1. Four Independent NAND Gates
2. 14 Pin IC
3. Operating Temperature to 70 C
4. High-Speed Low Power CMOS Type

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 Superseded, Not Recommended for New Designs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

Features :

• Counts binary
• Single down/up count control line
• Count enable control input
• Ripple clock output for cascading
• Asynchronously presettable with load control
•  Parallel outputs
• Cascadable for n-bit applications
• Average propagation delay 20 ns
• Typical clock frequency 25 MHz
• Typical power dissipation 100 mW

Specifications :

• Quadruple S-R Latch
• High-level output voltage: 3.4V
• Low-level output voltage: 0.2V
• High-level output current: -0.8mA
• Low-level output current: 16mA
• Input clamp voltage: -1.5V
• Propagation delay time max: 27ns
• Supply voltage range: 4.75 to 5.25V

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

Specifications :

• It has two clock inputs.
• 4-Bit Binary Counter IC
• The typical Operating Voltage is 5V
• The input clock frequencies are 32MHz and 16MHz.
• The output High and Low voltages are 3.5V and 0.25V.
• This is a 14 pin DIP (Dual in-line) package IC