STM6905 STMicroelectronics, STM6905 Datasheet - Page 2

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STM6905

Manufacturer Part Number
STM6905
Description
Quintuple, ultralow voltage supervisor with push-button reset
Manufacturer
STMicroelectronics
Datasheet

Specifications of STM6905

Primary Supply (vcc) Monitor. Fixed (factory - Programmed) Reset Thresholds
3.078 V to 2.866 V
Second Fixed (v2in) Monitor. Fixed (factoryprogrammed) Reset Thresholds
2.333 V to 1.050 V
Reset Delay Time (trec) On Power-up
210 ms (typ)
Operating Temperature
–40°C to 85°C (industrial grade)

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Contents
1
2
3
4
5
6
7
8
9
10
2/19
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1
2.2
2.3
2.4
2.5
2.6
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1
3.2
Voltage monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Package marking information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Push-button reset input (MR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
V
V2IN second fixed voltage monitoring input . . . . . . . . . . . . . . . . . . . . . . . . 7
V
V3IN, V4IN, and V5IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
RST active-low, open drain reset output . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Setting the adjustable voltage levels for V3IN, V4IN, and V5IN inputs . . . . 9
Power on reset (t
CC
SS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
primary supply voltage monitoring input . . . . . . . . . . . . . . . . . . . . . . . 7
REC
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

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