© 2005 Fairchild Semiconductor Corporation DS500192 www.fairchildsemi.com
February 1999
Revised January 2005
74VCX16722 Low Voltage 22-Bit Register with 3.6V Tolerant Inputs and Outputs
74VCX16722
Low Voltage 22-Bit Register
with 3.6V Tolerant Inputs and Outputs
General Description
The VCX16722 low voltage 22-bit register contains twenty-
two non-inverting D-type flip-flops with 3-STATE outputs
and is intended for bus oriented applications. The design
has been optimized for use with JEDEC compliant 200 pin
DIMM modules.
The 74VCX16722 is designed for low voltage (1.65V to
3.6V) V
CC
applications with I/O capability up to 3.6V.
The 74VCX16722 is fabricated with an advanced CMOS
technology to achieve high speed operation while maintain-
ing low CMOS power dissipation.
Features
■ 1.65V–3.6V V
CC
supply operation
■ 3.6V tolerant inputs and outputs
■ t
PD
(CLK to O
n
)
3.6ns max for 3.0V to 3.6V V
CC
4.6ns max for 2.3V to 2.7V V
CC
9.2ns max for 1.65V to 1.95V V
CC
■ Power-down high impedance inputs and outputs
■ Supports live insertion/withdrawal (Note 1)
■ Meets JEDEC registered module specifications
■ Static Drive (I
OH
/I
OL
)
±24mA @ 3.0V
±18mA @ 2.3V
±6mA @ 1.65V
■ Latchup performance exceeds 300 mA
■ 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 V
CC
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
74VCX16722MTD MTD64 64-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide