DS1706TESA+ Maxim Integrated Products, DS1706TESA+ Datasheet

IC MICROMONITOR 3.3V 5% 8-SOIC

DS1706TESA+

Manufacturer Part Number
DS1706TESA+
Description
IC MICROMONITOR 3.3V 5% 8-SOIC
Manufacturer
Maxim Integrated Products
Series
MicroMonitor™r
Type
Simple Reset/Power-On Resetr
Datasheet

Specifications of DS1706TESA+

Number Of Voltages Monitored
1
Output
Push-Pull, Totem Pole
Reset
Active Low
Reset Timeout
130 ms Minimum
Voltage - Threshold
3.08V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Monitored Voltage
3.3 V or 5 V
Undervoltage Threshold
3 V
Overvoltage Threshold
3.15 V
Manual Reset
Resettable
Watchdog
Yes
Battery Backup Switching
No
Power-up Reset Delay (typ)
285 ms
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1.2 V
Supply Current (typ)
60 uA
Mounting Style
SMD/SMT
Maximum Operating Temperature
+ 85 C
Chip Enable Signals
No
Minimum Operating Temperature
- 40 C
Output Type
Active Low or Push-Pull
Power Fail Detection
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
19-5212; Rev 4/10
FEATURES
 Halts and restarts an out-of-control
 Holds microprocessor in check during power
 Automatically restarts microprocessor after
 Monitors pushbutton for external override
 Accurate 5%, 10% or 20% resets for 3.3V
 Eliminates the need for discrete components
 3.3V 20% tolerance for use with 3.0V
 Pin-compatible with the MAXIM
 8-pin DIP, 8-pin SOIC and 8-pin -SOP
 Industrial temperature range -40C to +85C
DESCRIPTION
The DS1705/DS1706 3.3- or 5.0-Volt MicroMonitor monitors three vital conditions for a microprocessor:
power supply, software execution, and external override. A precision temperature compensated reference
and comparator circuit monitor the status of V
protection. When the sense input detects an out-of-tolerance condition, a non-maskable interrupt is
generated. As the voltage at the device degrades, an internal power fail signal is generated which forces
www.maxim-ic.com
microprocessor
transients
power failure
systems and 5% or 10% resets for 5.0V
systems
systems
MAX705/MAX706 in 8-pin DIP, 8-pin SOIC,
and -SOP
packages
CC
at the device and at an upstream point for maximum
1 of 12
PIN ASSIGNMENT
PIN DESCRIPTION
V
GND
IN
*RST
ST
PBRST
RST
WDS
NMI
3.3V and 5.0V MicroMonitor
CC
PBRST
PBRST
RST(*RST)
DS1705 and DS1706_R/S/T
(*DS1706L and DS1706P)
See Mech. Drawings Section on website
GND
GND
V
V
PBRST
IN
IN
CC
CC
- Pushbutton Reset Input
- Power Supply
- Ground
- Input
- Non-maskable Interrupt
- Strobe Input
- Active Low Reset Output
- Active High Reset Output
- Watchdog Status Output
WDS
8-Pin SOIC (150-mil)
V
8-Pin DIP (300 -mil)
(DS1706P and DS1706L only)
CC
8-Pin -SOP (118-mil)
1
2
3
4
1
2
3
4
1
2
3
4
DS1705/DS1706
8
7
6
5
8
7
6
5
8
7
6
5
ST
NMI
IN
GND
WDS
RST
ST
NMI
WDS
RST(*RST)
ST
NMI

Related parts for DS1706TESA+

DS1706TESA+ Summary of contents

Page 1

Rev 4/10 www.maxim-ic.com FEATURES  Halts and restarts an out-of-control microprocessor  Holds microprocessor in check during power transients  Automatically restarts microprocessor after power failure  Monitors pushbutton for external override  Accurate 5%, 10% or 20% resets ...

Page 2

When V active state for a minimum of 130 ms to allow the power supply and processor to stabilize. The second function the DS1705/DS1706 performs is pushbutton reset control. The DS1705/DS1706 debounces the pushbutton ...

Page 3

Watchdog Timer The watchdog timer function forces second time-out period. Time-out of the watchdog starts when to-low transition occurs on the time out again. If the watchdog timer is allowed to time out, the minimum of 130 ms. The ST ...

Page 4

PUSH-BUTTON RESET CONTROLLED BY TIMING DIAGRAM: PUSHBUTTON RESET Figure 4 NON-MASKABLE INTERRUPT CIRCUIT EXAMPLE Figure 5 V SENSE Example: Therefore: NMI R1 1. 4.50V at the trip point SENSE ...

Page 5

WATCHDOG TIMER Figure 6 TIMING DIAGRAM: STROBE INPUT Figure 7 TIMING DIAGRAM: NON-MASKABLE INTERRUPT Figure ...

Page 6

TIMING DIAGRAM: POWER-DOWN Figure ...

Page 7

TIMING DIAGRAM: POWER-UP Figure ...

Page 8

ABSOLUTE MAXIMUM RATINGS Voltage Range on V Pin Relative to Ground CC Voltage Range on I/O Relative to Ground* Operating Temperature Range Storage Temperature Range Lead Temperature (soldering, 10s) Soldering Temperature (reflow) Lead(Pb)-free Containing lead(Pb) This is a stress rating ...

Page 9

AC ELECTRICAL CHARACTERISTICS PARAMETER = V PBRST IL Reset Active Time Pulse Width ST V Detect to RST and RST CC V Slew Rate CC V Detect to RST and RST CC V Slew Rate CC Stable Low to RST ...

Page 10

PART MARKING CODES 8-pin DIP (300 MIL) 8-pin SOIC (150 MIL) 8-pin µSOP (118 MIL) CODE AB Device type and tolerance yww or yyww Date Code. Identifies the year and work week the device was assembled. rv Die Revision ###xx ...

Page 11

ORDERING INFORMATION PART TEMP RANGE -40°C to +85°C DS1705EPA DS1705ESA -40°C to +85°C DS1705EUA -40°C to +85°C -40°C to +85°C DS1706EPA DS1706ESA -40°C to +85°C DS1706EUA -40°C to +85°C DS1706LEPA -40°C to +85°C DS1706LESA -40°C to +85°C DS1706LEUA -40°C to ...

Page 12

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time Maxim is a registered trademark of Maxim Integrated Products, Inc. The Dallas logo is a registered trademark of Maxim Integrated Products, Inc. DESCRIPTION © ...

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