Intel mcs-48 manual Waveforms Characteristics, Out O---T

Models: mcs-48

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821618226

WAVEFORMS

A.C. CHARACTERISTICS

 

 

 

Limits

 

 

 

Symbol

Parameter

Min.

Typ.ll)

Max.

U"nit

Conditions

TpOl

Input to Output Delay DO Outputs

 

15

25

ns

CL=30pF,R,=300n

 

 

 

 

 

 

R2=600n

Tp02

Input to Output Delay DB Outputs

 

 

 

 

 

 

8216

 

19

30

ns

" C L=300pF, R 1=90n

 

8226

 

16

25

ns

R2 = 180n

Te

Output Enable Time

 

 

 

 

 

 

8216

 

42

65

ns

(Note 2)

 

8226

 

36

54

ns

(Note 3)

TO

Output Disable Time

 

16

35

ns

(Note 4)

T.st Conditions:

Input pulse amplitude of 2.5V.

Input rise and fall times of 5 ns between 1 and 2 volts. Output loading is 5 mA and 10 pF.

Speed measurements are made at 1.5 volt levels.

Test Load Circuit

",

OUT O---T------

+

",

CAPACITANCEIII

 

 

 

 

Limits

 

 

Symbol

 

Parameter

Min.

Typ.(1)

Max.

Unit

CIN

Input Capacitance

 

4

8

pF

COUT!

Output Capacitance

 

6

10

pF

CoUT2

Output Capacitance

 

13

18

pF

Test Conditions

VBIAS = 2.5V, Vee = 5.0V, TA = 25°C, f = 1 MHz.

 

 

 

 

NOTes:

1. Typical values are for TA • 25°C, VCC = 6.0V.

 

 

 

 

2.00 Outputs. CL· 3OpF, R, ·300110 K.!l, R2· 180/1K.!l; 08 Outputs. CL = 300pF, R, =90110 KO. R2 = 180/1 KO.

3.00 Outputs, CL = 3OpF, R, • 3OO/10K.!l, R2 = 6OOI1K; DB Outputs, CL =300pF, R, =90/l0KO, R2= 180/1 KO.

4.00 Outputs. CL· 6pF, R, = 3OO/10KO, R2· 60011 KO; DB Outputs, CL = 6pF, R, = 90/10 KO, R2 = 180/1 KO.

S. This parameter i. periodically sampled and not 100% tested.

8-40

AFN-«l733A-03

Page 301
Image 301
Intel mcs-48 manual Waveforms Characteristics, Out O---T