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BR9020 View Datasheet(PDF) - ROHM Semiconductor

Part Name
Description
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BR9020 Datasheet PDF : 17 Pages
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Memory ICs
Input / output circuits
(1) Input circuits
RESET int.
CS
CS int.
DI
(2) Output circuits
BR9010 / BR9010F / BR9010FV / BR9020 / BR9020F /
BR9040 / BR9040F
CS int.
SK
WC
OE int.
DO
DO: BR9010 / F / FV
BR9020 / F
OE int.
DO
DO: BR9040 / F
R/B
R / B: BR9020 / F, BR9040 / F
Circuit operation
(1) Command mode
Command
Read
(READ)
Write
(WRITE)
Erase / Write enabled (EWEN)
Erase / Write disable (EWDS)
Either VIH or VIL
With BR9020 / F,
With BR9010 / F / FV,
1 is ‘0’
1 and 2 are ‘0’
Start bit
1010
1010
1010
1010
Operating code
1000
0100
0011
0000
Address
A0 A1 A2 A3 A4 A5 (A6) 2 (A7) 1
A0 A1 A2 A3 A4 A5 (A6) 2 (A7) 1
∗∗∗∗∗∗∗ ∗
∗∗∗∗∗∗∗ ∗
Data
D0 D1—D14 D15
10
 

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