74LS190 DIP IC

🔹 74LS190 DIP IC – Synchronous 4-Bit Decade Up/Down Counter (SN74LS190N)

The SN74LS190N is a synchronous, presettable, 4-bit decade (BCD) up/down counter with separate clock inputs for up and down counting. It features asynchronous parallel load, ripple clock and borrow outputs for easy cascading, and is fully compatible with TTL logic levels.

✅ Specifications:

• Part Number: SN74LS190N

• Logic Family: 74LS (Low-Power Schottky TTL)

• Function: Synchronous 4-bit Decade (BCD) Up/Down Counter

• Package: 16-pin DIP (PDIP)

• Supply Voltage (Vcc): 4.75V – 5.25V

• Clock Frequency: 25MHz (typical)

• Count Sequence: 0,1,2,3,4,5,6,7,8,9 (BCD)

• Inputs: Count Up (CKU), Count Down (CKD), Load, Reset (MR), 4 Data Inputs (A-D)

• Outputs: 4 Q outputs, Ripple Clock (RC), Borrow (TC)

• Operating Temperature: 0°C to 70°C

📦 Features:
✔️ Synchronous decade up/down counting
✔️ Separate clock inputs for up and down
✔️ Asynchronous parallel load (active LOW)
✔️ Asynchronous master reset (active HIGH)
✔️ Ripple clock and borrow outputs for cascading
✔️ Presettable to any BCD value
✔️ Fully static operation

📦 Applications:
✔️ BCD counters and frequency dividers
✔️ Decade timers and pulse counters
✔️ Industrial process control (BCD display)
✔️ Digital clocks and stopwatches
✔️ Cascaded multi-stage counting systems
✔️ Microcontroller peripheral expansion
✔️ Educational digital logic projects