HD74BC645 データシートの表示（PDF） - Renesas Electronics

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HD74BC645

Octal Bus Transceivers With 3 State Outputs / SOP-20 pin (JEITA)

Renesas Electronics 

HD74BC645A

Logic Diagram

DiR

G

A1

B1

A2

B2

A3

B3

A4

B4

A5

B5

A6

B6

A7

B7

A8

B8

Electrical Characteristics (Ta = –40 to +85°C)

Item

Input voltage

Output voltage

Input diode voltage

Input current

Output short circuit current*1

Off state output current

Supply current

Symbol

VIH

VIL

VOH

VOL

VIK

II

IOS

IOZH

IOZL

ICCL

VCC (V)

4.5

4.5

4.5

4.5

4.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

Min

2.0

—

2.4

2.0

—

—

—

—

—

—

—

–100

—

—

—

Max

—

0.8

—

—

0.5

0.55

–1.2

–250

100

1.0

100

–225

–100

–250

31.5

Unit

V

V

V

V

V

V

V

µA

µA

µA

µA

mA

µA

µA

mA

Test Conditions

IOH = –3 mA

IOH = –15 mA

IOL = 48 mA

IOL = 64 mA

IIN = –18 mA

VIN = 0 V

An or Bn, VIN = 5.5 V

DiR or G, VIN = 5.5 V

DiR or G, VIN = 7 V

VO = 0 V, VIN = 0 or 5.5 V

VO = 2.7 V

VO = 0.5 V

VIN = 0 or 5.5 V

All outputs is “L”

ICCH

5.5

—

0.5

mA

VIN = 0 or 5.5 V

All outputs is “H”

ICCZ

5.5

—

4.5

mA

VIN = 0 or 5.5 V

All outputs is “Z”

ICCT*2

5.5

—

1.5

mA

VIN = 3.4 or 0.5 V

Notes: 1. Not more than one output should be shorted at a time and duration of the short circuit should not exceed one

second.

2. When input by the TTL level, it shows ICC increase at per one input pin.

Rev.2.00, Jul.16.2004, page 3 of 7

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