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74LVC16244ADGGRG4 bảng dữ liệu(PDF) 2 Page - Texas Instruments |
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74LVC16244ADGGRG4 bảng dữ liệu(HTML) 2 Page - Texas Instruments |
2 / 16 page www.ti.com DESCRIPTION/ORDERING INFORMATION (CONTINUED) GQL OR ZQL PACKAGE (TOP VIEW) J H G F E D C B A 2 1 3 4 6 5 K abc GRD OR ZRD PACKAGE (TOP VIEW) J H G F E D C B A 2 1 3 4 6 5 abc SN74LVC16244A 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS SCAS699A – AUGUST 2003 – REVISED OCTOBER 2005 This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. TERMINAL ASSIGNMENTS(1) (56-Ball GQL Package) 1 2 3 4 5 6 A 1OE NC NC NC NC 2OE B 1Y2 1Y1 GND GND 1A1 1A2 C 1Y4 1Y3 VCC VCC 1A3 1A4 D 2Y2 2Y1 GND GND 2A1 2A2 E 2Y4 2Y3 2A3 2A4 F 3Y1 3Y2 3A2 3A1 G 3Y3 3Y4 GND GND 3A4 3A3 H 4Y1 4Y2 VCC VCC 4A2 4A1 J 4Y3 4Y4 GND GND 4A4 4A3 K 4OE NC NC NC NC 3OE abc (1) NC – No internal connection TERMINAL ASSIGNMENTS(1) (54-Ball GRD/ZRD Package) 1 2 3 4 5 6 A 1Y1 NC 1OE 2OE NC 1A1 B 1Y3 1Y2 NC NC 1A2 1A3 C 2Y1 1Y4 VCC VCC 1A4 2A1 D 2Y3 2Y2 GND GND 2A2 2A3 E 3Y1 2Y4 GND GND 2A4 3A1 F 3Y3 3Y2 GND GND 3A2 3A3 G 4Y1 3Y4 VCC VCC 3A4 4A1 H 4Y3 4Y2 NC NC 4A2 4A3 J 4Y4 NC 4OE 3OE NC 4A4 (1) NC – No internal connection abc FUNCTION TABLE (EACH 4-BIT BUFFER) INPUTS OUTPUT Y OE A L H H L L L H X Z 2 |
Số phần tương tự - 74LVC16244ADGGRG4 |
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Mô tả tương tự - 74LVC16244ADGGRG4 |
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