8 BIT SIPO SHIFT REGISTER The **M74HC251RM13TR** is a high-speed CMOS logic IC manufactured by **STMicroelectronics (STM)**. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** STMicroelectronics (STM)
- **Part Number:** M74HC251RM13TR
- **Category:** Logic - Signal Switches, Multiplexers, Decoders
- **Technology:** High-Speed CMOS (HC)
- **Supply Voltage Range:** 2V to 6V
- **Operating Temperature Range:** -40°C to +125°C
- **Package:** SO-16 (Small Outline, 16-pin)
- **Mounting Type:** Surface Mount
- **Logic Type:** 8-Input Multiplexer
- **Number of Inputs:** 8 (Data Inputs) + 3 (Select Inputs)
- **Output Type:** Tri-State (3-State Output)
- **Propagation Delay:** Typically 13ns at 5V
- **Current Consumption:** Low power consumption (HC family)
### **Descriptions:**
- The **M74HC251RM13TR** is an **8-input multiplexer** with a **3-state output**, designed for high-speed digital applications.
- It selects one of eight data inputs (D0-D7) based on the three select inputs (S0, S1, S2) and routes it to the output (Y).
- The **output enable (OE) pin** controls the tri-state output, allowing multiple devices to share a common bus.
- It is compatible with **TTL** levels and operates over a wide voltage range (2V to 6V).
### **Features:**
- **High-Speed Operation:** Optimized for fast switching applications.
- **Low Power Consumption:** Typical of HC CMOS technology.
- **Wide Operating Voltage:** Supports 2V to 6V, making it versatile for different logic levels.
- **Tri-State Output:** Allows bus sharing in multi-device systems.
- **Balanced Propagation Delays:** Ensures reliable timing performance.
- **ESD Protection:** Improved robustness against electrostatic discharge.
This information is based solely on the manufacturer's datasheet and technical documentation.
