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參數(shù)資料
| 型號： | BR9080F |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | 8k, 16k bit EEPROMs for direct connection to serial ports |
| 中文描述： | 分為8K，16K，可直接連接到串行端口位的EEPROM |
| 文件頁數(shù)： | 5/11頁 |
| 文件大?。?/td> | 121K |
| 代理商： | BR9080F |
BR9080 / BR9080F / BR9080RFV /
Memory ICs
BR9016 / BR9016F / BR9016RFV
z
Circuit operation
(1) Command mode
BR9080
1010
100 A0
A1 A2 A3 A4 A5 A6 A7 A8
A1 A2 A3 A4 A5 A6 A7 A8
1010
010 A0
1010
0011
D0 D1
D14 D15
1010
0000
Read (READ)
Write (WRITE)
Erase / Write enable (EWEN)
Erase / Write disable
(EWDS)
: Means either V
IH
or V
IL
Address and data are transferred from LSB.
Instruction
Start Bit
Op Code
Address
Data
BR9016
1010
10 A0 A1
A2 A3 A4 A5 A6 A7 A8 A9
A2 A3 A4 A5 A6 A7 A8 A9
1010
01 A0 A1
1010
0011
D0 D1
D14 D15
1010
0000
Read (READ)
Write (WRITE)
Erase / Write enable (EWEN)
Erase / Write disable
(EWDS)
: Means either V
IH
or V
IL
Address and data are transferred from LSB.
Instruction
Start Bit
Op Code
Address
Data
(2) Writing enabled / disabled
High or LOW
Fig.3
1
1
HIGH-Z
H
SK
CS
DI
DO
R / B
WC
L
H
L
H
L
H
0
1
0
0
0
4
8
ENABLE
=
11
DISABLE
=
00
12
16
1) When CS is “HIGH” during power up, BR9080 / F / RFV, BR9016 / F / RFV comes up in the erase / write disabled
(EWDS) state. In order to be programmable, it must receive an enable (EWEN) instruction.
The device remains programmable until a disable (EWDS) instruction is entered, or until it is powered down.
2) It is unnecessary to add the clock after 16th clock.
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相關代理商/技術參數(shù) |
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