Zoombak A-GPS Universal Locator Guía de usuario descargar pdf (Pagina 72)

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§ All typical values are at VCC = 5 V, TA = 25C.

¶ Not more than one output should be shorted at a time.

_______ _________ ________

_______ _________ _______

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SDLS029C − DECEMBER 1983 − REVISED JANUARY 2004

6 POST OFFICE BOX 655303 DALLAS, TEXAS 75265

switching characteristics, VCC = 5 V, TA = 25C (see Figure 1)

FROM

SN5404

PARAMETER

SN7404 (INPUT)

(OUTPUT) TEST CONDITIONS

MIN TYP MAX

UNIT

tPLH

A Y RL = 400 , CL = 15 pF

12 22

tPHL

8 15

recommended operating conditions (see Note 3)

SN54LS04 SN74LS04

UNIT

MIN NOM MAX MIN NOM MAX

VCC Supply voltage 4.5 5 5.5 4.75 5 5.25 V

VIH High-level input voltage 2 2 V

VIL Low-level input voltage 0.7 0.8 V

IOH High-level output current −0.4 −0.4 mA

IOL Low-level output current 4 8 mA

TA Operating free-air temperature −55 125 0 70 C

NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application

report,

Implications of Slow or Floating CMOS Inputs, literature number SCBA004.

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER TEST CONDITIONS†

SN54LS04 SN74LS04

UNIT

MIN TYP‡ MAX MIN TYP‡ MAX

VIK VCC = MIN, II = − 18 mA −1.5 −1.5 V

VOH VCC = MIN, VIL = MAX, IOH = −0.4 mA 2.5 3.4 2.7 3.4 V

VOL VCC = MIN, VIH = 2 V

IOL = 4 mA 0.25 0.4 0.4

IOL = 8 mA 0.25 0.5

II VCC = MAX, VI = 7 V 0.1 0.1 mA

IIH VCC = MAX, VI = 2.7 V 20 20 A

IIL VCC = MAX, VI = 0.4 V −0.4 −0.4 mA

IOS§ VCC = MAX −20 −100 −20 −100 mA

ICCH VCC = MAX, VI = 0 V 1.2 2.4 1.2 2.4 mA

ICCL VCC = MAX, VI = 4.5 V 3.6 6.6 3.6 6.6 mA

† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.

‡ All typical values are at VCC = 5 V, TA = 25C.

§ Not more than one output should be shorted at a time, and the duration of the short-circuit should not exceed one second.

switching characteristics, VCC = 5 V, TA = 25C (see Figure 2)

FROM

SN54LS04

PARAMETER

SN74LS04 (INPUT)

(OUTPUT) TEST CONDITIONS

MIN TYP MAX

UNIT

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 85 86

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