SN74ALVCH162721

3.3-V 20-BIT FLIP-FLOP

WITH 3-STATE OUTPUTS

SCES055E – DECEMBER 1995 – REVISED JUNE 1999

4

POST OFFICE BOX 655303

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP†

MAX

UNIT

IOH = –100 µA

1.65 V to 3.6 V

VCC–0.2

IOH = –2 mA

1.65 V

1.2

IOH = –4 mA

2.3 V

1.9

VOH

IOH =6 mA

2.3 V

1.7

V

IOH = –6 mA

3 V

2.4

IOH = –8 mA

2.7 V

2

IOH = –12 mA

3 V

2

IOL = 100 µA

1.65 V to 3.6 V

0.2

IOL = 2 mA

1.65 V

0.45

IOL = 4 mA

2.3 V

0.4

VOL

IOL =6mA

2.3 V

0.55

V

IOL = 6 mA

3 V

0.55

IOL = 8 mA

2.7 V

0.6

IOL = 12 mA

3 V

0.8

II

VI = VCC or GND

3.6 V

±5

µA

VI = 0.58 V

1.65 V

25

VI = 1.07 V

1.65 V

–25

VI = 0.7 V

2.3 V

45

II(hold)

VI = 1.7 V

2.3 V

–45

µA

()

VI = 0.8 V

3 V

75

VI = 2 V

3 V

–75

VI = 0 to 3.6 V‡

3.6 V

±500

IOZ

VO = VCC or GND

3.6 V

±10

µA

ICC

VI = VCC or GND,

IO = 0

3.6 V

40

µA

∆ICC

One input at VCC – 0.6 V,

Other inputs at VCC or GND

3 V to 3.6 V

750

µA

Ci

VI = VCC or GND

3.3 V

3.5

pF

Co

VO = VCC or GND

3.3 V

7

pF

† All typical values are at VCC = 3.3 V, TA = 25°C.

‡ This is the bus-hold maximum dynamic current. It is the minimum overdrive current required to switch the input from one state to another.

timing requirements over recommended operating free-air temperature range (unless otherwise

noted) (see Figures 1 through 3)

VCC = 1.8 V

VCC = 2.5 V

± 0.2 V

VCC = 2.7 V

VCC = 3.3 V

± 0.3 V

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

fclock

Clock frequency

§

150

150

150

MHz

tw

Pulse duration, CLK high or low

§

3.3

3.3

3.3

ns

t

Set p time

Data before CLK

↑

§

4

3.6

3.1

ns

tsu

Setup time

CLKEN before CLK

↑

§

3.4

3.1

2.7

ns

th

Hold time

Data after CLK

↑

§

0

0

0

ns

th

Hold time

CLKEN after CLK

↑

§

0

0

0

ns

§ This information was not available at the time of publication.