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BU21021GUL-E2 Scheda tecnica(PDF) 7 Page - Rohm

Il numero della parte BU21021GUL-E2
Spiegazioni elettronici  4-wire resistive Touch Screen Controller
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Produttore elettronici  ROHM [Rohm]
Homepage  http://www.rohm.com
Logo ROHM - Rohm

BU21021GUL-E2 Scheda tecnica(HTML) 7 Page - Rohm

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TSZ02201-0Y1Y0F300060-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
19.Jun.2012 Rev.001
www.rohm.com
TSZ22111・15・001
BU21021GUL
●HOST-I/F timing specification (4-wire SPI)
(Note: SCK=SCL_SCK, SI=SDA_SI, CSB=SEL_CSB and SO=SO)
4-wire SPI has the burst write and burst read.
The automatic address increment is done until 0x5F. After address 0x5F is accessed, it is not changed.
WA6 WA5 WA4 WA3 WA2 WA1 WA0 WD7 WD6 WD5 WD4 WD3 WD2 WD1 WD0 WD7 WD6
WD1 WD0
RA6RA5 RA4RA3 RA2 RA1 RA0
RD7 RD6 RD5 RD4 RD3 RD2 RD1 RD0 RD7 RD6
RD1 RD0 RD7
CSB
SCK
SI
write
SI
read
SO
read
Register address
Write (WA)
Write (WA + 1)
Write (WA + n)
Register address
Read (RA)
Read (RA + 1)
Read (RA + n)
HiZ
HiZ
t1
t2
t3
t4
t5
t8
t9
t6
t7
W/R
W/R
Figure 5. Timing specification (4-wire SPI)
Table 1. Timing Requirements: 4-wire SPI at VDD = 3.0V, Ta = 25℃
Parameter
Symbol
Rating
Unit
Conditions
Min
Typ
Max
CSB setup time
t1
30
-
-
ns
‘H’ width of SCK
t2
30
-
-
ns
‘L’ width of SCK
t3
30
-
-
ns
SI setup time
t4
20
-
-
ns
SI holding time
t5
20
-
-
ns
CSB holding time
t6
20
-
-
ns
‘H’ width of CSB
t7
50
-
-
ns
SO output delay time
t8
-
-
15
ns
SCK frequency
t9
-
-
15
MHz


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