SN74AHC594PW

Product Overview

• Category: Integrated Circuit (IC)
• Use: Shift Register
• Characteristics: High-speed, low-power consumption
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Serial-in, parallel-out shift register with output latches
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2 V to 5.5 V
• Input Voltage Range: 0 V to VCC
• Output Voltage Range: 0 V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 100 MHz
• Number of Stages: 8
• Output Current: ±6 mA

Detailed Pin Configuration

1. SER (Serial Data Input)
2. SRCLK (Shift Register Clock Input)
3. RCLK (Register Clock Input)
4. OE (Output Enable Input)
5. QH' (Serial Data Output)
6. QA-QH (Parallel Data Outputs)
7. GND (Ground)
8. VCC (Supply Voltage)

Functional Features

• Serial-in, parallel-out operation
• Output latches for holding data
• High-speed shifting and latching
• Low power consumption
• Wide supply voltage range
• Compatible with TTL and CMOS logic levels

Advantages

• High-speed operation allows for quick data transfer
• Low power consumption helps in reducing energy usage
• Wide supply voltage range provides flexibility in different applications
• Compatibility with TTL and CMOS logic levels ensures easy integration into existing systems

Disadvantages

• Limited number of stages (8) may not be sufficient for complex applications requiring more outputs
• TSSOP package may be challenging to solder for inexperienced users

Working Principles

The SN74AHC594PW is a shift register that allows serial data to be inputted and then shifted out in parallel. The SER pin receives the serial data, which is then shifted through the register stages on each rising edge of the SRCLK input. The RCLK input latches the shifted data into the output registers. The OE pin enables or disables the outputs. The QH' pin provides the serial data output, while QA-QH pins provide the parallel data outputs.

Detailed Application Field Plans

The SN74AHC594PW can be used in various applications, including:

1. LED Displays: The shift register can control multiple LEDs by providing parallel output signals to drive individual LED segments.
2. Serial-to-Parallel Conversion: It can convert serial data streams into parallel data for further processing in microcontrollers or other digital systems.
3. Data Storage: The output latches allow for temporary storage of data before it is processed or transmitted.

Detailed and Complete Alternative Models

1. 74HC595: Similar shift register with 8 stages and output latches, but available in different package options such as DIP (Dual Inline Package).
2. CD4094: Another shift register with similar functionality, but with 8 stages and additional features like data cascading.

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