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NC7SZD384 1-Bit Low Power Bus Switch with Level Shifting
June 1997 Revised December 2005
NC7SZD384 1-Bit Low Power Bus Switch with Level Shifting
General Description
The NC7SZD384 provides 1-bit of high-speed CMOS TTL-compatible 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.
Features O Space saving SOT23 or SC70 5-lead package O Ultra small MicroPak Pb-Free leadless package O 5: switch connection between two ports O Designed to be used in level-shifting applications O Minimal propagation delay through the switch O Low ICC O Zero bounce in flow-through mode O Control inputs compatible with TTL level
Ordering Code:
Order Number
NC7SZD384M5X NC7SZD384P5X NC7SZD384L6X
Package Product Code Number Top Mark
MA05B MAA05A MAC06A 8Z4D Z4D A4
Package Description
5-Lead SOT23, JEDEC MO-178, 1.6mm 5-Lead SC70, EIAJ SC-88a, 1.25mm Wide Pb-Free 6-Lead MicroPak, 1.0mm Wide
Supplied As
3k Units on Tape and Reel 3k Units on Tape and Reel 5k Units on Tape and Reel
Pb-Free package per JEDEC J-STD-020B.
MicroPak is a trademark of Fairchild Semiconductor Corporation.
(c) 2005 Fairchild Semiconductor Corporation
DS500016
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NC7SZD384
Logic Symbol
Connection Diagrams
Pin Assignments for SC70 and SOT23
Pin Descriptions
Pin Name
OE A B NC
Description
Bus Switch Enable Bus A Bus B No Connect
(Top View) Pad Assignments for MicroPak
Function Table
OE
L H
BO
AO HIGH-Z State
Function
Connect Disconnect
(Top Through View)
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NC7SZD384
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC) DC Switch Voltage (VS) DC Input Voltage (VIN) (Note 2) DC Output (IOUT) Sink Current DC VCC/GND Current (ICC/GND) Storage Temperature Range (TSTG) Junction Temperature under bias (TJ) Junction Lead Temperature (TL) Power Dissipation (PD) @ 85qC SOT23-5 SC70-5 (Soldering, 10 seconds) DC Input Diode Current (IIK) VIN 0V
0.5V to 7.0V 0.5V to 7.0V 0.5V to 7.0V 50 mA r100 mA 65qC to 150qC 150qC 260qC
200 mW 150 mW 128 mA
Recommended Operating Conditions (Note 3)
Power Supply Operating (VCC) Input Voltage (VIN) Output Voltage (VOUT) Input Rise and Fall Time (tr, tf) Switch Control Input Switch I/O Operating Temperature (TA) Thermal Resistance (TJA) SOT23-5 SC70-5 300qC/Watt 425qC/Watt 0 ns/V to 5 ns 0 ns/V to DC 4.5V to 5.5V 0V to 5.5V 0V to 5.5V
40qC to 85qC
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 VIK VIH VIL VOH II IOFF RON Parameter Maximum Clamp Diode Voltage HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage Input Leakage Current "OFF" Leakage Current Switch On Resistance (Note 5) (V) 4.5 4.5-5.5 4.5-5.5 4.5-5.5 0-5.5 5.5 4.5 5.0 5.0 35.0 ICC Quiescent Supply Current Switch On Switch Off 5.5 5.5 5.5 0.8 0.8 1.5 10.0 2.5 mA See Figure 3 2.0 0.8 Min TA
40qC to 85qC
Typ (Note 4) Max Units Conditions IIN
1.2
V
V V V
18 mA
r1.0 r10.0
7.0 7.0 50.0
PA PA : : : PA
mA
VIN
0 d VIN d 5.5V VIN VIN VIN VIN 0V, II 0V, II 2.4V, II GND VCC 3.4V, IO
VCC
0 d A, B, d VCC 64 mA 30 mA 15 mA 0
VCC or GND, IO
OE OE OE
'ICC
Increase in ICC per Input (Note 6)
0,
Control Input only. Note 4: All typical values are at VCC 5.0V, TA 25qC.
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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NC7SZD384
AC Electrical Characteristics
TA Symbol Parameter VCC (V) tPHL, tPLH tPZL, tPZH tPLZ, tPHZ Note 7: All typical values are VCC 5.0V, TA 25qC. Output Disable Time 4.5-5.5 1.0 6.0 ns Propagation Delay Bus-to-Bus (Note 8) Output Enable Time 4.5-5.5 1.5 7.5 ns VI VI VI VI 7V for tPZL OPEN for tPZH 7V for tPLZ OPEN for tPHZ 4.5-5.5 CL Min
40qC to 85qC
RD 500: Max 0.25 ns VI OPEN Units Conditions Figure Number Figures 1, 2 Figures 1, 2 Figures 1, 2 Typ (Note 7)
50 pF, RU
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 CIN CI/O Note 9: TA Parameter Control Pin Input Capacitance Input/Output Capacitance 25qC f 1MHz Typ 2 4.5 Max 5 10 Units pF pF Conditions VCC VCC 5.0V 5.0V
AC Loading and Waveforms
FIGURE 1. AC Test Circuit Note: Input driven by 50: source terminated in 50:. CL includes load and stray capacitance. Input PRR 1.0 MHz tw 500 ns.
FIGURE 2. AC Waveforms
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NC7SZD384
DC Characteristics
FIGURE 3. Typical High Level Output Voltage vs. Supply Voltage
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NC7SZD384
Tape and Reel Specification
TAPE FORMAT for SC70 and SOT23
Package Designator
M5X, P5X
Tape Section
Leader (Start End) Carrier Trailer (Hub End)
Number Cavities
125 (typ) 3000 75 (typ)
Cavity Status
Empty Filled Empty
Cover Tape Status
Sealed Sealed Sealed
TAPE DIMENSIONS inches (millimeters)
Package
SC70-5 SOT23-5
Tape Size
8 mm 8 mm
DIM A
0.093 (2.35) 0.130 (3.3)
DIM B
0.096 (2.45) 0.130 (3.3)
0.138 r 0.004 0.138 r 0.002 (3.5 r 0.05) (3.5 r 0.10)
DIM F
0.053 r 0.004 0.055 r 0.004 (1.4 r 0.11) (1.35 r 0.10)
DIM Ko
DIM P1
0.157 (4) 0.157 (4)
0.315 r 0.004 0.315 r 0.012 (8 r 0.3) (8 r 0.1)
DIM W
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NC7SZD384
TAPE FORMAT for MicroPak
Package Designator
L6X
Tape Section
Leader (Start End) Carrier Trailer (Hub End)
Number Cavities
125 (typ) 5000 75 (typ)
Cavity Status
Empty Filled Empty
Cover Tape Status
Sealed Sealed Sealed
REEL DIMENSIONS inches (millimeters)
Tape Size
8 mm
A
7.0 (177.8)
B
0.059 (1.50)
C
0.512 (13.00)
D
0.795 (20.20)
N
2.165 (55.00)
0.331 0.059/0.000 (8.40 1.50/0.00)
W1
W2
0.567 (14.40)
W1 0.078/0.039 (W1 2.00/1.00)
W3
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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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NC7SZD384
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
5-Lead SC70, EIAJ SC-88a, 1.25mm Wide Package Number MAA05A
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NC7SZD384
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
Pb-Free 6-Lead MicroPak, 1.0mm Wide Package Number MAC06A
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NC7SZD384 1-Bit Low Power Bus Switch with Level Shifting
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
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 FAIRCHILD SEMICONDUCTOR CORPORATION As used herein: provided in the labeling, can be reasonably expected to result in significant injury to the user. 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or 2. A critical component is any component of a life support (b) support or sustain life, or (c) whose failure to perform device or system whose failure to perform can be reasonwhen properly used in accordance with instructions for use ably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of terms
Datasheet Identification Product Status
Advance Information Preliminary Formative or In Design First Production
Definition
This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. This datasheet contains specifications on a product that has been discontinued by Fairchild Semiconductor. The datasheet is printed for reference information only.
No Identification Needed
Full Production
Obsolete
Not In Production
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