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SN74AHCT16244DLG4 Datasheet(PDF) 9 Page - Texas Instruments |
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SN74AHCT16244DLG4 Datasheet(HTML) 9 Page - Texas Instruments |
9 / 20 page 1A1 1A2 1A3 1A4 1Y1 1Y2 1Y3 1Y4 2A1 2A2 2A3 2A4 2Y1 2Y2 2Y3 2Y4 3A1 3A2 3A3 3A4 3Y1 3Y2 3Y3 3Y4 4A1 4A2 4A3 4A4 4Y1 4Y2 4Y3 4Y4 EN1 EN4 1OE 2OE 3OE 4OE EN2 EN3 1 1 1 1 1 2 3 4 SN74AHCT16244 www.ti.com SCLS334J – MARCH 1996 – REVISED OCTOBER 2014 9 Detailed Description 9.1 Overview The SN74AHCT16244 device is a 16-bit buffer and line driver specifically designed to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. This device can be used as a four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. It provides true outputs and symmetrical active-low output-enable (OE) inputs. 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. The SN74AHCT16244 is characterized for operation from –40°C to 125°C. 9.2 Functional Block Diagram This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Figure 3. 9.3 Feature Description • VCC is optimized at 5 V • Allows up voltage translation from 3.3 V to 5 V – Inputs accept VIH levels of 2 V • Slow edge rates minimize output ringing • Inputs are TTL-voltage compatible 9.4 Device Functional Modes Table 1. Function Table (Each 4-bit Buffer/Driver) INPUTS OUTPUT Y OE A L H H L L L H X Z Copyright © 1996–2014, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: SN74AHCT16244 |
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