Datasheet > STM819L/M

STM819L/M

更新时间： 2024-11-27 06:14:51

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		电池
页数	文件大小	规格书
43页	1146K
描述
5 V supervisor with battery switchover

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中文翻译

获取价格

数据手册

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STM819L/M 数据手册

STM690A, STM692A, STM703

STM704, STM802, STM805, STM817/8/9

5 V supervisor with battery switchover

Features

■ 5 V operating voltage

■ NVRAM supervisor for external LPSRAM

■ Chip-enable gating (STM818 only) for external

LPSRAM (7 ns max prop delay)

■ RST and RST outputs

■ 200 ms (typ) t

rec

■ Watchdog timer - 1.6 sec (typ)

SO8 (M)

■ Automatic battery switchover

■ Low battery supply current - 0.4 µA (typ)

■ Power-fail comparator (PFI/PFO)

■ Low supply current - 40 µA (typ)

■ Guaranteed RST (RST) assertion down to

= 1.0 V

■ Operating temperature:

TSSOP8 3 x 3 (DS)⁽¹⁾

–40 °C to +85 °C (industrial grade)

■ RoHS compliance

– Lead-free components are compliant with

the RoHS directive

1. Contact local ST sales office for availability.

Table 1.

Device summary

Manual Battery

Chip-

enable

gating

Battery

freshness

seal

Watchdog Active-low Active-

Power-fail

comparator

Part number

reset

switch-

over

input

RST⁽¹⁾

high RST

input⁽¹⁾

STM690A

STM692A

STM703

✓

STM704

STM802L/M

STM805L

✓

STM817L/M

STM818L/M

STM819L/M

✓

1. All RST and RST outputs are push-pull.

August 2010

Doc ID 10522 Rev 10

1/43

www.st.com

12 3 4 5 6 7...43

中文翻译

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