21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16209
PI5C162209 (25Ω)
Ω
18-Bit Bus Exchange Switch
Product Features
Near-zero propagation delay
5W switches connect inputs to outputs
Direct bus connection when switches are ON
Ultra-low quiescent power (0.2µA typical)
Ideally suited for notebook applications
Industrial operating temperature: 40°C to +85°C
Available Packages:
48-pin 240-mil wide thin plastic TSSOP (A)
48-pin 300-mil wide plastic SSOP (V)
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 (5Ω) 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.
Logic Block Diagram
ONE OF NINE CHANNELS
1
A
1
1
B
1
Product Pin Configuration
S
0
1
A
1
1
A
2
GND
2
A
1
2
A
2
1
A
2
1
B
2
VCC
3
A
1
3
A
2
1
2
3
4
5
6
7
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
32
31
30
29
28
27
26
25
S
1
S
2
1
B
1
1
B
2
2
B
1
2
B
2
GND
3
B
1
3
B
2
FLOW CONTROL
S
0
S
1
S
2
GND
4
A
1
4
A
2
5
A
1
5
A
2
GND
6
A
1
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
Truth Table
Function
Disconnect
A1 to B1
A1 to B2
A2 to B1
A2 to B2
Disconnect
A1 to B1, A2 to B2
A1 to B2, A2 to B1
Note:
S2
L
L
L
L
H
H
H
H
S1
L
L
H
H
L
L
H
H
S0
L
H
L
H
L
H
L
H
A1
Z
B1
B2
Z
Z
Z
B1
B2
A2
Z
Z
Z
B1
B2
Z
B2
B1
6
A
2
7
A
1
7
A
2
GND
8
A
1
8
A
2
9
A
1
9
A
2
GND
8
B
1
8
B
2
9
B
1
9
B
2
Product Pin Description
Pin Name
S0-S2
xAx
xB
x
1
1. H = High Voltage Level
L = Low Voltage Level
Z = High Impedance
I/O
I
I/O
I/O
Description
Select Inputs
Bus A
Bus B
PS7022A 03/13/96
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16209/162209
18-BIT BUS-EXCHANGE SWITCH
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ............................................................ 65°C to +150°C
Ambient Temperature with Power Applied ............................ 40°C to +85°C
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
= –40°C to +85°C, V
CC
= 5V ±5%)
Parameters Description
V
IH
V
IL
I
IH
I
IL
I
OZH
V
IK
I
OS
V
H
R
ON
Input HIGH Voltage
Input LOW Voltage
Input HIGH Current
Input LOW Current
High Impedance Output Current
Clamp Diode Voltage
Short Circuit Current
(3)
Input Hysteresis at Control Pins
Switch On Resistance
(4)
V
CC
= Min., V
IN
= 0.0V,
I
ON
= 48mA
V
CC
= Min., V
IN
= 2.4V,
I
ON
= 15mA
16209
162209
16209
162209
Test Conditions
(1)
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
CC
= Max., V
IN
= V
CC
V
CC
= Max., V
IN
= GND
0
≤
A, B
≤
V
CC
V
CC
= Min., I
IN
= –18mA
A (B) = 0V, B (A) = V
CC
Min.
2.0
–0.5
—
—
—
—
100
—
—
20
—
20
Typ
(2)
—
—
—
—
—
–0.7
—
150
5
28
10
35
Max.
—
0.8
±1
±1
±1
–1.2
—
—
7
40
15
48
Ω
Units
V
V
µA
µA
µA
V
mA
mV
Ω
Capacitance
(T
A
= 25°C, f = 1 MHz)
Parameters
(5)
C
IN
C
OFF
C
ON
Description
Input Capacitance
A/B Capacitance, Switch Off
A/B Capacitance, Switch On
Test Conditions
V
IN
= 0V
V
IN
= 0V
V
IN
= 0V
Typ
—
—
—
Max.
6
6
8
Units
pF
pF
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
= 25°C 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.
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PS7022A 03/13/96
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PI5C16209/162209
18-BIT BUS-EXCHANGE SWITCH
Power Supply Characteristics
Parameters Description
I
CC
∆I
CC
I
CCD
Quiescent Power
Supply Current
Supply Current per
Input @ TTL HIGH
Supply Current per
Input per MHz
(4)
Test Conditions
(1)
V
CC
= Max.
V
CC
= Max.
V
CC
= Max.,
A and B Pins Open
Sn = GND
Control Input Toggling
50% Duty Cycle
V
IN
= GND or V
CC
V
IN
= 3.4V
(3)
Min.
—
—
—
Typ
(2)
0.1
—
—
Max.
3.0
2.5
0.25
Units
µA
mA
mA/
MHz
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, +25°C 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
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Description
Propagation Delay
(2,3)
xAx to xBx, xBx to xAx
Bus Enable Time
S to xAx or xBx
Bus Disable Time
S to xAx or xBx
Conditions
(1)
C
L
= 50pF
R
L
= 500Ω
Min
1.5
1.5
Max
0.25
6.5
5.5
ns
Units
PI5C162209 Switching Characteristics over Operating Range
PI5C162209
Com.
Parameters
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Description
Propagation Delay
(2,3)
xAx to xBx, xBx to xAx
Bus Enable Time
S to xAx or xBx
Bus Disable Time
S to xAx or xBx
Conditions
(1)
C
L
= 50pF
R
L
= 500Ω
Min
1.5
1.5
Max
1.25
6.5
5.5
Units
ns
ns
ns
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
3
PS7022A 03/13/96
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