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© 2005 Fairchild Semiconductor Corporation DS500820 www.fairchildsemi.com
January 2003
Revised January 2005
NC7SP74 TinyLogic
ULP D-Type Flip-Flop with Preset and Clear
NC7SP74
TinyLogic
ULP D-Type Flip-Flop with Preset and Clear
General Description
The NC7SP74 is a single D-type CMOS Flip-Flop with pre-
set and clear from Fairchild’s Ultra Low Power (ULP)
Series of TinyLogic
. Ideal for applications where battery
life is critical, this product is designed for ultra low power
consumption within the V
CC
operating range of 0.9V to
3.6V.
The internal circuit is composed of a minimum of inverter
stages including the output buffer, to enable ultra low static
and dynamic power.
The NC7SP74, for lower drive requirements, is uniquely
designed for optimized power and speed, and is fabricated
with an advanced CMOS technology to achieve best in
class speed operation while maintaining extremely low
CMOS power dissipation.
The signal level applied to the D input is transferred to the
Q output during the positive going transition of the CLK
pulse.
Features
■ Space saving US8 surface mount package
■ MicroPak
Pb-Free leadless package
■ 0.9V to 3.6V V
CC
supply operation
■ 3.6V overvoltage tolerant I/Os at V
CC
from 0.9V to 3.6V
■ t
PD
3.0 ns typ for 3.0V to 3.6V V
CC
4.0 ns typ for 2.3V to 2.7V V
CC
5.0 ns typ for 1.65V to 1.95V V
CC
6.0 ns typ for 1.40V to 1.60V V
CC
9.0 ns typ for 1.10V to 1.30V V
CC
24.0 ns typ for 0.90V V
CC
■ Power-Off high impedance inputs and outputs
■ Static Drive (I
OH
/I
OL
)
±2.6 mA @ 3.00V V
CC
±2.1 mA @ 2.30V V
CC
±1.5 mA @ 1.65V V
CC
±1.0 mA @ 1.40V V
CC
±0.5 mA @ 1.10V V
CC
±20 µA @ 0.9V V
CC
■ Uses patented Quiet Series noise/EMI reduction
circuitry
■ Ultra low dynamic power
Ordering Code:
Pb-Free package per JEDEC J-STD-020B.
Battery Life vs. V
CC
Supply Voltage
TinyLogic ULP and ULP-A with up to 50% less power consumption can
extend your battery life significantly.
Battery Life = (V
battery
*I
battery
*.9)/(P
device
)/24hrs/day
Where, P
device
= (I
CC
* V
CC
) + (C
PD
+ C
L
) * V
CC
2
* f
Assumes ideal 3.6V Lithium Ion battery with current rating of 900mAH and
derated 90% and device frequency at 10MHz, with C
L
= 15 pF load
TinyLogic is a registered trademark of Fairchild Semiconductor Corporation.
MicroPak and Quiet Series are trademarks of Fairchild Semiconductor Corporation.
Product
Package Description Supplied AsOrder Package Code
Number Number Top Mark
NC7SP74K8X MAB08A P74 8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide 3k Units on Tape and Reel
NC7SP74L8X MAC08A X9 Pb-Free 8-Lead MicroPak, 1.6 mm Wide 5k Units on Tape and Reel

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