BU21029GUL Datasheet, PDF (5/29 Pages) Rohm – 4-wire Resistive Touch Screen Controller

BU21029GUL
●Host interface AC timing
The slave address for 2-wire serial interface is selectable from “40h” or “41h” by “AD0” input.
AD0 = “L” : Slave Address = 40h
AD0 = “H” : Slave Address = 41h
Datasheet
2-wire serial I/F AC timing characteristics (Ta=25℃, VDD=PVDD=3.00V, GND=0.00V, unless otherwise noted)
PARAMETER
SCL clock frequency
Hold time for (repeated) START condition
Low period of SCL
High period of SCL
Setup time for repeated START condition
Data hold time
Data setup time
Rise time for both SCL and SDA
Fall time for both SCL and SDA
Setup time for STOP condition
Bus free time between a STOP
and START condition
SYMBOL
fSCL
tHD_STA
tLOW
tHIGH
tSU_STA
tHD_DAT
tSU_DAT
tR
tF
tSU_STO
tBUF
MIN.
0
0.6
1.3
0.6
0.6
0
0.1
20
20
0.6
1.3
RATING
TYP.
-
-
-
-
-
-
-
-
-
-
-
MAX.
400
-
-
-
-
0.9
-
300
300
-
-
UNIT
kHz
us
us
us
us
us
us
ns
ns
us
us
CONDITION
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TSZ22111・15・001
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TSZ02201-0Y1Y0F300120-1-2
11.Nov.2013 Rev.002