1
PS7051B 03/23/00
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PI5C16213
24-Bit Bus-Exchange Switch
Product Description
Pericom Semiconductors PI5C series of logic circuits are produced
using the Companys advanced submicron CMOS technology.
The PI5C16213 is a 24-bit bus-exchange switch designed with a low
ON resistance allowing connections to be made with minimal
propagation delay. This device operates as a 24-bit or a 12-bit bus
switch, which provides data exchanging between the four signal
ports via the data-select (S0-S2) terminals.
Product Features
Near-zero propagation delay
5 Ohm switches connect inputs to outputs
Direct bus connection when switches are ON
Ultra-low quiescent power (0.1A typical)
Ideally suited for notebook applications
Industrial operating temperature: 40C to +85C
Packages available:
56-pin 240-mil wide thin plastic TSSOP (A)
56-pin 300-mil wide plastic SSOP (V)
Logic Block Diagram
Product Pin Configuration
Truth Table
Product Pin Description
Note: 1. H = High Voltage Level
L = Low Voltage Level
Z = High Impedance
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
25
26
27
28
32
31
30
29
S0
1A1
1A2
2A1
2A2
3A1
3A2
GND
4A1
4A2
5A1
5A2
6A1
6A2
7A1
7A2
VCC
8A1
GND
8A2
9A1
9A2
10A1
10A2
11A1
11A2
12A1
12A2
S1
S2
1B1
1B2
2B1
2B2
3B1
GND
3B2
4B1
4B2
5B1
5B2
6B1
6B2
7B1
7B2
8B1
GND
8B2
9B1
9B2
10B1
10B2
11B1
11B2
12B1
12B2
1A1
1A2
1B1
Flow Control
1 of 12 Channels
S0
S1
S2
56-Pin
A, V
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PI5C16213
24-Bit Bus-Exchanged Switch
2
PS7051B 03/23/00
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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 conditions above those
indicated in the operational sections of this specifica-
tion is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect reli-
ability.
Capacitance
(T
A
= 25C, f = 1 MHz)
Parameters
(5)
Description
Test Conditions
Typ
Max.
Units
C
IN
Input Capacitance
V
IN
= 0V
6.0
pF
C
OFF
A/B Capacitance, Switch Off
V
IN
= 0V
12.0
pF
C
ON
A/B Capacitance, Switch On
V
IN
= 0V
24.0
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 V
CC
= 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.
DC Electrical Characteristics
(Over the Operating Range, T
A
= 40C to +85C, V
CC
= 5V 10%)
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8
4
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
PI5C16213
24-Bit Bus-Exchanged Switch
3
PS7051B 03/23/00
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Pericom Semiconductor Corporation
2380 Bering Drive San Jose, CA 95131 1-800-435-2336 Fax (408) 435-1100 http://www.pericom.com
Power Supply Characteristics
Parameters
Description
Test Conditions
(1)
Min.
Typ
(2)
Max.
Units
I
CC
Quiescent Power
V
CC
= M
AX
.
V
IN
= GND or V
CC
0.1
3.0
A
Supply Current
I
CC
(3)
Supply Current per
V
CC
= 3.6 V
V
IN
= 2.7 V
(4)
0.2
mA
Input @ TTL HIGH
Other Inputs at V
CC
or GND
I
CCD
Supply Current per
V
CC
= Max.,
0.25
mA/
Input per MHz
(5)
A and B Pins Open
MHz
Sn = GND
Control Input Toggling
50% Duty Cycle
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for applicable device.
2. Typical values are at V
CC
= 5.0V, +25C ambient.
3. This is the increase in supply current for each input that is at the specified TTL voltage level rather than V
CC
or GND.
4. Per TTL driven input (V
IN
= 2.7V, control inputs only); A and B pins do not contribute to I
CC
.
5. 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.
PI5C16213 Switching Characteristics over Operating Range
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.
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