ADC121C021CIMK/NOPB National Semiconductor, ADC121C021CIMK/NOPB Datasheet - Page 16

• Manufacturer Part Number: ADC121C021CIMK/NOPB
• Description: IC ADC 12BIT I2C ALERT TSOT23-6
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of ADC121C021CIMK/NOPB

• Number Of Bits: 12
• Sampling Rate (per Second): 188.9k
• Data Interface: I²C, Serial
• Number Of Converters: 1
• Power Dissipation (max): 780µW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-6 Thin, TSOT-23-6
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ADC121C021CIMK; ADC121C021CIMK; ADC121C021CIMKTR

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1.6.1 Address Pointer Register
The address pointer determines which of the data registers is
accessed by the I
write operation is stored in the address pointer register. This
value selects the register that the following data bytes will be
written to or read from. Only the three LSBs of this register
are variable. The other bits must always be written to as zeros.
After a power-on reset, the pointer register defaults to all ze-
ros (conversion result register).
Default Value: 00h
P7
0
P6
0
P5
0
2
C interface. The first data byte of every
P4
0
P3
0
P2
Register Select
P1
FIGURE 6. Register Structure
P0
16
P2
0
0
0
0
1
1
1
1
P1
0
0
1
1
0
0
1
1
P0
0
1
0
1
0
1
0
1
30020969
Highest Conversion (read/write)
Lowest Conversion (read/write)
Conversion Result (read only)
Configuration (read/write)
Alert Status (read/write)
Hysteresis (read/write)
High Limit (read/write)
Low Limit (read/write)
REGISTER