DS1678 Datasheet, PDF (3/25 Pages) Maxim Integrated Products – Real-Time Event Recorder

DS1678 Real-Time Event Recorder
AC ELECTRICAL CHARACTERISTICS
(V_CC= 2.6V to 5.5V or V_BAT = 2.6V to 3.5V, T_A = -40°C to +85°C.) (Note 1)
PARAMETER
SYMBOL CONDITIONS MIN
Input Capacitance
C_I
INT
Minimum Signal Width
Minimum Event Rate
t_GLITCH
t_EVENT
0.122
0.854
TYP
10
MAX
0.245
1.22
UNITS
pF
ms
ms
AC ELECTRICAL CHARACTERISTICS
(V_CC = 4.5V to 5.5V, T_A = -40°C to +85°C.) (Note 1)
PARAMETER
SYMBOL CONDITIONS
SCL Clock Frequency
Bus Free Time Between a STOP and
START Condition
Hold Time (Repeated) START
Condition (Note 3)
LOW Period of SCL
HIGH Period of SCL
Setup Time for a Repeated START
Data Hold Time (Note 4)
Data Setup Time (Note 5)
Rise Time of Both SDA and SCL
Signals (Note 6)
Fall Time of Both SDA and SCL
Signals (Note 6)
Setup Time for STOP
Capacitive Load for Each Bus Line
(Note 6)
Input Capacitance (SCL, SDA)
f_SCL
t_BUF
t_HD:STA
t_LOW
t_HIGH
t_SU:STA
t_HD:DAT
t_SU:DAT
t_R
t_F
t_SU:STO
C_B
C_I
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
MIN TYP
100
1.3
4.7
0.6
4.0
1.3
4.7
0.6
4.0
0.6
4.7
0
0
100
250
20 + 0.1C_B
20 + 0.1C_B
20 + 0.1C_B
20 + 0.1C_B
0.6
4.0
MAX
400
100
0.9
300
1000
300
300
UNITS
kHz
µs
µs
µs
µs
µs
µs
ns
ns
ns
µs
400
pF
5
pF
WARNING: Under no circumstances are negative undershoots of any amplitude allowed
when the device is in write protect.
3 of 25