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参数资料
| 型号： | DS1231SN-20 |
| 厂商： | DALLAS SEMICONDUCTOR |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封装： | 0.300 INCH, SOIC-16 |
| 文件页数： | 8/9页 |
| 文件大小： | 70K |
| 代理商： | DS1231SN-20 |
DS1231/S
022698 8/9
AC ELECTRICAL CHARACTERISTICS
(0
°C to 70°C; VCC = 5V + 10%)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
VTP to NMI Delay
tIPD
1.1
s
VCC Slew Rate 4.75-4.25V
tF
300
s
VCC Detect to RST and RST
tRPD
100
ns
VCC Detect to NMI
tIPU
200
s
4
VCC Detect to RST and RST
tRPU
150
500
1000
ms
4
VCC Slew Rate 4.25-4.75V
tR
0
ns
NOTES:
1. All voltages referenced to ground.
2. VCC = +5.0 volts with outputs open.
3. Measured with outputs open.
4. tR = 5 s.
5. RST is an open drain output and requires a pull–up resister.
6. RST remains within 0.5V of VCC on power–down until VCC drops below 2.0V. RST remains within 0.5V of
GND on power–down until VCC drops below 2.0V.
TIMING DIAGRAM: POWER-UP
VTP
tR
MODE=VCC
tRPU
VCC
NMI
INPUT PIN 1
MODE=GND
4.5V
4.25V
4.75V
tIPU
VOH
VOL
RST
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