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TCM809 데이터시트(Datasheet) 1 Page - Microchip Technology

부품명 TCM809
상세내용  3-Pin Microcontroller Reset Monitors
PDF  14 Pages
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제조사  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
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 2004 Microchip Technology Inc.
DS21661C-page 1
TCM809/TCM810
Features
• Precision VDD Monitor for 2.5V, 3.0V, 3.3V, 5.0V
Nominal System Voltage Supplies
• 140 msec Minimum RESET Time Out Period
• RESET Output to VDD = 1.0V (TCM809)
• Low Supply Current, 9 µA (typ.)
•VDD Transient Immunity
• Small 3-Pin SC-70 and SOT-23B Packages
• No External Components
• Push-Pull RESET Output
• Temperature Range:
- Industrial, SC-70 (E): -40
°C to +85°C
- Extended, SOT-23, SC-70 (V): -40
°C to +125°C
Applications
• Computers
• Embedded Systems
• Battery-Powered Equipment
• Critical Microcontroller Power Supply Monitoring
• Automotive
Typical Application Circuit
General Description
The TCM809 and TCM810 are cost-effective system
supervisor circuits designed to monitor VDD in digital
systems and provide a reset signal to the host proces-
sor, when necessary. No external components are
required.
The RESET output is typically driven active within
65 µsec of VDD falling through the reset voltage thresh-
old. RESET is maintained active for a minimum of
140 msec after VDD rises above the reset threshold.
The TCM810 has an active-high RESET output, while
the TCM809 has an active-low RESET output. The out-
put of the TCM809/TCM810 is valid down to VDD = 1V.
Both devices are available in 3-Pin SC-70 and SOT-23B
packages.
The TCM809/TCM810 is optimized to reject fast
transient glitches on the VDD line. A low supply current
of 9 µA (typ., VDD = 3.3V) make these devices suitable
for battery-powered applications.
Pin Configurations
1
TCM809
V
DD
V
DD
V
DD
RESET
RESET
INPUT
(Active-Low)
GND
GND
PICmicro®
Microcontroller
3
2
SOT-23B/SC-70
Note: 3-Pin SOT-23B is equivalent to
V
DD
TCM809 RESET
GND 1
2
TCM810 (RESET)
3
JEDEC TO-236.
3-Pin Microcontroller Reset Monitors




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