1
PS7023J 09/09/04
1
2
3
4
5
6
7
GND
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
1 1
A
1 2
A
S
0
2 1
A
2 2
A
3 1
A
3 2
A
4 1
A
4 2
A
5 1
A
5 2
A
6 1
A
6 2
A
V
CC
7 1
A
7 2
A
8 1
A
GND
8 2
A
9 1
A
9 2
A
10 1
A
10 2
A
11 1
A
11 2
A
12 1
A
12 2
A
GND
1 1
B
1 2
B
S
1
2 1
B
2 2
B
3 1
B
3 2
B
4 1
B
4 2
B
5 1
B
5 2
B
6 1
B
6 2
B
7 1
B
7 2
B
8 1
B
GND
8 2
B
9 1
B
9 2
B
10 1
B
10 2
B
11 1
B
11 2
B
12 1
B
12 2
B
S
2
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24-Bit Bus Exchange Switch
Product Description
Pericom Semiconductor's PI5C16212 is a 24-bit bus exchange
switches designed with a low On-Resistance allowing inputs to be
connected directly to outputs. This device operates as a 24-bit bus
switch or a 12-bit exchanger that provides data exchanging between
the four signal ports via the data select pins (S0-S2).
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
Packaging (Pb-free & Green available):
56-pin 240-mil wide thin plastic TSSOP (A)
56-pin 300-mil wide plastic SSOP (V)
56-pin 173-mil wide plastic TVSOP (K)
Product Pin Configuration
Logic Block Diagram
Product Pin Description
Note:
1. H = High Voltage Level, L = Low Voltage Level,
Z = High Impedance
Truth Table
PI5C16212
n
o
i
t
c
n
u
F
2
S
1
S
0
S
1
A
2
A
t
c
e
n
n
o
c
s
i
D
L
L
L
Z
Z
1
B
o
t
1
A
L
L
H
1
B
Z
2
B
o
t
1
A
L
H
L
2
B
Z
1
B
o
t
2
A
L
H
H
Z
1
B
2
B
o
t
2
A
H
L
L
Z
2
B
t
c
e
n
n
o
c
s
i
D
H
L
H
Z
Z
2
B
o
t
2
A
,
1
B
o
t
1
A
H
H
L
1
B
2
B
1
B
o
t
2
A
,
2
B
o
t
1
A
H
H
H
2
B
1
B
e
m
a
N
n
i
P
O
/
I
n
o
i
t
p
i
r
c
s
e
D
2
S
-
0
S
I
s
t
u
p
n
I
t
c
e
l
e
S
x
A
x
O
/
I
A
s
u
B
x
B
x
O
/
I
B
s
u
B
56-Pin
A, K, V
1 1
A
1 1
B
1 2
A
1 2
B
FLOW CONTROL
ONE OF TWELVE CHANNELS
S
0
S
1
S
2
PI5C16212
24-Bit Bus-Exchange Switch
2
PS7023J 09/09/04
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Storage Temperature .............................................. 65C to +150C
Ambient Temperature with Power Applied ..............40C to +85C
Supply Voltage to Ground Potential .......................... 0.5V to +7.0V
DC Input Voltage ....................................................... 0.5V to +7.0V
DC Output Current ................................................................ 120mA
Power Dissipation ....................................................................... 1W
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
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 10%)
Capacitance
(T
A
= 25C, f = 1 MHz)
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
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.
Recommended Operating Condition
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
r
e
t
e
m
a
r
a
P
n
o
i
t
p
i
r
c
s
e
D
.
n
i
M
.
x
a
M
s
t
i
n
U
V
C
C
e
g
a
tl
o
V
y
l
p
p
u
S
4
5
.
5
V
V
H
I
e
g
a
tl
o
V
t
u
p
n
I
l
e
v
e
L
-
h
g
i
H
2
--
V
L
I
e
g
a
tl
o
V
t
u
p
n
I
l
e
v
e
L
-
w
o
L
--
8
.
0
T
A
e
r
u
t
a
r
e
p
m
e
T
ri
A
-
e
e
r
F
g
n
it
a
r
e
p
O
0
4
5
8
C
s
r
e
t
e
m
a
r
a
P
n
o
i
t
p
i
r
c
s
e
D
s
n
o
i
t
i
d
n
o
C
t
s
e
T
)
1
(
.
n
i
M
p
y
T
)
2
(
.
x
a
M
s
t
i
n
U
V
H
I
e
g
a
tl
o
V
H
G
I
H
t
u
p
n
I
l
e
v
e
L
H
G
I
H
c
i
g
o
L
d
e
e
t
n
a
r
a
u
G
0
.
2
--
--
V
V
L
I
e
g
a
tl
o
V
W
O
L
t
u
p
n
I
l
e
v
e
L
W
O
L
c
i
g
o
L
d
e
e
t
n
a
r
a
u
G
5
.
0
--
8
.
0
I
I
t
n
e
r
r
u
C
t
u
p
n
I
V
C
C
V
,.
x
a
M
=
N
I
V
=
C
C
D
N
G
r
o
--
--
1
A
V
C
C
V
,
0
=
N
I
V
=
C
C
--
--
0
1
I
H
Z
O
t
n
e
r
r
u
C
t
u
p
t
u
O
e
c
n
a
d
e
p
m
I
h
g
i
H
V
-
B
,
A
-
0
C
C
--
--
1
V
K
I
e
g
a
tl
o
V
e
d
o
i
D
p
m
a
l
C
V
C
C
I
,.
n
i
M
=
N
I
A
m
8
1
=
--
7
.
0
2
.
1
V
I
S
O
t
n
e
r
r
u
C
ti
u
c
ri
C
t
r
o
h
S
)
3
(
V
=
)
A
(
B
,
V
0
=
)
B
(
A
C
C
0
0
1
--
--
A
m
V
H
s
n
i
P
l
o
r
t
n
o
C
t
a
s
i
s
e
r
e
t
s
y
H
t
u
p
n
I
--
0
5
1
--
V
m
R
N
O
e
c
n
a
t
s
i
s
e
R
n
O
h
c
ti
w
S
)
4
(
V
C
C
V
,.
n
i
M
=
N
I
,
V
0
.
0
=
I
N
O
A
m
4
6
=
0
2
8
2
0
4
V
C
C
V
,.
n
i
M
=
N
I
,
V
4
.
2
=
I
N
O
A
m
5
1
=
--
--
2
1
0
2
5
3
8
4
s
r
e
t
e
m
a
r
a
P
)
5
(
n
o
i
t
p
i
r
c
s
e
D
s
n
o
i
t
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d
n
o
C
t
s
e
T
.
p
y
T
.
x
a
M
s
t
i
n
U
C
N
I
e
c
n
a
ti
c
a
p
a
C
t
u
p
n
I
V
N
I
V
0
=
3
6
F
p
C
F
F
O
f
f
O
h
c
ti
w
S
,
e
c
n
a
ti
c
a
p
a
C
B
/
A
V
N
I
V
0
=
6
4
1
C
N
O
n
O
h
c
ti
w
S
,
e
c
n
a
ti
c
a
p
a
C
B
/
A
V
N
I
V
0
=
2
1
0
3
PI5C16212
24-Bit Bus-Exchange Switch
3
PS7023J 09/09/04
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Power Supply Characteristics
Notes:
1. For conditions shown as Max. or Min., 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.
PI5C16212 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.
s
r
e
t
e
m
a
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a
P
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p
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=
C
C
--
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5
=
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.
3
=
)
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--
--
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0
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C
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A
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L
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p
0
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5
=
--
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2
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6
PI5C16212
24-Bit Bus-Exchange Switch
4
PS7023J 09/09/04
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56-Pin 173-Mil Wide Plastic TVSOP (K) Package
56-Pin 240-Mil Wide Thin Plastic TSSOP (A) Package
.047
.031
.041
SEATING
PLANE
.016
BSC
1
56
.169
.177
11.20
11.40
4.30
4.50
1.20
0.40
0.13
0.23
0.80
1.05
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
.002
.006
0.05
0.15
.0035
.008
0.09
0.20
.018
.030
0.45
0.75
6.4
.252
BSC
.005
.009
.441
.449
Max.
.002
.006
SEATING PLANE
.007
.011
.004
.008
1
56
.236
.244
0.50
0.17
0.27
0.05
0.15
0.09
0.20
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
.018
.030
0.45
0.75
.047
Max.
1.20
6.0
6.2
.547
.555
13.9
14.1
.319
8.1
.0197
BSC
BSC
PI5C16212
24-Bit Bus-Exchange Switch
5
PS7023J 09/09/04
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Pericom Semiconductor Corporation 1-800-435-2336 www.pericom.com
56-Pin 300-Mil Wide Thin Plastic SSOP (V) Package
0.25
0.20
.025 BSC
0.635
.008
.008
.016
0-8
0.20
0.40
.110 2.79
.010
Gauge Plane
.291
.299
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
7.39
7.59
.396
.416
10.06
10.56
.02
.04
0.51
1.01
.015
.025
0.381
0.635
.720
.730
18.29
18.54
.008
.0135
0.20
0.34
1
56
x 45
Nom.
Max
Ordering Information
Notes:
1. Thermal Characteristics can be found on the world wide web at: www.pericom.com/packaging/
Ordering Code
Package Code
Package Description
PI5C16212K
K
56-pin TVSOP
PI5C16212KE
K
Pb-free & Green, 56-pin TVSOP
PI5C16212A
A
56-pin TSSOP
PI5C16212AE
A
Pb-free & Green, 56-pin TSSOP
PI5C16212V
V
56-pin SSOP
PI5C16212VE
V
Pb-free & Green, 56-pin SSOP
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