DS1841(2008) 查看數據表（PDF） - Maxim Integrated
零件编号
产品描述 (功能)
生产厂家
DS1841 Datasheet PDF : 17 Pages
| |||
Temperature-Controlled, NV, I2C,
Logarithmic Resistor
I2C AC ELECTRICAL CHARACTERISTICS (See Figure 3) (continued)
(VCC = +2.7V to +5.5V, TA = -40°C to +100°C, timing referenced to VIL(MAX) and VIH(MIN).)
PARAMETER
EEPROM Write Time
A0, A1 Setup Time
A0, A1 Hold Time
Input Capacitance on
A0, A1, SDA, or SCL
SYMBOL
tW
tSU:A
tHD:A
CONDITIONS
(Note 8)
Before START
After STOP
CI
MIN TYP
10
0.6
0.6
5
Startup Time
tST
MAX
20
UNITS
ms
μs
μs
10
pF
2
ms
NONVOLATILE MEMORY CHARACTERISTICS
(VCC = +2.7V to +5.5V)
PARAMETER
EEPROM Write Cycles
EEPROM Write Cycles
SYMBOL
CONDITIONS
TA = +85°C
TA = +25°C (Note 9)
MIN TYP
50,000
200,000
MAX
UNITS
Writes
Writes
Note 1: All voltages are referenced to ground. Currents entering the IC are specified positive and currents exiting the IC are
negative.
Note 2: ICC is specified with the following conditions: SCL and SDA = VCC, RW and RH floating with Update Mode bit = 1.
Note 3: This is the minimum VCC voltage that causes NV memory to be recalled.
Note 4: This is the time from VCC > VPOR until initial memory recall is complete.
Note 5: Guaranteed by design.
Note 6: I2C interface timing shown is for Fast-Mode (400kHz) operation. This device is also backward-compatible with I2C-
Standard Mode timing.
Note 7: CB—total capacitance of one bus line in picofarads.
Note 8: EEPROM write time begins after a STOP condition occurs.
Note 9: Guaranteed by characterization.
4 _______________________________________________________________________________________
Share Link: 