CD4508 Dual 4-Bit Latch DIP-24 (CD4508 DIP IC)
The CD4508 is a high-voltage CMOS integrated circuit containing two identical, independent 4-bit storage latches. Each latch features individual strobe, master reset, and output enable controls, providing 8 bits of total data storage with 3-state outputs for efficient bus interfacing.
This IC is primarily used for temporary data storage, digital signal buffering, and memory expansion in complex logic systems. It is a vital component for Arduino electronics projects in India requiring multi-bit data holding or multiplexed bus communication between microcontrollers and peripherals.
Key Features
- Dual 4-bit independent latching circuits
- 3-state outputs for direct connection to system buses
- Individual Master Reset for each 4-bit section
- Separate Strobe and Output Enable controls
- High-voltage CMOS technology for superior noise immunity
- Wide operating supply voltage range
- Low power consumption typical of 4000 series logic
- Standardized symmetrical output characteristics
Specifications
- IC Type = Dual 4-Bit Latch
- Logic Family = CD4000
- Supply Voltage = 3V to 18V
- Package Type = DIP
- Number of Pins = 24
- Mounting Type = Through-Hole
- Propagation Delay = 140ns at 5V
- Operating Temperature = -55 to 125 degrees Celsius
Interfaces
- D0A-D3A = Data Inputs for Latch A
- D0B-D3B = Data Inputs for Latch B
- Q0A-Q3A = 3-State Outputs for Latch A
- Q0B-Q3B = 3-State Outputs for Latch B
- ST-A, ST-B = Strobe Inputs for A and B
- OE-A, OE-B = Output Enable (Active Low)
- MR-A, MR-B = Master Reset (Active High)
- VSS = Ground (0V)
- VDD = Positive Supply Voltage
