SN74FB2031

9-BIT TTL/BTL ADDRESS/DATA TRANSCEIVER

SCBS176N – NOVEMBER 1991 – REVISED JUNE 2001

4

POST OFFICE BOX 655303

recommended operating conditions (see Note 2)

MIN

NOM

MAX

UNIT

VCC,

BIAS VCC,

BG VCC

Supply voltage

4.5

5

5.5

V

VIH

High level input voltage

B port

1.62

2.3

V

VIH

High-level input voltage

Except B port

2

V

VIL

Low level input voltage

B port

0.75

1.47

V

VIL

Low-level input voltage

Except B port

0.8

V

IOH

High-level output current

A port

–3

mA

IOL

Low level output current

A port

24

mA

IOL

Low-level output current

B port

100

mA

TA

Operating free-air temperature

0

70

°C

NOTE 2: To ensure proper device operation, all unused inputs must be terminated as follows: A and control inputs to VCC(5 V) or GND, and

B inputs to GND only. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004.

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

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VIK

B port

VCC = 4.5 V,

II = –18 mA

–1.2

V

VIK

Except B port

VCC = 4.5 V,

II = –40 mA

–0.5

V

VOH

A port

VCC = 4.5 V,

IOH = –3 mA

2.5

3.3

V

A port

VCC = 4.5 V,

IOL = 24 mA

0.35

0.5

VOL

B

t

VCC =4 5V

IOL = 80 mA

0.75

1.1

V

B port

VCC = 4.5 V

IOL = 100 mA

1.15

II

Except B port

VCC = 5.5 V,

VI = 5.5 V

50

µA

IIH‡

Except B port

VCC = 5.5 V,

VI = 2.7 V

50

µA

I ‡

Except B port

VCC = 5.5 V,

VI = 0.5 V

–50

µA

IIL‡

B port

VCC = 5.5 V,

VI = 0.75 V

–100

µA

IOZH

A port

VCC = 2.1 V to 5.5 V,

VO = 2.7 V

50

µA

IOZL

A port

VCC = 2.1 V to 5.5 V,

VO = 0.5 V

–50

µA

IOZPU

A port

VCC = 0 to 2.1 V,

VO = 0.5 V to 2.7 V

50

µA

IOZPD

A port

VCC = 2.1 V to 0,

VO = 0.5 V to 2.7 V

–50

µA

IOH

B port

VCC = 0 to 5.5 V,

VO = 2.1 V

100

µA

IOS§

A port

VCC = 5.5 V,

VO = 0

–30

–150

mA

ICC

A port to B port

VCC =5 5V

IO =0

78

mA

ICC

B port to A port

VCC = 5.5 V,

IO = 0

78

mA

Ci

VI = 0.5 V or 2.5 V

4.5

pF

A port

VO = 0.5 V or 2.5 V

8.5

Cio

B port per

IEEE Std 1194.1-1991

VCC = 0 to 5.5 V

6

pF

† All typical values are at VCC = 5 V, TA = 25°C.

‡ For I/O ports, the parameters IIH and IIL include the off-state output current.

§ Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second.