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Specifications
SKU: 1039902
PARALLEL-LOAD 8-BIT SHIFT REGISTERS
| Parameter | Symbol | Min | Typical | Max | Unit | Conditions |
|---|---|---|---|---|---|---|
| Supply Voltage | VCC | 4.5 | - | 5.5 | V | |
| Input Low Voltage | VIL | -0.5 | - | 1.5 | V | |
| Input High Voltage | VIH | 3.5 | - | 5.5 | V | |
| Output Low Voltage | VOL | -0.5 | - | 0.4 | V | IOL = 16 mA, VCC = 5V |
| Output High Voltage | VOH | 2.4 | - | 5.5 | V | IOH = -4 mA, VCC = 5V |
| Input Leakage Current | IIL | -1 | - | 1 | μA | VCC = 5V |
| Output Sink Current | IOL | - | 16 | - | mA | VOL = 0.4V, VCC = 5V |
| Output Source Current | IOH | - | -4 | - | mA | VOH = 2.4V, VCC = 5V |
| Propagation Delay Time | tpd | - | 9 | 18 | ns | VCC = 5V, TA = 25°C |
| Power Dissipation | PD | - | - | 100 | mW | Per Package |
| Operating Temperature | TA | -40 | - | 85 | °C | |
| Storage Temperature | TSTG | -65 | - | 150 | °C |
Instructions for Using SN74LC244A
Power Supply:
- Connect VCC to +5V and GND to ground.
- Ensure the power supply is stable and within the specified range (4.5V to 5.5V).
Input Connections:
- Connect the input pins (1A to 8A and 9A to 16A) to your signal sources.
- Ensure that the input voltages are within the valid range (VIL to VIH).
Output Connections:
- Connect the output pins (1Y to 8Y and 9Y to 16Y) to the load or next stage of your circuit.
- Ensure that the output current does not exceed the maximum ratings (IOL and IOH).
Enable/Disable Control:
- Use the enable pins (1G and 19G) to control the operation of the buffers.
- Set 1G and 19G to low (0V) to enable the buffers.
- Set 1G and 19G to high (VCC) to disable the buffers.
Propagation Delay:
- Account for the propagation delay (tpd) when designing your timing circuits to ensure proper signal synchronization.
Thermal Management:
- Ensure adequate heat dissipation if operating near the maximum power dissipation limit.
- Use a heatsink if necessary, especially in high-power applications.
Storage and Handling:
- Store the device in a dry environment within the storage temperature range (-65°C to 150°C).
- Handle with care to avoid damage from electrostatic discharge (ESD).
Testing:
- Before integrating the SN74LC244A into your final design, test it on a breadboard or prototype board to verify functionality.
- Use a multimeter to check for correct voltage levels and current draw.
By following these instructions, you can effectively integrate the SN74LC244A into your digital circuits.
(For reference only)Inquiry - SN74LC244A
