CD54HCT373, CD74HCT373

OCTAL TRANSPARENT D-TYPE LATCHES

WITH 3-STATE OUTPUTS

SCLS453B – FEBRUARY 2001 – REVISED MAY 2003

3

POST OFFICE BOX 655303

recommended operating conditions (see Note 3)

TA = 25°C

TA = –55°C

TO 125

°C

TA = –40°C

TO 85

°C

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

VCC

Supply voltage

4.5

5.5

4.5

5.5

4.5

5.5

V

VIH

High-level input voltage

2

2

2

V

VIL

Low-level input voltage

0.8

0.8

0.8

V

VI

Input voltage

VCC

VCC

VCC

V

VO

Output voltage

VCC

VCC

VCC

V

∆t/∆v Input transition rise or fall rate

500

500

500

ns

NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. 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

VCC

TA = 25°C

TA = –55°C

TO 125

°C

TA = –40°C

TO 85

°C

UNIT

CC

MIN

MAX

MIN

MAX

MIN

MAX

VOH

VI =VIH or VIL

IOH = –20 µA

45 V

4.4

4.4

4.4

V

VOH

VI = VIH or VIL

IOH = –6 mA

4.5 V

3.98

3.7

3.84

V

VOL

VI =VIH or VIL

IOL = 20 µA

45 V

0.1

0.1

0.1

V

VOL

VI = VIH or VIL

IOL = 6 mA

4.5 V

0.26

0.4

0.33

V

II

VI = VCC or 0

5.5 V

±0.1

±1

±1

µA

IOZ

VO = VCC or 0

5.5 V

±0.5

±10

±5

µA

ICC

VI = VCC or 0,

IO = 0

5.5 V

8

160

80

µA

∆ICC‡

One input at VCC – 2.1 V, Other inputs at 0 or VCC

4.5 V to

5.5 V

360

490

450

µA

Ci

10

10

10

pF

Co

10

10

10

pF

‡ Additional quiescent supply current per input pin, TTL inputs high, 1 unit load. For dual-supply systems, theoretical worst-case

(VI = 2.4 V, VCC = 5.5 V) specification is 1.8 mA.

HCT INPUT LOADING TABLE

INPUT

UNIT LOAD

OE

1.5

Any D

0.4

LE

1

Unit load is

∆ICC limit

specified

in

electrical

characteristics table (e.g.,

360

µA max at 25°C).