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Eo5A1Oaa - Epson LQ-2550 Technical Manual

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User manual (281 pages)

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REV.-A

A.1.1.7 EO5A1OAA

The E05A 10AA is a gate array, and includes a memory management unit, reset circuit, and memory -

refresh circuit.

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REF

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PORT I

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P O R T 2

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PORT 1

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Figure A-1 8. E05A1 OAA Pin Diagram

RE F

c

7 - o

1/32

C A R

I

0 1 Sc

M L T

Pu

c

Figure A-1 9, E05A1 OAA Block Diagram

Vcc

63 "

3

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60 ~

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S6 —

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5s —

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A 6

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1306

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084

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LOWER

MAN AGEMENT

E X T E R N A L

MEMORY

MANAGEMENT

I

I

I

I

RESET

A - 1 6

A 8 15-0

c S640

ROUT

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