TPS3820xx, TPS3823xx, TPS3824xx, TPS3825xx, TPS3828xx

PROCESSOR SUPERVISORY CIRCUITS

SLVS165E – APRIL 1998 – REVISED DECEMBER 2002

1

POST OFFICE BOX 655303

features

Delay Time of 200 ms (TPS3823/4/5/8)

or 25 ms (TPS3820)

(TPS3820/3/4/5), Active-High (TPS3824) and

Open-Drain (TPS3828)

2.5 V, 3 V, 3.3 V, 5 V

applications

or Microprocessors

description

The TPS382x family of supervisors provides

circuit

initialization

and

timing

supervision,

primarily for DSP and processor-based systems.

During power-on, RESET is asserted when

Thereafter, the supply voltage supervisor moni-

An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Copyright

 2002, Texas Instruments Incorporated

This document contains information on products in more than one phase

of development. The status of each device is indicated on the page(s)

specifying its electrical characteristics.

3

2

4

5

TPS3820, TPS3823, TPS3828 . . . DBV PACKAGE

(TOP VIEW)

1

RESET

GND

MR

VDD

WDI

3

2

4

5

TPS3825 . . . DBV PACKAGE

(TOP VIEW)

1

RESET

GND

RESET

VDD

MR

3

2

4

5

TPS3824 . . . DBV PACKAGE

(TOP VIEW)

1

RESET

GND

RESET

VDD

WDI

RESET

MR

WDI

100 nF

VDD

GND

TPS3823-33

VDD

RESET

I/O

GND

MSP430C325

3.3 V

typical application