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PRELIMINARY DATA

December 2004

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

STM6321/6322

STM6821/6822/6823/6824/6825

5-Pin Supervisor with

Watchdog Timer and Push-button Reset

FEATURES SUMMARY

■

3V, OR 2.5V POWER SUPPLIES

–

STM6xxxL

–

STM6xxxM

–

STM6xxxT

–

STM6xxxS

–

STM6xxxR

–

STM6xxxZ

■

RST OUTPUTS (ACTIVE-LOW, PUSH-PULL

OR OPEN DRAIN)

■

RST OUTPUTS (ACTIVE-HIGH, PUSH-

PULL)

■

■

WATCHDOG TIMER - 1.6sec (TYP)

■

MANUAL RESET INPUT (MR)

■

LOW SUPPLY CURRENT - 3µA (TYP)

■

GUARANTEED RST (RST) ASSERTION

■

OPERATING TEMPERATURE:

–40°C to 85°C (Industrial Grade)

Figure 1. Package

Table 1. Device Options

SOT23-5 (WY)

Part Number

Watchdog Input

Manual Reset

Input

Reset Output

Active-Low

(Push-pull)

Active-High

(Push-pull)

Active-Low

(Open Drain)

STM6321

✔✔

✔

STM6322

✔✔

✔

STM6821

✔✔

✔

STM6822

✔✔

✔

STM6823

✔✔

✔

STM6824

✔✔

✔

STM6825

✔✔

✔