CD40105 4-Bit x 16-Word FIFO Register DIP-16 (CD40105 DIP IC)
The CD40105 is a high-voltage CMOS First-In-First-Out (FIFO) storage register that can store up to 16 4-bit words. It features independent read and write operations, allowing data to be entered and removed at different rates, which effectively buffers data between asynchronous systems.
This IC is primarily used as a data buffer to interface between digital systems with different operating speeds, such as a slow peripheral and a fast microcontroller. It is an excellent choice for Arduino electronics projects in India involving data logging, communication buffering, and real-time signal processing.
Key Features
- 4-bit by 16-word storage capacity
- Independent asynchronous inputs and outputs
- Automatic data ripple-through from input to output
- Expandable in both word size and stack depth
- Status indicators for "Input Ready" and "Output Ready"
- High-voltage CMOS technology for high noise immunity
- Low power consumption typical of 4000 series logic
- 3-state outputs for direct bus connection
Specifications
- IC Type = FIFO Register
- Logic Family = CD4000
- Supply Voltage = 3V to 18V
- Package Type = DIP
- Number of Pins = 16
- Mounting Type = Through-Hole
- Propagation Delay = 160ns at 5V
- Operating Temperature = -55 to 125 degrees Celsius
Interfaces
- D0-D3 = Data Inputs
- Q0-Q3 = 3-State Data Outputs
- SI = Shift-In Input
- SO = Shift-Out Input
- IR = Input Ready Status Output
- OR = Output Ready Status Output
- MR = Master Reset (Active High)
- VSS = Ground (0V)
- VDD = Positive Supply Voltage
