PI5C16210
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
20-Bit, 2-Port Bus Switch
Product Features:
Near-zero propagation delay
5
Ohm
switches connect inputs to outputs
Direct bus connection when switches are ON
32X384 function with flow through pinout make board
layout easier
• Ultra-low quiescent power (0.5µW typical)
– ideally suited for notebook applications
• Industrial operating temperature: –40°C to +85°C
• Packages available:
– 48-pin 150-mil wide plastic BQSOP (B)
– 48-pin 173-mil wide plastic TVSOP (K)
– 48-pin 240-mil wide plastic TSSOP (A)
– 48-pin 300-mil wide plastic SSOP (V)
•
•
•
•
Product Description:
Pericom Semiconductor’s PI5C series of BusSwitch circuits are
produced in the Company’s advanced sub-micron CMOS
technology, achieving industry leading speed.
The PI5C16210 is configured as 20-bit, 2-port bus switches
designed with a low ON resistance (5
Ohm)
allowing inputs to be
connected directly to outputs. The bus switch creates no additional
propagational delay or additional ground bounce noise. The
switches are turned ON by the Bus Enable (xOE) input signal.
Product Pin Configuration
NC
1A
1
1A
2
1A
3
1A
4
1A
5
1A
6
GND
1A
7
1A
8
1A
9
1A
10
2A
1
2A
2
V
CC
2A
3
GND
2A
4
2A
5
2A
6
2A
7
2A
8
2A
9
2A
10
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
1OE
2OE
1B
1
1B
2
1B
3
1B
4
1B
5
GND
1B
6
1B
7
1B
8
1B
9
1B
10
2B
1
2B
2
2B
3
GND
2B
4
2B
5
2B
6
2B
7
2B
8
2B
9
2B
10
Logic Block Diagram
1A
1
1B
1
1A
10
1B
10
1OE
2A
1
2B
1
48-Pin
A48
B48
K48
V48
2A
10
2B
10
2OE
Truth Table
(1)
Inputs
1O E
L
L
H
H
2O E
L
H
L
H
Inputs /Outputs
1A,1B
1A = 1B
1A = 1B
Z
Z
2A,2B
2A = 2B
Z
2A = 2B
Z
Product Pin Description
Pin Name
1OE, 2OE
1A1-1A10, 2A1-2A10
1B1 - 1B10, 2B1 - 2B10
Description
Bus Enable Inputs (Active LOW)
Bus A
Bus B
Note:
1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
1
PS8140A
05/08/02
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16210
20-Bit, 2-Port Bus 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 ................................................................................... 120 mA
Power Dissipation ......................................................................................... 0.5W
Note:
Stresses greater than those listed under MAXI-
MUM 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 reli-
ability.
DC Electrical Characteristics
(Over the Operating Range, T
A
= –40°C to +85°C, V
CC
= 4 to 5V)
Parameters Description
V
IH
V
IL
I
I
Input HIGH Voltage
Input LOW Voltage
Input Current
Test Conditions
(1)
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
CC
= 5.5V., V
IN
= 5.5V
OR
GND
V
CC
= 0V, V
IN
= V
CC
I
OZH
V
IK
V
I
OS
V
H
R
ON
High Impedance Output Current
Clamp Diode Voltage
Short Circuit Current
(3)
Input Hysteresis at Control Pins
Switch On Resistance
(4)
V
CC
= 4.5V, V
IN
= 0.0V, I
ON
= 30 mA, 64 mA
V
CC
= 4.5V, V
IN
= 2.4V, I
ON
= 15 mA
V
CC
= 4 V, V
IN
= 2.4V, I
ON
= 15 mA
0
≤
A, B
≤
V
CC
V
CC
= 4.5V, I
IN
= –18 mA
A (B) = 0V, B (A) = V
CC
100
—
—
—
—
Min.
2.0
–0.5
±1
—
—
Typ
(2)
—
—
—
—
—
—
—
150
5
—
14
Max.
—
0.8
—
±1
10
–0.7
—
—
7
15
20
Units
V
V
µA
µA
µA
–1.2
mA
mV
ohm
ohm
ohm
Capacitance
(T
A
= 25°C, f = 1 MHz)
Parameters
(5)
C
IN
C
OFF
Description
Input Capacitance
A/B Capacitance, Switch Off
Test Conditions
V
IN
= 0V or 3V
V
IN
= 0V or 3V
Typ
4.5
5.5
Units
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.
2
PS8140A
05/08/02
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16210
20-Bit, 2-Port Bus 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
Control Input Toggling
50% Duty Cycle
V
IN
= GND or V
CC
V
IN
= 3.4V
(3)
Min.
Typ
(2)
0.1
Max.
10
2.5
0.25
Units
µA
mA
mA/
MHz
Notes:
1. For Max. or Min. conditions, 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.
Switching Characteristics over Operating Range
PI5C16210
Vcc = 5V ±0.5V
Parameters
Description
Conditions
(1)
Min
Max
V
CC
= 4V
Min
Max
Unit
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Propagation Delay
(2,3)
Ax to Bx, Bx to Ax
Bus Enable Time
X
OE to Ax or Bx
Bus Disable Time
X
OE to Ax or Bx
C
L
= 50 pF
R
L
= 500ohm
1.5
1.5
0.25
6.5
5.5
0.25
6.3
5.5
ns
ns
ns
Notes:
1. See test circuit and wave forms.
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 0.25 ns for 50 pF 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.
3
PS8140A
05/08/02
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16210
20-Bit, 2-Port Bus Switch
Packaging Mechanical: 48-pin BQSOP (B48)
48
.150
.157
3.80
4.00
.228
.244
5.80
6.20
Gauge Plane
.010 0.25
BSC
.386
.394
9.80
10.00
.020
.029
0.50
0.75
1
.015 0.381 x 45˚
.008 0.20
Nom
Nom
.063 1.60
.079
2.0
Max
.002 0.05
.009 0.25
.014 0.356
REF
5˚
.0157 BSC
0.40
X.XX DENOTES DIMENSIONS
X.XX IN MILLIMETERS
.0051
.009
0.13
0.23
Packaging Mechanical: 48-pin TVSOP (K48)
48
.169
.177
4.30
4.50
.0035
.008
0.09
0.20
1
.378 9.60
.386 9.80
.031
.041
0.80
1.05
0.45 .018
0.75 .030
.252
BSC
6.4
SEATING
PLANE
X.XX DENOTES DIMENSIONS
X.XX IN MILLIMETERS
.016
BSC
0.40
.0051
.009
0.13
0.23
.002
.006
0.05
0.15
Max.
.047
1.20
4
PS8140A
05/08/02
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16210
20-Bit, 2-Port Bus Switch
Packaging Mechanical: 48-pin TSSOP (A48)
48
.236
.244
6.0
6.2
1
.488 12.4
.496 12.6
.047
1.20 Max
SEATING PLANE
.004 0.09
.008 0.20
0.45 .018
0.75 .030
.319
BSC
8.1
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
.0197
BSC
0.50
.007
.010
0.17
0.27
.002
.006
0.05
0.15
Packaging Mechanical: 48-pin SSOP (V48)
48
.291
.299
7.39
7.59
.395
.420
10.03
10.67
Gauge Plane
.010 0.25
1
.620
.630
15.75
16.00
.02 0.51
.04 1.01
.008
0.20
Nom.
.015 0.381 x 45˚
.025 0.635
.110 2.79
Max
.025 BSC
0.635
X.XX DENOTES DIMENSIONS
X.XX IN MILLIMETERS
.008 0.20
.0135 0.34
0-8˚
.008 0.20
.016 0.40
5
PS8140A
05/08/02
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