ETC NC7SZD384M5

Revised November 2000
NC7SZD384
TinyLogic UHS 1-Bit Low Power Bus Switch
with Level Shifting
General Description
Features
The NC7SZD384 provides 1-bit of high-speed CMOS TTLcompatible bus switch. The low on resistance of the switch
allows inputs to be connected to outputs with minimal propagation delay and without generating additional ground
bounce noise. The device is organized as a 1-bit switch
with a bus enable (OE) signal. When OE is LOW, the
switch is on and Port A is connected to Port B. When OE is
HIGH, the switch is open and a high-impedance state
exists between the two ports. Reduced voltage drive to the
gate of the FET switch permits nominal level shifting of 5V
to 3.3V through the switch.
■ Space saving SOT23 or SC70 5-lead package.
■ 5Ω switch connection between two ports.
■ Designed to be used in level-shifting applications.
■ Minimal propagation delay through the switch.
■ Low ICC.
■ Zero bounce in flow-through mode.
■ Control inputs compatible with TTL level.
Ordering Code:
Order
Package
Product Code
Number
Number
Top Mark
NC7SZD384M5
MA05B
8Z4D
5-Lead SOT23, JEDEC MO-178, 1.6mm
NC7SZD384M5X
MA05B
8Z4D
5-Lead SOT23, JEDEC MO-178, 1.6mm
3k Units on Tape and Reel
NC7SZD384P5
MAA05A
Z4D
5-Lead SC70, EIAJ SC-88a, 1.25mm Wide
250 Units on Tape and Reel
NC7SZD384P5X
MAA05A
Z4D
5-Lead SC70, EIAJ SC-88a, 1.25mm Wide
3k Units on Tape and Reel
Package Description
Logic Symbol
Supplied As
250 Units on Tape and Reel
Connection Diagram
(Top View)
Pin Descriptions
Function Table
Pin Name
Description
OE
BO
OE
Bus Switch Enable
L
AO
Connect
A
Bus A
H
HIGH-Z State
Disconnect
B
Bus B
Function
TinyLogic is a trademark of Fairchild Semiconductor Corporation.
© 2000 Fairchild Semiconductor Corporation
DS500016
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NC7SZD384 TinyLogic UHS 1-Bit Low Power Bus Switch with Level Shifting
June 1997
NC7SZD384
Absolute Maximum Ratings(Note 1)
Recommended Operating
Conditions (Note 3)
Supply Voltage (VCC)
−0.5V to +7.0V
DC Switch Voltage (VS)
−0.5V to +7.0V
Power Supply Operating (VCC)
DC Input Voltage (VIN ) (Note 2)
−0.5V to +7.0V
Input Voltage (VIN)
0V to 5.5V
0V to 5.5V
DC Input Diode Current (IIK) VIN < 0V
−50 mA
Output Voltage (VOUT)
DC Output (IOUT) Sink Current
128 mA
Input Rise and Fall Time (tr, tf)
±100 mA
DC VCC/GND Current (ICC/GND)
Storage Temperature Range
(TSTG)
Switch Control Input
−65°C to +150°C
0 ns/V to 5 ns
Switch I/O
+150°C
Junction Temperature under bias (TJ)
4.5V to 5.5V
0 ns/V to DC
−40°C to +85°C
Operating Temperature (TA)
Thermal Resistance (θJA)
Junction Lead Temperature (TL)
+260°C
(Soldering, 10 seconds)
Power Dissipation (PD) @ +85°C
SOT23-5
200 mW
SC70-5
150 mW
SOT23-5
300°C/Watt
SC70-5
425°C/Watt
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Note 2: The input and output negative voltage ratings may be exceeded if
the input and output diode current ratings are observed.
Note 3: Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
VCC
Symbol
Parameter
(V)
VIK
Maximum Clamp Diode Voltage
VIH
HIGH Level Input Voltage
4.5–5.5
VIL
LOW Level Input Voltage
4.5–5.5
VOH
HIGH Level Output Voltage
II
Input Leakage Current
IOFF
“OFF” Leakage Current
RON
Switch On Resistance (Note 5)
4.5
ICC
∆ICC
TA = −40°C to +85°C
Min
Typ
(Note 4)
Max
−1.2
4.5
2.0
Units
−V
Conditions
IIN = −18 mA
V
0.8
V
0–5.5
±1.0
µA
5.5
±10.0
µA
0 ≤ A, B, ≤ VCC
7
Ω
VIN = 0V, II = 64 mA
5
0 ≤ VIN ≤ 5.5V
5
7
Ω
VIN = 0V, II = 30 mA
35
50
Ω
VIN = 2.4V, II = 15 mA
0.8
1.5
mA
OE = GND
10
µA
OE = VCC
2.5
mA
VIN = VCC or GND, IO = 0
Quiescent Supply Current
Switch On
5.5
Switch Off
5.5
Increase in ICC per Input (Note 6)
5.5
0.8
OE = 3.4V, IO = 0,
Control Input only.
Note 4: All typical values are at VCC = 5.0V, TA= 25°C.
Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the voltages on the two (A or B) pins.
Note 6: Per TTL driven input (VIN = 3.4V, control input only). A and B pins do not contribute to ICC.
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2
TA = −40°C to +85°C
Symbol
Parameter
tPHL,
Prop Delay Bus to Bus
tPLH
(Note 8)
tPZL,
Output Enable Time
VCC
CL = 50 pF, RU=RD=500Ω
(V)
Typ
(Note 7)
Min
Conditions
0.25
ns
7.5
ns
1.5
VI = OPEN
Figures
1, 2
VI = 7V for tPZL
Figures
1, 2
VI = OPEN for tPZH
tPZH
tPLZ,
Output Disable Time
4.5–5.5
Fig. No.
Max
4.5–5.5
4.5–5.5
Units
1.0
6.0
VI = 7V for tPLZ
ns
Figures
1, 2
VI = OPEN for tPHZ
tPHZ
Note 7: All typical values are VCC = 5.0V, TA = 25°C.
Note 8: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On
resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance).
Capacitance (Note 9)
Symbol
Parameter
CIN
Control Pin Input Capacitance
CI/O
Input/Output Capacitance
Typ
Max
Units
Conditions
2
5
pF
VCC = 5.0V
4.5
10
pF
VCC = 5.0V
Note 9: TA = 25°C f = 1MHz
AC Loading and Waveforms
FIGURE 1. AC Test Circuit
Note: Input driven by 50Ω source terminated in 50Ω.
CL includes load and stray capacitance.
Input PRR = 1.0 MHz tw = 500 ns.
FIGURE 2. AC Waveforms
3
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NC7SZD384
AC Electrical Characteristics
NC7SZD384
Tape and Reel Specification
TAPE FORMAT
Package
Designator
Tape
Number
Cavity
Section
Cavities
Status
Status
125 (typ)
Empty
Sealed
Sealed
Leader (Start End)
M5, P5
Carrier
M5X, P5X
Cover Tape
250
Filled
Trailer (Hub End)
75 (typ)
Empty
Sealed
Leader (Start End)
125 (typ)
Empty
Sealed
3000
Filled
Sealed
75 (typ)
Empty
Sealed
Carrier
Trailer (Hub End)
TAPE DIMENSIONS inches (millimeters)
Package
SC70-5
SOT23-5
Tape Size
8 mm
8 mm
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DIM A
DIM B
0.093
0.096
(2.35)
(2.45)
0.130
0.130
(3.3)
(3.3)
DIM F
DIM Ko
0.138 ± 0.004 0.053 ± 0.004
(3.5 ± 0.10)
(1.35 ± 0.10)
0.138 ± 0.002 0.055 ± 0.004
(3.5 ± 0.05)
4
(1.4 ± 0.11)
DIM P1
DIM W
0.157
0.315 ± 0.004
(4)
(8 ± 0.1)
0.157
0.315 ± 0.012
(4)
(8 ± 0.3)
NC7SZD384
Tape and Reel Specification
(Continued)
REEL DIMENSIONS inches (millimeters)
Tape
Size
8 mm
A
B
C
D
N
W1
W2
W3
7.0
0.059
0.512
0.795
2.165
0.331 + 0.059/−0.000
0.567
W1 + 0.078/−0.039
(177.8)
(1.50)
(13.00)
(20.20)
(55.00)
(8.40 + 1.50/−0.00)
(14.40)
(W1 + 2.00/−1.00)
5
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NC7SZD384
Physical Dimensions inches (millimeters) unless otherwise noted
5-Lead SOT23, JEDEC MO-178, 1.6mm
Package Number MA05B
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6
NC7SZD384 TinyLogic UHS 1-Bit Low Power Bus Switch with Level Shifting
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
5-Lead SC70, EIAJ SC-88a, 1.25mm Wide
Package Number MAA05A
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
FAIRCHILD’S 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:
2. A critical component in any component of a life support
device or system whose failure to perform can be reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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 reasonably expected to result in a significant injury to the
user.
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7
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