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" D15D14 D13 D2 D1 D0 D15D14 D13 D2 D1 D0 D15 D14 D13
27 28 29 30 31 32 44 45 46 47 4815 16 43
Hi-Z
SK
CS
DI
DO Hi-Z
W
RITE
"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 3215 16
Hi-Z
Setting Address
(Setting Address)Data0
(Setting Address)Data0
(Setting Address+1)Data1 (Setting Address+2)Data
2
D15D14 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
1μsec or more
400 nsecor 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
CSDIDO Hi-Z Hi-Z
Deselect
Output delay time
Output disabled time
HoldSetup
CS setup
Clock pulse width

Output Enabled Data

A
C characteristics
0 sec or more