PERICOM PI3B3253LEX

PI3B3253
3.3V, Dual 4:1 Mux/DeMux NanoSwitch™
Features
Description
• Near-Zero propagation delay
Pericom Semiconductor’s PI3B3253 is a 3.3V, Dual4:1 Multiplexer/ Demultiplexer with Hi-Z outputs that is pinout compatible
with the PI74FCT253T, 74F253, and 74ALS/AS/LS 253. Inputs
can be connected to outputs with low On-Resistance (5Ω) with no
additional ground bounce noise or propagation delay.
• 5Ω switches connect inputs to outputs
• Fast Switching Speed: 5.2ns max.
• Ultra Low Quiescent Power (0.2µA typical) – Ideally suited for notebook applications
• Pin compatible with 74 series 253 logic devices
• Packaging (Pb-free & Green available):
– 16-pin 150-mil wide plastic QSOP (Q)
– 16-pin 173-mil wide plastic TSSOP (L)
Pin Configuration
Block Diagram
IA1
IA0
IA2
IA3
IB0
IB1
IB2
IB3
SW
EA
SW
SW
SW
EB
SW
Y
I
S0
SW
SW
S1
E
SW
SW
YA
1
16
VCC
S1
2
15
EB
IA3
3
14
S0
IA2
4
13
IB3
IA1
5
12
IB2
IA0
6
11
IB1
YA
7
10
IB0
GND
8
9
YB
YB
Truth Table(1)
Enable
EA
Pin Description
Select
YA
YB
Function
EA
EB
S1
S0
H
X
X
X
Hi-Z
X
Disable A
X
H
X
X
X
Hi-Z
Disable B
L
L
L
L
IA 0
IB0
S1-0 = 0
L
L
L
H
IA 1
IB1
S1-0 = 1
L
L
H
L
IA 2
IB2
S1-0 = 2
L
L
H
H
IA 3
IB3
S1-0 = 3
Pin Name
IAN, IBN
S0-1
EA, EB
YA, YB
GND
VCC
Description
Data Inputs
Select Inputs
Enable
Data Outputs
Ground
Power
Note: 1.
H = High Voltage Level, L = Low Voltage Level
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PI3B3253
3.3V, Dual 4:1 Mux/DeMux NanoSwitch™
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
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.
Storage Temperature...................................................................... –65°C to +150°C
Ambient Temperature with Power Applied..................................... –40°C to +85°C
Supply Voltage to Ground Potential ................................................–0.5V to +4.6V
DC Input Voltage..............................................................................–0.5V to +4.6V
DC Output Current......................................................................................... 120mA
Power Dissipation............................................................................................. 0.5W
DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC =3.3V ±10%)
Parameters
Test Conditions(1)
Description
Min.
Typ.(2)
Max.
VIH
Input HIGH Voltage
Guaranteed Logic HIGH Level
2.0
VIL
Input LOW Voltage
Guaranteed Logic LOW Level
–0.5
IIH
Input HIGH Current
VCC = Max., VIN = VCC
±1
IIL
Input LOW Current
VCC = Max., VIN = GND
±1
IOZH
High Impedance Output Current
0 ≤ IN, YN ≤ VCC
±1
VIK
Clamp Diode Voltage
VCC = Min., IIN = –18mA
RON
Switch
On-Resistance(3)
Units
V
0.8
µA
–1.2
VCC = Min., VIN = 0.0V,
ION = 48mA or 64mA
5
8
VCC = Min., VIN = 2.4V, ION = 15mA
10
17
V
Ω
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 = 3.3V, TA = 25°C ambient and maximum loading.
3. Measured by the voltage drop between I and Y pin at indicated current through the switch. On-Resistance is determined by the lower of the
voltages on the two (I,Y) pins.
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(1)
CIN
Description
Test Conditions
Input Capacitance
COFF
IA/IB Capacitance, Switch Off
CON
IA/IB Capacitance, Switch On
Typ.
Units
3.0
VIN = 0V
8.0
pF
36.0
Notes:
1. This parameter is determined by device characterization but is not production tested.
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PI3B3253
3.3V, Dual 4:1 Mux/DeMux NanoSwitch™
Power Supply Characteristics
Parameters
Test Conditions(1)
Description
ICC
Quiescent Power Supply Current
ΔICC
Supply Current per Input @ TTL HIGH
VCC = Max.
VCC = Max.
Min.
Typ.(2)
Max.
0.1
3.0
VIN = GND
or VCC
VIN =
Units
µA
3.0V(3)
750
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at VCC = 3.3V, +25°C ambient.
3. Per TTL driven input (control inputs only); I and Y pins do not contribute to ICC.
Switching Characteristics over Operating Range
Parameters
Description
tIY
Propagation Delay(1,2) In to Yn
tSY
Bus Select Time, Sn to Yn
tPZH
Bus Enable Time, E to Yn
tPHZ
tPLZ
Bus Disable Time, En to Y
Test Conditions
Com.
Min.
Max.
Units
0.25
CL = 50pF
RL = 500Ω
1
4.0
1
3.8
1
5.2
ns
Notes:
1. This parameter is guaranteed but not tested on Propagation Delays.
2. 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.
Applications Information
Logic Inputs
The logic control inputs can be driven up to +3.6V regardless of the supply voltage. For example, given a +3.3V supply, IN may be
driven low to 0V and high to 3.6V. Driving IN Rail-to-Rail® minimizes power consumption.
Power-Supply Sequencing and Hot Plug Information
Proper power-supply sequencing is recommended for all CMOS devices. Always apply VCC and GND before applying signals to input/output or control pins.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
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PI3B3253
3.3V, Dual 4:1 Mux/DeMux NanoSwitch™
Packaging Mechanical: 16-Pin QSOP (Q)
16
.008
0.20
MIN.
.150
.157
3.81
3.99
Guage Plane
.010
0.254
1
.041
1.04
REF
.015 x 45° 0.38
.053 1.35
.069 1.75
Detail A
.008
.012
0.203
0.305
.007
.010
0.178
0.254
0.41 .016
1.27 .050
SEATING
PLANE
11-0009
0˚-6˚
.016
.035
0.41
0.89
Detail A
.189
.197
4.80
5.00
.008
0.203 REF
.025
BSC
0.635
.008
.013
0.20
0.33
.228
.244
5.79
6.19
.004 0.101
.010 0.254
X.XX DENOTES DIMENSIONS IN MILLIMETERS
X.XX
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01/10/11
PI3B3253
3.3V, Dual 4:1 Mux/DeMux NanoSwitch™
Packaging Mechanical: 16-Pin TSSOP (L)
16
.169
.177
1
.193
.201
4.9
5.1
4.3
4.5
.004
.008
.047
max.
1.20
0.45 .018
0.75 .030
SEATING
PLANE
.0256
BSC
0.65
.007
.012
.002
.006
0.09
0.20
.252
BSC
6.4
0.05
0.15
0.19
0.30
Ordering Information
Ordering Code
Package Code
Package Desciption
PI3B3253QE
Q
Pb-free & Green, 16-pin QSOP
PI3B3253LE
L
Pb-free & Green, 16-pin TSSOP
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
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