Rainbow Electronics MAXQ2010 - Manual (Page 12)

MAXQ2010
16-Bit Mixed-Signal Microcontroller with LCD
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I 2 C BUS CONTROLLER TIMING (ACTING AS I 2 C MASTER)
(V DVDD = V AVDD = 2.7V to 3.6V, T A = -40°C to +85°C.) (Figure 4)
STANDARD MODE FAST MODE
PARAMETER SYMBOL
MIN MAX MIN MAX
UNITS
System Frequency f
SYS
0.90 3.60 MHz
Operating Frequency f I2C f SYS /8 f SYS /8 Hz
Hold Time After (Repeated)
START
t HD:STA t HIGH_I2C t HIGH_I2C μs
Clock Low Period t LOW_I2C 5t SYS 5t SYS μs
Clock High Period t HIGH_I2C 3t SYS 3t SYS μs
Setup Time for Repeated START t SU:STA t LOW_I2C t LOW_I2C μs
Hold Time for Data t HD:DAT 0 3.45 0 0.9 μs
Setup Time for Data t
SU:DAT
250 100 ns
SDA/SCL Fall Time t F_I2C 300 20+ 0.1C B 300 ns
SDA/SCL Rise Time t R_I2C 1000 20+ 0.1C B 300 ns
Setup Time for STOP t SU:STO t HIGH_I2C t HIGH_I2C μs
Bus-Free Time Between STOP
and START
t BUF t LOW_I2C t LOW_I2C μs
Capacitive Load for Each Bus
Line
C B 400 400 pF
Noise Margin at the Low Level
for Each Connected Device
(Including Hysteresis)
V NL_I2C 0.1 x V DVDD 0.1 x V DVDD V
Noise Margin at the High Level
for Each Connected Device
(Including Hysteresis)
V NH_I2C 0.2 x V DVDD 0.2 x V DVDD V