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PI5C16209
PI5C162209 (25
)
Product Description
Pericom Semiconductors PI5C series of logic circuits are produced
using the Companys advanced 0.8 micron CMOS technology.
The PI5C16209 and PI5C162209 are 18-bit bus exchange switches
designed with a low ON resistance (5
) allowing inputs to be
connected directly to outputs. This device operates as a 18-bit bus
switch or a 9-bit exchanger, which provides data exchanging
between the four signal ports via the data select pins (S0-S2).
The PI5C162209 device has a built-in 25-ohm series resistor to
reduce noise because of reflections, thus eliminating the need for
an external terminating resistor.
Product Features
Near-zero propagation delay
5W switches connect inputs to outputs
Direct bus connection when switches are ON
Ultra-low quiescent power (0.2A typical)
Ideally suited for notebook applications
Industrial operating temperature: 40C to +85C
Available Packages:
48-pin 240-mil wide thin plastic TSSOP (A)
48-pin 300-mil wide plastic SSOP (V)
Logic Block Diagram
Product Pin Configuration
Function
S2
S1
S0
A1
A2
Disconnect
L
L
L
Z
Z
A1 to B1
L
L
H
B1
Z
A1 to B2
L
H
L
B2
Z
A2 to B1
L
H
H
Z
B1
A2 to B2
H
L
L
Z
B2
Disconnect
H
L
H
Z
Z
A1 to B1, A2 to B2
H
H
L
B1
B2
A1 to B2, A2 to B1
H
H
H
B2
B1
Truth Table
Product Pin Description
Pin Name
I/O
Description
S0-S2
I
Select Inputs
xAx
I/O
Bus A
xB
x
I/O
Bus B
Note:
1. H = High Voltage Level
L = Low Voltage Level
Z = High Impedance
1
A
1
1
B
1
1
A
2
1
B
2
FLOW CONTROL
ONE OF NINE CHANNELS
S
0
S
1
S
2
1
2
3
4
5
6
7
3
A
1
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
1
A
1
1
A
2
S
0
GND
2
A
1
2
A
2
VCC
3
A
2
GND
4
A
1
4
A
2
5
A
1
5
A
2
6
A
2
GND
6
A
1
7
A
1
7
A
2
GND
8
A
1
8
A
2
9
A
1
9
A
2
3
B
1
1
B
1
1
B
2
S
1
2
B
1
2
B
2
GND
3
B
2
GND
4
B
1
4
B
2
5
B
1
5
B
2
GND
6
B
1
6
B
2
7
B
1
7
B
2
GND
8
B
1
8
B
2
9
B
1
9
B
2
S
2
32
31
30
29
28
27
26
25
18-Bit Bus Exchange Switch
PI5C16209/162209
18-BIT BUS-EXCHANGE SWITCH
2
PS7022A 03/13/96
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Storage Temperature............................................................ 65C to +150C
Ambient Temperature with Power Applied ............................ 40C to +85C
Supply Voltage to Ground Potential (Inputs & Vcc Only) ....... 0.5V to +7.0V
Supply Voltage to Ground Potential (Outputs & D/O Only) .... 0.5V to +7.0V
DC Input Voltage ................................................................... 0.5V to +7.0V
DC Output Current ..............................................................................120mA
Power Dissipation ................................................................................... 0.5W
Note:
Stresses greater than those listed under 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 condi-
tions above those indicated in the operational sec-
tions of this specification is not implied. Exposure to
absolute maximum rating conditions for extended
periods may affect reliability.
DC Electrical Characteristics
(Over the Operating Range, T
A
= 40C to +85C, V
CC
= 5V 5%)
Parameters Description
Test Conditions
(1)
Min.
Typ
(2)
Max.
Units
V
IH
Input HIGH Voltage
Guaranteed Logic HIGH Level
2.0
--
--
V
V
IL
Input LOW Voltage
Guaranteed Logic LOW Level
0.5
--
0.8
V
I
IH
Input HIGH Current
V
CC
= Max., V
IN
= V
CC
--
--
1
A
I
IL
Input LOW Current
V
CC
= Max., V
IN
= GND
--
--
1
A
I
OZH
High Impedance Output Current
0
A, B
V
CC
--
--
1
A
V
IK
Clamp Diode Voltage
V
CC
= Min., I
IN
= 18mA
--
0.7
1.2
V
I
OS
Short Circuit Current
(3)
A (B) = 0V, B (A) = V
CC
100
--
--
mA
V
H
Input Hysteresis at Control Pins
--
150
--
mV
R
ON
Switch On Resistance
(4)
V
CC
= Min., V
IN
= 0.0V,
16209
--
5
7
I
ON
= 48mA
162209
20
28
40
V
CC
= Min., V
IN
= 2.4V,
16209
--
10
15
I
ON
= 15mA
162209
20
35
48
Capacitance
(T
A
= 25C, f = 1 MHz)
Parameters
(5)
Description
Test Conditions
Typ
Max.
Units
C
IN
Input Capacitance
V
IN
= 0V
--
6
pF
C
OFF
A/B Capacitance, Switch Off
V
IN
= 0V
--
6
pF
C
ON
A/B Capacitance, Switch On
V
IN
= 0V
--
8
pF
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at Vcc = 5.0V, T
A
= 25C ambient and maximum loading.
3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. Measured by the voltage drop between A and B pin at indicated current through the switch. ON resistance is determined by the
lower of the voltages on the two (A,B) pins.
5. This parameter is determined by device characterization but is not production tested.
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
PI5C16209/162209
18-BIT BUS-EXCHANGE SWITCH
3
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Power Supply Characteristics
Parameters Description
Test Conditions
(1)
Min.
Typ
(2)
Max.
Units
I
CC
Quiescent Power
V
CC
= Max.
V
IN
= GND or V
CC
--
0.1
3.0
A
Supply Current
I
CC
Supply Current per
V
CC
= Max.
V
IN
= 3.4V
(3)
--
--
2.5
mA
Input @ TTL HIGH
I
CCD
Supply Current per
V
CC
= Max.,
--
--
0.25
mA/
Input per MHz
(4)
A and B Pins Open
MHz
Sn = GND
Control Input Toggling
50% Duty Cycle
Notes:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at Vcc = 5.0V, +25C ambient.
3. Per TTL 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 represent 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 not tested, but is
guaranteed by design.
PI5C16209 Switching Characteristics over Operating Range
PI5C16209
Com.
Parameters
Description
Conditions
(1)
Min
Max
Units
t
PLH
Propagation Delay
(2,3)
C
L
= 50pF
0.25
t
PHL
xAx to xBx, xBx to xAx
R
L
= 500
t
PZH
Bus Enable Time
1.5
6.5
ns
t
PZL
S to xAx or xBx
t
PHZ
Bus Disable Time
1.5
5.5
t
PLZ
S to xAx or xBx
PI5C162209 Switching Characteristics over Operating Range
PI5C162209
Com.
Parameters
Description
Conditions
(1)
Min
Max
Units
t
PLH
Propagation Delay
(2,3)
C
L
= 50pF
1.25
ns
t
PHL
xAx to xBx, xBx to xAx
R
L
= 500
t
PZH
Bus Enable Time
1.5
6.5
ns
t
PZL
S to xAx or xBx
t
PHZ
Bus Disable Time
1.5
5.5
ns
t
PLZ
S to xAx or xBx
Notes:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested on Propagation Delays.
3. The bus switch contributes no propagational delay other than the RC delay of the ON resistance of the switch and the load
capacitance. The time constant for the switch alone is of the order of 0.25ns for 50pF load. Since this time constant is much
smaller than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational 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.
Pericom Semiconductor Corporation
2380 Bering Drive San Jose, CA 95131 1-800-435-2336 Fax (408) 435-1100 http://www.pericom.com
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