5.9

2

IDT74FCT16601AT/CT/ET, 162601AT/CT/ET

FAST CMOS 18-BIT UNIVERSAL BUS TRANSCEIVERS

COMMERCIAL TEMPERATURE RANGE

PRODUCT

PREVIEW

PIN CONFIGURATIONS

3247 drw 02

ABSOLUTE MAXIMUM RATINGS

(1)

CLKENAB

GND

GND

GND

CLKAB

GND

CLKBA

CLKENBA

OEAB

LEAB

GND

GND

GND

GND

LEBA

OEBA

47

37

38

39

40

41

42

43

44

45

46

33

34

35

36

56

55

49

50

51

52

53

54

48

1

2

3

4

5

6

7

8

9

10

12

13

14

15

16

17

18

19

20

11

21

22

23

24

SSOP/

TSSOP/TVSOP

TOP VIEW

SO56-1

SO56-2

SO56-3

29

30

31

32

25

26

27

28

PIN DESCRIPTION

Pin Names

Description

OEAB

A-to-B Output Enable Input (Active LOW)

OEBA

B-to-A Output Enable Input (Active LOW)

LEAB

A-to-B Latch Enable Input

LEBA

B-to-A Latch Enable Input

CLKAB

A-to-B Clock Input

CLKBA

B-to-A Clock Input

Ax

A-to-B Data Inputs or B-to-A 3-State Outputs

Bx

B-to-A Data Inputs or A-to-B 3-State Outputs

CLKENAB

A to B Clock Enable Input

CLKENBA

B to A Clock Enable Input

3247 tbl 01

FUNCTION TABLE

(1,4)

Inputs

Outputs

CLKENAB

CLKENAB

OEAB

OEAB

LEAB

CLKAB

A

B

XH

X

X

X

Z

XL

H

X

L

L

XL

H

X

H

H

HL

L

X

X

LL

L

↑

LL

LL

L

↑

HH

LL

L

L

X

LL

L

H

X

NOTES:

3247 tbl 02

1. A-to-B data flow is shown. B-to-A data flow is similar but uses

OEBA,

LEBA and CLKBA.

2. Output level before the indicated steady-state input conditions were

established.

3. Output level before the indicated steady-state input conditions were

established, provided that CLKAB was HIGH before LEAB went LOW.

4. H = HIGH Voltage Level

L = LOW Voltage Level

X = Don't Care

Z = High-impedance

↑ = LOW-to-HIGH Transition

Symbol

Description

Max.

Unit

GND

–0.5 to +7.0

V

GND

–0.5 to

V

Storage Temperature

–65 to +150

°C

DC Output Current

–60 to +120

mA

3247 lnk 03

NOTES:

1. Stresses greater than those listed under ABSOLUTE MAXIMUM RAT-

INGS 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.

2. All device terminals except FCT162XXXT Output and I/O terminals.

3. Output and I/O terminals for FCT162XXXT.

NOTE:

1. This parameter is measured at characterization but not tested.

3247 lnk 04

Symbol

Conditions

Typ.

Max.

Unit

Input

Capacitance

3.5

6.0

pF

I/O

Capacitance

3.5

8.0

pF

°C, f = 1.0MHz)