PI5C16211
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
24-Bit Bus Switch
Product Features
• Near-zero propagation delay
• 5Ω switches connect inputs to outputs
• Direct bus connection when switches are ON
• Ultra-low quiescent power (0.2 µA 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)
Product Description
Pericom Semiconductor’s PI5C series of logic circuits are produced
using the Company’s advanced 0.6 micron CMOS technology.
The PI5C16211 is a 24-bit bus switch designed with a low ON
resistance allowing inputs to be connected directly to outputs. This
device operates as a 24-bit or a 12-bit bus switch, which provides
high speed bus switching.
Logic Block Diagram
Product Pin Configuration
NC
1
A
1
1
A
2
1
A
3
1A1
1B1
1
2
3
4
5
6
7
8
9
10
56
55
54
53
52
51
50
49
48
47
1
OE
1
2
OE
1
B
1
1
B
2
1
B
3
1
B
4
1
B
5
1A12
1B12
1
A
4
1
A
5
1
A
6
GND
1
A
7
1
A
8
1
A
9
GND
1
B
6
1
B
7
1
B
8
1
B
9
1
B
10
1
B
11
1
B
12
2
B
1
2
B
2
2
B
3
1OE
2A1
2B1
1
A
10
1
A
11
11
46
12
45
56-Pin
13
44
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
2A12
2B12
1
A
12
2
A
1
2
A
2
A, K,V
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
V
CC
2
A
3
GND
GND
2
B
4
2
B
5
2
B
6
2
B
7
2
B
8
2
B
9
2
B
10
2
B
11
2
B
12
2OE
2
A
4
2
A
5
2
A
6
2
A
7
Truth Table
1OE
L
L
H
H
Note:
2
A
8
2
A
9
2OE
L
H
L
H
1A, 1B I/Os
1A = 1B
1A = 1B
Z
Z
2A, 2B I/Os
2A = 2B
Z
2A = 2B
Z
2
A
10
2
A
11
2
A
12
Product Pin Description
Pin Name
S0-S2
xAx
xB
x
1
1. H = High Voltage Level
L = Low Voltage Level
Z = High Impedance
I/O
I
I/O
I/O
Description
Select Inputs
Bus A
Bus B
PS7050B
12/09/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16211
24-Bit Bus Switch
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 +7.0V
Supply Voltage to Ground Potential (Outputs & D/O Only) ........... –0.5V to +7.0V
DC Input Voltage ............................................................................ –0.5V to +7.0V
DC Output Current ...................................................................................... 120mA
Power Dissipation ..........................................................................................1.4W
Note:
Stresses greater than those listed under MAXI-
MUM 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 reli-
ability.
DC Electrical Characteristics
(Over the Operating Range, T
A
= –40°C to +85°C, V
CC
= 5V ±10%)
Parameters
V
IK
I
I
I
CC
∆
I
CC
Description
Clamp Diode Voltage
Input LOW Current
Test Conditions
V
CC
= 4.5V, I
I
= –18mA
V
CC
= 5.5V, V
I
= V
CC
or GND
V
CC
= 0V, V
I
= 5.5V
V
CC
= 5.5V, V
I
= V
CC
or GND
V
CC
= 5.5V, One input at 3.4V,
other inputs at V
CC
or GND
V
I
= 3V or 0
V
O
= 3V or 0,
OE
= V
CC
V
CC
= 4.0V, V
I
= 2.4V, I
I
= 15 mA
V
CC
= 4.5V, V
I
= 0V, I
I
= 64 mA
V
CC
= 4.5V, V
I
= 0V, I
I
= 30 mA
V
CC
= 4.5V, V
I
= 2.4V, I
I
= 15 mA
Min.
—
—
—
—
—
—
—
—
—
—
—
Typ
(1)
—
—
—
—
—
4.5
5.5
14
5
5
8
Max.
–1.2
10
±1
3.0
2.5
—
—
20
7
7
12
Units
V
µA
mA
Quiescent Power Supply Current
Supply Current per Control Input
@ TTL High
Control Input Capacitance
C
I(2)
C
IO
(
OFF
)
(2)
A/B Switch OFF Capacitance
R
Switch On Resistance(3)
ON
pF
Ω
Notes:
1. Typical values are at V
CC
= 5.0V, T
A
= 25°C ambient and maximum loading.
2. This parameter is determined by device characterization but is not production tested.
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.
2
PS7050B
12/09/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16211
24-Bit Bus Switch
Power Supply Characteristics
Parame te rs
V
CC
V
IH
V
IL
T
A
D e s cription
Supply Voltage
High Level Input Voltage
Low Level Input Voltage
O perating Free- Air temp
M in.
4.0
2.0
- 40
Typ
(1)
M ax.
5.5
0.8
85
Units
V
V
V
°C
Note:
1. Typical values are at V
CC
= 5.0V, +25°C ambient.
Switching Characteristics over Operating Range
From
(INPUT)
A or B
OE
OE
To
(OUTPUT)
B or A
A or B
A or B
Te s t
Conditions
C
L
= 50pF
R
L
= 500
Ω
V
CC
= 5 V ± 0.5 V
M in.
3.9
3.3
M ax.
0.25
9.3
8.5
V
CC
= 4 V
M in.
M ax.
0.25
10.1
7.1
ns
Units
Parame te rs
t
PD
(1)
t
EN
t
DIS
Notes:
1. This parameter is guaranteed but not tested on Propagation Delays. 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.
Ordering Information
Part
PI5C16211A
PI5C16211K
PI5C16211V
Pin-Package
56 - TSSO P (A)
56 - TSSO P (K )
56 - TSSO P (V)
Te mpe rature
40°C to +85°C
40°C to +85°C
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
3
PS7050B
12/09/99