DM74LS299 데이터 시트보기 (PDF) - Fairchild Semiconductor

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DM74LS299

8-Input Universal Shift/Storage Register with Common Parallel I/O Pins

Fairchild Semiconductor 

Electrical Characteristics

Over recommended operating free air temperature range (unless otherwise noted)

Symbol

Parameter

Conditions

Min

VI

Input Clamp Voltage

VOH

HIGH Level

Output Voltage

VOL

LOW Level

Output Voltage

II

Input Current @ Max

Input Voltage

IIH

HIGH Level

Input Current

VCC = Min, II = −18 mA

VCC = Min, IOH = Max

Q0, Q7

2.7

VIL = Max

I/O0–I/O7

2.4

VCC = Min, IOL = Max

VIH = Min

IOL = 4 mA, VCC = Min

VCC = Max

Inputs

VI = 7V

Sn

VCC = Max, VI = 2.7V

Sn

Inputs

IIL

LOW Level

Input Current

VCC = Max, VI = 0.4V

Sn

Inputs

IOS

Short Circuit

Output Current

VCC = Max

(Note 3)

Q0, Q7

−20

I/O0–I/O7 −30

ICC

Supply Current

VCC = Max, OE = 4.5V

IOZH

3-STATE Output Off

VCC = Max

Current HIGH

VO = 2.7V

IOZL

3-STATE Output Off

VCC = Max

Current Low

VO = 0.4V

Note 2: All typicals are at VCC = 5V, TA = 25°C.

Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second.

Typ

(Note 2)

3.4

0.35

0.25

Switching Characteristics

VCC = +5.0V, TA = +25°C

Symbol

Parameter

fMAX

tPLH

tPHL

tPLH

tPHL

tPHL

tPHL

tPZH

tPZL

tPHZ

tPLZ

Maximum Input Frequency

Propagation Delay

CP to Q0 or Q7

Propagation Delay

CP to I/On

Propagation Delay

MR to Q0 or Q7

Propagation Delay

MR to I/On

Output Enable Time

Output Disable Time

RL = 2 kΩ

CL = 15 pF

Min

Max

35

26

28

25

35

28

35

18

25

15

20

Max

Units

−1.5

V

V

0.5

V

0.4

0.1

mA

0.2

mA

40

µA

20

µA

−0.8

mA

−0.4

mA

−100

mA

−130

60

mA

40

µA

−400

µA

Units

MHz

ns

ns

ns

ns

ns

ns

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