PI5C3390QE

PI5C3390,
Ω)
PI5C32390 (25Ω
16-to-8 Multiplexer/Demultiplexer Bus Switch
Features:
Description:
•
•
•
•
•
Near-Zero propagation delay
Low noise, 25-ohm version (PI5C32390)
5-ohm switches connect inputs to outputs (PI5C3390)
Direct bus connection when switches are ON
Ultra-low quiescent power (0.2μA typical)
– Ideally suited for notebook applications
• Packaging (Pb-free & Green available):
— 28-pin 150-mil wide plastic QSOP (Q)
Pericom Semiconductor’s PI5C3390 and PI5C32390 are 16-to-8
multiplexer/demultiplexer bus switches with a low On-Resistance
allowing inputs to be connected directly to outputs. The two enable
inputs connect each of eight I/O to the common I/O pin. This
multiplexer function can be used to select and route logic signals to
form crossbar switches, isolate bus capacitance, or provide a zero
delay switch connection. The bus switch creates no additional
ground bounce noise or additional propagation delay. The PI5C32390
is designed with an internal 25-ohm resistor reducing noise reflection
in high-speed applications.
Block Diagram
Pin Configuration
A0
C0
A7
C7
AEN
B0
B7
Truth Table(1)
BEN
H
H
L
L
1
28
VCC
B0
2
27
A7
C0
3
26
B7
A1
4
25
C7
B1
5
24
A6
C1
A2
6
7
23
22
B6
C6
B2
8
21
A5
C2
9
20
B5
A3
B3
10
11
C3
12
13
14
19
18
17
C5
A4
B4
16
C4
15
BEN
AEN
GND
BEN
AEN
H
L
H
L
A0
Pin Description
A Sw
Off
On
Off
On
B Sw
Off
Off
On
On
Function
Disconnect
A to C
B to C
A, B to C
Pin Name
AEN, BEN
A0-A7
B0-B7
C0-C7
I/O
I
I/O
I/O
I/O
Description
Bus Output Enable (Active LOW)
Bus A
Bus B
Bus C
Note:
1. H = High Voltage Level
L = Low Voltage Level
07-0126
1
PS7030J
05/02/07
PI5C3390; PI5C32390
16:8 Multiplexer/Demultiplexer 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 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, TA = –40°C to +85°C, VCC = 5V ±5%)
Test Conditions(1)
Parameters Description
Min.
VIH
Input HIGH Voltage
Guaranteed Logic HIGH Level
2.0
VIL
Input LOW Voltage
Guaranteed Logic LOW Level
–0.5
IIH
Input HIGH Current
IIL
Typ(2)
Max.
Units
V
0.8
V
VCC = Max., VIN = VCC
±1
μA
Input LOW Current
VCC = Max., VIN = GND
±1
μA
IOZ
High Impedance Output Current
0 ≤ A, B, C ≤ VCC
±1
μA
VIK
Clamp Diode Voltage
VCC = Min., IIN = –18 mA
–1.2
V
IOS
Short Circuit Current(3)
C = 0V; A, B = VCC
VH
Input Hysteresis at Control Pins
RON
Switch On Resistance
(4)
–0.7
100
mA
150
mV
VCC = Min., VIN = 0.0V,
ION = 48 mA
PI5C3390
PI5C32390
5
28
7
40
ohm
20
VCC = Min., VIN = 2.4V,
ION = 15 mA
PI5C3390
PI5C32390
10
35
15
48
ohm
20
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, 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, B, and C pins at indicated current through the switch. On-Resistance is determined by the lower of
the voltages on the two (A,B,C) pins.
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(1)
Description
Test Conditions
Typ
Units
CIN
COFF
Input Capacitance
A/B Capacitance, Switch Off
VIN = 0V
VIN = 0V
6
6
pF
pF
CON
A/B Capacitance, Switch On
VIN = 0V
16
pF
Notes:
1. This parameter is determined by device characterization but is not production tested.
07-0126
2
PS7030J
05/02/07
PI5C3390; PI5C32390
16:8 Multiplexer/Demultiplexer Bus Switch
Power Supply Characteristics
Test Conditions(1)
Parameters Description
Min.
ICC
Quiescent Power
Supply Current
VCC = Max.
VIN = GND or VCC
ΔICC
Supply Current per
Input @ TTL HIGH
VCC = Max.
VIN = 3.4V(3)
ICCD
Supply Current per
Input per MHz(4)
VCC = Max.,
A, B, and C Pins Open
BE = GND
Control Input Toggling
50% Duty Cycle
Typ(2)
Max.
Units
0.2
30
μA
3.5
mA
0.25
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 (VIN = 3.4V, control inputs only); A, B, and C 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, B, and C inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is guaranteed by design.
PI5C3390 Switching Characteristics over Operating Range
Parameters
t PLH
t PHL
tPZH
tPZL
tPHZ
tPLZ
Description
Conditions(1)
Propagation Delay(2,3)
A, B to/from C
Bus Enable Time
AEN/BEN to A, B, C
Bus Disable Time
AEN/BEN to A, B, C
CL = 50 pF
RL = 500-ohm
PI5C3390
Com
Typ.
Min.
Max.
0.25
Unit
ns
1.5
6.5
ns
1.5
5.5
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.
07-0126
3
PS7030J
05/02/07
PI5C3390; PI5C32390
16:8 Multiplexer/Demultiplexer Bus Switch
PI5C32390 Switching Characteristics over Operating Range
Parameters
t PLH
t PHL
tPZH
tPZL
tPHZ
tPLZ
Description
Conditions(1)
Propagation Delay(2,3)
A, B to/from C
Bus Enable Time
AEN/BEN to A, B, C
Bus Disable Time
AEN/BEN to A, B, C
CL = 50 pF
RL = 500-ohm
PI5C32390
Com
Typ.
Min.
Max.
1.25
Unit
ns
1.5
6.5
ns
1.5
5.5
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.
Test Circuit
Switch Position
7V
VCC
Open
500Ω
VIN
D.U.T.
50pF
RT
CL
500Ω
Enable and Disable Timing Diagram
Enable
Propagation Delay Diagram
Disable
Same Phase
Input Transisiton
3V
1.5V
Control
Input
1.5V
3V
3V
Output
1.5V
0.3V
tPZH
Output
Normally
High
tPLH
tPLZ
Switch
1.5V
0V
VOH
1.5V
1.5V
VOL
tPZH
Switch
GND
tPHL
VOL
tPLH
0.3V
3V
1.5V
1.5V
0V
0V
tPZL
Output
Normally
Low
Switch
Closed
Closed
Open
Definitions:
CL = Load capacitance (includes jig and
probe capacitance)
RT = Termination resistance (should be
equal to ZOUT of the pulse generator)
VOUT
Pulse
Generator
Test
Disable LOW
Enable LOW
tPD
tPHL
3V
VOH
Opposite Phase
Input Transisiton
0V
1.5V
0V
1. Input Control Enable = Low; Input Control Disable = High
2. Pulse Generator for all pulses:
Rate <1.0 MHz; ZOUT <50Ω; tF, tR <2.5ns
07-0126
4
PS7030J
05/02/07
PI5C3390; PI5C32390
16:8 Multiplexer/Demultiplexer Bus Switch
Packaging Mechanical: 28-pin QSOP (Q)
$/#5-%.4#/.42/,./
0$
2%6)3)/.%
-).
$!4%
'UAGE0LANE
ƒƒ
$ETAIL!
2%&
2%&
Xƒ
$ETAIL!
3%!4).'
0,!.%
"3#
888 $%./4%3$)-%.3)/.3
888 ).-),,)-%4%23
3HULFRP6HPLFRQGXFWRU&RUSRUDWLRQ
1VW6WUHHW6DQ-RVH&$
‡ZZZSHULFRPFRP
.OTE
#ONTROLLINGDIMENSIONSININCHES
2EF*%$%#-/"!&
$%3#2)04)/.0IN-IL7IDE13/0
0!#+!'%#/$%1
Ordering Information
Ordering Code
Package Code
Package Description
PI5C3390Q
Q
28-pin 150-mil wide plastic QSOP
PI5C3390QE
Q
Pb-free & Green, 28-pin 150-mil wide plastic QSOP
PI5C32390Q
Q
28-pin 150-mil wide plastic QSOP
PI5C32390QE
Q
Pb-free & Green, 28-pin 150-mil wide plastic QSOP
Notes:
• Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
• E = Pb-free & Green
• Adding an X suffix = Tape/Reel
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
07-0126
5
PS7030J
05/02/07