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PI74AUC164245A Datasheet(PDF) 1 Page - Pericom Semiconductor Corporation |
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PI74AUC164245A Datasheet(HTML) 1 Page - Pericom Semiconductor Corporation |
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1 / 9 page  1 PS8730 08/17/04 Features • PI74AUC164245 is designed for low voltage operation: 0.8V to 2.7V • IOFF supports partial Power-Down mode operation • Drive Capability 16mA @ 2.5V • Each supply rail is configurable over supply range • ESD Protection exceeds JESD22 – 2000V Human Body Model (A114-B) – 200V Machine Model (A115-A) • Latch-up performance exceeds 100mA per JESD 78 • Industrial operation at –40°C to +85°C • Packaging: – 48-pin plastic 240-mil TSSOP (A) – 48-pin plastic 173-mil TVSOP (K) PI74AUC164245 Description PericomSemiconductor’sAUCseriesof logiccircuitsareproduced using the Company’s advanced CMOS technology, achieving industry leading performance. The PI74AUC164245 is a 16-bit (dual-octal) noninverting bus transceiver that contains two separate supply rails. B port (VCCB) set to operate at 0.8 to 2.5V and A port (VCCA) set to operate at 0.8 to 2.5V. This arrangement permits universal bidirectional translation over the voltage ranges. The PI74AUC164245isdesignedforasynchronouscommunication between data buses. Data is transmitted from theAbus to the B bus or vice versa, depending on the logic level at the direction control (DIR)input.The output-enable (OE) input is used to disable outputs so buses are isolated. The control pins, 1DIR, 2DIR, 1OE and 2OE are supplied by VCCA. The 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, the output-enable (OE) input 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. Block Diagram 16-Bit 0.8V to 2.7V Scaled Configurable Level Shifting Transceiver with 3-State Outputs 1DIR 1OE 1B1 1 47 1A1 To Seven Other Channels 2DIR 2OE 2B1 24 25 13 2 48 36 2A1 To Seven Other Channels |
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