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STC3115

Pin assignment

31

2

Pin assignment

3

Absolute maximum ratings and operating conditions

Table 1. STC3115 pin description

Pin

no.

CSP

bump

Pin

name

1. I = input, 0 = output, OD = open drain, A = analog, D = digital, NC = not connected

Function

1

A1

ALM

I/OD

Alarm signal output, open drain,

external pull-up with resistor

2

B1

SDA

I/OD

3C1

SCL

I_D

4

D1

GND

Ground

Analog and digital ground

5D2

NC

-

NC

6

D3

CG

I_A

Current sensing input

7

C3

RSTIO/BATD

I/OD

Reset sense input & reset control output (open drain)

or

Battery detection input

8

B2

BATD/CD

I/OA

Battery charge inhibit (active high output)

Battery detection (input)

9

B3

VCC

Supply

Power supply

10

A3

VIN

I_A

Battery voltage sensing input

Table 2. Absolute maximum ratings

Symbol

Parameter

Value

Unit

Maximum voltage on VCC pin

6

V

Voltage on I/O pins

-0.3 to 6

Storage temperature

-55 to 150

°

C

Maximum junction temperature

150

ESD

Electrostatic discharge (HBM: human body model)

2

kV

Table 3. Operating conditions

Symbol

Parameter

Value

Unit

2.7 to 4.5

V

2.0

Operating free air temperature range

-40 to 85

°

C

-20 to 70