SN74ALVCH162373 - 16-Bit Transparent Latch | Texas Instruments
MPN: SN74ALVCH162373 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.5 | $1.50 |
| 10 | $1.35 | $13.50 |
| 100 | $1.2 | $120.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.93 | $930.00 |
Drop-in alternatives for SN74ALVCH162373 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
SN74ALVCH162373DL
β Drop-Inπ Reference alternative (not in catalog)
SN74ALVCH162373GR
β Drop-Inπ Reference alternative (not in catalog)
SN74ALVCH162373KR
β Drop-Inπ Reference alternative (not in catalog)
74ALVCH162373GRE4
β Drop-Inπ Reference alternative (not in catalog)
SN74ALVCH162374GR
β‘ Same Packageπ Reference alternative (not in catalog)
SN74ALVCH162373 Maximum Ratings & Electrical Characteristics
| Supply Voltage Range | 2.3 V to 3.6 V |
| Number of Channels | 2 |
| Number of Bits per Channel | 8 |
| Logic Family | ALVCH |
| Output Type | 3-State |
| Propagation Delay Time | 4.1 ns at 3.3 V |
| Output Current | Β±12 mA at 3.3 V |
| Latch-Up Performance | Exceeds 250 mA per JESD 17 |
| ESD Protection | Per JESD 22 |
| Bus Hold | Yes |
| Series Resistors | Equivalent 26 Ξ© on outputs |
| Operating Temperature Range | -40Β°C to 85Β°C |
| Package Options | 48-pin SSOP (DL), 56-pin BGA (KR), 48-pin TSSOP (GR) |
| RoHS Status | Compliant |
| Mounting Type | Surface Mount |
SN74ALVCH162373 Pin Configuration
| Pin 1 | 1OE β Output enable for latch 1 (active low) |
| Pin 2 | 1D1 β Data input 1 for latch 1 |
| Pin 3 | 1D2 β Data input 2 for latch 1 |
| Pin 4 | 1D3 β Data input 3 for latch 1 |
| Pin 5 | 1D4 β Data input 4 for latch 1 |
| Pin 6 | 1D5 β Data input 5 for latch 1 |
| Pin 7 | 1D6 β Data input 6 for latch 1 |
| Pin 8 | 1D7 β Data input 7 for latch 1 |
| Pin 9 | 1D8 β Data input 8 for latch 1 |
| Pin 10 | GND β Ground |
| Pin 11 | 1LE β Latch enable for latch 1 (active high) |
| Pin 12 | 1Q1 β Output 1 for latch 1 |
| Pin 13 | 1Q2 β Output 2 for latch 1 |
| Pin 14 | 1Q3 β Output 3 for latch 1 |
| Pin 15 | 1Q4 β Output 4 for latch 1 |
| Pin 16 | 1Q5 β Output 5 for latch 1 |
| Pin 17 | 1Q6 β Output 6 for latch 1 |
| Pin 18 | 1Q7 β Output 7 for latch 1 |
| Pin 19 | 1Q8 β Output 8 for latch 1 |
| Pin 20 | VCC β Power supply |
| Pin 21 | 2OE β Output enable for latch 2 (active low) |
| Pin 22 | 2D1 β Data input 1 for latch 2 |
| Pin 23 | 2D2 β Data input 2 for latch 2 |
| Pin 24 | 2D3 β Data input 3 for latch 2 |
| Pin 25 | 2D4 β Data input 4 for latch 2 |
| Pin 26 | 2D5 β Data input 5 for latch 2 |
| Pin 27 | 2D6 β Data input 6 for latch 2 |
| Pin 28 | 2D7 β Data input 7 for latch 2 |
| Pin 29 | 2D8 β Data input 8 for latch 2 |
| Pin 30 | GND β Ground |
| Pin 31 | 2LE β Latch enable for latch 2 (active high) |
| Pin 32 | 2Q1 β Output 1 for latch 2 |
| Pin 33 | 2Q2 β Output 2 for latch 2 |
| Pin 34 | 2Q3 β Output 3 for latch 2 |
| Pin 35 | 2Q4 β Output 4 for latch 2 |
| Pin 36 | 2Q5 β Output 5 for latch 2 |
| Pin 37 | 2Q6 β Output 6 for latch 2 |
| Pin 38 | 2Q7 β Output 7 for latch 2 |
| Pin 39 | 2Q8 β Output 8 for latch 2 |
| Pin 40 | VCC β Power supply |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
SN74ALVCH162373 is suitable for 6 applications: Buffer Registers, I/O Ports, Bidirectional Bus Drivers, Working Registers, Memory Interfaces, Data Acquisition Systems.
Buffer Registers
The SN74ALVCH162373 is ideal for implementing buffer registers in digital systems. Its 16-bit width and 3-state outputs allow it to store and drive data onto a bus. The bus hold feature eliminates external pull-ups, simplifying design. With a propagation delay of 4.1 ns, it supports high-speed data buffering in memory interfaces and data acquisition systems. The low-voltage operation (2.3V to 3.6V) makes it suitable for battery-powered devices.
Recommended
I/O Ports
The SN74ALVCH162373 can be used to implement I/O ports in microcontrollers and FPGAs. Its 3-state outputs allow multiple devices to share a bus, and the latch function holds data when LE is low. The device operates at 2.3V to 3.6V, matching common logic levels. The 26-ohm series resistors on outputs reduce signal reflections, improving signal integrity in high-speed designs. This makes it suitable for general-purpose digital I/O expansion.
Recommended
Bidirectional Bus Drivers
The SN74ALVCH162373 is suitable for bidirectional bus drivers in data communication systems. Its 3-state outputs and latch function enable controlled data flow in both directions. The bus hold feature prevents floating inputs, reducing noise and power consumption. With a typical propagation delay of 4.1 ns, it supports high-speed bus operation. The device is characterized for -40Β°C to 85Β°C, making it suitable for industrial environments.
Recommended
Working Registers
The SN74ALVCH162373 can be used as working registers in digital systems for temporary data storage. Its 16-bit width and latch function allow it to store data from a bus and hold it for processing. The low-voltage operation (2.3V to 3.6V) reduces power consumption in portable devices. The 3-state outputs enable connection to shared buses without contention. This makes it suitable for CPU registers, peripheral interfaces, and data buffers.
Recommended
Memory Interfaces
The SN74ALVCH162373 is commonly used in memory interfaces for address and data latching. Its 16-bit width matches typical memory bus widths, and the 3-state outputs allow multiple memory banks to share a bus. The fast propagation delay (4.1 ns) supports high-speed memory access. The bus hold feature eliminates external pull-ups, reducing component count. The device operates at 2.3V to 3.6V, compatible with DDR and SDRAM logic levels.
Recommended
Data Acquisition Systems
The SN74ALVCH162373 is used in data acquisition systems for latching digital data from ADCs or sensors. Its 16-bit width can store multiple channels of data, and the 3-state outputs allow connection to a microcontroller bus. The low-voltage operation (2.3V to 3.6V) matches modern ADC and MCU logic levels. The bus hold feature prevents floating inputs, improving reliability. The device is characterized for industrial temperature ranges, making it suitable for harsh environments.
Recommended
Recommended Products Summary
Engineering reference data for SN74ALVCH162373 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SN74ALVCH162373DL | SN74ALVCH162373GR | SN74ALVCH162373KR | 74ALVCH162373GRE4 |
|---|---|---|---|---|---|
| Package | 48-TSSOP (GR) | 48-SSOP | 48-TSSOP | 56-BGA | 48-TSSOP |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Supply Voltage Range | 2.3V to 3.6V | 2.3V to 3.6V | 2.3V to 3.6V | 2.3V to 3.6V | 2.3V to 3.6V |
| Propagation Delay | 4.1 ns at 3.3V | 4.1 ns at 3.3V | 4.1 ns at 3.3V | 4.1 ns at 3.3V | 4.1 ns at 3.3V |
| Output Current | Β±12 mA at 3.3V | Β±12 mA at 3.3V | Β±12 mA at 3.3V | Β±12 mA at 3.3V | Β±12 mA at 3.3V |
| Bus Hold | Yes | Yes | Yes | Yes | Yes |
| Series Resistors | 26 Ξ© equivalent | 26 Ξ© equivalent | 26 Ξ© equivalent | 26 Ξ© equivalent | 26 Ξ© equivalent |
| Operating Temperature | -40Β°C to 85Β°C | -40Β°C to 85Β°C | -40Β°C to 85Β°C | -40Β°C to 85Β°C | -40Β°C to 85Β°C |
Key Differentiators
- Bus hold on data inputs (vs SN74ALVCH162374)
- 26-ohm series resistors on outputs (vs SN74ALVCH162374)
- Transparent latch operation (vs SN74ALVCH162374)
Design Notes
Place a 0.1uF decoupling capacitor close to the VCC pin to minimize power supply noise. The SN74ALVCH162373 operates from 2.3V to 3.6V, so ensure the supply is stable and within this range. For high-speed switching, use a low-ESR capacitor and keep traces short.
The SN74ALVCH162373 has 26-ohm series resistors on outputs, which help reduce signal reflections. However, for high-speed signals, ensure proper PCB layout with controlled impedance traces. Keep the latch enable (LE) and output enable (OE) traces short to minimize skew.
The bus hold feature on data inputs eliminates external pull-ups, but if the driving source cannot provide the hold current, the input may float. In such cases, consider using a variant without bus hold or add external resistors. Also, avoid exceeding the maximum input voltage to prevent latch-up.
Compliance Information
RoHS compliant per TI datasheet. Not AEC-Q100 qualified.
