UCC3946D - 

制造商：

TEXAS INSTRUMENTS TEXAS INSTRUMENTS

制造商产品编号：

UCC3946D

仓库库存编号：

2492587

技术数据表：

(EN)

The UCC3946D is a Microprocessor Supervisor with active-low push-pull output and manual reset. During power-up, the device asserts a reset signal RES with VDD as low as 1V. 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 de-asserted, any drops below the threshold voltage need to be of certain time duration and voltage magnitude to generate a reset signal. 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.

• Fully programmable reset threshold
• Fully programmable reset period
• Fully programmable watchdog period
• Input voltage down to 2V
• Reset valid down to 1V
• 2% Accurate reset threshold
• 18μA Maximum input current
• Green product and no Sb/Br