BU9832GUL-W ROHM Co. Ltd., BU9832GUL-W Datasheet - Page 10

• Manufacturer Part Number: BU9832GUL-W
• Description: 1,024?8 Bit Electrically Erasable Prom
• Manufacturer: ROHM Co. Ltd.

3.READ
CSB
SCK
SO
SI
The data stored in the memory are clocked out after “Read” instruction is received.
After CS goes low, the address need to be sent following by Op.code of “Read”.
The data at the address specified are clocked out from D7 to D0, which is start at the
falling edge of 23th clock.
This device has the auto-increment feature that provides the whole data of the memory array
with one read command, outputs the next address data following the addressed 8bits of data by
keeping SCK clocking. When the highest address is reached, the address counter rolls over to
the lowest address allowing the continuous read cycle.
Hi-Z
0
0
0
1
0
2
0
3
0
4
0
5
Fig.9 READ CYCLE TIMING
1
6
1
7
*
8
～ ～
～ ～
～ ～
～ ～
～ ～
REV. B
*
A9
14
～ ～
～ ～
～ ～
～ ～
～ ～
A1
A0
23
D7
24
D6
～ ～
～ ～
～ ～
～ ～
～ ～
D2
*=Don't care
D1
30
D0
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