MDT75C277

OTP Encoder

2 of 2

2006/10/11 Ver. 1.5

This specification is subject to be changed without notice. Please visit our web site for the most updated

5.Output Data Reporting

Output data frame

Preamble

C0 ~ C19 ( 1048576 address codes )

D0

D1

D2

D3

Preamble :

4 Ick

124 Ick for 75C277

Data High :

12 Ick

4 Ick

Data Low :

4 Ick

12 Ick

Note : 1 Ick = 8 OSC clocks

6. Key 0 ~ 3 combination table

K3

K2

K1

K0

D3

D2

D1

D0

0

0

0

1

0

0

0

1

0

0

1

0

0

0

1

0

0

0

1

1

0

0

1

1

0

1

0

0

0

1

0

0

0

1

0

1

0

1

0

1

0

1

1

0

0

1

1

0

0

1

1

1

0

1

1

1

1

0

0

0

1

0

0

0

1

0

0

1

1

0

0

1

1

0

1

0

1

0

1

0

1

0

1

1

1

0

1

1

1

1

0

0

1

1

0

0

1

1

0

1

1

1

0

1

1

1

1

0

1

1

1

0

1

1

1

1

1

1

1

1

information.

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