NC7SZ374 TinyLogic UHS D-Type Flip-Flop with 3-STATE Output
May 1998
Revised October 2004
NC7SZ374
TinyLogic
UHS D-Type Flip-Flop with 3-STATE Output
General Description
The NC7SZ374 is a single positive edge-triggered D-type
CMOS Flip-Flop with 3-STATE output from Fairchild’s Ultra
High Speed Series of TinyLogic
in the space saving
SC70 6-lead package. 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 very broad V
CC
operating range. The
device is specified to operate over the 1.65V to 5.5V V
CC
range. The inputs and output are high impedance when
V
CC
is 0V. Inputs tolerate voltages up to 7V independent of
V
CC
operating voltage. This single flip-flop will store the
state of the D input that meets the setup and hold time
requirements on the LOW-to-HIGH Clock (CP) transition.
The output tolerates voltages above V
CC
in the 3-STATE
condition.
Features
s
Space saving SC70 6-lead package
s
Ultra small MicroPak
leadless package
s
Ultra High Speed; t
PD
2.6 ns Typ into 50 pF at 5V V
CC
s
High Output Drive;
±
24 mA at 3V V
CC
s
Broad V
CC
Operating Range; 1.65V to 5.5V
s
Matches the performance of LCX when operated at
3.3V V
CC
s
Power down high impedance inputs/output
s
Overvoltage tolerant inputs facilitate 5V - 3V translation
s
Patented noise/EMI reduction circuitry implemented
Ordering Code:
Order
Number
NC7SZ374P6X
NC7SZ374L6X
Package
Number
MAA06A
MAC06A
Product Code
Top Mark
Z74
C9
Package Description
6-Lead SC70, EIAJ SC88, 1.25mm Wide
6-Lead MicroPak, 1.0mm Wide
Supplied As
3k Units on Tape and Reel
5k Units on Tape and Reel
TinyLogic is a registered trademark of Fairchild Semiconductor Corporation.
MicroPak is a trademark of Fairchild Semiconductor Corporation.
© 2004 Fairchild Semiconductor Corporation
DS500156
www.fairchildsemi.com
NC7SZ374
Logic Symbol
IEEE/IEC
Connection Diagrams
Pin Assignments for SC70
Pin Descriptions
Pin Names
D
CP
OE
Q
Description
Data Input
Clock Pulse Input
Output Enable Input
Flip-Flop Output
Pin One Orientation Diagram
(Top View)
Function Table
Inputs
CP
Output
OE
L
L
L
H
Q
L
H
Q
n
Z
AAA represents 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).
X
D
L
H
X
X
Pad Assignment for MicroPak
H
=
HIGH Logic Level
L
=
LOW Logic Level
Z
=
High Impedance
X
=
Immaterial
Q
n
=
No change in data
(Top Thru View)
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2
NC7SZ374
Absolute Maximum Ratings
(Note 1)
Supply Voltage (V
CC
)
DC Input Voltage (V
IN
)
DC Output Voltage (V
OUT
)
DC Input Diode Current (I
IK
)
V
IN
<
0V
DC Output Diode Current (I
OK
)
V
OUT
<
0V
DC Output (I
OUT
) Source/Sink Current
DC V
CC
/GND Current (I
CC
/I
GND
)
Storage Temperature Range (T
STG
)
Junction Temperature under Bias (T
J
)
Junction Lead Temperature (T
L
)
(Soldering, 10 seconds)
Power Dissipation (P
D
) @
+
85
°
C
260
°
C
180 mW
−
0.5V to
+
7.0V
−
0.5V to
+
7.0V
−
0.5V to
+
7.0V
−
50 mA
−
50 mA
±
50 mA
±
50 mA
−
65
°
C to
+
150
°
C
150
°
C
Recommended Operating
Conditions
(Note 2)
Power Supply
Operating (V
CC
)
Data Retention
Input Voltage (V
IN
)
Output Voltage (V
OUT
)
Active State
3-STATE
Input Rise and Fall Time (t
r
, t
f
)
V
CC
=
1.8V, 2.5V
±
0.2V
V
CC
=
3.3V
±
0.3V
V
CC
=
5.5V
±
0.5V
Operating Temperature (T
A
)
Thermal Resistance (
θ
JA
)
0 to 20 ns/V
0 to 10 ns/V
0 to 5 ns/V
0V to V
CC
0V to 5.5V
1.65V to 5.5V
1.5V to 5.5V
0V to 5.5V
−
40
°
C to
+
85
°
C
350
°
C/W
Note 1:
Absolute Maximum Ratings: are those values beyond which the
safety of the device cannot be guaranteed. The device should not be oper-
ated at these limits. The parametric values defined in the Electrical Charac-
teristics tables are not guaranteed at the absolute maximum ratings. The
“Recommended Operating Conditions” table will define the conditions for
actual device operation.
Note 2:
Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Symbol
V
IH
V
IL
V
OH
Parameter
HIGH Level Control
Input Voltage
LOW Level Control
Input Voltage
HIGH Level Control
Output Voltage
V
CC
(V)
2.3 to 5.5
1.65 to 1.95
2.3 to 5.5
1.65
1.8
2.3
3.0
4.5
1.65
2.3
3.0
3.0
4.5
V
OL
LOW Level Control
Output Voltage
1.65
1.8
2.3
3.0
4.5
1.65
2.3
3.0
3.0
4.5
I
IN
I
OZ
I
OFF
I
CC
Input Leakage Current
3-STATE Output Leakage
Power Off Leakage Current
Quiescent Supply Current
0 to 5.5
1.65 to 5.5
0.0
1.65 to 5.5
1.55
1.7
2.2
2.9
4.4
1.24
1.9
2.4
2.3
3.8
1.65
1.8
2.3
3.0
4.5
1.52
2.15
2.8
2.68
4.2
0.0
0.0
0.0
0.0
0.0
0.08
0.10
0.15
0.22
0.22
0.1
0.1
0.1
0.1
0.1
0.24
0.3
0.4
0.55
0.55
±0.1
±0.5
1.0
1.0
T
A
= +25°C
Min
0.75 V
CC
0.25 V
CC
0.3 V
CC
1.55
1.7
2.2
2.9
4.4
1.29
1.9
2.4
2.3
3.8
0.1
0.1
0.1
0.1
0.1
0.24
0.3
0.4
0.55
0.55
±1.0
±5.0
10
10.0
µA
µA
µA
µA
0
≤
V
IN
≤
5.5V
V
IN
=
V
IL
or V
IH
0
≤
V
OUT
≤
5.5V
V
IN
or V
OUT
=
5.5V
V
IN
=
5.5V, GND
V
V
IN
=
V
IH
I
OL
=
4 mA
I
OL
=
8 mA
I
OL
=
16 mA
I
OL
=
24 mA
I
OL
=
32 mA
I
OL
=
100
µA
V
V
IN
=
V
IH
I
OH
= −4
mA
I
OH
= −8
mA
I
OH
= −16
mA
I
OH
= −24
mA
I
OH
= −32
mA
I
OH
= −100 µA
Typ
Max
T
A
= −40°C
to
+85°C
Min
0.75 V
CC
0.7 V
CC
0.25 V
CC
0.3 V
CC
Max
Units
V
V
Conditions
1.65 to 1.95 0.75 V
CC
3
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NC7SZ374
AC Electrical Characteristics
Symbol
f
MAX
Parameter
Maximum Clock
Frequency
V
CC
(V)
1.65
1.8
2.5
±
0.2
3.3
±
0.3
5.0
±
0.5
1.65
t
PLH
t
PHL
Propagation Delay
CP to Q
1.8
2.5
±
0.2
3.3
±
0.3
5.0
±
0.5
3.3
±
0.3
5.0
±
0.5
t
PZL
t
PZH
Output Enable Time
1.65
1.8
2.5
±
0.2
3.3
±
0.3
5.0
±
0.5
1.65
t
PLZ
t
PHZ
Output Disable Time
1.8
2.5
±
0.2
3.3
±
0.3
5.0
±
0.5
t
S
Setup Time,
CP to D
t
H
Hold Time,
CP to D
t
W
Pulse Width, CP
2.5
±
0.2
3.3
±
0.3
5.0
±
0.5
2.5
±
0.2
3.3
±
0.3
5.0
±
0.5
2.5
±
0.2
3.3
±
0.3
5.0
±
0.5
2.5
2.5
2.0
1.5
1.0
2.0
1.5
2.0
2.0
2.0
1.5
1.0
2.0
2.0
2.0
1.5
1.0
9.7
6.5
3.8
2.8
2.2
3.4
2.6
9.0
6.0
3.7
2.8
2.2
7.7
5.1
3.5
2.8
2.3
1.50
10.0
6.5
4.5
3.5
5.5
4.0
13.5
9.0
6.0
5.0
3.7
12.0
8.0
6.0
4.5
3.7
T
A
= +25°C
Min
Typ
Max
T
A
= −40°C
to
+85°C
Min
100
100
125
150
175
2.5
2.5
2.0
1.4
1.0
1.6
1.4
2.0
2.0
1.8
1.4
1.0
2.0
2.0
1.8
1.4
1.0
2.5
2.0
1.5
1.5
1.5
1.5
3.0
2.8
2.5
ns
CL
=
50 pF
R
D
=
500
Ω,
S
1
=
Open
Figures
1, 5
ns
C
L
=
50 pF
D
Max
Units
Conditions
Figure
Number
MHz
C
L
=
50 pF
R
D
=
500Ω, S
1
=
Open
Figures
1, 3
16.5
11.0
7.0
5.0
3.8
6.2
4.7
14.3
9.5
6.6
5.3
3.9
13.0
8.5
6.3
4.7
3.9
ns
ns
C
L
=
50 pF, V
I
=
2x V
CC
R
U
, R
D
=
500
Ω
S1
=
GND for t
PHZ
S1
=
V
I
for t
PLZ
C
L
=
50 pF
R
D
=
500
Ω,
S
1
=
Open
Figures
1, 5
Figures
1, 4
ns
C
L
=
50 pF, V
I
=
2x V
CC
R
U
, R
D
=
500
Ω
S1
=
GND for t
PZH
S1
=
V
I
for t
PZL
Figures
1, 4
ns
C
L
=
15 pF
R
D
=
1 MΩ
S
1
=
Open
C
L
=
50 pF
R
D
=
500
Ω,
S
1
=
Open
Figures
1, 3
Figures
1, 3
=
500
Ω,
S
1
=
Open
Figures
1, 5
Capacitance
(Note 3)
Symbol
C
IN
C
OUT
C
PD
Input Capacitance
Output Capacitance
Power Dissipation Capacitance (Note 4)
Parameter
Typ
3
4
10
12
Note 3:
T
A
= +25C,
f
=
1MHz.
Note 4:
C
PD
is defined as the value of the internal equivalent capacitance which is derived from dynamic operating current consumption (I
CCD
) at no output
loading and operating at 50% duty cycle. (See Figure 2) C
PD
is related to I
CCD
dynamic operating current by the expression:
I
CCD
=
(C
PD
) (V
CC
) (f
IN
)
+
(I
CC
static).
Max
Units
pF
pF
pF
Conditions
V
CC
=
Open, V
IN
0V or V
CC
V
CC
=
3.3V, V
IN
=
0V or V
CC
V
CC
=
3.3V
V
CC
=
5.0V
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Embedded System
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