PERICOM PI5C162292

PI5C16292
Ω)
PI5C162292 (25Ω
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24-Bit Mux/Demux Bus Switch
Features
Description
•
•
•
•
•
Pericom Semiconductor’s PI5C series of logic circuits are produced
using the Company’s advanced 0.6 micron CMOS technology.
Near-zero propagation delay
5Ω switches connect inputs to outputs
Direct bus connection when switches are ON
Internal 500Ω pull-down on A2 ports
Ultra-low quiescent power (0.2µA typical)
– Ideally suited for notebook applications
• Industrial operating temperature: –40°C to +85°C
• Make-before-break switching
• Packages available:
– 56-pin 240-mil wide thin plastic TSSOP (A)
– 56-pin 300-mil wide plastic SSOP (V)
The PI5C16292 and PI5C162292 are 12-bit to 24-bit Mux/Demux
Bus switches designed with a low ON resistance allowing inputs
to be connected directly to outputs.
The PI5C162292 device has a built-in 25-ohm series resistor to
reduce noise resulting from reflections, thus eliminating the need
for an external terminating resistor.
A2 port is not externally connected and, as a result, has an internal
500-ohm pulldown resistor to ground.
Pin Configuration
Applications
• Memory switching
S0
1A1
Logic Block Diagram
NC1
2A 1
NC1
3A1
NC1
GND
4A1
NC1
5A1
NC1
6A1
NC1
Ω
7A1
NC1
VCC
8A1
GND
NC1
9A1
Truth Table
Function
A1 to B1, A2 to B2
A1 to B2, A2 to B1
S0
L
H
A1
B1
B2
NC1
A2
B2
B1
10A1
NC1
11A1
NC1
Note:
1. H = High Voltage Level
L = Low Voltage Level
Z = High Impedance
12A1
NC1
1
2
3
4
5
6
7
8
9
56
55
54
53
52
51
50
49
48
10
47
11
46
12 56-Pin 45
A,V 44
13
14
43
15
42
16
41
17
40
18
39
19
38
20
21
22
23
24
25
26
27
28
37
36
35
34
33
32
31
30
29
NC
NC
1B1
1B 2
2B1
2B 2
3B1
GND
3B 2
4B1
4B 2
5B1
5B 2
6B1
6B 2
7B1
7B 2
8B1
GND
8B2
9B1
9B 2
10B1
10B2
11B1
11B2
12B1
12B2
Product Pin Description
Pin Name
S0
xA1
xBx
NC
NC1
1
I/O
I
I/O
I/O
Description
Select Inputs
Bus A
Bus B
Internally pulled up thru 4.7k resistor
Leave it unconnected
PS8139C
01/11/00
PI5C16292/162292
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Ω)
24-Bit Mux/Demux BusSwitch (25Ω
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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 ........................................................................................ 1Watt
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.
Recommended Operating Condition
Parameter
Description
Min.
Max.
Units
VCC
VIH
Supply Voltage
High-Level Input Voltage
4
2
5.5
—
V
V
VIL
Low-Level Input Voltage
—
0.8
V
TA
Operating Free-Air Temperature
–40
85
°C
DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 5V ±10%)
Test Conditions(1)
Parameters Description
Min.
Typ(2)
Max.
Units
VIH
Input HIGH Voltage
Guaranteed Logic HIGH Level
2.0
—
—
V
VIL
Input LOW Voltage
Guaranteed Logic LOW Level
–0.5
—
0.8
V
II
Input Current
VCC = Max., VIN = VCC or GND
VCC = 0, VIN = VCC
—
—
—
—
±1
10
µA
µA
VIK
Clamp Diode Voltage
VCC = Min., IIN = –18mA
—
–0.7
–1.2
V
100
—
—
mA
—
150
—
mV
16292
—
5
7
Ω
162292
20
28
40
16292
—
—
12
162292
20
35
48
(3)
IOS
Short Circuit Current
VH
Input Hysteresis at Control Pins
rON
Switch On Resistance(4)
A(B) = 0V, B (A) = VCC
VCC = Min., VIN = 0.0V,
ION = 64mA
VCC = Min., VIN = 2.4V,
ION = 15mA
Ω
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(5)
Description
Test Conditions
Max.
Units
CIN
COFF
Input Capacitance
A/B Capacitance, Switch Off
VIN = 0V
VIN = 0V
6
10
pF
pF
CON
A/B Capacitance, Switch On
VIN = 0V
20
pF
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, TA = 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
PS8139C
01/11/00
PI5C16292/162292
Ω)
24-Bit
Mux/Demux
BusSwitch (25Ω
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Power Supply Characteristics
Parameters
Test Conditions(1) Min.
Description
Typ(2)
Max.
Units
ICC
Quiescent Power
Supply Current
VCC = MAX.
VIN = GND or VCC
—
0.1
3.0
µA
∆ICC(3)
Supply Current for
S0 @ TTL HIGH
VCC = MAX.
VIN = 3.4 V(4)
Other Inputs at VCC OR GND
—
—
2.5
mA
ICCD
Supply Current for
S0 per MHz(5)
Toggling 50% Duty Cycle
VCC = Max.,
A and B Pins Open
—
—
0.75
mA/
MHz
Notes:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for applicable device.
2. Typical values are at VCC = 5.0V, +25°C ambient.
3. This is the increase in supply current for S0 at the specified TTL voltage level rather than VCC or GND.
4. Per TTL driven input (VIN = 3.4V, S0 only); A and B pins do not contribute to ICC.
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.
PI5C16292 Switching Characteristics over Operating Range
PI5C16292
Com.
Parameters
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tM
Description
Conditions(1)
Propagation Delay(2,3)
xA1 to xBx, xBx to xA1
CL = 50pF
Bus Enable time
RL = 500Ω
S to xA1 or xBx
R = 500Ω to 7V(4)
Bus Disable time
S to xA1 or xBx
Make-before-break time(2)
Min
Max
Units
—
0.25
ns
1.5
6.5
ns
1.5
1.5
0
7
8
2
ns
ns
PI5C162292 Switching Characteristics over Operating Range
PI5C162292
Com.
Parameters
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tM
Description
Conditions(1)
Propagation Delay(2,3)
xA1 to xBx, xBx to xA1
Bus Enable Time
S to xA1 or xBx
Bus Disable Time
S to xA1 or xBx
Make-before-break time(2)
CL = 50pF
RL = 500Ω
R = 500Ω to 7V(4)
Min
Max
Units
—
1.25
ns
1.5
6.5
ns
1.5
1.5
7
8
ns
0
2
ns
Notes:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested.
3. The bus switch contributes no propagational delay other than the RC delay of the ON resistance of the switch and 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 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.
4. Applies to tPLZ and tPZL.
3
PS8139C
01/11/00
PI5C16292/162292
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Ω)
24-Bit Mux/Demux BusSwitch (25Ω
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56-Pin SSOP (300 Mil Wide) - Package Code: V
56
.396
.416
10.06
10.56
.291
.299
7.39
7.59
Gauge Plane
.010 0.25
1
.720 18.29
.730 18.54
.02
.04
0.51
1.01
.015 0.381 x 45˚
.025 0.635
.008
0.20
Nom.
.110 2.79 Max
.025 BSC
0.635
.008
.0135
0.20
0.34
.008 0.20
.016 0.40
0-8˚
X.XX DENOTES DIMENSIONS
X.XX IN MILLIMETERS
56-Pin TSSOP (240 Mil Wide) - Package Code: A
56
.236
.244
1
.547
.555
6.0
6.2
13.9
14.1
1.20
.047
Max.
SEATING PLANE
.004 0.09
.008 0.20
0.45 .018
0.75 .030
.0197
BSC
0.50
.002
.006
0.05
0.15
.07
.011
0.17
0.27
.319 BSC
8.1
X.XX DENOTES DIMENSIONS
X.XX IN MILLIMETERS
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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PS8139C
01/11/00