STM1403ARMQ6F STMICROELECTRONICS [STMicroelectronics], STM1403ARMQ6F Datasheet - Page 8

• Manufacturer Part Number: STM1403ARMQ6F
• Description: 3 V FIPS-140 security supervisor with battery switchover
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Description
Note:
8/35
Figure 2.
See
1. Normal mode: low when V
2. SAL, RST, PFO, and BLD are open drain.
3. V
Figure 3.
1. BAT54J (from STMicroelectronics) recommended
2. Required for battery-reverse charging protection
3. Open drain
4. V
battery.
REF
REF
Section 2: Pin descriptions on page 11
only for STM1403A; V
only for STM1403; V
V CC
MR
PFI
BAT54J
V BAT (1)
QFN16 connections
Block diagram
(1,2)
OUT
TPU
RST
SAL
TPU
V
MR
for STM1403B/C
is internally switched to V
SS
(2)
(2)
for STM1403B/C
TP 1 (NH)
TP 2 (NL)
TP 3 (NH)
TP 4 (NL)
V INT
BLD
1
2
3
4
(NH)
16
TP 1
V SO
V RST
V PFI
V DET
5
V HV
V LV
(2)
PFI
15
TP 2
(NL)
6
COMPARE @
1.237V V REF
POWER-UP
V
COMPARE
COMPARE
COMPARE
COMPARE
COMPARE
Generator
CCSW
(NH)
14
for details.
TP 3
7
(1)
CC
V
(NL)
TP 4
13
CC
8
12
11
10
and high when V
9
V
V
V
PFO
OUT
REF or
BAT
(2)
AI09683
V
TPU
OUT
(3)
Generator
is internally switched to
t rec
AI09684
V OUT
V TPU (4)
V REF (4)
V CCSW
RST (3)
PFO (3)
BLD (3)
SAL
(3)
STM1403