SN54ABT162500, SN74ABT162500

18-BIT UNIVERSAL BUS TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCBS242E – JUNE 1992 – REVISED FEBRUARY 1999

6

POST OFFICE BOX 655303

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

otherwise noted)

PARAMETER

TEST CONDITIONS

TA = 25°C

SN54ABT162500

SN74ABT162500

UNIT

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

MIN

MAX

MIN

MAX

UNIT

VIK

VCC = 4.5 V,

II = –18 mA

–1.2

–1.2

–1.2

V

VCC = 4.5 V,

IOH = –3 mA

2.5

2.5

2.5

A port

VCC = 5 V,

IOH = –3 mA

3

3

3

A port

VCC =4 5V

IOH = –24 mA

2

2

VOH

VCC = 4.5 V

IOH = –32 mA

2*

2

V

VOH

VCC = 4.5 V,

IOH = –1 mA

3.35

3.3

3.35

V

B port

VCC = 5 V,

IOH = –1 mA

3.85

3.8

3.85

B port

VCC =4 5V

IOH = –3 mA

3.1

3

3.1

VCC = 4.5 V

IOH = –12 mA

2.6

2.6

A port

VCC =4 5V

IOL = 48 mA

0.55

0.55

VOL

A port

VCC = 4.5 V

IOL = 64 mA

0.55*

0.55

V

B port

VCC = 4.5 V,

IOL = 12 mA

0.8

0.8

0.8

Vhys

100

mV

Control inputs

VCC = 0 to 5.5 V, VI = VCC or GND

±1

±1

±1

II

A or B ports

VCC = 2.1 V to 5.5 V,

VI = VCC or GND

±20

±20

±20

µA

IOZPU

VCC = 0 to 2.1 V,

VO = 0.5 V to 2.7 V, OE or OE = X§

±50

±50

±50

µA

IOZPD

VCC = 2.1 V to 0,

VO = 0.5 V to 2.7 V, OE or OE = X§

±50

±50

±50

µA

IOZH‡

VCC = 2.1 V to 5.5 V,

VO = 2.7 V, OE ≥ 2 V or OE ≤ 0.8 V

10

10

10

µA

IOZL‡

VCC = 2.1 V to 5.5 V,

VO = 0.5 V, OE ≥ 2 V or OE ≤ 0.8 V

–10

–10

–10

µA

Ioff

VCC = 0,

VI or VO ≤ 4.5 V

±100

±100

µA

ICEX

VCC = 5.5 V,

VO = 5.5 V

Outputs high

50

50

50

µA

I ¶

A port

VCC =5 5V

VO =2 5V

–50

–110

–180

–50

–180

–50

–180

mA

IO¶

B port

VCC = 5.5 V,

VO = 2.5 V

–25

–55

–90

–25

–90

–25

–90

mA

VCC = 5.5 V,

Outputs high

3

3

3

ICC

A or B ports

VCC = 5.5 V,

IO = 0,

Outputs low

36

36

36

mA

VI = VCC or GND Outputs disabled

3

3

3

∆ICC#

VCC = 5.5 V, One input at 3.4 V,

Other inputs at VCC or GND

50

50

50

µA

Ci

Control inputs

VI = 2.5 V or 0.5 V

3

pF

Cio

A or B ports

VO = 2.5 V or 0.5 V

9

pF

* On products compliant to MIL-PRF-38535, this parameter does not apply.

† All typical values are at VCC = 5 V.

‡ The parameters IOZH and IOZL include the input leakage current.

§ For VCC between 2.1 V and 4 V, OE should be less than or equal to 0.5 V to ensure a low state.

¶ Not more than one output should be tested at a time, and the duration of the test should not exceed one second.

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

PRODUCT PREVIEW information concerns products in the formative or

design phase of development. Characteristic data and other

specifications are design goals. Texas Instruments reserves the right to

change or discontinue these products without notice.