6 Pin Configuration and Functions

Figure 6-1 Pin Diagram

Table 6-1 Pin Functions

PIN		TYPE⁽¹⁾	DESCRIPTION
NAME	NO.	TYPE⁽¹⁾	DESCRIPTION
BAT	D2	P	Battery voltage measurement input. Kelvin battery sense connection to BAT_SNS. Connect a capacitor (1 µF) between BAT and VSS. Place the capacitor close to the gauge.
CE	D3	I	Active-high chip enable
BAT_SNS	C2	AI	Battery sense
INT	A1	O	Interrupt for voltage, temperature, and state of charge (programmable active high or low)
PULS	A2	O	Programmable pulse width with active-high or -low option
TS	B1	AI	Temperature input for ADC
NU	C3	NC	Makes no external connection
SCL	B3	I/O	Serial clock for I²C interface that requires an external pullup when used. It can be left floating if unused.
SDA/HDQ	A3	I/O	Serial data for I²C interface and one-wire interface for HDQ (selectable) that requires an external pullup when used. It can be left floating if unused.
SRP	D1	I	Analog input pin connected to the internal coulomb counter peripheral for integrating a small voltage between SRP (positive side) and SRN
SRN	C1	I	Analog input pin connected to the internal coulomb counter peripheral for integrating a small voltage between SRP (positive side) and SRN
VSS	B2	P	Device ground

(1) P = Power Connection, O = Digital Output, AI = Analog Input, I = Digital Input, I/O = Digital Input/Output, NU = Not Used