HD74LVCZ245A データシートの表示（PDF） - Hitachi -> Renesas Electronics

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HD74LVCZ245A

Octal Bidirectional Transceivers with 3–state Outputs

Hitachi -> Renesas Electronics 

HD74LVCZ245A

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 1.7

—

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)

7.3 ns A or B B or A

6.3

4.8

9.5 ns OE

A or B

8.5

7.0

8.5 ns OE

A or B

7.5

6.5

—

ns

1.0

1.0

Test Circuit

VCC

VCC

OE

Input

Pulse generator

Zout = 50 Ω

T/R

S1

A0

B0

Output

CL =

50 pF

500 Ω S2

450 Ω

50 Ω Scope

OPEN

*1 See

under table

GND

Note: 1. CL includes probe and jig capacitance.

Symbol

tPLH / t PHL

tZH/ t HZ

tZL / t LZ

S2

Vcc=2.7V,

3.3±0.3V

Vcc=5.0±0.5V

OPEN

OPEN

GND

6V

GND

2×VCC

6

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