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PI3B16245VE

P1-P3P4-P5
1
PS8189E 10/01/04
NC 1
1
B
0
2
1
B
1
3
GND 4
1
B
2
5
1
B
3
6
V
CC
7
1
B
4
8
1
B
5
9
GND 10
1
B
6
11
1
B
7
12
2
B
0
13
2
B
1
14
GND 15
2
B
2
16
2
B
3
17
V
CC
18
2
B
4
19
2
B
5
20
GND 21
2
B
6
22
2
B
7
23
NC 24
1
BE48
1
A
0
47
1
A
1
46
GND45
1
A
2
44
1
A
3
43
V
CC
42
1
A
4
41
1
A
5
40
GND39
1
A
6
38
1
A
7
37
2
A
0
36
2
A
1
35
GND34
2
A
2
33
2
A
3
32
V
CC
31
2
A
4
30
2
A
5
29
GND28
2
A
6
27
2
A
7
26
2
BE25
Features
• Near-Zero propagation delay
• 5-ohm switches connect inputs to outputs
• Fast Switching Speed - 4ns max.
• Pin compatible with 74 series 16245
• Operating V
CC
Range: 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)
PI3B16245
3.3V, 16-Bit, 2-Port NanoSwitch™
Block Diagram
Pin Configuration
Description
Pericom Semiconductor’s PI3B16245 is a 3.3 volt, hot-insertion, 16-
bit, 2-port bus switch that is pin compatible with the 74 series 16245
16-bit transceiver. Two enable signals (nBE) turn the switches on
similar to the enable signals of the 16245. The bus switch creates no
additional propagation delay or additional ground bounce noise.
Pin Description
Truth Table
(1)
Note:
1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
noitcnuFEBn7-0An
tcennocsiDHZ-iH
tcennoCL7-0Bn
emaNniPO/InoitpircseD
EBnI )woLevitcA(elbanEtuptuOsuB
7An-0AnO/IAsuB
7Bn-0BnO/IBsuB
1
BE
1
A
7
1
A
0
1
B
7
1
B
0
2
BE
2
A
7
2
A
0
2
B
7
2
B
0
BA
BE
SW
SW
SW
SW
SW
2
PS8189E 10/01/04
PI3B16245
3.3V, 16-Bit, 2-Port NanoSwitch™
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.
sretemaraPnoitpircseDsnoitidnoCtseT
)1(
.niM.pyT
)2(
.xaMstinU
V
HI
egatloVHGIHtupnIHGIHcigoLdeetnarauG
leveL
0.2
V
V
LI
egatloVWOLtupnIWOLcigoLdeetnarauG
leveL
5.0–8.0
I
HI
tnerruCHGIHtupnIV
CC
V,.xaM=
NI
V=
CC
1±
Aµ
I
LI
tnerruCWOLtupnIV
CC
V,.xaM=
NI
DNG=1±
I
HZO
tnerruCtuptuOecnadepmIhgiH0≤ B,A ≤ V
CC
1±
V
KI
egatloVedoiDpmalCV
CC
I,.niM=
NI
Am81–=7.0–2.1–V
R
NO
ecnatsiseRNOhctiwS
)3(
V
CC
V,.niM=
NI
,V0.0=
I
NO
Am84=
58
Ω
V
CC
V,.niM=
NI
,V4.2=
I
NO
Am51=
0151
sretemaraP
)4(
noitpircseDsnoitidnoCtseT.pyTstinU
C
NI
ecnaticapaCtupnI
V
NI
V0=
0.3
FpC
FFO
ffOhctiwS,ecnaticapaCB/A5.8
C
NO
nOhctiwS,ecnaticapaCB/A0.71
3
PS8189E 10/01/04
PI3B16245
3.3V, 16-Bit, 2-Port NanoSwitch™
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.
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.
Power Supply Characteristics
sretemaraPnoitpircseDsnoitidnoC
)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
zHMreptupnI
)4(
V
CC
,.xaM=
nepOsniPBdnaA
gnilggoTtupnIlortnoC
elcyCytuD%05
—— 52.0/Am
zHM
Switching Characteristics over Operating Range
sretemaraPnoitpircseD
snoitidnoC
)1(
.moC
stinU
.niM.xaM
t
HLP
t
LHP
yaleDnoitagaporP
)3,2(
xAotxB,xBotxA
C
L
Fp05=
R
L
005= Ω
52.0
sn
t
HZP
t
LZP
emiTelbanEsuB
xBroxAotxEB
C
L
;Fp05=
R
L
005= Ω
15.4
t
ZHP
t
ZLP
emiTelbasiDsuB
xBroxAotxEB
C
L
;Fp05=
R
L
005= Ω
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.
P1-P3P4-P5

PI3B16245VE

Mfr. #:
Buy PI3B16245VE
Manufacturer:
Diodes Incorporated
Description:
Digital Bus Switch ICs 3.3V 16B Bus Switch
Lifecycle:
New from this manufacturer.
Delivery:
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