HD74AC 查看數據表（PDF） - Hitachi -> Renesas Electronics

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HD74AC

HD74AC Series Common Information

Hitachi -> Renesas Electronics 

Definition of Specifications

2. Ratings and Specifications

Table 1 Absolute Maximum Ratings*1

Parameter

Symbol

Limit

Unit

Condition

Supply voltage

VCC

DC input Diode current IIK

or DC input voltage

–0.5 to 7.0

V

–20

mA

VI = –0.5

VI

DC output Diode

I OK

current or DC output

voltage

20

mA

–0.5 to VCC +0.5 V

–50

mA

VI = VCC +0.5

VO = –0.5

VO

DC output source or IO

sink current

50

mA

–0.5 to VCC +0.5 V

±50

mA

VO = VCC +0.5

DC VCC or ground

ICC or IGND

±50

mA

current per output pin

Storage temperature TSTG

–65 to 150

°C

Note: 1. Absolute maximum ratings are those values beyond which damage to the device may occur.

Obviously the databook specifications should be met, without exception to ensure that the

system design is reliable over its power supply, temperature, output/input loading variables.

Hitachi does not recommend operation of FACT circuits outside databook specifications.

Table 2 Recommended Operating Conditions

Parameter

Symbol

Limit

Unit

Condition

Supply Voltage (unless

otherwise specified)

AC devices VCC

2.0 to 6.0 V

ACT devices

4.5 to 5.5

Input voltage

VI

0 to VCC

V

Output voltage

VO

0 to VCC

V

Operating temperature

TA

–40 to +85 °C

Input rise and Fall time*1 (typical)

tr, tf

150

ns/V

VCC @ 3.0V

(except Schmitt inputs) ’AC devices VIN from

40

ns/V

VCC @ 4.5V

30% to 70% of VCC

25

ns/V

VCC @ 5.5V

Input rise and Fall time*1 (typical)

tr, tf

10

ns/V

VCC @ 4.5V

(except schmitt inputs) ’ACT devices VIN from

8

ns/V

VCC @ 5.5V

0.8 to 2.0 V, Vmeas from 0.8 to 2.0V

Note: 1. See individual data sheets for those devices which differ from the typical input rise and fall times

noted here.

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