STM6720 datasheet(1/25 Pages) STMICROELECTRONICS

Il numero della parte	STM6720

Spiegazioni elettronici	Dual/Triple Ultra-Low Voltage Supervisors with Push-Button Reset (with Delay Option)

PDF	25 Pages

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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October 2005

STM6717/6718/6719/6720

STM6777/6778/6779*/6780*

Dual/Triple Ultra-Low Voltage Supervisors

with Push-Button Reset (with Delay Option)

Rev 3.0

* Contact local ST sales office for availability.

FEATURES SUMMARY

■

PRIMARY SUPPLY (VCC1) MONITOR.

FIXED (FACTORY-PROGRAMMED) RESET

THRESHOLDS: 4.63V TO 1.58V

■

SECONDARY SUPPLY (VCC2) MONITOR

(STM6717/18/19/20/77/78).

FIXED (FACTORY-PROGRAMMED) RESET

THRESHOLDS: 3.08V TO 0.79V

■

TERTIARY SUPPLY MONITOR (USING

EXTERNALLY ADJUSTABLE RSTIN):

0.626V INTERNAL REFERENCE

■

RST OUTPUTS (PUSH-PULL OR OPEN

DRAIN); STATE GUARANTEED IF VCC1 OR

VCC2 ≥ 0.8V

■

RESET DELAY TIME (trec) ON POWER-UP:

–210ms (typ)

■

MANUAL RESET INPUT (MR)

■

OPTIONAL DELAYED MANUAL RESET

INPUT (MRC) WITH EXTERNAL

CAPACITOR (STM6777/78/79/80)

■

LOW SUPPLY CURRENT - 11µA (TYP),

VCC1 = VCC2 = 3.6V

■

OPERATING TEMPERATURE:

–40°C to 85°C (Industrial Grade)

Figure 1. Packages

Table 1. Device Options

SOT23-5 (WY)

SOT23-6 (WB)

Part

Number

Monitored Voltages

Manual Reset

Input (MR)

Delayed MR

Pin (MRC)

Reset Output (RST)

Package

VCC1

VCC2

RSTIN

Active-Low

(Push-Pull)

Active-Low

(Open Drain)

STM6717

✔✔

✔

WY

STM6718

✔✔

✔

WY

STM6719

✔✔

✔

WB

STM6720

✔✔

✔

WB

STM6777

✔✔

✔

WB

STM6778

✔✔

✔

WB

STM6779*

✔✔

✔

WB

STM6780*

✔✔

✔

WB

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