STM6321SWY6F STMicroelectronics, STM6321SWY6F Datasheet - Page 2
![IC SUPERVISOR TIMR/RESET SOT23-5](/photos/1/38/13847/497-sot-23-5_series_sml.jpg)
STM6321SWY6F
Manufacturer Part Number
STM6321SWY6F
Description
IC SUPERVISOR TIMR/RESET SOT23-5
Manufacturer
STMicroelectronics
Type
Simple Reset/Power-On Resetr
Datasheet
1.STM6321SWY6F.pdf
(29 pages)
Specifications of STM6321SWY6F
Number Of Voltages Monitored
1
Output
Open Drain, Push-Pull
Reset
Active High/Active Low
Reset Timeout
140 ms Minimum
Voltage - Threshold
2.93V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Number Of Elements
1
Monitored Voltage 1 (typ)
2.5/3/3.3/5V
Threshold Voltage 1 (max)
2.96V
Battery Backup Switching
No
Watchdog Timer
Yes
Chip Enable Signals
No
Reset Active Time
280ms
Manual Reset
No
Package Type
SOT-23
Operating Supply Voltage (min)
1V
Operating Supply Voltage (max)
5.5V
Reset Threshold Voltage (max)
2.96V
Reset Threshold Voltage (min)
2.89V
Family Name
STM6321
Power Dissipation
320mW
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Power Fail Detection
No
Mounting
Surface Mount
Pin Count
5
Supply Current
0.012mA
Monitored Voltage
2.5 V, 3 V, 3.3 V, 5 V
Output Type
Active High, Active Low, Open Drain, Push-Pull
Watchdog
Watchdog
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1 V
Supply Current (typ)
12 uA
Maximum Power Dissipation
320 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Undervoltage Threshold
2.89 V
Overvoltage Threshold
2.96 V
Power-up Reset Delay (typ)
280 ms
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-6927-2
STM6321SWY6F
STM6321SWY6F
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
STM6321SWY6F
Manufacturer:
ST
Quantity:
20 000
Contents
Contents
1
2
3
4
5
6
7
8
9
2/29
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.1
2.2
2.3
2.4
2.5
2.6
Typical operating characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1.1
1.1.2
1.1.3
1.1.4
1.1.5
Reset output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Open drain RST output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Push-button reset input (STM6322/6821/6822/6823/6825) . . . . . . . . . . . 11
Watchdog input (STM6321/6821/6822/6823/6824) . . . . . . . . . . . . . . . . . 11
Applications information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.5.1
2.5.2
Interfacing to microprocessors with bidirectional reset pins . . . . . . . . . . . 12
Active-low, push-pull reset output (RST) - 6823/6824/6825 . . . . . . . . . . 7
Active-low, open drain reset output (RST) - STM6321/6322/6822 . . . . . 7
Push-button reset input (MR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Watchdog input (WDI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Active-high reset output (RST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Watchdog input current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Ensuring a valid reset output down to V
Doc ID 11110 Rev 10
STM6321/6322STM6821/6822/6823/6824/6825
CC
= 0 V . . . . . . . . . . . . . . . . . . 11