PERICOM PI3C32384

PI3C3384
Ω)
PI3C32384 (25Ω
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
2.5V/3.3V, High Bandwidth, Hot Insertion
10-Bit, 2-Port, Bus Switch
Product Features
Product Description
•
•
•
•
•
•
•
•
•
Pericom Semiconductor’s PI3C series of logic circuits are produced
using the Company’s advanced submicron CMOS technology,
achieving industry performance.
Near-zero propagation delay
Low noise, 25Ω version (PI3C32384)
5Ω switches connect inputs to outputs (PI3C3384)
High Bandwidth (>400 MHz)
Permits Hot Insertion.
Rail-to-Rail, 3.3V or 2.5V Switching
5V I/O Tolerant
2.5V Supply Voltage Operation
Packages available:
– 24-pin 150-mil wide plastic QSOP (Q)
The PI3C3384, and PI3C32384 are 2.5V or 3.3Volt, high bandwidth
10-bit, 2-port bus switches designed with a low ON resistance
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 (BE)
input signal. Two bus enable signals are provided, one for each of
the upper and lower five bits of the two 10-bit buses. The
PI3C32384 is designed with an internal 25Ω resistor reducing
noise reflection in high-speed applications.
– 24-pin 173-mil wide plastic TSSOP (L)
Applications
• High Bandwidth Data switching
• Hot Docking
Logic Block Diagram
Product Pin Configuration
A0
B0
A4
B4
A5
B5
A9
B9
BEA
B0
A0
A1
B1
B2
A2
A3
B3
B4
A4
GND
1
2
3
4
5
6
7
8
9
10
11
12
24-Pin
L,Q
24
23
22
21
20
19
18
17
16
15
14
13
VCC
B9
A9
A8
B8
B7
A7
A6
B6
B5
A5
BEB
BEA
BEB
Truth Table(1)
Product Pin Description
Function
BEA BE B
B0-B4
B5-B9
Disconnect
H
H
Hi-Z
Hi-Z
Connect
L
H
A0-A4
Hi-Z
Connect
H
L
Hi-Z
A5-A9
Connect
L
L
A0-A4
A5-A9
Note:
1. H = High Voltage Level, X = Don’t Care,
L = Low Voltage Level, Hi-Z = High Impedance
Pin Name
BEA, BEB
A0 - A9
B0 - A9
GND
VCC
1
Description
Bus Enable Inputs (Active LOW)
Bus A
Bus B
Ground
Power
PS8161C
02/04/00
Ω)
PI3C3384/PI3C32384 (25Ω
2.5V/3.3V, High Bandwidth,
Hot Insertion, 10-Bit, 2-Port BusSwitch
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
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 +4.6V
Supply Voltage to Ground Potential (Outputs & D/O Only) –0.5V to +4.6V
DC Input Voltage ................................................................... –0.5V to +5.5V
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 Operating Range, TA = –40°C to +85°C, VCC = 3.3V ± 10%)
Parame te rs
Te s t Conditions (1)
De s cription
M in.
Typ.(2)
M ax.
VIH
Input HIGH Voltage
Guaranteed Logic HIGH Level
2.0
—
—
VIL
Input LOW Voltage
Guaranteed Logic LOW Level
–0.5
—
0.8
IIH
Input HIGH Current
VCC = Max., VIN = VCC
—
—
±1
IIL
Input LOW Current
VCC = Max., VIN
—
—
±1
=
GND
IOZH
High- Impedence Output Current 0 ≤ A, B ≤ VCC
—
—
±1
VIK
Clamp diode Voltage
—
–0.73
–1.2
PI3C3384
—
5
7
PI3C32384
18
28
40
PI3C3384
—
8
15
PI3C32384
18
35
48
RON
Switch On Resistance(4)
VCC = Min., IIN = –18mA
VCC = Min.,VIN = 0.0V
ION = 48mA or 64mA
VCC = Min.,VIN = 2.4V
ION = 15mA
Units
V
µA
V
Ω
Capacitance (TA = 25°C f = 1 MHz)
Parame te rs (5)
De s cription
CIN
Input Capacitance
C O FF
A/B Capacitance, Switch Off
CON
A/B Capacitance, Switch On
Te s t Conditions
Typ.
Units
3.5
VIN = 0V
5.0
pF
10.0
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. 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 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.
5. This parameter is determined by device characterization but is not production tested.
2
PS8161C
02/04/00
Ω)
PI3C3384/PI3C32384 (25Ω
2.5V/3.3V, High Bandwidth,
Hot Insertion, 10-Bit, 2-Port BusSwitch
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
Power Supply Characteristics
Te s t Conditions (1)
Parame te rs
De s cription
ICC
Quiescent Power Supply Current
∆ICC
Supply Current per Input
@ TTL HIGH
M in.
Typ.(2)
M ax.
VCC = Max.,
PI3C3384
VIN = GND or VCC PI3C32384
—
260
500
VCC = Max.,
VIN = 3.0V(3)
—
Units
µA
—
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); A and B 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 and B inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is
guaranteed by design.
PI3C3384/PI3C32384 Switching Characteristics over 3.3V Operating Range
Parame te rs
D e s cription
Conditions
(2,3)
tPLH
tPHL
Propogation Delay
Ax to Bx, Bx to Ax
tPZH
tPZL
Bus Enable Time
BEx to Ax or Bx
tPHZ
tPLZ
Bus Disable Time
BEx to Ax or Bx
PI3C3384
PI3C32384
Com.
Com.
(1)
CL = 50pF
RL = 500Ω
CL = 50pF
RL = 500Ω
R = 500Ω
Units
M in.
M ax.
M in.
M ax.
—
0.25
—
1.25
1.5
6.5
1.5
6.5
1.5
5.5
1.5
5.5
ns
PI3C3384/PI3C32384 Switching Characteristics over 2.5V Operating Range
Parame te rs
D e s cription
tPLH
tPHL
Propogation Delay(2,3)
Ax to Bx, Bx to Ax
tPZH
tPZL
Bus Enable Time
BEx to Ax or Bx
tPHZ
tPLZ
Bus Disable Time
BEx to Ax or Bx
Conditions
PI3C3384
PI3C32384
Com.
Com.
(1)
CL = 50pF
RL = 500Ω
CL = 50pF
RL = 500Ω
R = 500Ω
Units
M in.
M ax.
M in.
M ax.
—
0.25
—
1.25
1.5
9.8
1.5
9.8
1.5
8.3
1.5
8.3
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.
3
PS8161C
02/04/00
Ω)
PI3C3384/PI3C32384 (25Ω
2.5V/3.3V, High Bandwidth,
Hot Insertion, 10-Bit, 2-Port BusSwitch
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
4.0
VCC = 3.3V
3.1V
2.9V
2.7V
2.5V
VOUT, (V)
2.3V
3.8V
3.6V
3.4V
3.2V
3.0V
2.8V
2.0
0.0
0.0
1.0
3.0
2.0
4.0
5.0
VIN, (V)
Output Voltage vs. Input Voltage over Various Supply Voltages
Ordering Information
Part
Pin - Package
Dime ns ions
PI3C3384L
24 - TSSOP (L)
–40°C to +85°C
PI3C3384Q
24 - QSOP (Q )
–40°C to +85°C
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
4
PS8161C
02/04/00