TCS3471 Datasheet, PDF (5/22 Pages) TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS – COLOR LIGHT-TO-DIGITAL CONVERTER

TCS3471
COLOR LIGHT-TO-DIGITAL CONVERTER
AC Electrical Characteristics, V_DD = 3 V, T_A = 255C (unless otherwise noted)
PARAMETER^†
TEST CONDITIONS
MIN
f_(SCL)
Clock frequency (I²C only)
0
t_(BUF)
Bus free time between start and stop condition
1.3
t_(HDSTA)
Hold time after (repeated) start condition. After
this period, the first clock is generated.
0.6
t_(SUSTA)
Repeated start condition setup time
0.6
t_(SUSTO)
Stop condition setup time
0.6
t_(HDDAT)
Data hold time
0
t_(SUDAT)
Data setup time
100
t_(LOW)
SCL clock low period
1.3
t_(HIGH)
SCL clock high period
0.6
t_F
Clock/data fall time
t_R
Clock/data rise time
C_i
Input pin capacitance
† _{Specified by design and characterization; not production tested.}
TAOS115 − MARCH 2011
TYP MAX UNIT
400 kHz
μs
μs
μs
μs
μs
ns
μs
μs
300 ns
300 ns
10 pF
PARAMETER MEASUREMENT INFORMATION
SCL
t_(BUF)
SDA
t_(LOW)
t_(R)
V_IH
V_IL
t_(HDSTA)
t_(HDDAT)
V_IH
V_IL
t_(F)
t_(HIGH) t_(SUSTA)
t_(SUDAT)
P
Stop
Condition
S
Start
Condition
SCL
S
Start
Stop
t_(LOWSEXT)
SCL_ACK
SCL_ACK
t_(LOWMEXT)
t_(LOWMEXT)
t_(LOWMEXT)
SDA
Figure 1. Timing Diagrams
t_(SUSTO)
P
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r
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Copyright E 2011, TAOS Inc.
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