JAJSFF4D May 2018 – December 2019 MSP430FR2153 , MSP430FR2155 , MSP430FR2353 , MSP430FR2355
PRODUCTION DATA.
This device features two enhanced comparators: eCOMP0 and eCOMP1. The enhanced comparator is an analog voltage comparator with a built-in 6-bit DAC as an internal voltage reference. The integrated 6-bit DAC can be set to 64 steps for the comparator reference voltage. This module has 4-level programmable hysteresis and configurable power modes: high-power mode or low-power mode.
The eCOMP0 supports a propagation delay up to 1 µs in high-power mode. In low-power mode, eCOMP0 supports 3.2-µs delay with 1.5-µA leakage at room temperature, which can be an ideal wake-up source in LPM3 for a voltage monitor.
The eCOMP1 supports a propagation delay up to 100 ns in high-power mode. In low-power mode, eCOMP1 supports 320-ns delay with 10-µA leakage at room temperature.
Both eCOMP0 and eCOMP1 contains a programmable 6-bit DAC that can use internal shared reference (1.5, 2.0, or 2.5-V) for high precision comparison threshold. In addition to internal shared reference, a low-power 1.2-V reference is fixed at channel 2 of both inverting and non-inverting path that allows the DAC turned off for saving powers.
The eCOMP0 supports external inputs and internal inputs (see Table 5-23) and outputs (see Table 5-25)
CPPSEL | eCOMP0 CHANNELS | CPNSEL | eCOMP0 CHANNELS |
---|---|---|---|
000 | P1.0/COMP0.0/A0 | 000 | P1.0/COMP0.0/A0 |
001 | P1.1/OA0O/COMP0.1/A1 | 001 | P1.1/OA0O/COMP0.1/A1 |
010 | Low-power 1.2-V reference | 010 | Low-power 1.2-V reference |
011 | N/A | 011 | N/A |
100 | N/A | 100 | N/A |
101 | P1.1/OA0O/COMP0.1/A1 | 101 | P3.1/OA2O |
110 | eCOMP0 6-bit DAC | 110 | eCOMP0 6-bit DAC |
CPPSEL | eCOMP1 CHANNELS | CPNSEL | eCOMP1 CHANNELS |
---|---|---|---|
000 | P2.5/COMP1.0 | 000 | P2.5/COMP1.0 |
001 | P2.4/COMP1.1 | 001 | P2.4/COMP1.1 |
010 | Low-power 1.2-V reference | 010 | Low-power 1.2-V reference |
011 | N/A | 011 | N/A |
100 | N/A | 100 | N/A |
101 | P1.5/OA1O/A5 | 101 | P3.5/OA3O |
110 | eCOMP1 6-bit DAC | 110 | eCOMP1 6-bit DAC |
ECOMP0 OUT | EXTERNAL PINOUT, MODULE |
---|---|
1 | P2.0 |
2 | TB0.1B, TB0 (TB0OUTH), TB1 (TB1OUTH), ADC trigger |
3 | Reserved |
4 | Reserved |
ECOMP1 OUT | EXTERNAL PINOUT, MODULE |
---|---|
1 | P2.1 |
2 | TB2.1B, TB2 (TB2OUTH), TB3 (TB3OUTH) |
3 | Reserved |
4 | MFM input |