STM6778

Active
Design Win

Dual/triple ultra-low voltage supervisors with push-button reset (with delay option)

Download datasheet Order Direct
Overview
Sample & Buy
Solutions
Documentation
CAD Resources
Tools & Software
Quality & Reliability
Get Started
Partner products
Sales Briefcase

Product overview

Description

The STM6717/18/19/20 and STM6777/78/79/80 supervisors are a family of low-voltage/low-supply current processor (micro or DSP) supervisors, designed to monitor two (or three) system power supply voltages. They are targeted at applications such as set-top boxes (STBs), portable, battery-powered systems, networking, and communication systems. All device options have a push-button-type manual reset input (MR). The STM6777/78/79/80 also includes an option which enables the user to delay the start of the manual reset process from 6 μs (MRC pin left open) or more with external capacitor. The delay is implemented by connecting the appropriately sized capacitor between the MRC pin and VSS(typical 4 s delay with a 3.3 μF capacitor).
Two of the three supplies monitored (VCC1and VCC2) have fixed (customer-selectable, factory-trimmed) thresholds (VRST1and VRST2). The third voltage is monitored using an externally adjustable RSTIN threshold (0.626 V internal reference).
If any of the three monitored voltages drop below its factory-trimmed or adjustable thresholds, or if MRis asserted to logic low, a RSTis asserted (driven low). Once asserted, RSTis maintained at low for a minimum delay period (trec) after ALL supplies rise above their respective thresholds and MRreturns to high. These devices are guaranteed to be in the correct reset output logic state when VCC1and/or VCC2is greater than 0.8 V.
These devices are available in standard 5-pin or 6-pin SOT23 packages.
  • All features

    • Primary supply (VCC1) monitor. Fixed (factory-programmed) reset thresholds: 4.63 V to 1.58 V
    • Secondary supply (VCC2) monitor (STM6717/18/19/20/77/78)
    • Fixed (factory-programmed) reset thresholds: 3.08 V to 0.79 V
    • Tertiary supply monitor (using externally adjustable RSTIN): 0.626 V internal reference
    • RSToutputs (push-pull or open drain); state guaranteed if VCC1or VCC2≥ 0.8 V
    • Reset delay time (trec) on power-up: 13.2 ms, 210 ms, 900 ms (typ)
    • Manual reset input (MR)
    • Optional delayed manual reset input (MRC) with external capacitor (STM6777/78/79/80)
    • Low supply current - 11 μA (typ), VCC1= VCC2 = 3.6 V
    • Operating temperature: –40 °C to 85 °C (industrial grade)

Circuit Diagram

EDA Symbols, Footprints and 3D Models

STMicroelectronics - STM6778

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STM6778SFWB6F
Active
SOT23-6L Industrial Ecopack3
STM6778SVWB6F
Active
SOT23-6L Industrial Ecopack3
STM6778SYWB6F
Active
SOT23-6L Industrial Ecopack3
STM6778TGWB6F
Active
SOT23-6L Industrial Ecopack3
STM6778TWWB6F
Active
SOT23-6L Industrial Ecopack3
STM6778TZWB6F
Active
SOT23-6L Industrial Ecopack3

STM6778SFWB6F

Package:

SOT23-6L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-6L

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM6778SVWB6F

Package:

SOT23-6L

Material Declaration**:

Marketing Status

Active

Package

SOT23-6L

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM6778SYWB6F

Package:

SOT23-6L

Material Declaration**:

Marketing Status

Active

Package

SOT23-6L

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM6778TGWB6F

Package:

SOT23-6L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-6L

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM6778TWWB6F

Package:

SOT23-6L

Material Declaration**:

Marketing Status

Active

Package

SOT23-6L

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STM6778TZWB6F

Package:

SOT23-6L

Material Declaration**:

Marketing Status

Active

Package

SOT23-6L

Grade

Industrial

RoHS Compliance Grade

Ecopack3

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Swipe or click the button to explore more details Don't show this again
Part Number
Order from distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Voltage Reset 1 (V) (typ)
Budgetary Price (US$)*/Qty
Voltage Reset 2 (V) (typ)
Unit Price (US$)
Country of Origin
min
max
STM6778TZWB6F No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel SOT23-6L -40 85 3.075

2.313

0.6402

MALAYSIA

STM6778TGWB6F Available at 1 distributors

Distributor availability ofSTM6778TGWB6F

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 1845 1 Buy from Distributor

Distributor reported inventory date: 2022-08-16

Distributor Name

MOUSER

Stock

1845

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-08-16

Active
EAR99 NEC Tape and Reel SOT23-6L -40 85 3.075

1.11

0.6402

MALAYSIA

STM6778TWWB6F No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel SOT23-6L -40 85 3.075

1.665

0.6402

MALAYSIA

STM6778SVWB6F No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel SOT23-6L -40 85 2.925

1.575

0.6402

MALAYSIA

STM6778SFWB6F No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel SOT23-6L -40 85 2.925

1.05

0.6402

MALAYSIA

STM6778SYWB6F No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel SOT23-6L -40 85 2.925

2.188

0.6402

MALAYSIA

STM6778TZWB6F Active

Package:
SOT23-6L
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STM6778TZWB6F

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Voltage Reset 1 (V) (typ):

3.075

Voltage Reset 2 (V) (typ):

2.313

Country of Origin:

MALAYSIA

No availability of distributors reported, please contact our sales office

STM6778TGWB6F Active

Package:
SOT23-6L
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STM6778TGWB6F

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Voltage Reset 1 (V) (typ):

3.075

Voltage Reset 2 (V) (typ):

1.11

Country of Origin:

MALAYSIA

Distributor availability ofSTM6778TGWB6F

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 1845 1 Buy from Distributor

Distributor reported inventory date: 2022-08-16

Distributor Name

MOUSER

Stock

1845

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-08-16

STM6778TWWB6F Active

Package:
SOT23-6L
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STM6778TWWB6F

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Voltage Reset 1 (V) (typ):

3.075

Voltage Reset 2 (V) (typ):

1.665

Country of Origin:

MALAYSIA

No availability of distributors reported, please contact our sales office

STM6778SVWB6F Active

Package:
SOT23-6L
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STM6778SVWB6F

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Voltage Reset 1 (V) (typ):

2.925

Voltage Reset 2 (V) (typ):

1.575

Country of Origin:

MALAYSIA

No availability of distributors reported, please contact our sales office

STM6778SFWB6F Active

Package:
SOT23-6L
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STM6778SFWB6F

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Voltage Reset 1 (V) (typ):

2.925

Voltage Reset 2 (V) (typ):

1.05

Country of Origin:

MALAYSIA

No availability of distributors reported, please contact our sales office

STM6778SYWB6F Active

Package:
SOT23-6L
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STM6778SYWB6F

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Voltage Reset 1 (V) (typ):

2.925

Voltage Reset 2 (V) (typ):

2.188

Country of Origin:

MALAYSIA

No availability of distributors reported, please contact our sales office
Swipe or click the button to explore more details Don't show this again

(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors