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參數(shù)資料
| 型號： | TC71EPA |
| 廠商： | TelCom Semiconductor, Inc. |
| 英文描述： | MICROMASTER - SYSTEM SUPERVISOR WITH POWER SUPPLY MONITOR, WATCHDOG AND BATTERY BACKUP |
| 中文描述： | MICROMASTER -系統(tǒng)與電源監(jiān)視器，看門狗和電池備份督導員 |
| 文件頁數(shù)： | 6/7頁 |
| 文件大小： | 89K |
| 代理商： | TC71EPA |
5-12
TELCOM SEMICONDUCTOR, INC.
TC70
TC71
Figure 4. RS Override Reset
Figure 3. Watchdog Strobe
Figure 2. TC71 Typical Application
VCC
CE
WDD
VCCO
PF
TC71
TC55RP
REGULATOR
FILTER CAP
ADDRESS
NMI
CMOS
RAM
I/O
RESET
RESET
PROCESSOR
3V L
I
R4
R3
VBATT
VCC
VCC
VCC
TDI
GND
CE
TDO
AC IN
RS
ADDRESS
DECODER
RECTIFIER
R4
13K
R3
10K
V
STL
(MAX)
t
ST
t
TD
RS
Note: t
is the maximum elapsed time between strobes which
will keep the watchdog timer from forcing RS LOW.
(A STROBEis defined as a high-to-low transition from V
STH
to V
STL
)
.
V
STH
(MIN)
V
STL
(MIN)
PB CLOSED
PB OPEN
RS
V
IH
t
RST
V
IL
tPBH
MICROMASTER – SYSTEM SUPERVISOR
WITH POWER SUPPLY MONITOR, WATCHDOG
AND BATTERY BACKUP
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