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TCM809ZVB713 Datasheet

  • TCM809ZVB713

  • 3-Pin Microcontroller Reset Monitors

  • 206.02KB

  • 16頁

  • MICROCHIP   MICROCHIP

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TCM809/TCM810
3-Pin Microcontroller Reset Monitors
Features
鈥?Precision V
DD
Monitor for 2.5V, 3.0V, 3.3V, 5.0V
Nominal System Voltage Supplies
鈥?140 msec Minimum RESET Time-Out Period
鈥?RESET Output to V
DD
= 1.0V (TCM809)
鈥?Low Supply Current, 9 碌A (typ.)
鈥?V
DD
Transient Immunity
鈥?Small 3-Pin SC-70 and SOT-23B Packages
鈥?No External Components
鈥?Push-Pull RESET Output
鈥?Temperature Ranges:
- Industrial: SC-70 (E): -40擄C to +85擄C
- Extended: SOT-23, SC-70 (V): -40擄C to +125擄C
General Description
The TCM809 and TCM810 are cost-effective system
supervisor circuits designed to monitor V
DD
in digital
systems; providing a reset signal to the host processor,
when necessary. No external components are
required.
The RESET output is typically driven active within
65 碌sec of V
DD
falling through the reset voltage thresh-
old. RESET is maintained 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 SC-70
and SOT-23B packages.
The TCM809/TCM810 are optimized to reject fast
transient glitches on the V
DD
line. A low supply current
of 9 碌A (typ., V
DD
= 3.3V) make these devices suitable
for battery-powered applications.
Applications
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Computers
Embedded Systems
Battery-powered Equipment
Critical Microcontroller Power Supply Monitoring
Automotive
Pin Configurations
SOT-23B/SC-70
Typical Application Circuit
TCM809/
TCM810
V
DD
3
V
DD
V
DD
PICmicro
廬
Microcontroller
2
RESET
INPUT
(Active-Low)
GND
TCM809
RESET
TCM810
(RESET)
2
GND 1
3
V
DD
TCM809
RESET
GND
1
Note:
3-Pin SOT-23B is equivalent to
JEDEC TO-236.
漏
2005 Microchip Technology Inc.
DS21661D-page 1

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