Rainbow Electronics MAX6696 - Manual (Page 5)

MAX6695/MAX6696
Dual Remote/Local Temperature Sensors with
SMBus Serial Interface
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Pin Description
PIN
MAX6695 MAX6696
NAME FUNCTION
1 2 V CC
Supply Voltage Input, +3V to +3.6V. Bypass to GND with a 0.1µF capacitor. A
47
Ω series resistor is recommended but not required for additional noise
filtering. See Typical Operating Circuit.
2 3 DXP1
Combined Remote-Diode Current Source and A/D Positive Input for Remote-
Diode Channel 1. DO NOT LEAVE DXP1 FLOATING; connect DXP1 to DXN if no
remote diode is used. Place a 2200pF capacitor between DXP1 and DXN for
noise filtering.
3 4 DXN
Combined Remote-Diode Current Sink and A/D Negative Input. DXN is internally
biased to one diode drop above ground.
4 5 DXP2
Combined Remote-Diode Current Source and A/D Positive Input for Remote-
Diode Channel 2. DO NOT LEAVE DXP2 FLOATING; connect DXP2 to DXN if no
remote diode is used. Place a 2200pF capacitor between DXP2 and DXN for
noise filtering.
5 10 OT1
Overtemperature Active-Low Output, Open Drain. OT1 is asserted low only when
the temperature is above the programmed OT1 threshold.
6 8 GND Ground
7 9 SMBCLK SMBus Serial-Clock Input
8 11 ALERT
SMBus Alert (Interrupt) Active-Low Output, Open-Drain. Asserts when
temperature exceeds user-set limits (high or low temperature) or when a remote
sensor opens. Stays asserted until acknowledged by either reading the status
register or by successfully responding to an alert response address. See the
ALERT Interrupts section.
9 12 SMBDATA SMBus Serial-Data Input/Output, Open Drain
10 13 OT2
Overtemperature Active-Low Output, Open Drain. OT2 is asserted low only when
temperature is above the programmed OT2 threshold.
— 1, 16 N.C. No Connect
— 6 ADD1
SMBus Slave Address Select Input (Table 10). ADD0 and ADD1 are sampled
upon power-up.
— 7 RESET
Reset Input. Drive RESET high to set all registers to their default values (POR
state). Pull RESET low for normal operation.
— 14 ADD0
SMBus Slave Address Select Input (Table 10). ADD0 and ADD1 are sampled
upon power-up.
— 15 STBY
Hardware Standby Input. Pull STBY low to put the device into standby mode.
All registers’ data are maintained.