Automotive Catalog Microprocessor Supervisor With Watchdog Timer

The UCCx946 is designed to provide accurate Microprocessor supervision, including reset and watchdog functions. During power up, the device asserts a reset signal RES with VDD as low as 1 V. The reset signal remains asserted until the VDD voltage rises and remains above the reset threshold for the reset period. Both reset threshold and reset period are programmable by the user.
The UCCx946 is also resistant to glitches on the VDD line. Once RES has been deasserted, any drops below the threshold voltage need to be of certain time duration and voltage magnitude to generate a reset signal. These values are shown in Figure 1. An I/O line of the Microprocessor may be tied to the watchdog input (WDI) for watchdog functions. If the I/O line is not toggled within a set watchdog period, programmable by the user, WDO is asserted. The watchdog function is disabled during reset conditions.
The UCC2946-Q1 is available in 8-pin TSSOP(PW) package to optimize board space.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
UCC2946TPWRQ1 Texas Instruments Automotive 2.1V to 5.5V Microprocessor Supervisor with Watchdog Timer 8-TSSOP -40 to 105
UCC2946PWTR Texas Instruments Microprocessor Supervisor with Watchdog Timer 8-TSSOP -40 to 85
UCC2946PWTRG4 Texas Instruments Microprocessor Supervisor with Watchdog Timer 8-TSSOP -40 to 85
UCC2946DG4 Texas Instruments Microprocessor Supervisor with Watchdog Timer 8-SOIC -40 to 85
UCC2946D Texas Instruments Microprocessor Supervisor with Watchdog Timer 8-SOIC -40 to 85
UCC2946DTR Texas Instruments Microprocessor Supervisor with Watchdog Timer 8-SOIC -40 to 85
UCC2946PW Texas Instruments Microprocessor Supervisor with Watchdog Timer 8-TSSOP -40 to 85
UCC2946DTRG4 Texas Instruments Microprocessor Supervisor with Watchdog Timer 8-SOIC -40 to 85
UCC2946PWG4 Texas Instruments Microprocessor Supervisor with Watchdog Timer 8-TSSOP -40 to 85
UCC2946-Q1 's PackagesUCC2946-Q1 's pdf datasheet
UCC2946TPWRQ1 TSSOP




UCC2946-Q1 Pinout, Pinouts
UCC2946-Q1 pinout,Pin out
This is one package pinout of UCC2946-Q1,If you need more pinouts please download UCC2946-Q1's pdf datasheet.

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