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Features and specifications, Cs di do hi-z hi-z, Ac characteristics – Renesas CPU Board M3A-HS19 User Manual

Page 28: Figure 2.3.7 eeprom-ac timing, Figure 2.3.8 eeprom-read/write timing, Writing enabled data, Output enabled data, 1μsec or more, Within 800 nsec, 0 sec or more

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Features and Specifications

2.3.4 External EEPROM

Rev.1.01 Oct 28, .2008

2-12

REJ10J1351-0101

2

Figure 2.3.7 EEPROM-AC Timing

SK

CS

DI

DO

Hi-Z

READ

Dummy SK

"0"

"1"

"1"

"0"

"1"

1 2

3 4

5 6

7 8

9 10

11 12 13 14

"x"

A

8

A

7

A

6

A

5

A

4

A

3

A

2

A

1

A

0

"x"

"0"

D15 D14 D13

D2

D1

D0 D15 D14 D13

D2

D1

D0 D15 D14 D13

27 28 29 30 31 32

44 45 46 47 48

15 16

43

Hi-Z

SK

CS

DI

DO

Hi-Z

WRITE

"0"

"1"

"0"

"1"

1 2

3 4

5 6

7 8

9 10

11 12 13 14

"x"

A8

A7

A6

A5

A4

A3

A2

A1

A0

27 28 29 30 31 32

15 16

Hi-Z

Setting Address

(Setting Address)Data0

(Setting Address)Data0

(Setting Address+1)Data1 (Setting Address+2)Data2

D15 D14 D13

D2

D1

D0

"0"

"1"

Writing Instruction, Address, Writing Data Input

Verify

Standby

Start writing

End of writing

Dummy SK

Figure 2.3.8 EEPROM-Read/Write Timing

1

μsec

or more

SK

1

μsec or more

400 nsec or more

200 nsec or more

200 nsec or more

Writing
Enabled Data

Within 800 nsec

Within
800 nsec

Within 500 nsec

200 nsec or more

CS

DI

DO

Hi-Z

Hi-Z

Deselect

Output delay time

Output disabled time

Hold

Setup

CS setup

Clock pulse width

Output Enabled Data

AC characteristics

0 sec or more