BU21025GUL Datasheet, PDF (3/19 Pages) Rohm – 4-wire Resistive Touch Screen Controller

BU21025GUL
●Power On Reset Timing Chart
Datasheet
All specifications at 25℃, GND=0.00V unless otherwise noted.
PARAMETER
SYMBOL
Off period of VDD
Rise time for VDD
Fall time for VDD
Ready time for device
tOFF_VDD
tR_VDD
tF_VDD
tRDY
●2-wire Serial Interface Timing Chart
MIN.
0.3
-
0.5
-
RATING
TYP.
-
-
-
-
MAX.
-
100
-
2
UNIT CONDITION
s
us
ms
ms
All specifications at 25℃, VDD = 3.00V, GND=0.00V unless otherwise noted.
PARAMETER
SYMBOL
RATING
MIN. TYP.
SCL clock frequency
fSCL
0
-
Hold time for (repeated) START condition
tHD_STA
0.6
-
Low period of SCL
tLOW
1.3
-
High period of SCL
tHIGH
0.6
-
Setup time for repeated START condition
tSU_STA
0.6
-
Data hold time
tHD_DAT
0
-
Data setup time
tSU_DAT
100
-
Rise time for both SCL and SDA
tR
20
-
Fall time for both SCL and SDA
tF
20
-
Setup time for STOP condition
tSU_STO
0.6
-
Bus free time between a STOP and START condition
tBUF
1.3
-
MAX.
400
-
-
-
-
0.9
-
300
300
-
-
UNIT
KHz
us
us
us
us
us
ns
ns
ns
us
us
CONDITION
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
3/15
TSZ02201-0Y2Y0F300050-1-2
7.AUG.2012 Rev.002