Logic Block Diagram
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21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16233C
16-Bit to 32-Bit Mux/Demux BusSwitch
with Undershoot Protection
Product Features
5Ω switch connection between two ports
Near zero propagation delay
-1.5V Input undershoot protection
Fast switching speed: 5.0ns (max.)
Ultra -low quiescent power (70µA typical)
- ideal for notebook applications.
• Industrial operating temperature: -40ºC to 85ºC
• Package options:
- 56-pin 240 mil wide plastic TSSOP(A56)
- 56-pin 300 mil wide plastic SSOP (V56)
•
•
•
•
•
Product Description
Pericom Semiconductor’s PI5C series of logic circuits are produced
using the Company’s advanced submicron CMOS technology.
The PI5C16233C is a 16-bit to 32-bit mux/demux switch. This
device can be used for memory bank interleaving. The PI5C16233C
can be used as two 8-bit to 16-bit multiplexers or as one 16-bit to
32-bit multiplexer.
Two select inputs (SEL1 and SEL2) control the data flow. When the
TEST inputs are asserted HIGH, the A port is connected to both the
B1 and the B2 ports.
Product Pin Configuration
56-Pin
A56
V56
Function Table
INPUTS
SEL
(SEL1/SEL2)
L
H
X
FUNCTION
TEST
L
L
H
A = B1, B
2
= Z
A = B2, B
1
= Z
A = B1 and A= B2
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PI5C16233C
16-Bit to 32-Bit Mux/Demux BusSwitch
with Undershoot Protection
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 Range ........................................................ –0.5V to +7V
DC Input Voltage ............................................................... –0.5V to +7V
DC Output Current ....................................................................... 120mA
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 indi-
cated 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 the Operating Range, T
A
= –40°C to +85°C, V
CC
= 4.5V to 5.5V)
Parameters
V
IH
V
IL
I
IH
I
IL
I
OZH
V
IK
R
ON
Description
Input HIGH Voltage
Input LOW Voltage
Input HIGH Current
Input LOW Current
High Impedance Output Current
Clamp Diode Voltage
Switch On Resistance
(3)
Test Conditions
(1)
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
V
CC
= Max., V
IN
= V
CC
V
CC
= Max., V
IN
= GND
0≤ A, B
≤
V
CC
V
CC
= Min., I
IN
= –18mA
V
CC
= Min., V
IN
= 0.0V, I
ON
= 48mA or 64mA
V
CC
= 4.0V, V
IN
= 2.4V, I
ON
= 15mA
–0.7
5
10
Min. Typ.
(2)
Max.
2.0
–0.5
0.8
±1
±1
±1
–1.8
8
15
Units
V
V
µA
µA
µA
V
Ω
Capacitance
(T
A
= 25°C, f = 1 MHz)
Parameters
(4)
C
IN
C
ON
Description
Input Capacitance
A/B Capacitance, Switch On
Test Conditions
V
IN
= 0V
V
IN
= 0V
Typ.
6
14
Units
pF
pF
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
= 5.0V, 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.
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Power Supply Characteristics
Parameters Description
I
CC
∆
I
CC
Quiescent Power
Supply Current
Supply Current per
Input @ TTL HIGH
Supply Current per
Input per MHz
(4)
Test Conditions
(1)
V
CC
= Max.
V
CC
= Max.
V
IN
= GND or V
CC
V
IN
= 3.4V(3)
2.5
V
CC
= Max.
A and B Pins Open
Control Input Toggling
50% Duty Cycle
0.25
mA
mA/
MHz
Min.
Typ.
(2)
Max.
200
Units
µA
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PI5C16233C
16-Bit to 32-Bit Mux/Demux BusSwitch
with Undershoot Protection
I
CCD
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
= 5.0V, +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.
Switching Characteristics over Operating Range
Parameters
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Description
Propagation Delay
(2,3)
Ax to Bx, Bx to Ax
Bus Enable Time
SEL to Ax or Bx
Bus Disable Time
SEL to Ax or Bx
Conditions
(1)
Com.
Min. Max.
0.25
C
L
= 50pF
R
L
= 500Ω
0.5
0.5
5.2
5.3
ns
Units
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.
Ordering Information
Part
PI5C16233CA
PI5C16233CV
Pin - Package
56- TSSOP (A56)
56- SSOP (V56)
Width
240- mil
300- mil
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
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PS8361A
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