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参数资料
| 型号： | SP708TEN-L/TR |
| 厂商： | Exar Corporation |
| 文件页数： | 5/16页 |
| 文件大小： | 0K |
| 描述： | IC MPU SUPERVISORY CIRCUIT 8SOIC |
| 标准包装： | 2,500 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 复位： | 高有效/低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 3.08V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 带卷 (TR) |
S P 7 0 6 R / S / T - S P 7 0 8 R / S / T
3 . 0 V / 3 . 3 V L o w P o w e r M i c r o p r o c e s s o r S u p e r v i s o r y
C i r c u i t s
PIN DESCRIPTION
Name
Pin Number
SP706R/S/T SP708R/S/T
Description
SOIC
MSOP
SOIC
MSOP
Manual Reset
MR
V CC
GND
PFI
PFO
1
2
3
4
5
3
4
5
6
7
1
2
3
4
5
3
4
5
6
7
This input triggers a reset pulse when pulled below 0.8V. This active
LOW input has an internal 70μA pull-up current. It can be driven
from a TTL or CMOS logic line or shorted to ground with a switch.
Voltage Input
Ground reference for all signals
Power-Fail Input
When this voltage monitor input is less than 1.25V, PFO goes LOW.
Connect PFI to ground or V CC when not in use.
Power-Fail Output
This output is LOW until PFI is less then 1.25V
Watchdog Input
If this input remains HIGH or LOW for 1.6s, the internal watchdog
WDI
6
8
-
-
timer times out and WDO goes LOW. Floating WDI or connecting WDI
to a high-impedance tri-state buffer disables the watchdog feature.
The internal watchdog timer clears whenever RESET is asserted, WDI
is tri-stated, or whenever WDI sees a rising or falling edge.
N.C.
-
-
6
8
No Connect
Active-LOW RESET Output
This output pulses LOW for 200ms when triggered and stays LOW
RESET
7
1
7
1
whenever V CC is below the reset threshold. It remains LOW for 200ms
after V cc rises above the reset threshold or MR goes from LOW to
HIGH. A watchdog timeout will not trigger RESET unless WDO is
connected to MR .
Watchdog Output
This output pulls LOW when the internal watchdog timer finishes its
WDO
8
2
-
-
1.6s count and does not go HIGH again until the watchdog is cleared.
WDO also goes LOW during low-line conditions. Whenever V CC is
below the reset threshold, WDO stays LOW. However, unlike RESET ,
WDO does not have a minimum pulse width. As soon as V CC is above
the reset threshold, WDO goes HIGH with no delay.
Active-HIGH RESET Output
RESET
-
-
8
2
This output is the complement of RESET . Whenever RESET is HIGH,
RESET is LOW and vice-versa. Note that the SP708R/S/T has a reset
output only.
ORDERING INFORMATION
Part Number
Temperature
Range
Marking
Package
Packing
Quantity
Note 1
Note 2
SP706RCN-L
SP706RCN-L/TR
SP706RCU-L
SP706RCU-L/TR
0°C ≤ T A ≤ +70°C
0°C ≤ T A ≤ +70°C
0°C ≤ T A ≤ +70°C
0°C ≤ T A ≤ +70°C
SP706RC
YYWWL
X
706R
CXXX
YWW
8-pin NSOIC Bulk Lead
8-pin NSOIC 2.5K/Tape & Reel Lead
8-pin MSOP Bulk Lead
8-pin MSOP 2.5K/Tape & Reel Lead
Free
Free
Free
Free
SP706REN-L
SP706REN-L/TR
SP706REU-L
SP706REU-L/TR
-40°C ≤ T A ≤ +85°C
-40°C ≤ T A ≤ +85°C
-40°C ≤ T A ≤ +85°C
-40°C ≤ T A ≤ +85°C
SP706RE
YYWWL
X
706R
EXXX
YWW
8-pin NSOIC Bulk Lead Free
8-pin NSOIC 2.5K/Tape & Reel Lead Free
8-pin MSOP Bulk Lead Free
8-pin MSOP 2.5K/Tape & Reel Lead Free
SP706SCN-L
SP706SCN-L/TR
SP706SCU-L
SP706SCU-L/TR
0°C ≤ T A ≤ +70°C
0°C ≤ T A ≤ +70°C
0°C ≤ T A ≤ +70°C
0°C ≤ T A ≤ +70°C
SP706SC
YYWWL
X
706S
CXXX
YWW
8-pin NSOIC Bulk Lead
8-pin NSOIC 2.5K/Tape & Reel Lead
8-pin MSOP Bulk Lead
8-pin MSOP 2.5K/Tape & Reel Lead
Free
Free
Free
Free
? 2010 Exar Corporation
5/16
Rev. 2.0.0
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