Datasheet PI5C32390Q, PI5C32390S, PI5C3390Q, PI5C3390S Datasheet (PERICOM)

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PS7030A 11/25/96

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Product Features:

• Near-zero propagation delay

• Low noise, 25Ω version (PI5C32390)

•5Ω switches connect inputs to outputs (PI5C3390)

• Direct bus connection when switches are ON

• Ultra-low quiescent power (0.2µA typical)
– Ideally suited for notebook applications

• Packages available:
– 28-pin 150-mil wide plastic QSOP (Q)
– 28-pin 300-mil wide plastic SOIC (S)

AEN BEN A Sw B Sw Function

H H Of f Of f Disconnect
L H On Off A to C
H L Off On B to C
L L On On A, B to C

Truth Table

(1)

Note:

1. H= High Voltage Level
L = Low Voltage Level

Product Pin Configuration

Logic Block Diagram

Product Pin Description

Pin Name I/O Description

AEN, BEN I Bus Output Enable (Active LOW)
A0-A7 I/O Bus A
B0-B7 I/O Bus B
C0-C7 I/O Bus C

PI5C3390

PI5C32390 (25

ΩΩ

ΩΩ

Ω)

16-to-8 Multiplexer/Demultiplexer

BusSwitch

Product Description:

Pericom Semiconductor’s PI5C series of logic circuits are produced
in the Company’s advanced 0.8 micron CMOS technology, achieving
industry leading performance.

The PI5C3390 and PI5C32390 are 16-to-8 multiplexer/
demultiplexer bus switches with a low ON resistance allowing
inputs to be connected directly to outputs. The two enable inputs
connect each of eight I/O to the common I/O pin. This multiplexer
function can be used to select and route logic signals to form
crossbar switches, isolate bus capacitance, or provide a zero delay
switch connection. The bus switch creates no additional ground
bounce noise or additional propagation delay. The PI5C32390 is
designed with an internal 25Ω resistor reducing noise reflection in
high-speed applications.

AEN

A7

A0

C7

C0

BEN

B7

B0

V

CC

128

A

7

B

0

227

B

7

C

0

326

C

7

A

1

425

A

6

B

1

524

B

6

C

1

623

C

6

A

2

722

A

5

B

2

821

B

5

C

2

920

C

5

A

3

10 19

B

3

11

C

3

12

AEN 13

GND 14

A

4

18

B

4

17

C

4

16

BEN15

A

0

28-PIN

Q, S

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PS7030A 11/25/96

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PI5C3390/PI5C32390

16:8 MULTIPLEXER/DEMULTIPLEXER

BUSSWITCH

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 .............................................................................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 the Operating Range, TA = –40°C to +85°C, VCC = 5V ±5%)

Parameters Description Test Conditions

(1)

Min. Ty p

(2)

Max. Units

VIH Input HIGH Voltage Guaranteed Logic HIGH Level 2.0 — — V
VIL Input LOW Voltage Guaranteed Logic LOW Level –0.5 — 0.8 V
IIH Input HIGH Current VCC = Max., VIN = VCC ——±1µA
IIL Input LOW Current VCC = Max., VIN = GND — — ±1 µA
IOZH High Impedance Output Current 0 ≤ A, B, C ≤ VCC ——±1µA
VIK Clamp Diode Voltage VCC = Min., IIN = –18 mA –0.7 –1.2

V
IOS Short Circuit Current

(3)

A, B (C) = 0V, C (A, B) = VCC 100 — — m A
VH Input Hysteresis at Control Pins — 150 — mV
RON Switch On Resistance

(4)

VCC = Min., VIN = 0.0V, PI5C3390 — 5 7 Ω

ION = 48 mA PI5C32390 20 28 40

VCC = Min., VIN = 2.4V, PI5C3390 — 10 15 Ω

ION = 15 mA PI5C32390 20 35 48

Capacitance (TA = 25°C, f = 1 MHz)

Parameters

(5)

Description Test Conditions Typ Units

CIN Input Capacitance VIN = 0V 6 pF
COFF A/B Capacitance, Switch Off VIN = 0V 6 pF

CON A/B Capacitance, Switch On VIN = 0V 8 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 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, B, and C pins at indicated current through the switch. ON resistance is determined by
the lower of the voltages on the two (A,B,C) pins.

5. This parameter is determined by device characterization but is not production tested.

PI5C3390/PI5C32390

16:8 MULTIPLEXER/DEMULTIPLEXER

BUSSWITCH

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PS7030A 11/25/96

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Power Supply Characteristics

Parameters Description Test Conditions

(1)

Min. Typ

(2)

Ma x. Units

ICC Quiescent Power VCC = Max. VIN = GND or VCC — 0.2 30 µA

Supply Current

∆ICC Supply Current per VCC = Max. VIN = 3.4V

(3)

— — 3.5 mA

Input @ TTL HIGH

ICCD Supply Current per VCC = Max., — — 0.25 mA/

Input per MHz

(4)

A, B, and C Pins Open MHz
BE = GND
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 (VIN = 3.4V, control inputs only); A, B, and C 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, B, and C inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is
guaranteed by design.

5 . Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested.

PI5C3390 Switching Characteristics over Operating Range

PI5C3390

Com

Parameters Description Conditions

(1)

Min. Typ. Max. Unit

tPLH Propagation Delay

(2,3)

CL = 50 pF — 0 .2 5 — n s

tPHL A, B to/from C RL = 500

Ω

tPZH Bus Enable Time 1.5 — 6.5 n s

tPZL AEN/BEN to A, B, C

tPHZ Bus Disable Time 1.5 — 5.5 ns

tPLZ AEN/BEN to A, B, C

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 0.25 ns for 50 pF 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.

PI5C32390 Switching Characteristics over Operating Range

PI5C32390

Com

Parameters Description Conditions

(1)

Min. Typ. Max. Unit

tPLH Propagation Delay

(2,3)

CL = 50 pF — 1 .2 5 — n s

tPHL A, B to/from C RL = 500

Ω

tPZH Bus Enable Time 1.5 — 6.5 n s

tPZL AEN/BEN to A, B, C

tPHZ Bus Disable Time 1.5 — 5.5 ns

tPLZ AEN/BEN to A, B, C

Pericom Semiconductor Corporation

2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax [phone] • http://www.pericom.com