74ALVCR162601 Low Voltage 18-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs and Series Resistors in the Outputs
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74ALVCR162601 Low Voltage 18-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs and Series Resistors in the Outputs 74ALVCR162601 Low Voltage 18-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs and Series Resistors in the Outputs The 74ALVCR162601, 18-bit universal bus transceiver, combines D-type latches and D-type flip-flops to allow data flow in transparent, latched, and clocked modes. Data flow in each direction is controlled by output-enable OEAB and OEBA , latch-enable LEAB and LEBA , and clock CLKAB and CLKBA inputs. The clock can be controlled by the clock-enable CLKENAB and CLKENBA inputs. For A-to-B data flow, the device operates in the transparent mode when LEAB is HIGH. When LEAB is LOW, the A data is latched if CLKAB is held at a HIGH-toLOW logic level. If LEAB is LOW, the A bus data is stored in the latch/flip-flop on the LOW-to-HIGH transition of CLKAB. Output-enable OEAB is active-LOW. When OEAB is HIGH, the outputs are in the high-impedance state. Data flow for B to A is similar to that of A to B but uses OEBA, LEBA, CLKBA and CLKENBA. The 74ALVCR162601 is designed for low voltage 1.65V to 3.6V VCC applications with I/O compatibility up to 3.6V. The 74ALVCR162601 is also designed with series resistors on both the A and B Port outputs. This design reduces line noise in applications such as memory address drivers, clock drivers, and bus transceivers/transmitters. I VCC supply operation I 3.6V tolerant inputs and outputs I series resistors on both the A and B Port outputs. I tPD A to B, B to A ns max for 3.0V to 3.6V VCC ns max for 2.3V to 2.7V VCC ns max for 1.65V to 1.95V VCC I Power-down HIGH impedance inputs and outputs I Supports live insertion/withdrawal Note 1 I Uses patented noise/EMI reduction circuitry I Latchup conforms to JEDEC JED78 I ESD performance Human body model > 2000V Machine model >200V Note 1 To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pull-up resistor the minimum value of the resistor is determined by the current-sourcing capability of the driver. Ordering Code: Order Number Package Number Package Description 74ALVCR162601T MTD56 56-Lead Thin Shrink Small Outline Package TSSOP , JEDEC MO-153, 6.1mm Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. 2001 Fairchild Semiconductor Corporation DS500660 74ALVCR162601 Connection Diagram Logic Diagram Pin Descriptions Pin Names OEAB, OEBA Output Enable Inputs Active LOW LEAB, LEBA Latch Enable Inputs CLKAB, CLKBA Clock Inputs CLKENAB, CLKENBA Clock Enable Inputs Side A Inputs or 3-STATE Outputs Side B Inputs or 3-STATE Outputs Function Table Note 2 Inputs Outputs CLKENAB OEAB LEAB CLKAB An X B0 Note 3 X B0 Note 3 X B0 Note 3 X B0 Note 4 H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial HIGH or LOW, inputs may not float Z = HIGH Impedance Note 2 A-to-B data flow is shown B-to-A flow is similar but uses OEBA, LEBA, CLKBA, and CLKENBA. Note 3 Output level before the indicated steady-state input conditions were established Note 4 Output level before the indicated steady-state input conditions were established, provided that CLKAB was HIGH before LEAB went LOW. 74ALVCR162601 Absolute Maximum Ratings Note 5 Supply Voltage VCC DC Input Voltage VI Output Voltage VO Note 6 DC Input Diode Current IIK VI < 0V DC Output Diode Current IOK VO < 0V DC Output Source/Sink Current IOH/IOL DC VCC or GND Current per Supply Pin ICC or GND Storage Temperature Range TSTG −0.5V to +4.6V −0.5V to 4.6V −0.5V to VCC +0.5V −50 mA −50 mA ±50 mA ±100 mA −65°C to +150°C Recommended Operating Conditions Note 7 Power Supply |
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