PAL16R6B Registered Programmable Array Logic DIP-20 (PAL16R6B DIP IC)
The PAL16R6B is a high-speed, registered Programmable Array Logic (PAL) device manufactured using advanced bipolar Schottky process technology. This IC features a programmable AND array followed by a fixed OR array, with six of its eight outputs equipped with D-type registers (flip-flops). This architecture allows the implementation of complex sequential logic circuits and state machines in a single chip. The "B" version is characterized by its high-speed performance, offering faster propagation and clock-to-output times compared to standard PAL devices.
This IC is primarily used in state machines, high-speed counters, and registered logic for microprocessor systems. It is a specialized component for advanced electronics projects in India involving legacy digital hardware restoration, high-performance glue logic, and educational studies of synchronous sequential logic.
Key Features
- High-speed bipolar Schottky construction
- Six internal D-type flip-flops for registered outputs
- Programmable AND array for custom logic implementation
- 8 dedicated inputs, 6 registered outputs, and 2 combinatorial I/O pins
- Individual output enable control
- High noise immunity and stable performance
- Standard 20-pin DIP package for through-hole mounting
- Security fuse feature to protect custom logic designs
Specifications
- IC Type = Registered Programmable Array Logic (PAL)
- Propagation Delay = 15ns (Maximum for B series)
- Clock to Output Delay = 10ns (Maximum)
- Supply Voltage (VCC) = 4.75V to 5.25V (5V Typical)
- Supply Current (ICC) = 180mA (Maximum)
- Logic Family = TTL Compatible
- Package Type = Plastic DIP
- Number of Pins = 20
- Mounting Type = Through-Hole
- Operating Temperature = 0 to 75 degrees Celsius
Interfaces
- PIN 1 (CLK) = Clock Input for Registers
- PIN 2 to 9 (I) = Dedicated Inputs
- PIN 10 (GND) = Ground (0V)
- PIN 11 (OE) = Output Enable (Active Low)
- PIN 12, 19 (IO) = Combinatorial Bidirectional I/O Pins
- PIN 13 to 18 (Q) = Registered Outputs (Active Low)
- PIN 20 (VCC) = Positive Supply Voltage (5V)
