Datasheet

PIN NAME FUNCTION
11 SCK CMOS Digital Input. Serial peripheral interface clock input.
12 DIN CMOS Digital Input. Serial peripheral interface data input.
13 DOUT CMOS Output. Serial peripheral interface data output.
14 RST Active-Low CMOS Digital Reset Input
15 WDO Active-Low Open-Drain Watchdog Output
16 CSW CMOS Digital Input. Case Switch. Active-high tamper detect input.
17 T1 Open-Drain Probe 1 Temperature Measurement
18 T2 Open-Drain Probe 2 Temperature Measurement
19 T3 Open-Drain Probe 3 Temperature Measurement
20 T4 Open-Drain Probe 4 Temperature Measurement
21 TC Input/Output Temperature Measurement Capacitor Connection
23 32KX0
Connections for 32.768kHz Quartz Crystal. An external CMOS 32.768kHz oscillator can also
drive the MAX35101. In this conguration, the 32KX1 pin is connected to the external oscillator
signal and the 32KX0 pin is left unconnected.
24 32KX1
26 STOP_DN
Downstream STOP Analog Input. Used for the signal that is received from the downstream
transmission of a time-of-ight measurement.
27 STOP_UP
Upstream STOP Analog Input. Used for the signal that is received from the upstream
transmission of a time-of-ight measurement.
31 X2
Connections for 4MHz Quartz Crystal. A ceramic resonator can also be used.
32 X1
— EP Exposed Pad. Connect to GND.
MAX35101 Time-to-Digital Converter with Analog Front-End
www.maximintegrated.com
Maxim Integrated │ 8
Pin Description (continued)