參數(shù)資料
型號: BR9016F
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): 6/13頁
文件大小: 178K
代理商: BR9016F
BR9080AF-W / BR9080ARFV-W / BR9080ARFVM-W /
Memory ICs
BR9016AF-W / BR9016ARFV-W / BR9016ARFVM-W
!
Circuit operation
(1) Command mode
BR9080A
6/12
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)
Write enable (WEN)
Write disable
(WDS)
: Means either V
IH
or V
IL
Address and data are transferred from LSB.
Instruction
Start Bit
Op Code
Address
Data
BR9016A
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)
Write enable (WEN)
Write disable
(WDS)
: 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, BR9080AF-W / ARFV-W / ARFVM-W, BR9016AF-W / ARFV-W / ARFVM-W
comes up in the write disabled (WDS) state. In order to be programmable, it must receive a write enable (WEN)
instruction.
The device remains programmable until a disable (WDS) instruction is entered, or until it is powered down.
2) It is unnecessary to add the clock after 16th clock.
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