ADT7320

Preliminary Technical Data

Rev. PrA | Page 6 of 24

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

12

11

10

1

3

4

GND

CT

9 INT

SCLK

DIN

2

DOUT

CS

ADT7320

TOP VIEW

(Not to Scale)

NOTES

1. NC = NO CONNECT.

2. THE EXPOSED PADDLE IS CONNECTED INTERNALLY.

FOR INCREASED RELIABILITY OF THE SOLDER

JOINTS AND MAXIMUM THERMAL CAPABILITY, IT IS

RECOMMENDED THAT THE PAD BE SOLDERED TO

THE GROUND PLANE.

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 in and clock out data to and from 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 selected when this input is low. The device is disabled when this pin is high.

5

NC

No Connect.

6

NC

No Connect.

7

NC

No Connect.

8

NC

No Connect.

9

INT

Overtemperature and Undertemperature Indicator. 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 Indicator. 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). The supply should be decoupled with a 0.1 μF ceramic capacitor to

ground.

13

NC

No Connect.

14

NC

No Connect.

15

NC

No Connect.

16

NC

No Connect.

EPAD

The exposed paddle is connected internally. For increased reliability of the solder joints and maximum

thermal capability, it is recommended that the pad be soldered to the ground plane.