74VCXR162601MTD

74VCXR162601MTD Datasheet

74VCXR162601 Low Voltage 18-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs and Series Resistors in the Outputs

Part	Datasheet
74VCXR162601MTD	74VCXR162601MTD (pdf)

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74VCXR162601MTX	74VCXR162601MTX

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74VCXR162601 Low Voltage 18-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs and Series Resistors in the Outputs 74VCXR162601 Low Voltage 18-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs and Series Resistors in the Outputs The VCXR162601, 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 74VCXR162601 is designed for low voltage 1.4V to 3.6V VCC applications with I/O compatibility up to 3.6V. The VCXR162601 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. s 1.4V to 3.6V VCC supply operation s 3.6V tolerant inputs and outputs s series resistors on both the A and B Port outputs. s tPD A to B, B to A ns max for 3.0V to 3.6V VCC s Power-down HIGH impedance inputs and outputs s Supports live insertion/withdrawal Note 1 s Static Drive IOH/IOL ±12 mA 3.0V VCC s Uses patented noise/EMI reduction circuitry s Latchup performance exceeds 300 mA s 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 74VCXR162601MTD 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. 2004 Fairchild Semiconductor Corporation DS500171 74VCXR162601 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 H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial HIGH or LOW, inputs may not float Z = HIGH Impedance Bn Z L H B0 Note 3 B0 Note 3 L H B0 Note 3 B0 Note 4 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. 74VCXR162601 Absolute Maximum Ratings Note 5 Supply Voltage VCC DC Input Voltage VI Output Voltage VO Outputs 3-STATED Outputs Active Note 6 DC Input Diode Current IIK VI < 0V DC Output Diode Current IOK VO < 0V VO > VCC DC Output Source/Sink Current IOH/IOL DC VCC or Ground Current per Supply Pin ICC or Ground Storage Temperature Range TSTG −0.5V to +4.6V −0.5V to +4.6V −0.5V to +4.6V to VCC + 0.5V −50 mA −50 mA +50 mA ±50 mA ±100 mA −65°C to +150°C Recommended Operating Conditions Note 7 Power Supply Operating

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74VCXR162601 Low Voltage 18-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs and Series Resistors in the Outputs
74VCXR162601

Low Voltage 18-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs and Series Resistors in the Outputs

The VCXR162601, 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 74VCXR162601 is designed for low voltage 1.4V to 3.6V VCC applications with I/O compatibility up to 3.6V. The VCXR162601 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.
s 1.4V to 3.6V VCC supply operation s 3.6V tolerant inputs and outputs s series resistors on both the A and B Port outputs. s tPD A to B, B to A
ns max for 3.0V to 3.6V VCC s Power-down HIGH impedance inputs and outputs s Supports live insertion/withdrawal Note 1 s Static Drive IOH/IOL
±12 mA 3.0V VCC s Uses patented noise/EMI reduction circuitry s Latchup performance exceeds 300 mA s 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
74VCXR162601MTD

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.
2004 Fairchild Semiconductor Corporation DS500171
74VCXR162601

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

H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial HIGH or LOW, inputs may not float Z = HIGH Impedance

Bn Z L H B0 Note 3 B0 Note 3 L H B0 Note 3 B0 Note 4

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.
74VCXR162601

Absolute Maximum Ratings Note 5

Supply Voltage VCC DC Input Voltage VI Output Voltage VO

Outputs 3-STATED

Outputs Active Note 6

DC Input Diode Current IIK VI < 0V DC Output Diode Current IOK

VO < 0V VO > VCC DC Output Source/Sink Current

IOH/IOL DC VCC or Ground Current per

Supply Pin ICC or Ground Storage Temperature Range TSTG
−0.5V to +4.6V −0.5V to +4.6V
−0.5V to +4.6V to VCC + 0.5V
−50 mA
−50 mA +50 mA
±50 mA
±100 mA −65°C to +150°C

Recommended Operating Conditions Note 7

Power Supply

Operating

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Datasheet ID: 74VCXR162601MTD 513487