DS2438 Dallas Semiconducotr, DS2438 Datasheet - Page 29

• Manufacturer Part Number: DS2438
• Description: Smart Battery Monitor
• Manufacturer: Dallas Semiconducotr

AC ELECTRICAL CHARACTERISTICS: NV MEMORY
AC ELECTRICAL CHARACTERISTICS: 1-WIRE INTERFACE
NOTES:
1. All voltages are referenced to GND.
2. Input load is to GND.
3. Current measurement accuracy is 2 LSb or 1%, whichever is greater.
PARAMETER
NV Write Cycle Time
EEPROM Writes (copy
scratchpad command)
EEPROM data retention
PARAMETER
Time Slot
Recovery Time
Write 0 Low Time
Write 1 Low Time
Read Data Valid
Reset Time High
Reset Time Low
Presence Detect High
Presence Detect Low
DQ Capacitance
SYMBOL
SYMBOL
N
t
t
t
t
t
t
t
t
C
t
LOW0
LOW1
t
t
EEDR
RSTH
SLOT
RSTL
EEWR
RDV
REC
PDH
PDL
WR
DQ
CONDITION
CONDITION
-20ºC to +55ºC
-20ºC to +55ºC
29 of 29
(-40 C to +85 C; 2.4V
(-40 C to +85 C; 2.4V
MIN
MIN
50k
480
480
10
60
60
15
60
1
1
TYP MAX UNITS
TYP MAX UNITS
2
120
120
980
240
10
15
15
60
25
writes
VDD
VDD
years
ms
pF
s
s
s
s
s
s
s
s
s
NOTES
NOTES
10.0V)
10.0V)
DS2438