Datasheet PI3C16234A Datasheet (PERICOM)

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PI3C16234

3.3V, High Bandwidth, 16-Bit to 32-Bit
Mux/Demux BusSwitch

Product Features

RON is 9 Ohm Typical
 Pulldown on B Ports
 Low Power: 1mW
 Industrial Operation Temperature: 40ºC to 85ºC
 Near Zero Propagation Delay
 Switching Speed: 4.5ns max. (for 3.3V operation)
 Channel ON capacitance: 9pF (typ.)
VCC Operating Range: +2 to +3.6V
 >100 MHz Bandwidth
 Packages: 56-Pin TSSOP

Logic Block Diagram

1

A

1

16

A

1

SEL

Function Table

noitceleSnoitcnuF

1

B

1

1

B

2

16B1

B

16

Product Description

Pericom Semiconductors PI3C series of logic circuits are produced
using the Companys advanced submicron CMOS technology.

The PI3C16234 is a 16-bit to 32-bit mux/demux switch. Industry
leading advantages include almost zero propagation delay of 500ps
because of the 9ohm channel resistance and low I/O
capacitance. A1 port demultiplexes to either port B1 or B2 and the
switch is bidirectional.

Application

Private Memory Module Switching

Product Pin Configuration

V

NC

1

CC

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

1B1
2B1
2A1
3B1
4B1
4A1

GND

5B1
6B1
6A1
7B1

8B1
8A1
9B1

2

10B1
10A1

11B1
12B1
12A1

V

13B1
14B1
14A1
15B1
16B1
16A1

SEL

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

CC

1A1
1B2
2B2
3A1
3B2
4B2
GND

5A1
5B2
6B2
7A1
7B2
8B2
9A1
9B2
10B2
11A1
11B2
12B2

GND
13A1
13B2

14B2
15A1
15B2
16B2

NC

LnΑ notl Βl
HnΑ notl Β2

Note: n = 116

1

PS8459D 03/13/01

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3.3V, High Bandwidth, 16-Bit to 32-Bit Mux/Demux BusSwitch

Maximum Ratings

(Above which the useful life may be impaired. For user guidelines, not tested.)

PI3C16234

Storage Temperature ....................................................... 65°C to +150°C

Ambient Temperature with Power Applied ....................... 40°C to +85°C

Supply Voltage Range ....................................................... 0.5V to +4.6V

DC I/O Voltage ................................................................... 0.5V to +5.5V

DC Output Current ......................................................................... 120mA

Power Dissipation ............................................................................. 0.5W

DC Electrical Characteristics (Over the Operating Range T

= 40ºC to 85ºC V

A

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.

Parameters Description Test Conditions

V

IH

V

IL

I

IH

I

IL

I

O

Input HIGH Voltage
Input LOW Voltage
Input HIGH Current
Input LOW Current
B-port Pulldown Current

Guaranteed Logic HIGH Level

Guaranteed Logic LOW Level

VCC = Max., VIN = V

CC

VCC = Max., VIN = GND

V

= Min., VO = V

CC

CC

SEL = High for B1, SEL = Low for B2

V

IK

R

ON

Clamp Diode Voltage V

Switch On Resistance

(4)

CC =

Min

= 18mA  0.73 1.2

., IIN

VCC = Min., VIN = 0.0V,

ION = 48mA

or 64mA

VCC = Min., VIN = 2.4V,

ION =15mA

CC

(1)

= 3.3V ±10%)

Min. Typ

0.5  0.8

(1)

Max. Un it s

2.0  
V

±1
±1

µA

2.5 3.6  mA

912

Ω

1623

Capacitance (T

Parameters

C

IN

C

ON

= 25°C, f = 1 MHz)

A

(5)

Description Test Conditions Typ. Max. Un i t s

Input Capacitance V
A/B Capacitance, Switch On V

= 0V 3.5  pF

IN

= 0V 9.3 11 pF

IN

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 = 3.3V, 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 pins 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.

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PS8459D 03/13/01

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Power Supply Characteristics

PI3C16234

3.3V, High Bandwidth, 16-Bit to 32-Bit Mux/Demux BusSwitch

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I

CC

ID

CC

tnerruCylppuSrewoPtnecseiuQ

)1(

V

CC

V

NI

V

HGIHLTT@tupnIreptnerruCylppuS

CC

V

NI

.xaM=

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CC

.xaM=

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V0.3=

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062058

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Notes:

1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.

2. Typical values are at VCC = 3.3V, +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.

PI3C16234 Switching Characteristics over Operating Range

43261C3IP

moC

sretemaraPnoitpircseDsnoitidnoC

t

HLP

t

LHP

t

HZP

t

LZP

t

ZHP

t

ZLP

AXBot

EB

EB

XB,X

Aot

X

X

Aot

X

X

)3,2(

yaleDnoitagaporP

Aot

X

emiTelbanEsuB

Bro

X

emiTelbasiDsuB

Bro

X

)1(

C

L

R

L

C

L

R

L

Fp05=

005= Ω

Fp05=

005= Ω

005=R Ω

.niM.xaMstinU

05.0

5.15.6

5.15.5

sn

Aµ

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 0.5ns for 25pF 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

PS8459D 03/13/01

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56-Pin TSSOP (A) Package

56

PI3C16234

3.3V, High Bandwidth, 16-Bit to 32-Bit Mux/Demux BusSwitch

.236

6.0

.244

6.2

1

X.XX

DENOTES DIMENSIONS

X.XX

IN MILLIMETERS

Ordering Information

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A43261C3IP)65A(POSST-65lim-042C°58+otC°04

.0197
BSC

0.50

.547
.555

13.9

14.1

.007
.011

0.17

0.27

1.20

.047
Max.

.002
.006

0.05

0.15

SEATING PLANE

.018

0.45
.030

0.75

.319

BSC

8.1

.004
.008

0.09

0.20

Pericom Semiconductor Corporation

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

4

PS8459D 03/13/01