st意法5伏的电池切换复位ic stm704
品牌 |
st意法 |
型号 |
stm704 |
批号 |
09+ |
封装 |
so8 |
stm704 5伏的电池切换
the stm690a/692a/703/704/802/805/817/818/819 supervisors are self-contained devices which provide microprocessor supervisory functions with the ability to non-volatize and write-protect external lpsram. a precision voltage reference and comparator monitors the vcc input for an out-of-tolerance condition. when an invalid vcc condition occurs, the reset output (rst) is forced low (or high in the case of rst). these devices also offer a watchdog timer (except for stm703/704/819) as well as a power-fail comparator (except for stm818) to provide the system with an early warning of impending power failure.
these devices are available in a standard 8-pin soic package or a space-saving 8-pin tssop package.
stm704 产品特性:
- 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) trec
- watchdog timer - 1.6 sec (typ)
- 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 vcc = 1.0 v
- operating temperature:
–40°c to +85°c (industrial grade) - rohs compliance
– lead-free components are compliant with the rohs directive.
stm704 订购型号:
ordering model | package | rohs compliance grade | general description | packing type |
stm704m6e | so8 | ecopack1 | 5v supervisor | tube |
stm704m6f | so8 | ecopack1 | 5v supervisor | tape and reel |
stm704rm6f | so8 | ecopack1 | 5v supervisor | tape and reel |
stm704 技术支持
- stm704 数据手册datasheet 下载.pdf
- 微处理器监控器选型指南
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