Bus Driver, 3861 Series, 1-Func, 10-Bit, True Output, CMOS, PDSO24
QS3861SO Parametric
Parameter Name
Attribute value
Is it Rohs certified?
incompatible
Maker
IDT (Integrated Device Technology)
Parts packaging code
SOIC
package instruction
SOP, SOP24,.4
Contacts
24
Reach Compliance Code
not_compliant
Other features
TTL COMPATIBLE BUS SWITCH
series
3861
JESD-30 code
R-PDSO-G24
JESD-609 code
e0
length
15.4 mm
Logic integrated circuit type
BUS DRIVER
Humidity sensitivity level
1
Number of digits
10
Number of functions
1
Number of ports
2
Number of terminals
24
Maximum operating temperature
85 °C
Minimum operating temperature
-40 °C
Output characteristics
3-STATE
Output polarity
TRUE
Package body material
PLASTIC/EPOXY
encapsulated code
SOP
Encapsulate equivalent code
SOP24,.4
Package shape
RECTANGULAR
Package form
SMALL OUTLINE
Peak Reflow Temperature (Celsius)
225
power supply
5 V
propagation delay (tpd)
0.25 ns
Certification status
Not Qualified
Maximum seat height
2.6416 mm
Maximum supply voltage (Vsup)
5.25 V
Minimum supply voltage (Vsup)
4.75 V
Nominal supply voltage (Vsup)
5 V
surface mount
YES
technology
CMOS
Temperature level
INDUSTRIAL
Terminal surface
Tin/Lead (Sn/Pb)
Terminal form
GULL WING
Terminal pitch
1.27 mm
Terminal location
DUAL
Maximum time at peak reflow temperature
30
width
7.5 mm
QS3861SO Preview
IDTQS3861
HIGH-SPEED CMOS QUICKSWITCH 10-BIT BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH
®
PRODUCTS
HIGH-SPEED CMOS
10-BIT BUS SWITCH WITH
FLOW-THROUGH PINOUT
FEATURES:
−
−
−
−
−
Enhanced N channel FET with no inherent diode to Vcc
5Ω bidirectional switches connect inputs to outputs
Zero propagation delay, zero ground bounce
Undershoot clamp diodes on all switch and control inputs
Available in QSOP, SOIC, and TSSOP Packages
IDTQS3861
DESCRIPTION
The QS3861 provides a set of ten high speed CMOS, TTL-compatible bus
switches. The low ON resistance (5Ω) of the QS3861 allows inputs to be
connected to outputs without adding propagation delay and without gener-
ating additional ground bounce noise. The Bus Enable (BE) signal turns the
switches on.
The QS3861 is characterized for operation at -40°C to +85°C.
APPLICATIONS
−
−
−
−
−
−
Hot-swapping, hot-docking
Voltage translation (5V to 3.3V)
Power conservation
Capacitance reduction and isolation
Bus isolation
Clock gating
FUNCTIONAL BLOCK DIAGRAM
A
0
B
0
A
9
B
9
BE
INDUSTRIAL TEMPERATURE RANGE
1
c
2000 Integrated Device Technology, Inc.
DECEMBER 2000
DSC-5767/-
IDTQS3861
HIGH-SPEED CMOS QUICKSWITCH 10-BIT BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
Symbol
V
TERM(2)
V
TERM(3)
Description
Supply Voltage to Ground
DC Switch Voltage V
S
DC Input Voltage V
IN
AC Input Voltage (pulse width
≤20ns)
DC Output Current
Maximum Power Dissipation (T
A
= 85°C)
Storage Temperature
(1)
Unit
V
V
V
V
mA
W
°C
Max.
– 0.5 to +7
– 0.5 to +7
– 0.5 to +7
-3
120
0.5
– 65 to +150
NC
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
A
9
GND
1
2
3
4
5
6
7
8
9
10
11
12
S O 2 4 -2
S O 2 4 -8
S O 2 4 -9
24
23
22
21
20
19
18
17
16
15
14
13
V
CC
BE
B
0
B
1
B
2
B
3
B
4
B
5
B
6
B
7
B
8
B
9
V
TERM(3)
V
AC
I
OUT
P
MAX
T
STG
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM
RATINGS may cause permanent damage to the device. This is a
stress rating only and functional operation of the device at these or
any other conditions above those indicated in the operational sections
of this specification is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect reliability.
2. Vcc Terminals.
3. All terminals except Vcc.
CAPACITANCE
(T
A
= +25
O
C, f = 1.0MHz, V
IN
= 0V, V
OUT
= 0V)
Pins
Control Pins
Quickswitch Channels (Switch OFF)
Typ.
3
5
Max.
(1)
5
7
Unit
pF
pF
SOIC/ QSOP/ TSSOP
TOP VIEW
NOTE:
1. This parameter is guaranteed but not production tested.
PIN DESCRIPTION
Pin Names
BE
A
0
- A
9
B
0
- B
9
Description
Bus Enable
Bus A
Bus B
FUNCTION TABLE
(1)
BE
H
L
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
Z = High-impedence
A
0
- A
9
Hi-Z
B
0
- B
9
2A, 2Y I/Os
Disconnect
Connect
2
IDTQS3861
HIGH-SPEED CMOS QUICKSWITCH 10-BIT BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: T
A
= -40°C to +85°C, V
CC
= 5.0V ± 5%
Symbol
V
IH
V
IL
I
IN
I
OZ
R
ON
R
ON
V
P
Parameter
Input HIGH Voltage
Input LOW Voltage
Input Leakage Current (Control Inputs)
(2)
Off-State Current (Hi-Z)
Switch ON Resistance
Switch ON Resistance
Pass Voltage
(2)
Test Conditions
Guaranteed Logic HIGH for Control Pins
Guaranteed Logic LOW for Control Pins
0V
≤
V
IN
≤
Vcc
0V
≤
V
OUT
≤
Vcc, Switches OFF
Vcc = Min., V
IN
= 0V, I
ON
= 30mA
Vcc = Min., V
IN
= 2.4V, I
ON
= 15mA
V
IN
= Vcc = 5V, I
OUT
= -5µA
Min.
2
—
—
—
—
—
3.7
Typ.
(1)
—
—
±0.01
±0.01
5
10
4
Max.
—
0.8
±1
±1
7
15
4.2
Unit
V
V
µA
µA
Ω
Ω
V
NOTES:
1. Typical values are at V
CC
= 5.0V, T
A
= 25°C.
2. Pass voltage is guaranteed but not production tested.
TYPICAL ON RESISTANCE vs V
IN
AT V
CC
= 5V
16
R
ON
(ohms)
14
12
10
8
6
4
2
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
V
IN
(Volts)
3
IDTQS3861
HIGH-SPEED CMOS QUICKSWITCH 10-BIT BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
POWER SUPPLY CHARACTERISTICS
Symbol
I
CCQ
∆I
CC
I
CCD
Parameter
Quiescent Power Supply Current
Power Supply Current per Control Input HIGH
Dynamic Power Supply Current per MHz
(4)
Test Conditions
(1)
V
CC
= Max., V
IN
= GND or Vcc, f = 0
V
CC
= Max., V
IN
= 3.4V
(3)
, f = 0
V
CC
= Max., A and B pins open,
BE
Input Toggling at 50% Duty Cycle
Typ.
(2)
0.2
—
—
Max.
3
2.5
0.25
Unit
µA
mA
mA/MHz
NOTES:
1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics.
2. Typical values are at V
CC
= 5.0V, 25°C ambient.
3. Per TLL driven input (V
IN
= 3.4V, control inputs only). A and B pins do not contribute to
∆Icc.
4. This current applies to the control inputs only and represents the current required to switch internal capacitance at the specified frequency. The A
and B inputs generate no significant AC or DC currents as they transition. This parameter is guaranteed but not production tested.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
T
A
= -40°C to +85°C, V
CC
= 5.0V ± 5%
C
LOAD
= 50pF, R
LOAD
= 500Ω unless otherwise noted.
Symbol
t
PLH
t
PHL
t
PZL
t
PZH
t
PLZ
t
PHZ
Parameter
Data Propagation Delay
(2,4)
A to B or B to A
Switch Turn-on Delay
BE
to A or B
Switch Turn-off Delay
(2)
BE
to A or B
Min.
(1)
—
1.5
1.5
Typ.
—
—
—
Max.
0.25
(3)
6.5
5.5
Unit
ns
ns
ns
NOTES:
1. Minimums are guaranteed but not production tested.
2. This parameter is guaranteed but not production tested.
3. The time constant for the switch alone is of the order of 0.25ns for C
L
= 50pF.
4. The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. Since this
time constant is much smaller than the rise and fall times of typical driving signals, it adds very little propagation delay to the system. Propagation
delay of the bus switch, when used in a system, is determined by the driving circuit on the driving side of the switch and its interaction with the load
on the driven side.
4
IDTQS3861
HIGH-SPEED CMOS QUICKSWITCH 10-BIT BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDTQS
XXXXX
Device Type
XX
Package
SO
Q
PA
Sm all Outline IC (SO 24-2)
Quarter-Size Outline Package (SO 24-8)
Thin Shrink Sm all Outline Package (SO24-9)
3861
High Speed CM OS 10-Bit Bus Sw itch with
Flow -Through Pinout
CORPORATE HEADQUARTERS
2975 Stender Way
Santa Clara, CA 95054
for SALES:
800-345-7015 or 408-727-6116
fax: 408-492-8674
www.idt.com*
*To search for sales office near you, please click the sales button found on our home page or dial the 800# above and press 2.
The IDT logo, QuickSwitch, and SynchroSwitch are registered trademarks of Integrated Device Technology, Inc.
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