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74HC244DTR2G データシート(PDF) 2 Page - ON Semiconductor |
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74HC244DTR2G データシート(HTML) 2 Page - ON Semiconductor |
2 / 7 page 74HC244 http://onsemi.com 2 LOGIC DIAGRAM DATA INPUTS A1 A2 A3 A4 B1 B2 B3 B4 17 15 13 11 8 6 4 218 16 14 12 9 7 5 3 YB4 YB3 YB2 YB1 YA4 YA3 YA2 YA1 NONINVERTING OUTPUTS PIN 20 = VCC PIN 10 = GND OUTPUT ENABLES ENABLE A ENABLE B 1 19 FUNCTION TABLE Inputs Outputs Enable A, Enable B A, B YA, YB LLL LH H HX Z Z = high impedance PIN ASSIGNMENT A3 A2 YB4 A1 ENABLE A GND YB1 A4 YB2 YB3 5 4 3 2 1 10 9 8 7 6 14 15 16 17 18 19 20 11 12 13 YA2 B4 YA1 ENABLE B VCC B1 YA4 B2 YA3 B3 ORDERING INFORMATION Device Package Shipping† 74HC244DTR2G TSSOP−20* 2500 Tape & Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *This package is inherently Pb−Free. MAXIMUM RATINGS Symbol Parameter Value Unit VCC DC Supply Voltage (Referenced to GND) – 0.5 to + 7.0 V Vin DC Input Voltage (Referenced to GND) – 0.5 to VCC + 0.5 V Vout DC Output Voltage (Referenced to GND) – 0.5 to VCC + 0.5 V Iin DC Input Current, per Pin ±20 mA Iout DC Output Current, per Pin ±35 mA ICC DC Supply Current, VCC and GND Pins ±75 mA PD Power Dissipation in Still Air, TSSOP Package† 450 mW Tstg Storage Temperature – 65 to + 150 _C TL Lead Temperature, 1 mm from Case for 10 Seconds (TSSOP Package) 260 _C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. †Derating — TSSOP Package: − 6.1 mW/_C from 65_ to 125_C For high frequency or heavy load considerations, see Chapter 2 of the ON Semiconductor High−Speed CMOS Data Book (DL129/D). This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high−impedance cir- cuit. For proper operation, Vin and Vout should be constrained to the range GND v (Vin or Vout) v VCC. Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused outputs must be left open. |
同様の部品番号 - 74HC244DTR2G |
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同様の説明 - 74HC244DTR2G |
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