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LM83 Datasheet(PDF) 15 Page - National Semiconductor (TI) |
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LM83 Datasheet(HTML) 15 Page - National Semiconductor (TI) |
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15 / 20 page ![]() 1.0 Functional Description (Continued) D5: T_CRIT mask for Diode 1, when set to 1 a Diode 1 temperature reading that exceeds T_CRIT setpoint will not activate the T_CRIT_A pin. D4: T_CRIT mask for Diode 2, when set to 1 a Diode 2 temperature reading that exceeds T_CRIT setpoint will not activate the T_CRIT_A pin. D3: T_CRIT mask for Diode 3, when set to 1 a Diode 3 temperature reading that exceeds T_CRIT setpoint will not activate the T_CRIT_A pin. D2: T_CRIT mask for Local reading, when set to 1 a Local temperature reading that exceeds T_CRIT setpoint will not activate the T_CRIT_A pin. D1: INT active state inversion. When INT Inversion is set to a 1 the active state of the INT output will be a logical high. A low would then select an active state of a logical low. D6 and D0: These bits are always set to 0 and reserved for future use. A write of 1 will return a 0 when read. 2.6 LOCAL, DIODE 1, DIODE 2 and DIODE 3 HIGH SETPOINT REGISTERS (LHS, D1RHS, D2RHS and D3RHS) (Read Address 05h, 07h, 38h, 3Ah /Write Address 0Bh, 0Dh, 50h, 52h): D7 D6 D5 D4 D3 D2 D1 D0 MSB Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 LSB D7–D0: HIGH setpoint temperature data. Power up default is LHIGH = RD1HIGH=RD2HIGH=RD3HIGH = 127˚C. 2.7 T_CRIT REGISTER (TCS) (Read Address 42h/Write Address 5Ah): D7 D6 D5 D4 D3 D2 D1 D0 MSB Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 LSB D7–D0: T_CRIT setpoint temperature data. Power up default is T_CRIT = 127˚C. www.national.com 15 |
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