MITSUMI

IC for CMOS System Reset PST35XX, 36XX

IC for CMOS System Reset

Monolithic IC PST35XX, 36XX Series

Outline

This system reset IC, developed using the CMOS process, has a built-in delay function. Ultra-low

consumption current of 1.0µA (typ.). has been achieved through use of the CMOS process. Also, detection

voltage is high-precision detection of ±2%. The small package MLF-4 (1.1 1.4 0.6mm) is used for space

saving.

Features

1. Ultra-low current consumption

2. High-precision detection voltage

±2%

3. Operating range

0.7 ~ 10V

4. Wide operating temperature range

-30 ~ +85°C

5. Detection voltage

0.9 ~ 6.0V (0.1V step)

6. Delay time can be easily set with an external component (capacitor).

Packages

SOT-25A (PST35XXNR, PST36XXNR)

SC-82ABA, SC-82ABB (PST36XXUR, PST36XXUR)

SSON-4

Applications

1. Reset circuits for microcomputers, CPUs and MPUs

2. Reset circuits for logic circuits

3. Battery voltage check circuits

4. Back-up power supply switching circuits

5. Level detection circuits

6. Delay time can be easily set with an external component (capacitor).

Pin Assignment

13

5

2

4

SOT-25A

(TOP VIEW)

12

43

SC-82ABA

SC-82ABB

(TOP VIEW)

1

OUT

2

3

GND

4

NC

5

Cd

1

GND

2

3

Cd

4

OUT

12

43

SSON-4

(TOP VIEW)

1

GND

2

OUT

3

Cd

4

March 21, 2004