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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(A)
- 56-pin 300 mil wide plastic SSOP (V)
Logic Block Diagram
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
Function Table
LES
)2LES/1LES(
LL B,1B=A
HL B,2B=A
XH 2B=Adna1B=A
56-Pin
A, V
STUPNI
NOITCNUF
TSET
Z=
2
Z=
1
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Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
PI5C16233C
16-Bit to 32-Bit Mux/Demux BusSwitch
with Undershoot Protection
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
DC Electrical Characteristics (Over the Operating Range, T
Parameters Description Test Conditions
V
V
I
I
I
V
R
IH
IL
IH
IL
OZH
IK
ON
Input HIGH Voltage G
Input LOW Voltage
Input HIGH Current V
uaranteed Logic HIGH Level
Guaranteed Logic LOW Level
= Max., V
CC
Input LOW Current VCC = Max., VIN = GND ±1 µA
High Impedance Output Current 0≤ A, B ≤ V
Clamp Diode Voltage VCC = Min., IIN = –18mA –0.7 –1.8 V
Switch On Resistance
(3)
VCC = Min.,
A
(1)
= V
IN
CC
VIN = 0.0V, ION = 48mA or 64mA
VCC = 4.0V, VIN = 2.4V, ION = 15mA 10 15
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.
= –40°C to +85°C, VCC = 4.5V to 5.5V)
Min. Typ.
2.0 V
–0.5 0.8 V
CC
(2)
Max. Units
±1 µA
±1 µA
58Ω
Capacitance (TA = 25°C, f = 1 MHz)
Parameters
C
IN
C
ON
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 = 5.0V, 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.
(4)
Description Test Conditions Typ. Units
Input Capacitance VIN = 0V 6 pF
A/B Capacitance, Switch On VIN = 0V 14 pF
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Power Supply Characteristics
Parameters Description Test Conditions
(1)
PI5C16233C
16-Bit to 32-Bit Mux/Demux BusSwitch
with Undershoot Protection
Min. Typ.
(2)
Max. Units
I
CC
Quiescent Power VCC = Max. VIN = GND or V
CC
200 µA
Supply Current
∆
ICC
Supply Current per VCC = Max. VIN = 3.4V
(3)
Input @ TTL HIGH 2.5 mA
I
CCD
Supply Current per VCC = Max. 0.25 mA/
Input per MHz
(4)
A and B Pins Open MHz
Control Input Toggling
50% Duty Cycle
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, +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.
Switching Characteristics over Operating Range
Com.
Parameters Description Conditions
t
t
t
t
t
t
PLH
PHL
PZH
PZL
PHZ
PLZ
Propagation Delay
Ax to Bx, Bx to Ax
Bus Enable Time CL = 50pF 0.5 5.2 ns
SEL to Ax or Bx RL = 500Ω
Bus Disable Time 0.5 5.3
SEL to Ax or Bx
(2,3)
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.
(1)
Min. Max. Units
0.25
Ordering Information
traPegakcaP-niPhtdiW
AC33261C5IP)65A(POSST-65lim-042
VC33261C5IP)65V(POSS-65lim-003
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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