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74ALVCR162601 Datasheet(PDF) 1 Page - Fairchild Semiconductor

No. de Pieza. 74ALVCR162601
Descripción  Low Voltage 18-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs and 26Ω Series Resistors in the Outputs
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Fabricante  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
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74ALVCR162601 Datasheet(HTML) 1 Page - Fairchild Semiconductor

   
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© 2001 Fairchild Semiconductor Corporation
DS500660
www.fairchildsemi.com
September 2001
Revised October 2001
74ALVCR162601
Low Voltage 18-Bit Universal Bus Transceivers
with 3.6V Tolerant Inputs and Outputs
and 26
Ω Series Resistors in the Outputs
General Description
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 con-
trolled 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-to-
LOW 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 26
Ω 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.
Features
I 1.65–3.6V VCC supply operation
I 3.6V tolerant inputs and outputs
I 26
Ω series resistors on both the A and B Port outputs.
I tPD (A to B, B to A)
4.3 ns max for 3.0V to 3.6V VCC
5.1 ns max for 2.3V to 2.7V VCC
9.2 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:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Order Number
Package
Number
Package Description
74ALVCR162601T
MTD56
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide


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