Rainbow Electronics DS3904 - Manual (Page 3)

DS3904
DS3904 Triple 128-Position Nonvolatile
Variable Digital Resistor/Switch
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AC ELECTRICAL CHARACTERISTICS
(V CC = +2.7V to +5.5V, T A = -40°C to +85°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Fast mode (Note 7) 0 400
SCL Clock Frequency f SCL
Standard mode (Note 7) 0 100
kHz
Fast mode (Note 7) 1.3 Bus Free Time between STOP
and START Conditions
t BUF
Standard mode (Note 7) 4.7
µs
Fast mode (Notes 7, 8) 0.6 Hold Time (Repeated) START
Condition
t HD:STA
Standard mode (Notes 7, 8) 4.0
µs
Fast mode (Note 7) 1.3
Low Period of SCL Clock t LOW
Standard mode (Note 7) 4.7
µs
Fast mode (Note 7) 0.6
High Period of SCL Clock t HIGH
Standard mode (Note 7) 4.0
µs
Fast mode (Notes 7, 9, 10) 0 0.9
Data Hold Time t HD:DAT
Standard mode (Notes 7, 9, 10) 0 0.9
µs
Fast mode (Note 7) 100
Data Setup Time t SU:DAT
Standard mode (Note 7) 250
ns
Fast mode 0.6
Start Setup Time t SU:STA
Standard mode 4.7
µs
Fast mode (Note 11) 20 + 0.1C B 300 Rise Time of Both SDA and SCL
Signals
t R
Standard mode (Note 11) 20 + 0.1C B 1000
ns
Fast mode (Note 11) 20 + 0.1C B 300 Fall Time of Both SDA and SCL
Signals
t F
Standard mode (Note 11) 20 + 0.1C B 300
ns
Fast mode 0.6
Setup Time for STOP Condition t SU:STO
Standard mode 4.0
µs
Capacitive Load for Each Bus
Line
C B (Note 11) 400 pF
EEPROM Write Time t W (Note 12) 20 ms
Startup Time t ST 2 ms
NONVOLATILE MEMORY CHARACTERISTICS
(V
CC
= +2.7V to +5.5V, T
A
= -40°C to +85°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Writes 85°C 50,000