74HC595AN Shift Register With Latched 3-State Outputs DIP-16

74HC595AN Shift Register is a high-speed 8-bit serial-in, serial or parallel-out shift register with a storage register and 3-state outputs. It allows for data to be shifted in serially and then latched to parallel outputs. This IC is ideal for applications requiring efficient I/O expansion, such as LED control, digital display driving, or general GPIO extension in microcontroller projects.

Key Features:

• 8-bit Shift Register: Serial input to 8-bit parallel output.
• Storage Register: Data is latched separately from shift register.
• 3-State Outputs: Allows cascading and bus sharing.
• High-Speed CMOS: Operates up to 100 MHz with low power consumption.
• Easy Cascading: Q7’ output feeds into next chip’s serial input.

Technical Specifications:

• IC Type: 74HC595AN
• Logic Family: HC (High-Speed CMOS)
• Supply Voltage: 2V to 6V (typically 5V)
• Output Current: ±6mA (per output)
• Operating Frequency: Up to 100 MHz
• Package: DIP-16 (Dual In-Line Package)
• Temperature Range: -40°C to +85°C

Pin Configuration (DIP-16):

• Pin 1: Q1 (Output 1)
• Pin 2: Q2 (Output 2)
• Pin 3: Q3 (Output 3)
• Pin 4: Q4 (Output 4)
• Pin 5: Q5 (Output 5)
• Pin 6: Q6 (Output 6)
• Pin 7: Q7 (Output 7)
• Pin 8: GND
• Pin 9: Q7′ (Serial Out)
• Pin 10: MR (Master Reset, Active Low)
• Pin 11: SHCP (Shift Register Clock Input)
• Pin 12: STCP (Storage Register Clock Input)
• Pin 13: OE (Output Enable, Active Low)
• Pin 14: DS (Serial Data Input)
• Pin 15: Q0 (Output 0)
• Pin 16: VCC

Schematic, Connection and Wiring Notes:

• Serial In: Data is clocked in via DS with SHCP rising edge.
• Latch: STCP latches data to outputs on rising edge.
• Enable: OE must be LOW to activate outputs.
• Chaining: Use Q7’ to chain multiple 74HC595 ICs for extended outputs.

Datasheet and Documentation:

• Download 74HC595AN Datasheet (PDF)

Applications:

• LED Matrix Control: Efficient way to control rows or columns.
• 7-Segment Displays: Drives multiple segments with minimal I/O pins.
• Keypad Matrix Expansion: Adds additional scan lines.
• GPIO Expansion: Adds outputs to microcontrollers like Arduino, ESP32.
• Industrial Interfaces: Reliable digital signal control in automation systems.

Equivalent Models:

• SN74HC595N: Texas Instruments variant, similar specs
• CD4094BE: Serial-in/parallel-out shift register with latch
• HEF4094BP: NXP variant with similar configuration

Package Includes:

• 1 x 1 X 74HC595AN Shift Register With Latched 3-State Outputs DIP-16