MC14541BDR2G datasheet(4/9 Pages) ONSEMI

Nome de Peças	MC14541BDR2G

Descrição Electrónicos	Programmable Timer

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Fabricante Electrônico	ONSEMI [ON Semiconductor]

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MC14541B

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4

SWITCHING CHARACTERISTICS (Note 5) (CL = 50 pF, TA = 25_C)

Characteristic

Symbol

VDD

Min

Typ

(Note 6)

Max

Unit

Output Rise and Fall Time

tTLH, tTHL = (1.5 ns/pF) CL + 25 ns

tTLH, tTHL = (0.75 ns/pF) CL + 12.5 ns

tTLH, tTHL = (0.55 ns/pF) CL + 9.5 ns

tTLH,

tTHL

5.0

10

15

−

100

50

40

200

100

80

ns

Propagation Delay, Clock to Q (28 Output)

tPLH, tPHL = (1.7 ns/pF) CL + 3415 ns

tPLH, tPHL = (0.66 ns/pF) CL + 1217 ns

tPLH, tPHL = (0.5 ns/pF) CL + 875 ns

tPLH

tPHL

5.0

10

15

−

3.5

1.25

0.9

10.5

3.8

2.9

ms

Propagation Delay, Clock to Q (216 Output)

tPHL, tPLH = (1.7 ns/pF) CL + 5915 ns

tPHL, tPLH = (0.66 ns/pF) CL + 3467 ns

tPHL, tPLH = (0.5 ns/pF) CL + 2475 ns

tPHL

tPLH

5.0

10

15

−

6.0

3.5

2.5

18

10

7.5

ms

Clock Pulse Width

tWH(cl)

5.0

10

15

900

300

225

300

100

85

−

ns

Clock Pulse Frequency (50% Duty Cycle)

fcl

5.0

10

15

−

1.5

4.0

6.0

0.75

2.0

3.0

MHz

MR Pulse Width

tWH(R)

5.0

10

15

900

300

225

300

100

85

−

ns

Master Reset Removal Time

trem

5.0

10

15

420

200

210

100

−

ns

5. The formulas given are for the typical characteristics only at 25

_C.

6. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.

Figure 1. Power Dissipation Test Circuit

and Waveform

Figure 2. Switching Time Test Circuit

and Waveforms

PULSE

GENERATOR

VDD

CL

Q

RS

AR

Q/Q SELECT

MODE

A

B

MR

VSS

20 ns

90%

50%

10%

50%

DUTY CYCLE

(Rtc AND Ctc OUTPUTS ARE LEFT OPEN)

PULSE

GENERATOR

VDD

RS

AR

Q/Q SELECT

MODE

A

B

MR

VSS

CL

Q

20 ns

90%

50%

20 ns

10%

RS

Q

tPLH

50%

90%

50%

10%

50%

tTLH

tTHL

tPHL

Nº de peça semelhante - MC14541BDR2G

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
ON Semiconductor	MC14541BDR2G	163Kb / 10P	Programmable Timer October, 2006 ??Rev. 10

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