PI3B16244AEX

1
PS8170D 10/01/04
Features
Near-Zero propagation delay
5-ohm switches connect inputs to outputs when enabled
Fast Switching Speed - 4ns max.
Pin compatible with 74 series 16244
Operating Vcc: 3.0V to 3.6V
Industrial operating temperature: –40°C to +85°C
Packaging (Pb-free & Green available):
– 48-pin 240 mil wide thin plastic TSSOP (A)
– 48-pin 300 mil wide plastic SSOP (V)
Description
Pericom Semiconductor’s PI3B16244 is a 16-bit, 4-port bus switch
that is pin compatible with the 74 series 16244 16-bit driver. Four
enable signals (nBE) turn the switch on similar to the enable signals
of the 16244. The bus switch creates no additional propagation
delay or ground bounce noise.
PI3B16244
3.3V, 16-Bit, 4-Port NanoSwitch
Block Diagram
Pin Description
Truth Table
(1)
Note:
1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
Pin Configuration
1BE 1
1B0 2
1B1 3
GND 4
1B2 5
1B3 6
V
CC 7
2B0 8
2B1 9
GND 10
2B2 11
2B3 12
3B0 13
3B1 14
GND 15
3B2 16
3B3 17
VCC 18
4B0 19
4B1 20
GND 21
4B2 22
4B3 23
4BE 24
2BE48
1A047
1A146
GND45
1A244
1A343
V
CC42
2A041
2A140
GND39
2A238
2A337
3A036
3A135
GND34
3A233
3A332
VCC31
4A030
4A129
GND28
4A227
4A326
3BE25
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tcennocsiDHZ-iH
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7An-0AnO/IAsuB
7Bn-0BnO/IBsuB
2BE
1BE
1
B
1
1
B
0
1
A
1
1
A
0
1
B
1
1
B
0
1
A
3
1
A
2
2
B
1
2
B
0
2
A
1
2
A
0
2
B
3
2
B
2
2
A
3
2
A
2
4BE
3BE
3
B
1
3
B
0
3
A
1
3
A
0
3
B
1
3
B
0
3
A
3
3
A
2
4
B
1
4
B
0
4
A
1
4
A
0
4
B
3
4
B
2
4
A
3
4
A
2
BA
BE
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
PI3B16244
3.3V, 16-Bit, 4-Port NanoSwitch
2
PS8170D 10/01/04
DC Electrical Characteristics (Over the Operating Range, T
A
= –40°C to +85°C, V
CC
= 3.0V to 3.6V)
Capacitance (T
A
= 25°C, f = 1 MHz)
Storage Temperature ...................................................... –65°C to +150°C
Ambient Temperature with Power Applied ...................... –40°C to +85°C
Supply Voltage Range ....................................................... –0.5V to +4.6V
DC Input Voltage ............................................................... –0.5V to +4.6V
DC Output Current ........................................................................120 mA
Power Dissipation ............................................................................. 0.5W
Note:
Stresses greater than those listed under MAXIMUM RAT-
INGS 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.
Maximum Ratings
(Above which useful life may be impaired. For user guidelines, not tested.)
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 3.3V, T
A
= 25°C ambient and maximum loading.
3. 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.
4. This parameter is determined by device characterization but is not production tested.
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.niM.pyT
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.xaMstinU
V
HI
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V
LI
egatloVWOLtupnIleveLWOLcigoLdeetnarauG5.0–8.0
I
HI
tnerruCHGIHtupnIV
CC
V,.xaM=
NI
V=
CC
1±
Aµ
I
LI
tnerruCWOLtupnIV
CC
V,.xaM=
NI
DNG=1±
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HZO
tnerruCtuptuOecnadepmIhgiH0 B,A V
CC
1±
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KI
egatloVedoiDpmalCV
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NI
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R
NO
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V
CC
V,.niM=
NI
I,V0.0=
NO
Am84=58
V
CC
V,.niM=
NI
I,V4.2=
NO
Am51=0151
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)4(
noitpircseDsnoitidnoCtseT.pyTstinU
C
NI
ecnaticapaCtupnI
V
NI
V0=
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NO
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PI3B16244
3.3V, 16-Bit, 4-Port NanoSwitch
3
PS8170D 10/01/04
Power Supply Characteristics
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
= 3.3V, +25°C ambient.
3. Per TTL driven input (control inputs only); A and B pins do not contribute to I
CC
.
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
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.
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)1(
.niMepyT
)2(
.xaMstinU
I
CC
rewoPtnecseiuQ
tnerruCylppuS
V
CC
.xaM=V
NI
VroDNG=
CC
—— 01
Aµ
I
CC
reptnerruCylppuS
HGIHLTT@tupnI
V
CC
.xaM=V
NI
V0.3=
)3(
—— 057
I
DCC
reptnerruCylppuS
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)4(
V
CC
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elcyCytuD%05
—— 52.0/Am
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snoitidnoC
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t
HLP
t
LHP
yaleDnoitagaporP
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xAotxB,xBotxA
C
L
Fp05=
R
L
005=
52.0
sn
t
HZP
t
LZP
emiTelbanEsuB
xBroxAotxEB
C
L
Fp05=
R
L
005=
005=R
15.4
t
ZHP
t
ZLP
emiTelbasiDsuB
xBroxAotxEB
10.5
Applications Information
Logic Inputs
Logic control inputs can be driven up to +5.5V regardless of the supply voltage. For example, given a 5.0V supply, the control or
select pins may be driven low to 0V and high to 5.5V. Driving the control or select pins Rail-toRail
®
minimizes power consumption.
Power-Supply Sequencing and Hot Plug Information
Proper power-supply sequencing is recommended for all CMOS devices. Always apply V
CC
and GND before applying signals to the
input/output or control pins.

PI3B16244AEX

Mfr. #:
Manufacturer:
Diodes Incorporated
Description:
Digital Bus Switch ICs 3.3V 16B Bus Switch
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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