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Clock Fanout Buffer 2-OUT 1-IN 1:2
| Manufacturer : | Analog Devices, Inc |
|---|---|
| Package/Case : | DFN-12 |
| Product Categories : | Clock Drivers, PLLs |
| Datasheet: | LTC6957IDD-2#PBF Datasheet (PDF) |
| RoHs Status: | Pb-free Halide free |
| In-stock: | 9000 |
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LTC6957IDD-2#PBF Product Details
The LTC690 family provides complete power supply monitoring and battery control functions for microprocessor reset, battery back up, CMOS RAM write protection, power failure warning and watchdog timing. A precise internal voltage reference and comparator circuit monitor the power supply line. When an out-of-tolerance condition occurs, the reset outputs are forced to active states and the chip enable output unconditionally write-protects external memory. In addition, the RESET output is guaranteed to remain logic low even with VCC as low as 1V.
The LTC690 family powers the active CMOS RAMs with a charge pumped NMOS power switch to achieve low dropout and low supply current. When primary power is lost, auxiliary power, connected to the battery input pin, powers the RAMs in standby through an efficient PMOS switch.
For an early warning of impending power failure, the LTC690 family provides an internal comparator with a user-defined threshold. An internal watchdog timer is also available, which forces the reset pins to active states when the watchdog input is not toggled prior to a preset timeout period.
Feature
- Guaranteed Reset Assertion at VCC = 1V
- 1.5mA Maximum Supply Current
- Fast (35ns Max) Onboard Gating of RAM Chip Enable Signals
- SO-8 and S16 Packaging
- 4.65V Precision Voltage Monitor
- Power OK/Reset Time Delay: 50ms, 200ms or Adjustable
- Minimum External Component Count
- 1μA Maximum Standby Current
- Voltage Monitor for Power-Fail or Low Battery Warning
- Thermal Limiting
- Performance Specified Over Temperature
- Superior Upgrade for MAX690 Family
Applications
- Critical μP Power Monitoring
- Intelligent Instruments
- Battery-Powered Computers and Controllers
- Automotive Systems
(Picture: Pinout)
(Picture: Diagram)
Technical Parameters
- Type
- Fanout Buffer (Distribution)
- Number of Circuits
- 1
- Ratio Input:Output
- 1:2
- Differential Input:Output
- Yes/Yes
- Input
- CML, CMOS, LVDS, LVPECL
- Output
- LVDS
- Frequency Max
- 300MHz
- Voltage Supply
- 3.15V ~ 3.45V
- Operating Temperature
- -40??C ~ 85??C
- Mounting Type
- Surface Mount
- Package / Case
- 12-WFDFN Exposed Pad
- Supplier Device Package
- 12-DFN (3x3)
LTC6957IDD-2#PBF Datasheet
-
LTC695 Technical Documentation/Data sheet
LTC6957IDD-2#PBF Related Products
Ratings and Reviews (1)
- 5 / 5
- 5 Stars 100%
- 4 Stars 0%
- 3 Stars 0%
- 2 Stars 0%
- 1 Stars 0%
-
**icar***2016-01-31
everything well
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