Features:

1. Six Hex Inverters
2. Outputs Directly Interface to CMOS, NMOS, and TTL
3. Large Operating Voltage Range
4. Wide Operating Conditions

Features:

1. Two Independent J-K Flip-Flops
2. Positive Edge Triggered Flip-Flop
3. Operating Temperature to 70°C
4. Standard TTL Switching Voltages
5. Superseded, Not Recommended for New Designs

Specifications:-

1. Part number: 74LS109
2. Technology: Family LS
3. VCC (Min) (V): 75
4. VCC (Max) (V): 25
5. Bits (#): 2
6. Voltage (Nom) (V): 5
7. F @ nom voltage (Max) (MHz):35
8. ICC @ nom voltage (Max)(mA): 15
9. tpd @ nom Voltage (Max) (ns) :35
10. IOL (Max) (mA): 8
11. IOH (Max) (mA): -0.4

Specification:

• Product type: Binary Decade Counter IC
• IC number: 7490
• Technology: CMOS
• Logic family: 74 series
• Number of pins: 14
• Pin type: through hole
• Package: PDIP-14 tube type
• Package contains: 1 x 7490 IC