FST16210MTDX

© 2005 Fairchild Semiconductor Corporation DS500193 www.fairchildsemi.com
November 1998
Revised June 2005
FST16210 20-Bit Bus Switch
FST16210
20-Bit Bus Switch
General Description
The Fairchild Switch FST16210 provides 20-Bits of high-
speed CMOS TTL-compatible bus switching. The low on
resistance of the switch allows inputs to be connected to
outputs without adding propagation delay or generating
additional ground bounce noise.
The device is organized as a 10-bit or 20-Bit bus switch.
When OE
1
is LOW, the switch is ON and Port 1A is con-
nected to Port 1B. When OE
2
is LOW, Port 2A is connected
to Port 2B.
Features
4 switch connection between two ports.
Minimal propagation delay through the switch.
Low l
CC
.
Zero bounce in flow-through mode.
Control inputs compatible with TTL level.
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Pin Descriptions
Logic Diagram
Truth Table
Order Number Package Number Package Description
FST16210MTD MTD48 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Pin Name Description
OE
1
, OE
2
Bus Switch Enables
1A, 2A Bus A
1B, 2B Bus B
Inputs Inputs/Outputs
OE
1
OE
2
1A, 1B 2A, 2B
LL1A
1B 2A 2B
LH1A
1B Z
HL Z 2A
2B
HH Z Z
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FST16210
Absolute Maximum Ratings(Note 1) Recommended Operating
Conditions
(Note 3)
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 rating.
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 control inputs must be held high or low. They may not float.
DC Electrical Characteristics
Note 4: Typical values are at V
CC
5.0V and T
A
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.
Supply Voltage (V
CC
) 0.5V to 7.0V
DC Switch Voltage (V
S
) 0.5V to 7.0V
DC Input Voltage (V
IN
) (Note 2) 0.5V to 7.0V
DC Input Diode Current (l
IK
) V
IN
0V 50mA
DC Output (I
OUT
) Sink Current 128mA
DC V
CC
/GND Current (I
CC
/I
GND
) / 100mA
Storage Temperature Range (T
STG
) 65 C to 150 C
Power Supply Operating (V
CC)
4.0V to 5.5V
Input Voltage (V
IN
)0V to 5.5V
Output Voltage (V
OUT
)0V to 5.5V
Input Rise and Fall Time (t
r
, t
f
)
Switch Control Input 0nS/V to 5nS/V
Switch I/O 0nS/V to DC
Free Air Operating Temperature (T
A
)-40 C to 85 C
Symbol Parameter
V
CC
(V)
T
A
40 C to 85 C
Units Conditions
Min Typ
(Note 4)
Max
V
IK
Clamp Diode Voltage 4.5 1.2 V I
IN
18mA
V
IH
HIGH Level Input Voltage 4.05.5 2.0 V
V
IL
LOW Level Input Voltage 4.05.5 0.8 V
I
I
Input Leakage Current 5.5 1.0 A0 V
IN
5.5V
010AV
IN
5.5V
I
OZ
OFF-STATE Leakage Current 5.5 1.0 A0 A, B V
CC
R
ON
Switch On Resistance 4.5 4 7 V
IN
0V, I
IN
64mA
(Note 5) 4.5 4 7 V
IN
0V, I
IN
30mA
4.5 8 12 V
IN
2.4V, I
IN
15mA
4.0 11 20 V
IN
2.4V, I
IN
15mA
I
CC
Quiescent Supply Current 5.5 3 AV
IN
V
CC
or GND, I
OUT
0
I
CC
Increase in I
CC
per Input 5.5 2.5 mA One input at 3.4V
Other inputs at V
CC
or GND
3 www.fairchildsemi.com
FST16210
AC Electrical Characteristics
Note 6: 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 50pF load capacitance, when driven by an ideal voltage source (zero output impedance).
Capacitance (Note 7)
Note 7: T
A
25 C, f 1 MHz, Capacitance is characterized but not tested.
AC Loading and Waveforms
Note: Input driven by 50 source terminated in 50
Note: C
L
includes load and stray capacitance
Note: Input PRR
1.0 MHz, t
W
500 ns
FIGURE 1. AC Test Circuit
FIGURE 2. AC Waveforms
Symbol Parameter
T
A
40 C to 85 C,
Units Conditions
Figure
No.
C
L
50pF, RU RD 500
V
CC
4.5 – 5.5V V
CC
4.0V
Min Max Min Max
t
PHL
,t
PLH
Propagation Delay Bus to Bus
(Note 6)
0.25 0.25 ns V
I
OPEN Figures
1, 2
t
PZH
, t
PZL
Output Enable Time 1.5 6.0 6.5 ns V
I
7V for t
PZL
Figures
1, 2
V
I
OPEN for t
PZH
t
PHZ
, t
PLZ
Output Disable Time 1.5 7.0 7.2 ns V
I
7V for t
PLZ
Figures
1, 2
V
I
OPEN for t
PHZ
Symbol Parameter Typ Max Units Conditions
C
IN
Control Pin Input Capacitance 3 pF V
CC
5.0V
C
I/O
Input/Output Capacitance 6 pF V
CC
, OE 5.0V

FST16210MTDX

Mfr. #:
Manufacturer:
ON Semiconductor / Fairchild
Description:
Digital Bus Switch ICs 20-Bit Bus Switch
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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