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DS1708TESA Datasheet

  • DS1708TESA

  • 3.3 and 5.0-Volt MicroMonitor(102.29 k)

  • 10頁

  • ETC

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DS1707/DS1708
3.3 and 5.0-Volt MicroMonitor
www.dalsemi.com
FEATURES
Holds microprocessor in check during power
transients
Automatically restarts microprocessor after
power failure
Monitors pushbutton for external override
Accurate 5%, 10% or 20% resets for 3.3V
systems and 5% or 10% resets for 5.0V
systems
Eliminates the need for discrete components
20% tolerance compatible with 3.0V systems
Pin compatible with the MAXIM
MAX707/MAX708 in 8-pin DIP, 8-pin SOIC
packages
8-pin DIP, 8-pin and
碌-SOP
SOIC and 8-pin
碌-SOP
packages available
Industrial temperature range -40擄C to +85擄C
PIN ASSIGNMENT
PBRST
V
CC
GND
IN
1
2
3
4
8
7
6
5
RST
RST
NC
NMI
8-Pin DIP (300-mil)
PBRST
V
CC
GND
IN
1
2
3
4
8
7
6
5
RST
RST
NC
NMI
8-Pin SOIC (150-mil)
RST
RST
PBRST
V
CC
1
2
3
4
8
7
6
5
NC
NMI
IN
GND
8-Pin
碌-SOP
(118-mil)
See Mech. Drawings Section
DS1707 and DS1708_R/S/T
PIN DESCRIPTION
PBRST
V
CC
GND
IN
NMI
NC
RST
RST
- Pushbutton Reset Input
- Power Supply
- Ground
- Input
- Non-maskable Interrupt
- No Connect
- Active Low Reset Output
- Active High Reset Output
DESCRIPTION
The DS1707/DS1708 3.3- or 5.0-Volt MicroMonitor monitors three vital conditions for a microprocessor:
power supply, voltage sense, and external override. A precision temperature-compensated reference and
comparator circuit monitor the status of V
CC
at the device and at an upstream point for maximum
protection. When the sense input detects an out-of-tolerance condition a non-maskable interrupt is
generated. As the voltage at the device degrades an internal power fail signal is generated which forces
the reset to an active state. When V
CC
returns to an in-tolerance condition, the reset signal is kept in the
active state for a minimum of 130 ms to allow the power supply and processor to stabilize.
1 of 10
071700

DS1708TESA 產(chǎn)品屬性

  • Lead (SnPb) Finish for COTSObsolescence Mitigation Program

  • 100

  • 集成電路 (IC)

  • PMIC - 監(jiān)控器

  • MicroMonitor™

  • 簡單復(fù)位/加電復(fù)位

  • 1

  • 推挽式，推挽式

  • 高有效/低有效

  • 最小為 130 ms

  • 3.08V

  • -40°C ~ 85°C

  • 表面貼裝

  • 8-SOIC（0.154"，3.90mm 寬）

  • 8-SOIC

  • 管件

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