inc. 74ALVCH162244DL,11
- Part No.:
- 74ALVCH162244DL,11
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
74ALVCH162244DL,11.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,326
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Product details
Overview
74ALVCH162244DL,11 from Nexperia is a 16-bit CMOS buffer/line driver with integrated 30 Ω termination resistors, bus hold inputs, and four independent 3-state output enables (1OE–4OE). It operates from 1.2 V to 3.6 V, supports partial power-down via IOFF, and delivers propagation delay as low as 2.7 ns at 3.3 V - enabling high-speed parallel bus interfacing in industrial control backplanes.
For engineers reviewing the 74ALVCH162244DL,11 datasheet, 74ALVCH162244DL,11 pinout, 74ALVCH162244DL,11 application, or 74ALVCH162244DL,11 equivalent, this device serves as a drop-in replacement for legacy ALVC/ALVT buffers in DDR memory subsystems, FPGA I/O expansion, and hot-swap-capable peripheral interconnects where bus stability and low-noise drive are critical.
Technical Context
This device implements a quad 4-bit flow-through architecture with fully independent enable controls per group, allowing selective activation of 4-, 8-, or 16-bit data paths without internal contention. Each output stage integrates a 30 Ω series termination resistor matched to typical PCB trace impedances, reducing signal reflections on stub-loaded buses.
The IOFF circuit actively disables outputs during power-down, blocking reverse current flow between powered and unpowered rails - a requirement for JESD78 Class II Level B latch-up immunity and safe multi-rail system sequencing. Bus hold inputs maintain last-valid logic state when inputs float, eliminating external pull resistors in point-to-point or daisy-chained topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 1.2 V to 3.6 V - supports direct interface with 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters. |
| Propagation delay | 2.7 ns typical at VCC = 3.3 V - enables >350 MHz data rates on 16-bit parallel buses with CL = 30 pF. |
| Output termination | 30 Ω series resistor per output - matches standard FR-4 microstrip impedance, minimizing overshoot/ringing without external components. |
| IOFF protection | Active during VCC = 0 V - prevents destructive backflow current when one side of a bus is powered down while the other remains active. |
| Bus hold current | ±75 μA at VCC = 3.0 V - maintains stable HIGH/LOW states on floating inputs without external biasing. |
| Operating temperature | −40 °C to +85 °C - qualified for industrial-grade embedded systems including programmable logic controllers and motor drives. |
| ESD rating | HBM >2000 V, CDM >1000 V - withstands handling and board-level ESD events common in automated assembly environments. |
Pinout & Package
TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm lead pitch - optimized for high-density PCB layouts with low inductance VCC/GND pin distribution.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE (Pins 1, 48, 25, 24) | Active-low output enable | Each controls 4 outputs independently - enables flexible bus segmentation and power-gated I/O groups. |
| 1A0–1A3, 2A0–2A3, 3A0–3A3, 4A0–4A3 (Pins 47,46,44,43,41,40,38,37,36,35,33,32,30,29,27,26) | Data inputs | All inputs feature bus hold - eliminates need for external pull-ups/pull-downs in unterminated or high-impedance configurations. |
| 1Y0–1Y3, 2Y0–2Y3, 3Y0–3Y3, 4Y0–4Y3 (Pins 2,3,5,6,8,9,11,12,13,14,16,17,19,20,22,23) | 3-state buffered outputs | Each includes integrated 30 Ω series termination - reduces PCB component count and improves signal integrity on long traces. |
| VCC (Pins 7, 18, 31, 42) | Power supply | Four distributed VCC pins minimize supply inductance and reduce ground bounce in high-speed switching. |
| GND (Pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight GND pins provide low-impedance return paths - critical for noise suppression in multi-bit parallel interfaces. |
Key Features
| Feature | Design Value |
|---|---|
| MULTIBYTE™ flow-through pinout | Input-output alignment minimizes trace length and skew across all 16 bits - essential for timing-critical memory and FPGA interfaces. |
| Integrated 30 Ω termination | Eliminates 16 discrete series resistors, saving >20 mm² PCB area and removing solder joint reliability risks in high-vibration environments. |
| IOFF partial power-down | Enables safe hot-plug operation in modular systems where backplane slots may be powered independently of host logic. |
| Bus hold on all inputs | Reduces BOM cost and layout complexity by replacing 16 external pull resistors - especially valuable in space-constrained IoT edge nodes. |
| JEDEC-compliant voltage ranges | Validated for JESD8-7 (1.65–1.95 V), JESD8-5 (2.3–2.7 V), and JESD8C (2.7–3.6 V) - ensures interoperability across mixed-voltage SoC designs. |
Applications
| DDR Memory Interface | FPGA I/O Expansion |
|---|---|
|
Use Scenario: Driving address/control lines from an FPGA to DDR2/DDR3 SDRAM modules with stubbed routing. IC Role / Device Role / Timing Role: Bidirectional buffer with controlled slew and on-die termination - manages signal integrity across multiple load points on shared bus segments. Use Value: 30 Ω series termination suppresses reflections caused by unterminated stubs, enabling reliable 400+ Mbps operation without external RC networks. |
Use Scenario: Extending FPGA GPIO banks to connect to off-board peripherals (ADCs, DACs, sensors) via ribbon cable or flex PCB. IC Role / Device Role / Timing Role: Unidirectional level-shifting buffer with bus hold - maintains valid logic states during cable disconnect/reconnect sequences. Use Value: Bus hold eliminates floating input states during hot-swap events, preventing spurious writes or configuration errors in field-deployed equipment. |
| Industrial Backplane Interconnect | Hot-Swap Peripheral Module |
|
Use Scenario: Isolating CPU bus signals across a 100 mm backplane with multiple daughter cards. IC Role / Device Role / Timing Role: Low-skew 16-bit repeater with independent OE control - segments bus traffic and limits fault propagation between slots. Use Value: Four independent OE pins allow dynamic disabling of individual card sections during diagnostics or firmware updates - no system reset required. |
Use Scenario: Enabling/disabling power to a PCIe add-in card or USB hub module while main system remains operational. IC Role / Device Role / Timing Role: IOFF-enabled buffer - blocks current flow between powered host and unpowered peripheral during insertion/removal. Use Value: Prevents damaging backfeed currents that could corrupt host controller registers or damage power management ICs during live insertion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVCH162244DGGR | Same function and pinout; TI version uses different thermal pad design and JEDEC MO-153 variant. | Identical bus hold and termination specs; slightly higher max ICC (120 mA vs. 100 mA). | Select if sourcing from TI-authorized channels or requiring TI-specific qualification documentation. |
| 74LVC162244APAG | No integrated 30 Ω termination; requires external series resistors for signal integrity. | Lacks IOFF - not suitable for partial power-down systems; lower max VCC (3.6 V only). | Choose only for cost-sensitive designs where termination is handled externally and full power cycling is guaranteed. |
Compared with SN74ALVCH162244DGGR, the 74ALVCH162244DL,11 offers tighter IOFF leakage control and superior HBM ESD rating; versus 74LVC162244APAG, it eliminates 16 external resistors and enables true hot-swap capability - directly reducing BOM count and system-level validation effort.
Availability
74ALVCH162244DL,11 is available at Aetrix Electronics and suitable for industrial backplanes, FPGA I/O expansion, DDR memory subsystems, and hot-swap peripheral modules requiring stable component supply across extended product lifecycles.
Supply support for 74ALVCH162244DL,11 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability logic, analog, and MOSFET solutions - serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.
The 74ALVCH series targets high-speed, low-power parallel interface applications in space-constrained industrial and communications equipment - emphasizing signal integrity, bus stability, and robustness under mixed-voltage operation.
FAQ
Does 74ALVCH162244DL,11 support 1.8 V operation?
Yes - the device is fully specified from 1.2 V to 3.6 V, with guaranteed performance at 1.8 V including VIH/VIL thresholds, propagation delay (≤4.9 ns), and bus hold functionality. Static characteristics tables confirm operation across JESD8-7 (1.65–1.95 V) compliance.
Can the 30 Ω termination resistors be bypassed?
No - the 30 Ω resistors are monolithically integrated into each output path and cannot be disabled or shorted. They are permanently part of the output driver structure and contribute to the specified VOH/VOL levels and tpd values.
What is the maximum capacitive load this device can drive?
The device is characterized up to 50 pF load capacitance (CL), with tpd and tdis values specified at both CL = 30 pF and CL = 50 pF. Driving loads beyond 50 pF may increase propagation delay and reduce noise margin - verify timing margins using the CPD-based dynamic power formula in Section 10.
How does IOFF behave when VCC = 0 V?
When VCC drops to 0 V, the IOFF circuit forces all outputs into high-impedance state regardless of OE pin state, and blocks current flow from any driven output line into the device - measured clamp current is ≤±50 mA per IOK specification in Table 4.
74ALVCH162244DL,11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74ALVCH
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 12mA, 12mA
- Voltage - Supply:
- 1.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
74ALVCH162244DL,11 FAQ
1.How can I place an order for 74ALVCH162244DL,11 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVCH162244DL,11 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 74ALVCH162244DL,11 reliable?
The price and inventory of 74ALVCH162244DL,11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVCH162244DL,11 is usually 5 days.
3.What payment methods are accepted for 74ALVCH162244DL,11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVCH162244DL,11 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ALVCH162244DL,11?
74ALVCH162244DL,11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVCH162244DL,11 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 74ALVCH162244DL,11?
For technical support, including 74ALVCH162244DL,11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVCH162244DL,11 requirements.
6.How does Aetrix verify that 74ALVCH162244DL,11 is sourced from the original manufacturer or authorized distributors?
All 74ALVCH162244DL,11 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 74ALVCH162244DL,11 meets industry standards.
7.What is the process for return or replacement of 74ALVCH162244DL,11?
All 74ALVCH162244DL,11 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVCH162244DL,11, 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 74ALVCH162244DL,11 part is unused and in its original packaging.
Return procedure for 74ALVCH162244DL,11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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