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74ALVC162838 Schematic ( PDF Datasheet ) - Fairchild Semiconductor

Teilenummer 74ALVC162838
Beschreibung Low Voltage 16-Bit Selectable Register/Buffer with 3.6V Tolerant Inputs/Outputs and 26 Series Resistors in the Outputs
Hersteller Fairchild Semiconductor
Logo Fairchild Semiconductor Logo 




Gesamt 6 Seiten
74ALVC162838 Datasheet, Funktion
November 2001
Revised November 2001
74ALVC162838
Low Voltage 16-Bit Selectable Register/Buffer
with 3.6V Tolerant Inputs/Outputs
and 26Series Resistors in the Outputs
General Description
The ALVC162838 contains sixteen non-inverting selectable
buffered or registered paths. The device can be configured
to operate in a registered, or flow through buffer mode by
utilizing the register enable (REGE) and Clock (CLK) sig-
nals. The device operates in a 16-bit word wide mode. All
outputs can be placed into 3-State through the use of the
OE pin. These devices are ideally suited for buffered or
registered 168 pin and 200 pin SDRAM DIMM memory
modules.
The 74ALVC162838 is designed for low voltage (1.65V to
3.6V) VCC applications with I/O compatibility up to 3.6V.
The ALVC162838 is also designed with 26series resis-
tors in the outputs. This design reduces line noise in appli-
cations such as memory address drivers, clock drivers, and
bus transceivers/transmitters.
The 74ALVC162838 is fabricated with an advanced CMOS
technology to achieve high speed operation while maintain-
ing low CMOS power dissipation.
Features
s Compatible with PC100 and PC133 DIMM module
specifications
s 1.65V–3.6V VCC supply operation
s 3.6V tolerant inputs and outputs
s 26series resistors in the outputs
s tPD (CLK to On)
4.4 ns max for 3.0V to 3.6V VCC
5.9 ns max for 2.3V to 2.7V VCC
9.8 ns max for 1.65V to 1.95V VCC
s Power-off high impedance inputs and outputs
s Supports live insertion and withdrawal (Note 1)
s Uses patented noise/EMI reduction circuitry
s Latchup conforms to JEDEC JED78
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:
Ordering Code Package Number
Package Descriptions
74ALVC162838T
MTD48
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Devices also available in Tape and Reel. Specify by appending suffix letter Xto the ordering code.
Logic Symbol
Pin Descriptions
Pin Names
OE
I0I15
O0O15
CLK
REGE
Description
Output Enable Input (Active LOW)
Inputs
Outputs
Clock Input
Register Enable Input
© 2001 Fairchild Semiconductor Corporation DS500711
www.fairchildsemi.com






74ALVC162838 Datasheet, Funktion
Physical Dimensions inches (millimeters) unless otherwise noted
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Package Number MTD48
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILDS PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be rea-
sonably expected to result in a significant injury to the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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