HB7121BELECTRONICS Datasheet, PDF (6/29 Pages) Hynix Semiconductor – CMOS IMAGE SENSOR With 8-bit ADC

Electronics Industries Co., Ltd.
System IC Division
PRELIMINARY
INPUT / OUTPUT AC CHARACTERISTICS CONTINUE
I²C Bus (Programming Serial Bus) Timing
HB7121B
CMOS IMAGE SENSOR
With 8-bit ADC
stop start
SDA
tr
tbu f
tf
tlow
start
stop
thd;s t a
SCK
thd;s t a
thd;dat
thigh
tsu;da t
tsu;sta
tsu;sto
I²C Bus Interface Timing
Parameter
SCK clock frequency
Time that I²C bus must be free before a new
transmission can start
Hold time for a START
LOW period of SCK
HIGH period of SCK
Setup time for START
Data hold time
Data setup time
Rise time of both SDA and SCK
Fall time of both SDA and SCK
Setup time for STOP
Capacitive load of each bus lines(SDA,SCK)
Symbol
f_sck
t_buf
t_hd;s_ta
t_low
t_high
t_su;s_ta
t_hd;d_at
t_su;d_at
t_r
t_f
t_su;s_to
C_b
Min.
0
1.2
1.0
1.2
1.0
1.2
1.3
250
1.2
Max.
400
250
300
Unit
KHz
us
us
us
us
us
us
ns
ns
ns
us
pf
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DA21991011R_1.0
-6-
1999 Hyundai System IC Division