STM704 STMicroelectronics, STM704 Datasheet - Page 6

• Manufacturer Part Number: STM704
• Description: 5V Supervisor
• Manufacturer: STMicroelectronics

Specifications of STM704

• Operating Temperature: –40 °C to +85 °C (industrial grade)

Description
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Description
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
V
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.
Figure 1.
1. For STM805, reset output is active-high.
Figure 2.
CC
input for an out-of-tolerance condition. When an invalid V
Logic diagram (STM690A/692/802/805/817)
Logic diagram (STM703/704/819)
WDI
Doc ID 10522 Rev 10
MR
PFI
PFI
V
V
STM690A/
692A/802/
STM703/
704/819
CC
805/817
CC
V
V
STM690A/692A/703/704/802/805/817/818/819
SS
SS
V
V
BAT
BAT
V
RST
PFO
V
RST(RST)
PFO
OUT
OUT
CC
condition occurs, the reset
(1)
AI07894
AI07895