Rainbow Electronics DS2784 - Manual (Page 4)

DS2784: 1-Cell Stand-Alone Fuel Gauge IC with Li+ Protector and SHA-1 Authentication
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EEPROM RELIABILITY SPECIFICATION
(V
DD
= 2.5V to 5.5V, T
A
= -20 °C to +70°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
EEPROM Copy Time t
EEC
10 ms
EEPROM Copy Endurance N
EEC
T
A
= +50°C 50,000 cycles
ELECTRICAL CHARACTERISTICS: 1-Wire Interface, Standard
(V
DD
= 2.5V to 5.5V, T
A
= -20 °C to +70°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Time Slot t
SLOT
60 120 μs
Recovery Time t
REC
1 μs
Write-0 Low Time t
LOW0
60 120 μs
Write-1 Low Time t
LOW1
1 15 μs
Read-Data Valid t
RDV
15 μs
Reset-Time High t
RSTH
480 μs
Reset-Time Low t
RSTL
480 960 μs
Presence-Detect High t
PDH
15 60 μs
Presence-Detect Low t
PDL
60 240 μs
ELECTRICAL CHARACTERISTICS: 1-Wire Interface, Overdrive
(V
DD
= 2.5V to 5.5V, T
A
= -20 °C to +70°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Time Slot t
SLOT
6 16 μs
Recovery Time t
REC
1 μs
Write-0 Low Time t
LOW0
6 16 μs
Write-1 Low Time t
LOW1
1 2 μs
Read-Data Valid t
RDV
2 μs
Reset-Time High t
RSTH
48 μs
Reset-Time Low t
RSTL
48 80 μs
Presence-Detect High t
PDH
2 6 μs
Presence-Detect Low t
PDL
8 24 μs
Note 1: All voltages are referenced to V
SS
.
Note 2: Factory-calibrated accuracy. Higher accuracy can be achieved by in-system calibration by the user.
Note 3: Accumulation bias and offset bias registers set to 00h. NBEN bit set to 0.
Note 4: Parameters guaranteed by design.
Note 5: CP pin externally driven to 10V.
Note 6: Overvoltage and undervoltage delays (t
OVD
, t
UVD
) are reduced to 0s if the OV or UV condition is detected within 100ms of entering
Active mode.
Note 7: t
UVD
MIN determined by stepping the voltage on V
IN
from V
UV
+ 250mV to V
UV
- 250mV.