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© 2004 Fairchild Semiconductor Corporation DS500323 www.fairchildsemi.com
September 1999
Revised May 2004
NC7SZ19 TinyLogic
UHS 1-of-2 Decoder/Demultiplexer
NC7SZ19
TinyLogic
UHS 1-of-2 Decoder/Demultiplexer
General Description
The NC7SZ19 is a 1-of-2 decoder with a common output
enable. The device is fabricated with advanced CMOS
technology to achieve ultra high speed with high output
drive while maintaining low static power dissipation over a
broad V
CC
operating range. The device is specified to
operate over the 1.65V to 5.5V V
CC
operating range. The
inputs and outputs are high impedance when V
CC
is 0V.
Inputs tolerate voltages up to 5.5V independent of V
CC
operating range.
Features
■ Space saving SC70 6-lead surface mount package
■ Ultra small MicroPak
leadless package
■ Ultra High Speed: t
PD
2.7 ns Typ into 50 pF at 5V V
CC
■ Broad V
CC
Operating Range; 1.65V to 5.5V
■ Power down high impedance inputs/outputs
■ Overvoltage tolerant inputs facilitate 5V to 3V translation
■ Patented noise/EMI reduction circuitry implemented
Ordering Code:
Pin Descriptions
Function Table
H = HIGH Logic Level
L = LOW Logic Level
X = Don’t Care
Connection Diagrams
Pin Assignments for SC70
(Top View)
Pin One Orientation Diagram
AAA = Product Code Top Mark - see ordering code
Note: Orientation of Top Mark determines Pin One location. Read the top
product code mark left to right, Pin One is the lower left pin (see diagram).
Pad Assignments for MicroPak
(Top Thru View)
TinyLogic is a registered trademark of Fairchild Semiconductor Corporation.
MicroPak is a trademark of Fairchild Semiconductor Corporation.
Order Package Product Code
Package Description Supplied As
Number Number Top Mark
NC7SZ19P6X MAA06A Z19 6-Lead SC70, EIAJ SC88, 1.25mm Wide 3k Units on Tape and Reel
NC7SZ19L6X MAC06A B4 6-Lead MicroPak, 1.0mm Wide 5k Units on Tape and Reel
Pin Names Description
E
Decoder Output Enable/ Demultiplexer Data
A Decoder Address/Demultiplexer Select
Y
0
, Y
1
Outputs
Input Output
AE
Y
0
= A + E Y
1
= A + E
LLLH
HLHL
XHHH
