ADT7320

Data Sheet

Rev. 0 | Page 6 of 24

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

12

11

10

1

3

4

17 EPAD

GND

CT

9 INT

SCLK

DIN

2

DOUT

CS

ADT7320

TOP VIEW

(Not to Scale)

NOTES

1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN.

THE NC PIN IS NOT BONDED TO THE DIE INTERNALLY.

2. TO ENSURE CORRECT OPERATION, THE EXPOSED PAD

SHOULD EITHER BE LEFT FLOATING OR CONNECTED

TO GROUND.

Figure 3. Pin Configuration

Table 4. Pin Function Descriptions

Pin No.

Mnemonic

Description

1

SCLK

Serial Clock Input. The serial clock is used to clock data into and out of any register of the ADT7320.

2

DOUT

Serial Data Output. Data is clocked out on the SCLK falling edge and is valid on the SCLK rising edge.

3

DIN

Serial Data Input. Serial data to be loaded to the control registers of the part is provided on this input. Data is

clocked into the registers on the rising edge of SCLK.

4

CS

Chip Select Input. The device is enabled when this input is low. The device is disabled when this pin is high.

5

NC

No Connect. Do not connect to this pin. The NC pin is not bonded to the die internally.

6

NC

No Connect. Do not connect to this pin. The NC pin is not bonded to the die internally.

7

NC

No Connect. Do not connect to this pin. The NC pin is not bonded to the die internally.

8

NC

No Connect. Do not connect to this pin. The NC pin is not bonded to the die internally.

9

INT

Overtemperature and Undertemperature Interrupt. Logic output. Power-up default setting is as an active low

comparator interrupt. Open-drain configuration. A pull-up resistor is required, typically 10 kΩ.

10

CT

Critical Overtemperature Interrupt. Logic output. Power-up default polarity is active low. Open-drain

configuration. A pull-up resistor is required, typically 10 kΩ.

11

GND

Analog and Digital Ground.

12

Positive Supply Voltage (2.7 V to 5.5 V). Decouple the supply with a 0.1 μF ceramic capacitor to GND.

13

NC

No Connect. Do not connect to this pin. The NC pin is not bonded to the die internally.

14

NC

No Connect. Do not connect to this pin. The NC pin is not bonded to the die internally.

15

NC

No Connect. Do not connect to this pin. The NC pin is not bonded to the die internally.

16

NC

No Connect. Do not connect to this pin. The NC pin is not bonded to the die internally.

17

EPAD

Exposed Pad. To ensure correct operation, the exposed pad should either be left floating or connected to ground.