74LS258 Quadruple 2-Line to 1-Line Data Selector or Multiplexer IC
74LS260 Dual 5-Input NOR Gate IC
- Dual 5-Input NOR Gate
- Logic Family: LS
- Technology Family: TTL
- Min VCC: 4.75V
- VCC (Max): 5.25V
- Number of Gates: 2
- High Level Output Current: - 0.4 mA
- Low Level Output Current: 8 mA
- Number of Lines In/Out: 5 / 1
- Propagation Delay Time: 12 ns at 5 V
- Supply Voltage Range: 4.75V to 5.25V
- Package: DIP14
- Output type: Push-Pull
- Max Speed: (TPD 10-50ns)
- Max Data rate: 70Mbps
- Low Power Requirements
- Standard TTL Switching Voltages
- Operating temperature range: 0°C to 70°C
74LS27 Triple 3-Input NOR Gate IC
- Triple 3-Input NOR Gate
- Max Supply Voltage 7V
- Max Input Voltage 7V
- TTL outputs
- Maximum ESD: 3.5KV
- Typical Rise Time: 15ns
- Typical Fall Time: 15ns
- High-level input voltage: 2V
- Low-level input voltage: 0.8V
- High-level output current: -0.4mA
- Low-level output current: 8mA
- of gates: 3
- of inputs: 9
- of outputs: 3
- Propagation delay time: 18ns
- Package: DIP-14
- Operating voltage range: +4.75V to +5.25V
- Low power consumption
- Operating Free Air Temperature Range 0°C to +70°C
- Storage Temperature Range -65°C to +150°C
74LS28 Quad 2-Input NOR Buffer IC
74LS280 9 Bit Odd or Even Parity Generator or Checker IC
- 9 Bit Odd or Even Parity Generator or  Checker
- Supply Voltage Range:Â 4.75V to 5.25V
- Supply Current Max.:Â 27mA
- HIGH Level Input Voltage Min.:Â 2V
- LOW Level Input Voltage Max.:Â 0.8V
- HIGH Level Output Voltage Min.:Â 2.7V
- LOW Level Output Voltage Max.:Â 0.5V
- High level Output Current Max.:Â -0.4mA
- Low level Output Current Max.:Â 8mA
- Input Clamp Voltage Max.:Â -1.5V
- Propagation Delay Time Max.:Â 50ns
- Typical Power Dissipation:Â 80mW
- Package:Â DIP-14
74LS290 4-Bit Binary Counter IC
- Decade Counter; 4-bit Binary Counter
- High-level input voltage:Â 2V
- Low-level input voltage:Â 0.8V
- High-level output current:Â -0.4mA
- Low-level output current:Â 8mA
- Input clamp voltage:Â -1.5V
- Maximum clock frequency:Â 32MHz
- Propagation delay time max:Â 18ns
- Power Consumption:Â 45mW
- Supply voltage range:Â 4.75 to 5.25V
- Package:Â DIP-14
74LS293 4-Bit Binary Counter IC
74LS295 4-Bit Right-Shift Left-Shift Register IC
- 4-Bit Right-Shift Left-Shift Register with 3-State Outputs
- High-level input voltage:Â 2V
- Low-level input voltage:Â 0.8V
- High-level output voltage:Â 3.1V
- Low-level output voltage:Â 0.25V
- Input clamp voltage:Â -1.5V
- Maximum clock frequency:Â 45MHz
- Propagation delay time max:Â 30ns
- Supply voltage range:Â 4.75 to 5.25V
- Package:Â DIP-14
74LS299 8-Bit Universal Shift Storage Register IC
- 8-Bit Universal Shift/Storage Register
- High-level input voltage:Â 2V
- Low-level input voltage:Â 0.8V
- High-level output voltage:Â 3.4V
- Low-level output voltage:Â 0.5V
- Maximum clock frequency:Â 70MHz
- Propagation delay time max:Â 24ns
- Power Dissipation:Â 700mW
- Supply voltage range:Â 4.75 to 5.25V
- Multiplexed Input/Outputs for Data Hold, Shift Right, Shift Left, and Load Data
- Operates with Outputs Enabled or at High impedance
- Common I/O for Reduced Pin Count
- Four Operation Modes: Shift Left, Shift Right, Load and Store
- Separate Shift Right Serial Input and Shift Left Serial Input for Easy Cascading
- 3-State Outputs Drive Bus Lines Directly
- Can be Cascaded for N-Bit Word Lengths
- Standard TTL Switching Voltages
- Package:Â DIP-20
74LS30 8-Input Positive-NAND Gate IC
74LS321 Crystal-Controlled Oscillator IC
74LS322 8-Bit Shift Register IC
- 8-Bit Shift Registers with Sign Extend
- High-level output voltage:Â 3.4V
- Low-level output voltage Max. :Â 0.5V
- High-level Output current:Â -0.4mA
- Low-level Output current:Â 8mA
- Input clamp voltage:Â -1.5V
- Maximum clock frequency:Â 35MHz
- Supply voltage range:Â 4.75 to 5.25V
- Multiplexed Input/Outputs for Data Hold, Shift Right, Shift Left, and Load Data
- Multiplexed Inputs/Outputs to provide Improved Bit Density
- Sign Extend Function
- Direct Overriding Clear
- 3-State Outputs Drive Bus Lines Directly
- Package:Â DIP-20