BU92747XXX Datasheet, PDF (11/46 Pages) Rohm – IrDA Controller LSI built-in Ir remote control

BD92747XXX
●Timing Diagram
Read Timing
trcs
CS
A_0～3
RD
tras
trpw
trdd
D_0～15
INTR
trch
trah
trcv
trdh
tintr
Infrared Ray (IR) Interface Timing
tspw
SIR
ftmmppww
MIR
tfpw
FIR
tfdpw
Datasheet
Write Timing
CS
A_0～3
WR
D_0～15
INTR
Reset Timing
twcs
twas
twpw
twds
twch
twah
trcv
twdh
tintr
RESET
trstw
●Ir remote control (serial I/F) AC Characteristics
Ta=25C, V_DD=1.8V, V_IO1=1.8V, V_IO2=1.8V and GND=0V unless otherwise stated.
Parameter
Limits
Symbol
Unit
Min.
Typ.
Max.
SCL clock frequency
fSCL
-
-
400
kHz
Bus free time
Set-up time for
(repeated) START condition
Hold time
(repeated) START condition
SCL LOW time
tBUF
1.3
-
tSU;STA
0.6
-
tHD;STA
0.6
-
tLOW
1.3
-
-
μs
--
μs
-
μs
-
μs
SCL HIGH time
tHIGH
0.6
-
-
μs
Data setup time
tSU;DAT
100
-
-
ns
Data hold time
tHD;DAT
0
-
-
ns
Setup time for STOP condition
tSU;STO
0.6
-
-
μs
Conditions
●Timing Diagram
(repeated)
START
condition
BIT7
tSU;STA
tLOW tHIGH
SCL
SDA
BIT6
1/f_SCL
･･･
Acknowledge
STOP
condition
tBUF tHD;STA
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© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
tSU;DAT
tHD;DAT
11/11
tSU;STO
TSZ02201-0E4E0F100020-1-2
24. June. 2015 Rev.001