HD74LVCZ244A Ver la hoja de datos (PDF) - Hitachi -> Renesas Electronics

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HD74LVCZ244A

Octal Buffers / Line Drivers with 3–state Outputs

Hitachi -> Renesas Electronics 

HD74LVCZ244A

Switching Characteristics (Ta = –40 to 85°C)

Item

Symbol VCC (V) Min

Typ

Propagation delay time

t PLH

2.7

—

—

t PHL

3.3±0.3 1.5

—

5.0±0.5 —

—

Output enable time

t ZH

2.7

—

—

t ZL

3.3±0.3 1.5

—

5.0±0.5 —

—

Output disable time

t HZ

2.7

—

—

t LZ

3.3±0.3 1.5

—

5.0±0.5 —

—

Between output pin skew *1 tOSLH

2.7

—

—

t OSHL

3.3±0.3 —

—

5.0±0.5 —

—

Note : 1. This parameter is characterized but not tested.

tOSLH = |tPLHm–tPLHn|, tOSHL = |tPHLm–tPHLn|

Max Unit FROM TO

(Input) (Output)

6.9 ns A

Y

5.9

4.5

8.6 ns G

Y

7.6

6.1

6.8 ns G

Y

6.5

5.5

—

ns

1.0

1.0

Test Circuit

VCC

Input

Pulse generator

Zout = 50 Ω

VCC

1G, 2G

Output

1Y1 to 2Y4

1A1 to 2A4

C L=

50 pF

500 Ω S1

450 Ω

50 Ω Scope

OPEN

*1 See

under table

GND

Symbol

tPLH / t PHL

tZH/ t HZ

tZL / t LZ

S1

Vcc=2.7V,

3.3±0.3V

Vcc=5.0±0.5V

OPEN

OPEN

GND

6V

GND

2×VCC

Note: 1. CL includes probe and jig capacitance.

6

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