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Pericom Semiconductor Corporation |
PI3B16210
PI3B162210 (25Ω)1122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122
3.3V, Hot Insertion 20-Bit, 2-Port BusSwitch
Product Features
• Near-zero propagation delay
• 5Ω or 25Ω switches connect inputs to outputs
• Fair Switching Speed - 4.5ns max.
• 32X384 function with flow through pinout make board
layout easier
• Permits Hot Insertion.
• Vcc Operating Range: 3.0V to 3.6V
• Industrial operating temperature: –40°C to +85°C
• Packages available:
– 48-pin 150-mil wide plastic QSOP (B)
– 48-pin 240-mil wide plastic TSSOP (A)
– 48-pin 300-mil wide plastic SSOP (V)
Product Description
Pericom Semiconductor’s PI3B series of BusSwitch circuits are
produced in the Company’s advanced 0.35 micron CMOS
technology, achieving industry leading speed.
The PI3B16210 is configured as 3.3 volt 20-bit, 2-port bus
switches designed with a low ON resistance (5Ω) allowing inputs
to be connected directly to outputs. The bus switch creates no
additional propagational delay or additional ground bounce noise.
The switches are turned ON by the Bus Enable (xOE) input signal.
The PI3B162210 device has a built-in 25-ohm series resistor to
reduce noise resulting from reflections, thus eliminating the need
for an external terminating resistor.
Logic Block Diagram
Product Pin Configuration
1A1 1B1
1A10
1OE
2A1
1B10
2B1
48-Pin
2A10
2B10
2OE
Truth Table(1)
Inputs
Inputs/Outputs
1OE 2OE 1A,1B 2A,2B
L L 1A = 1B 2A = 2B
L H 1A = 1B Z
HL
Z 2A = 2B
HH
Z
Note:
1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
Z
Product Pin Description
Pin Name
1OE, 2OE
1A1-1A10, 2A1-2A10
1B1 - 1B10, 2B1 - 2B10
Description
Bus Enable Inputs (Active LOW)
Bus A
Bus B
1 PS8193B 11/09/98
PI3B16210/162210
1122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445536677.88399V001122,33H445566o77t8899I00n1122s11e22r3344t55i66o77n8899,001122203344-55B6677i88t99,0021122-33P4455o66r7788t9900B1122u11s2233S44w556677i88t99c00h1122
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 .................................. –0°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 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 opera-
tional 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 = 3.0V to 3.6V)
Parameters Description
VIH Input HIGH Voltage
VIL Input LOW Voltage
II Input Current
IOZH High Impedance Output Current
VIK Clamp Diode Voltage
RON Switch On Resistance(3)
Test Conditions(1)
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
VCC = Max. VIN = VCC or GND
VCC = 0V, VIN = VCC
0 ≤ A, B ≤ VCC
VCC = Min, IIN = –18mA
VCC = 3V, VIN = 0.0V,
ION = 24 mA, 64mA
16210
162210
VCC = 3V, VIN = 2.4V,
ION = 15mA
16210
162210
Min.
2.0
–0.5
—
—
—
—
—
20
—
20
Typ(2)
—
—
—
—
—
–0.7
5
28
—
35
Max.
—
0.8
±1
±1
10
–1.2
8
40
15
48
Units
V
V
µA
µA
µA
V
Ω
Ω
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(4) Description
CIN
COFF
CON
Input Capacitance
A/B Capacitance, Switch OFF
A/B Capacitance, Switch ON
Test Conditions
VIN = 0V
VIN = 0V
VIN = 5V
Typ Units
3.0
8.5 pF
17.0
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 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.
2 PS8193B 11/09/98
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