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參數(shù)資料
| 型號(hào)： | STM1404CRMDQ6F |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, QCC16 |
| 封裝： | 3 X 3 MM, ROHS COMPLIANT, QFN-16 |
| 文件頁數(shù)： | 33/35頁 |
| 文件大?。?/td> | 366K |
| 代理商： | STM1404CRMDQ6F |
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STM1404
Description
Figure 1.
Logic diagram
1.
VREF only for STM1404A; VTPU for STM1404B/C.
2.
Normal mode: low when VOUT is internally switched to VCC and High when VOUT is internally switched to
battery.
3.
SAL, RST, PFO, and BLD are open drain.
Note:
See Section 2: Pin descriptions on page 11 for details.
Table 2.
Signal names
Vccsw(1)
1.
Normal mode: low when VOUT is internally switched to VCC and high when VOUT is internally switched to
battery.
VCC switch output
MR
Manual (push-button) reset input
PFI
Power-fail input
TP1 - TP4
Independent physical tamper detect pins 1 through 4
VOUT
Supply voltage output
RST(2)
2.
SAL, RST, PFO, and BLD are open drain.
Active-low reset output
PFO(2)
Power-fail output
SAL(2)
Security alarm output
BLD(2)
Battery low voltage detect
VREF
(3)
3.
VREF only for STM1404A; VTPU for STM1404B/C.
1.237 V reference voltage
VTPU
(3)
Tamper pull-up (VCC or VBAT)
VBAT
Backup supply voltage
VCC
Supply voltage
VSS
Ground
AI09682a
VCC
VBAT
STM1404
VSS
VOUT
VREF
or
VTPU
(1)
VCCSW
(2)
MR
SAL(3)
BLD(3)
PFI
TP1 (NH)
TP2
(NL)
TP3
(NH)
TP4
(NL)
PFO(3)
RST(3)
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