SN74AHCT595DBR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Shift Register
• Characteristics: High-Speed, CMOS Logic, 8-Bit Serial-In, Parallel-Out
• Package: SSOP-16
• Essence: Serial to Parallel Data Conversion
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 100 MHz
• Maximum Data Rate: 100 Mbps
• Number of Outputs: 8

Detailed Pin Configuration

The SN74AHCT595DBR has a total of 16 pins, which are arranged as follows:

1. SER (Serial Data Input)
2. RCLK (Register Clock Input)
3. SRCLK (Shift Register Clock Input)
4. OE (Output Enable Input)
5. GND (Ground)
6. QH' (Serial Output)
7. QA (Parallel Output A)
8. QB (Parallel Output B)
9. QC (Parallel Output C)
10. QD (Parallel Output D)
11. QE (Parallel Output E)
12. QF (Parallel Output F)
13. QG (Parallel Output G)
14. QH (Parallel Output H)
15. VCC (Supply Voltage)
16. SRCLR (Shift Register Clear Input)

Functional Features

• Serial-to-Parallel Conversion: The SN74AHCT595DBR can convert serial data into parallel output.
• Cascadable: Multiple devices can be connected in series to expand the number of outputs.
• Output Enable Control: The OE pin allows for enabling or disabling the outputs.
• Shift Register Clear: The SRCLR pin resets the shift register to its initial state.

Advantages and Disadvantages

Advantages: - High-Speed Operation: The SN74AHCT595DBR can operate at a clock frequency of up to 100 MHz. - CMOS Logic: Provides low power consumption and high noise immunity. - Compact Package: The SSOP-16 package offers space-saving benefits.

Disadvantages: - Limited Output Count: The device has only 8 parallel outputs, which may be insufficient for certain applications. - Temperature Limitations: The operating temperature range is limited to -40°C to +85°C.

Working Principles

The SN74AHCT595DBR is a CMOS-based shift register IC. It receives serial data through the SER pin and shifts it into an internal shift register on each rising edge of the SRCLK input. The data is then transferred to the parallel output registers on the rising edge of the RCLK input. The outputs can be enabled or disabled using the OE pin. The SRCLR pin clears the shift register when activated.

Detailed Application Field Plans

The SN74AHCT595DBR is commonly used in various applications, including:

1. LED Matrix Displays: The shift register's parallel outputs can control individual LEDs in a matrix display.
2. Serial Data Expansion: It can be used to expand the number of available digital inputs/outputs in microcontroller-based systems.
3. Data Storage: The shift register can store data temporarily before being processed by other components.
4. Address Decoding: It can be utilized in address decoding circuits for memory or peripheral devices.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the SN74AHCT595DBR are:

1. 74HC595: This is a popular alternative from the 74HC series, offering compatibility with a wide range of microcontrollers.
2. CD4094: A shift register IC with similar features, but in a different package (DIP-16).
3. TPIC6B595: This device is designed specifically for driving high-current loads such as LEDs or relays.

These alternative models can be considered based on specific requirements and compatibility with existing systems.

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