Integrated Device Technology Inc IDT74FST16163232PF, IDT74FST16163232PA Datasheet

Integrated Device Technology, Inc.

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

FEATURES:

• Bus switches provide zero delay paths

• Extended commercial range of –40°C to +85°C

• Low switch on-resistance:
FST163xxx – 4Ω

• TTL-compatible input and output levels

• ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)

• Available in SSOP, TSSOP and TVSOP

IDT74FST163232

ADVANCE INFORMATION

16-BIT SYNCHRONOUS
2:1 MUX/DEMUX SWITCH

driver. These devices connect input and output ports through
an n-channel FET. When the gate-to-source junction of this
FET is adequately forward-biased the device conducts and
the resistance between input and output ports is small. With­out adequate bias on the gate-to-source junction of the FET,
the FET is turned off, therefore with no VCC applied, the device
has hot insertion capability.

The low on-resistance and simplicity of the connection
between input and output ports reduces the delay in this path
to close to zero.

The FST163232 provides three 16-bit TTL- compatible
ports that support 2:1 multiplexing. The S0,1 pins control mux
select and switch enable/disable. The S0,1 inputs are syn­chronous and clocked on the rising edge of CLK when

CLKEN

is low.

Port A can be connected to port B1 or port B2 or both ports
B1 and B2.

PIN DESCRIPTION

FUNCTIONAL BLOCK DIAGRAM

CLKEN

CLK

S0

S1

D
CE

CLK

D
CE

CLK

1A

1B1

1

B

2

1 of 16 Channels

Pin Names I/O Description

A I/O Bus A

B1, B2 I/O Buses B1, B2

S0,1 I Control Pins

CLK I Clock Input. Clocks S0,1 on

Rising Edge

CLKEN

I Clock Enable Input

3511 drw 01

3511 tbl 01

COMMERCIAL TEMPERATURE RANGE FEBRUARY 1997

1997 Integrated Device Technology, Inc. DSC-3511/2

1

DESCRIPTION:

The FST163232 belong to IDT's family of Bus switches.
Bus switch devices perform the function of connecting or
isolating two ports without providing any inherent current sink
or source capability. Thus they generate little or no noise of
their own while providing a low resistance path for an external

2

IDT74FST163232
16-BIT SYNCHRONOUS 2:1 MUX/DEMUX SWITCH COMMERCIAL TEMPERATURE RANGE

ABSOLUTE MAXIMUM RATINGS

(1)

PIN CONFIGURATION

CAPACITANCE

(1)

FUNCTION TABLE

S1 S0 CLK

CLKEN

CLKEN

Description

XXXHLast state
LL↑L Disconnect
LH↑L A to B1 and A to B2
HL↑L A to B1 or B1 to A
HH↑L A to B2 or B2 to A

5

6
7
8
9
10

1
2

3
4

54

53
52

51
50
49

48
47

46
45

8B1

2

B

1

2

B

2

3A

1A

4B1

4

B

2

5A

6B1

6

B

2

2A

3B1

3

B

2

4A

5B1

5

B

2

6A

7B1

1

B

1

1

B

2

11
12

55

56

7B2

8A

17

18
19
20
21

22

13
14

15
16

42

41
40

39
38
37

36
35

34
33

14B1

9A

10B1

10

B

2

11A

12B1

12

B

2

13A

9B1

9

B

2

10A
11B

1

11B

2

12A

13B1

13

B

2

GND
V

CC

SO56-1
SO56-2
SO56-3

14B2

23
24

43

44

15A

14A

15B1

8

B

2

GND

Vcc

7A

25
26

32
31

30
29

16B2

16

B

115

B

2

16A

CLK

27
28

CLKEN

S

0

S

1

SSOP/

TSSOP/TVSOP

TOP VIEW

3511 drw 02

3511 tbl 04

Symbol Description Max. Unit

VTERM

(2)

Terminal Voltage with Respect
to GND

–0.5 to +7.0 V

TSTG Storage Temperature –65 to +150 °C
IOUT Maximum Continuous Channel

Current

128 mA

NOTES:

1. Stresses greater than those listed under ABSOLUTE 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 condiitions for extended
periods may affect reliability.

2. VCC, Control and Switch terminals.

3511 tbl 02

Symbol Parameter Conditions

(2)

Typ. Unit

CIN Control Input Capacitance 4 pF
CI/O

Switch Input/Output
Capacitance

Switch Off

pF

3511 tbl 03

NOTES:

1. Capacitance is characterized but not tested

2. TA = 25°C, f = 1MHz, VIN = 0V, VOUT = 0V