ETC PI5C162212K

PI5C16212
Ω)
PI5C162212 (25Ω
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24-Bit Bus Exchange Switch
Product Features
Product Description
•
•
•
•
Near-zero propagation delay
5-ohm switches connect inputs to outputs
Direct bus connection when switches are ON
Ultra-low quiescent power (0.1µA typical)
– Ideally suited for notebook applications
• Industrial operating temperature: –40°C to +85°C
• Packages available:
– 56-pin 173-mil wide plastic TVSOP (K)
– 56-pin 240-mil wide thin plastic TSSOP (A)
– 56-pin 300-mil wide plastic SSOP (V)
Pericom Semiconductor’s PI5C series of logic circuits are produced
using the Company’s advanced submicron CMOS technology.
The PI5C16212 and PI5C162212 are 24-bit bus exchange switches
designed with a low ON resistance allowing inputs to be connected
directly to outputs. This device operates as a 24-bit bus switch
or a 12-bit exchanger that provides data exchanging between
the four signal ports via the data select pins (S0-S2).
To reduce noise resulting from reflections, the PI5C162212 has a
built-in 25-ohm series resistor that eliminates the need for an
external terminating resistor.
Product Pin Configuration
Logic Block Diagram
S0
1A1
ONE OF TWELVE CHANNELS
1A2
1 B1
1A1
2 A1
2A2
3A1
3A2
GND
4A1
1 B2
1A2
4A2
5A1
FLOW CONTROL
5A2
6A1
S0
S1
S2
6A2
7A1
7A2
VCC
8A1
GND
Truth Table
Function
8A2
S2
S1
S0
A1
A2
Disconnect
L
L
L
Z
Z
A1 to B1
L
L
H
B1
Z
A1 to B2
L
H
L
B2
Z
A2 to B1
L
H
H
Z
B1
A2 to B2
H
L
L
Z
B2
Disconnect
H
L
H
Z
Z
A1 to B1, A2 to B2
H
H
L
B1
B2
A1 to B2, A2 to B1
H
H
H
B2
B1
9A1
9A2
10A1
10A2
11A1
11A2
12A1
12A2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56-Pin
A, K, V
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
S1
S2
1B1
1 B2
2B1
2 B2
3B1
GND
3 B2
4B1
4 B2
5B1
5 B2
6B1
6 B2
7B1
7 B2
8 B1
GND
8 B2
9B1
9 B2
10B1
10B2
11B1
11B2
12B1
12B2
Product Pin Description
Note:
1. H = High Voltage Level
L = Low Voltage Level
Z = High Impedance
1
Pin Name
I/O
De s cription
S0- S2
I
Select Inputs
xAx
I/O
Bus A
xBx
I/O
Bus B
PS7023F
12/12/01
PI5C16212/162212
24-Bit
Bus-Exchange
Switch
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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 .......................... –0.5V to +7.0V
DC Input Voltage ....................................................... –0.5V to +7.0V
DC Output Current ................................................................ 120mA
Power Dissipation ....................................................................... 1W
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.
Recommended Operating Condition
Parame te r
D e s cription
M in.
M ax.
VCC
Supply Voltage
4
5.5
VIH
High- Level Input Voltage
2
—
VIL
Low- Level Input Voltage
—
0.8
TA
O perating Free- Air Temperature
–40
85
Units
V
°C
DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 5V ±10%)
Parame te rs
De s cription
Te s t Conditions (1)
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
—
Input Current
VCC = Max., VIN = VCC or GND
—
—
±1
VCC = 0, VIN = VCC
—
—
10
II
Units
V
0.8
µA
IOZH
High Impedance Output Current
0 ­ A, B ­ VCC
—
—
±1
VIK
Clamp Diode Voltage
VCC = Min., IIN = –18mA
—
–0.7
–1.2
V
A (B) = 0V, B (A) = VCC
100
—
—
mA
—
150
—
mV
Current(3)
IOS
Short Circuit
VH
Input Hysteresis at Control Pins
RON
Switch On
Resistance(4)
VCC = Min., VIN = 0.0V,
ION = 64mA
16212
—
5
7
162212
20
28
40
VCC = Min., VIN = 2.4V,
ION = 15mA
16212
—
—
12
162212
20
35
48
Ω
Capacitance (TA = 25°C, f = 1 MHz)
Parame te rs (5)
Te s t Conditions
Typ.
M ax.
Input Capacitance
VIN = 0V
3
6
CO F F
A/B Capacitance, Switch Off
VIN = 0V
6
14
CO N
A/B Capacitance, Switch On
VIN = 0V
8
30
C IN
De s cription
Units
pF
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at VCC = 5.0V, 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
PS7023F
12/12/01
PI5C16212/162212
24-Bit
Bus-Exchange
Switch
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Power Supply Characteristics
Parame te rs
ICC
∆ICC(3)
ICCD
Te s t Conditions (1)
De s cription
M in.
Typ.(2)
M ax.
Units
Quiescent Power Supply Current
VCC = Max.
VIN = GND or VCC
—
0.1
3.0
µA
Supply Current per Input @ TTL HIGH
VCC = 3.6V
VIN = 2.7V(4)
—
—
0.2
mA
Supply Current per Input per MHz(5)
SN = GND, Control Input Toggling
50% Duty Cycle
VCC = Max.,
A & B Pins Open
—
—
0.25
mA/
MHz
Notes:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for applicable device.
2. Typical values are at VCC = 5.0V, +25°C ambient.
3. This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
4. Per TTL driven input (VIN = 2.7V, control inputs only); A and B pins do not contribute to ICC.
5. 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.
PI5C16212 Switching Characteristics over Operating Range
PI5C16212
Parame te rs
Conditions (1)
D e s cription
tPLH
tPHL
Propagation Delay(2,3), xAx to xBx, xBx to xAx
tPLH
tPHL
Propagation Delay, S to Ax or Bx
tPZH
tPZL
Bus Enable Time, S to xAx or xBx
tPHZ
tPLZ
Bus Disable Time, S to xAx or xBx
CL = 50pF
RL = 500 ohms
Com.
M in.
M ax.
—
0.25
1.5
7.5
Units
ns
1.5
7.0
1.5
6.5
PI5C162212 Switching Characteristics over Operating Range
PI5C162212
Parame te rs
Conditions (1)
D e s cription
tPLH
tPHL
Propagation Delay(2,3), xAx to xBx, xBx to xAx
tPZH
tPZL
Bus Enable Time, S to xAx or xBx
tPHZ
tPLZ
Bus Disable Time, S to xAx or xBx
CL = 50pF
RL = 500 ohms
Com.
M in.
M ax.
—
1.25
1.5
7.0
1.5
6.5
Units
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
PS7023F
12/12/01
PI5C16212/162212
24-Bit
Bus-Exchange
Switch
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56-Pin 173-Mil Wide Plastic TVSOP (K) Package
56
4.30
4.50
.169
.177
0.09
0.20
.0035
.008
1
.441
.449
0.45 .018
0.75 .030
.031
.041
0.80
1.05
11.20
11.40
.252
BSC
6.4
SEATING
PLANE
.016
BSC
0.40
X.XX
X.XX
.047
1.20
Max.
.002
.006
0.05
0.15
.005
.009
0.13
0.23
DENOTES DIMENSIONS
IN MILLIMETERS
56-Pin 240-Mil Wide Thin Plastic TSSOP (A) Package
56
.236
.244
1
.547
.555
6.0
6.2
13.9
14.1
1.20
.047
Max.
SEATING PLANE
.004 0.09
.008 0.20
.0197
BSC
0.50
X.XX DENOTES DIMENSIONS
X.XX IN MILLIMETERS
.007
.011
0.17
0.27
4
.002
.006
0.05
0.15
0.45 .018
0.75 .030
.319 BSC
8.1
PS7023F
12/12/01
PI5C16212/162212
24-Bit
Bus-Exchange
Switch
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56-Pin 300-Mil Wide Thin Plastic SSOP (V) Package
56
.291
.299
7.39
7.59
.396
.416
10.06
10.56
Gauge Plane
.02
.04
0.51
1.01
.010 0.25
1
.720 18.29
.730 18.54
.015 0.381 x 45˚
.025 0.635
.008
0.20
Nom.
.110 2.79 Max
.008
.0135
0.20
0.34
.025 BSC
0.635
X.XX DENOTES DIMENSIONS
X.XX IN MILLIMETERS
0-8˚
.008 0.20
.016 0.40
Ordering Information
Orde ring Code
Package Name
Package Type
Te mpe rature Range
PI5C16212K
K 56
56- pin TVSO P
–40 to 85°C
PI5C162212K
K 56
56- pin TVSO P
–40 to 85°C
PI5C16212A
A56
56- pin TSSO P
–40 to 85°C
PI5C162212A
A56
56- pin TSSO P
–40 to 85°C
PI5C16212V
V56
56- pin SSO P
–40 to 85°C
PI5C162212V
V56
56- pin SSO P
–40 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
5
PS7023F
12/12/01