SN74ALB16244

16-BIT BUFFER/DRIVER

WITH 3-STATE OUTPUTS

SCBS647D – AUGUST 1995 – REVISED JANUARY 2001

4

POST OFFICE BOX 655303

recommended operating conditions

MIN

MAX

UNIT

VCC

Supply voltage

3

3.6

V

IOH†

High-level output current

–25

mA

IOL†

Low-level output current

25

mA

∆t/∆v

Input transition rise or fall rate

Outputs enabled

5

ns/V

TA

Operating free-air temperature

–40

85

°C

† See Figures 1 and 2 for typical I/O ranges.

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

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP‡

MAX

UNIT

VIK

Data inputs

VCC =3V

II = 18 mA

3.6

VCC–1.2

V

VIK

Data inputs

VCC = 3 V

II = –18 mA

–0.9

–1.2

V

Control inputs

VCC = 3.6 V,

VI = VCC or GND

±10

µA

VI =VCC

OE low

0.4

0.6

mA

II

Data inputs

VCC =3 6V

VI = VCC

OE high

25

µA

Data inputs

VCC = 3.6 V

VI =0

OE low

–0.8

–1

mA

VI = 0

OE high

–60

µA

IOZH

VCC = 3.6 V,

VO = 3 V

0.6

20

µA

IOZL

VCC = 3.6 V,

VO = 0.5 V

–0.1

–50

µA

ICC/buffer

VCC = 3.6 V,

IO = 0,

VI = VCC or GND

3.7

5.6

mA

ICCZ

VCC = 3.6 V,

Control inputs = VCC or GND

0.8

mA

∆ICC§

VCC = 3 V to 3.6 V, One input at VCC – 0.6 V, Other inputs at VCC or GND

600

µA

Ci

VI = 3 V or 0

4.5

pF

Co

VO = 3 V or 0

5.5

pF

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

§ This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.

(unless otherwise noted) (see Figure 3)

PARAMETER

FROM

TO

VCC = 3.3 V ± 0.3 V

UNIT

PARAMETER

(INPUT)

(OUTPUT)

MIN

TYP‡

MAX

UNIT

tpd

A

Y

0.6

1.3

2

ns

ten

OE

Y

1.3

2.5

4.7

ns

tdis

OE

Y

1.8

2.8

4.2

ns

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