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Octal Buffers and Line Drivers With 3-State Outputs
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NCA8244 is an octal buffer/driver used for improving driver ability of bus-oriented receivers and transmitters, clock drivers etc. and ensuring the accuracy of signal timing. It provides four channels in each direction with separate output-enable(/OE) input that low active. When /OE is active, NCA8244 transmits data from A to Y. When /OE is high, the outputs are in the high-impedance state. During power up and power down, /OE should be tied to VCC through a pullup resistor to ensure the high impedance state. NCA8244 can tolerate up to 5.5V input voltage and each channel supports maximum 24 mA current drive. All unused inputs must be held at VCC or GND to prevent excess supply current.
Product Features
• Input: TTL
• Power supply voltage: 4.5V-5.5V
• Input pins can withstand up to 5.5V inputs
• Chip-level ESD: HBM: ±4kV
• 3-state output
• Operation temperature:-40℃-125℃
• RoHS-compliant package: TSSOP20
Application
• Motor driver
• I/O modules
• LED displays
Functional Block Diagram
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