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參數(shù)資料
| 型號(hào)： | TCM809 |
| 廠商： | TelCom Semiconductor, Inc. |
| 英文描述： | 3-PIN UP RESET MONITORS |
| 中文描述： | 3引腳復(fù)位監(jiān)測(cè)儀 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 60K |
| 代理商： | TCM809 |
5-15
TELCOM SEMICONDUCTOR, INC.
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PRELIMINARY INFORMATION
3-PIN
μ
P RESET MONITORS
FEATURES
I
Precision V
CC
Monitor for 3.0V, 3.3V, 5.0V
Nominal System V Supplies
140msec Guaranteed Minimum RESET, RESET
Output Duration
RESET Output Guaranteed to V
CC
= 1.0V (TCM809)
Low 17
μ
A Supply Current
V
CC
Transient Immunity
Small SOT-23B-3 Package
No External Components
I
I
I
I
I
I
TYPICAL APPLICATIONS
I
I
I
I
Computers
Embedded Systems
Battery Powered Equipment
Critical
μ
P Power Supply Monitoring
GENERAL DESCRIPTION
The TCM809 and TCM810 are cost-effective system
supervisor circuits designed to monitor V
CC
in digital sys-
tems and provide a reset signal to the host processor when
necessary. No external components are required.
The reset output is driven active within 20msec of V
CC
falling through the reset voltage threshold. Reset is main-
tained active for a minimum of 140msec after V
CC
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 is guaranteed valid down
to V
CC
= 1V. Both devices are available in a
SOT-23B-3 package.
The TCM809/810 are optimized to reject fast transient
glitches on the V
CC
line. Low supply current of 17
μ
A
(V
CC
= 3.3V) makes these devices suitable for battery
powered applications.
TYPICAL OPERATING CIRCUIT
TCM809
TCM810
ORDERING INFORMATION
Part No.
Package
Temp. Range
T
CM809xENB
TCM810xENB
NOTE: The "X" denotes a suffix for V
CC
threshold - see table below.
SOT-23B-3
SOT-23B-3
– 40
°
C to +85
°
C
– 40
°
C to +85
°
C
PIN CONFIGURATION
Suffix
Reset V
CC
Threshold (V)
4.63
4.38
3.08
2.93
2.63
L
M
T
S
R
TCM809
V
CC
V
CC
V
CC
RESET
RESET
INPUT
GND
GND
PROCESSOR
VCC
RESET (RESET)
GND
TCM809xENB
TCM810xENB
1
2
3
*SOT-23B-3
NOTE: *SOT-23B-3 is equivalent to JEDEC (TO-236)
** () is for TCM810
TCM809/810-04 8/29/96
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