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Product Detailed Parameters
- Description：IC BUS-INTERFACE LATCH 56-TSSOP
- Series：74ALVCH
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Logic Type：D-Type Transparent Latch
- Circuit：10:10
- Output Type：Tri-State
- Voltage - Supply：1.65V ~ 3.6V
- Independent Circuits：2
- Delay Time - Propagation：1ns
- Current - Output High, Low：24mA, 24mA
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：56-TFSOP (0.240", 6.10mm Width)
- Supplier Device Package：56-TSSOP
- Grade：-
- Qualification：-
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Overview
The SN74ALVCH16841DGGR is a 20-bit universal bus latch manufactured by Texas Instruments. It operates within a supply voltage range of 1.65 V to 3.6 V and utilizes the ALVCH logic series. The device features three-state outputs and is housed in a TSSOP-56 package. It supports an operating temperature range from -40°C to +85°C. The component includes bus-holding inputs to eliminate the need for external pull-up or pull-down resistors.
Feature Summary
- Configurable as two 10-bit latches or one 20-bit latch
- Bus-holding inputs prevent floating states without external components
- Designed for driving large capacitive loads
Applications
- Data bus latch buffering between processors and peripherals
- Unidirectional parallel data transmission
- Expansion I/O port interfacing
- Temporary data register storage
Procurement Notes
Verify the specific suffix DGGR against official datasheets to confirm the TSSOP-56 package and reel packaging configuration. Ensure compatibility with the required 1.65 V to 3.6 V supply voltage range and check for RoHS compliance status prior to integration into the design.
Selection Notes
Select this component when a high-density 20-bit latch solution is required for low-voltage systems. The ALVCH series offers performance suitable for driving heavy loads. Confirm that the TSSOP-56 footprint fits the PCB layout constraints and that the thermal characteristics meet the operational environment requirements.
Part Context
This part belongs to the SN74ALVCH168xx family of universal bus functions. These devices are designed for high-speed, low-power applications requiring robust drive capabilities. The family supports various configurations for bus holding and tri-state control, making them versatile for complex digital interface designs.
Replacement Considerations
Check for direct pin-compatible alternatives within the same ALVCH family. Verify electrical specifications such as output current and propagation delay if substituting with other manufacturers' parts.
