STM6718 STMicroelectronics, STM6718 Datasheet - Page 9

• Manufacturer Part Number: STM6718
• Description: Dual/triple ultra-low voltage supervisors with push-button reset (with delay option)
• Manufacturer: STMicroelectronics

Specifications of STM6718

• Primary Supply (vcc1) Monitor. Fixed (factory-programmed) Reset Thresholds: 4.63 V to 1.58 V
• Fixed (factory-programmed) Reset Thresholds: 3.08 V to 0.79 V
• Tertiary Supply Monitor (using Externally Adjustable Rstin): 0.626 V internal reference
• Reset Delay Time (trec) On Power-up: 13.2 ms, 210 ms, 900 ms (typ)
• Operating Temperature: –40 °C to 85 °C (industrial grade)

STM6717/6718/6719/6720/STM6777/6778/6779/6780
Figure 9.
1. V
2. RSTIN available only on STM6719/20/79/80.
3. MRC available only on STM6777/78/79/80.
Figure 10. Hardware hookup
1. V
2. RSTIN available only on STM6719/20/79/80.
3. MRC available only on STM6777/78/79/80.
CC2
CC2
input is available on STM6717/18/19/20/77/78.
V CC3 = (626.5mV)
is available only on STM6717/18/19/20/77/78.
Block diagram
RSTIN (2)
V CC2 (1)
MRC (3)
V CC1
MR
(
R1 + R2
R2
R1
R2
)
V CC1
V CC3
Push-button
Doc ID 11469 Rev 8
0.1µF
V REF/2 = 0.626
Switch
From DC/DC Converter
V CC2 (1)
Logic
V RST1
V RST2
0.1µF
V CC1
C
COMPARE
COMPARE
COMPARE
RSTIN (2)
V CC1
V CC2
MR
MRC
STM67xx
(3)
V SS
RST
Generator
RST (To Processor Reset)
t rec
RST
Description
AI10422
AI10421
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