Datasheet

DocID023755 Rev 4 5/31
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
Type
(1)
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 I
2
C serial data
3C1 SCL I_DI
2
C serial clock
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
V
CCMAX
Maximum voltage on VCC pin 6
V
V
IO
Voltage on I/O pins -0.3 to 6
T
STG
Storage temperature -55 to 150
°C
T
J
Maximum junction temperature 150
ESD Electrostatic discharge (HBM: human body model) 2 kV
Table 3. Operating conditions
Symbol Parameter Value Unit
V
CC
Operating supply voltage on V
CC
2.7 to 4.5
V
V
MIN
Minimum voltage on V
CC
for RAM content retention 2.0
T
OPER
Operating free air temperature range
-40 to 85
°C
T
PERF
-20 to 70