br9016 ROHM Co. Ltd., br9016 Datasheet - Page 7

• Manufacturer Part Number: br9016
• Description: 8k, 16k Bit Eeproms For Direct Connection To Serial Ports
• Manufacturer: ROHM Co. Ltd.

Memory ICs
(4) Write cycle
BR9080 / F / RFV
BR9016 / F / RFV
1) At the rising edge of 32nd clock, R / B pin will be come out “LOW” after the specified time delay (t
2) From above edge R / B will indicate the ready / busy status of the chip: “LOW” indicated programming is all in
3) During the input of Write command, CS must be “LOW”. However, once the write operation started, CS could be either
4) If WC becomes “HIGH” during Write Cycle, the write operation is halted. In this case, the address data in writing is no
progress: “HIGH” indicates the write cycle is complete and this part is ready for another instruction.
“HIGH” or “LOW”.
guaranteed. It is necessary to rewrite it.
SK
DI
DO
R / B
WC
SK
DI
DO
R / B
WC
CS
CS
H
L
H
L
H
H
L
H
L
H
H
L
H
L
t
t
HIGH-Z
WCS
HIGH-Z
WCS
1
1
1
1
0
0
1
1
0
0
4
4
0
0
1
1
A0
0
A0
A1
8
Fig.6 BR9080 / F / RFV
8
Fig.7 BR9016 / F / RFV
BR9080 / BR9080F / BR9080RFV /
A1
A2
BR9016 / BR9016F / BR9016RFV
A7
A8
16
A8
16
A9
D0
D0
t
t
SV
SV
32
D15
32
D15
t
t
WCH
WCH
t
t
E-W
E-W
SV
t
t
).
CS
CS
HIGH-Z
HIGH-Z