參數(shù)資料
型號: TCM809
廠商: Microchip Technology Inc.
英文描述: 3-Pin Microcontroller Reset Monitors(3引腳微控制器復(fù)位監(jiān)控器)
中文描述: 3引腳單片機(jī)復(fù)位監(jiān)控器(3引腳微控制器復(fù)位監(jiān)控器)
文件頁數(shù): 1/16頁
文件大?。?/td> 298K
代理商: TCM809
2002 Microchip Technology Inc.
DS21661B-page 1
M
Features
Precision V
DD
Monitor for 2.5V, 3.0V, 3.3V, 5.0V
Nominal System Voltage Supplies
140 msec Minimum RESET Timeout Period
RESET Output to V
DD
= 1.0V (TCM809)
Low Supply Current, 9 μA (typ.)
V
DD
Transient Immunity
Small 3-Pin SC-70 and SOT-23B Packages
No External Components
Push-pull RESET output
Temperature Range:
- Commercial, SC-70(E):
- Industrial, SOT-23, SC-70(V):
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 V
DD
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
20 μsec (SOT-23) or 65 μsec (SC-70) of V
DD
falling
through the reset voltage threshold. RESET is main-
tained active for a minimum of 140 msec after V
DD
rises above the reset threshold. The TCM810 has an
active-high RESET output while the TCM809 has an
active-low RESET output. The output of the TCM809/
TCM810 is valid down to V
DD
= 1V. Both devices are
available in 3-Pin SOT-23B and SC-70 packages.
The TCM809/TCM810 are optimized to reject fast tran-
sient glitches on the V
DD
line. Low supply current of
9 μA (typ., V
DD
= 3.3V) makes these devices suitable
for battery powered applications.
Pin Configurations
-40
°
C to +85
°
C
-40
°
C to +125
°
C
1
TCM809
V
DD
V
DD
V
DD
RESET
RESET
INPUT
(Active Low)
GND
GND
PIC
Microcontroller
3
2
SOT-23B/SC-70
Note:
3-Pin SOT-23B is equivalent to JEDEC TO-236
V
DD
TCM809
RESET
TCM810
(RESET)
GND
T
T
1
2
3
o
TCM809/TCM810
3-Pin Microcontroller Reset Monitors
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