SN74S1051NSR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Shifter
• Characteristics: High-speed, bidirectional voltage level translation
• Package: 16-pin Small Outline Integrated Circuit (SOIC)
• Essence: Translates logic signals between different voltage levels
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2.3V to 5.5V
• Logic Voltage Levels: 1.8V to 5V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 4.5ns (typical)
• Output Drive Capability: ±24mA
• Input Capacitance: 3pF (typical)

Detailed Pin Configuration

The SN74S1051NSR has a 16-pin SOIC package with the following pin configuration:

1. VCCA: Positive supply voltage for A side
2. B1: Input/output pin for B side
3. B2: Input/output pin for B side
4. GND: Ground
5. A1: Input/output pin for A side
6. A2: Input/output pin for A side
7. OE: Output enable
8. VCCB: Positive supply voltage for B side
9. B3: Input/output pin for B side
10. B4: Input/output pin for B side
11. GND: Ground
12. A3: Input/output pin for A side
13. A4: Input/output pin for A side
14. NC: No connection
15. B5: Input/output pin for B side
16. B6: Input/output pin for B side

Functional Features

• Bidirectional voltage level translation between two logic systems
• Automatic direction control based on input/output voltage levels
• High-speed operation for time-critical applications
• Low power consumption
• Schmitt-trigger inputs for noise immunity

Advantages and Disadvantages

Advantages

• Enables seamless communication between different voltage domains
• Supports a wide range of supply and logic voltage levels
• Compact package size for space-constrained designs
• Fast propagation delay for high-speed applications
• Robust design with built-in protection features

Disadvantages

• Limited number of I/O pins (6 per side)
• Not suitable for level shifting between very low and very high voltage levels
• May require additional external components for specific applications

Working Principles

The SN74S1051NSR is designed to translate logic signals between different voltage levels. It operates by monitoring the input voltage levels on both sides (A and B) and automatically adjusting the direction of signal flow. When the input voltage on side A is higher than the input voltage on side B, the device translates signals from A to B. Conversely, when the input voltage on side B is higher, it translates signals from B to A.

The device utilizes a combination of level shifters and control circuitry to achieve bidirectional voltage level translation. It employs Schmitt-trigger inputs to provide noise immunity and ensure reliable operation in noisy environments.

Detailed Application Field Plans

The SN74S1051NSR can be used in various applications that require voltage level translation between different logic systems. Some potential application fields include:

1. Microcontroller interfacing with different voltage peripherals
2. Communication interfaces between devices operating at different voltage levels
3. Sensor networks requiring level shifting for compatibility
4. Industrial automation systems with mixed voltage logic circuits
5. Battery-powered devices with multiple voltage domains

Detailed and Complete Alternative Models

1. SN74LVC1T45DBVR: Single-bit dual-supply bus transceiver
2. TXB0104PWR: 4-bit bidirectional voltage-level translator
3. PCA9306DCUR: Dual bidirectional I2C-bus and SMBus voltage-level translator
4. CD40109BE: Quad level shifter for TTL-to-CMOS or CMOS-to-TTL applications
5. TXS0108EPWR: 8-bit bidirectional voltage-level translator with automatic direction control

These alternative models offer similar functionality and can be considered as alternatives to the SN74S1051NSR based on specific application requirements.

In conclusion, the SN74S1051NSR is a high-speed logic level shifter that enables seamless voltage level translation between different logic systems. With its compact package, wide supply voltage range, and bidirectional operation, it finds applications in various fields requiring reliable and efficient level shifting.