CD74ACT297

DIGITAL PHASE-LOCKED LOOP

SCHS297A – AUGUST 1998 – REVISED SEPTEMBER 1999

7

POST OFFICE BOX 655303

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

otherwise noted)

PARAMETER

TEST CONDITIONS

VCC

TA = 25°C

MIN

MAX

UNIT

PARAMETER

TEST CONDITIONS

VCC

MIN

MAX

MIN

MAX

UNIT

IO = –50 µA

4.5 V

4.4

4.4

VOH

VI = VIH or VIL

IO = –24 mA

4.5 V

3.94

3.8

V

IO = –75 mA

5.5 V

3.85

IO = 50 µA

4.5 V

0.1

0.1

VOL

VI =VIH or VIL

IO = 24 mA

4.5 V

0.36

0.44

V

IO = 75 mA†

5.5 V

1.65

II

VI = VCC or GND

5.5 V

±0.1

±1

mA

ICC (MSI)

VI = VCC or GND

5.5 V

8

80

mA

ICC (SSI/FF)

VI = VCC or GND

5.5 V

4

40

mA

DICC

VI = VCC –2.1 V

4.5 V to 5.5 V

2.4

2.8

mA

† Test one output at a time for a 1-second maximum duration. Measurement is made by forcing current and measuring voltage to minimize power

dissipation. Test verifies a minimum 50-

Ω transmission-line drive capability at 85°C.

ACT Input Load Table

INPUT

UNIT LOAD

ENCTR, D/U

0.1

A, B, C, D, K CLK,

φA2

0.2

I/O CLK,

φA1, φB

0.5

NOTE: Unit Load is

∆ICC limit specified in

electrical characteristics table (e.g.,

2.4 mA at 25

°C).