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BU21024FV-ME2 データシート(PDF) 5 Page - Rohm

部品番号 BU21024FV-ME2
部品情報  Resistive Type Touch Screen Controller ICs
Download  18 Pages
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メーカー  ROHM [Rohm]
ホームページ  http://www.rohm.com
Logo ROHM - Rohm

BU21024FV-ME2 データシート(HTML) 5 Page - Rohm

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Technical Note
5/17
www.rohm.com
2011.08 - Rev.A
© 2011 ROHM Co., Ltd. All rights reserved.
BU21023GUL,BU21023MUV,BU21024FV-M
EEPROM I/F
BU21023/BU21024 controllers include an EEPROM interface for firmware download.
Device address of EEPROM is set via register 0x51(EEPROM_ADDR).
Timing chart
Parameter
Symbol
Limits
Unit
Condition
Min.
Typ.
Max.
SCL clock frequency
fSCL
270
310
350
kHz
START hold time
tHD:STA
0.7
-
0.9
µs
SCL ”L” width
tLOW
1.4
-
1.8
µs
SCL ”H” width
tHIGH
1.4
-
1.8
µs
Data hold time
tHD:DAT
0.7
-
0.9
µs
Data setup time
tSU:DAT
0.7
-
0.9
µs
STOP setup time
tSU:STO
0.7
-
0.9
µs
Protocol
*IC does not support the write command.
*IC supports the following read command.
SDA
SCL
Address
Read
/Write
ACK
ACK
ACK
Data
Data
tHD;STA
tSU;STO
tSU;DAT
tHD;DAT
S
SLAVE
ADDRESS
W
1st WORD
ADDRESS
2nd WORD
ADDRESS
DATA(0)
DATA(n-3)
A
A
A
A
A
DATA(n-2)
A
DATA(n-1)
A
DATA(n)
P
Start
Stop
N


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