STC708Z datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > STC708Z

Preview

STC708Z: DescriptionUP Supervisor Circuits; File Size55KB，7 Pages; ManufacturerETC1

Download Datasheet View All

STC708Z Overview

UP Supervisor Circuits

Preview

Download Datasheet

View All

Data Sheet

STC705-706/706P-707-708-708T/S/R-813L

P Supervisor Circuits

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Features

• Precision supply-voltage monitor

- 4.63V (STC706L/705, 813L, 708L/707)

- 4.38V (STC706M/706, 813M, 708M/708)

- 3.08V (STC706T, 813T, 708T)

- 2.93V (STC706S, 813S, 708S)

- 2.63V (STC706R, 813R/706P, 708R)

- 2.32V (STC706Z, 813Z, 708Z)

- 2.20V (STC706Y, 813Y, 708Y)

• 200ms reset pulse width

• Debounced TTL/CMOS-compatible manual-

reset input

• Independent watchdog timer 1.6sec time-out (not

available for STC707/708/708T/708S/R/Z/Y)

• Reset output signal:

- Active-low only (STC705/706/706T/S/R/Z/Y)

- Active-high only (STC813L/M/T/S/R/706P)

- Active-high and active-low (707/708/708T/S/R)

• Voltage monitor for power-fail or low battery warning

• Guaranteed RESET/RESET valid at V

= 1.2V

Introduction

The STC706X/813X/708X family microprocessor

(µP) supervisory circuits are targeted to improve

reliability and accuracy of power-supply circuitry in

µP systems. These devices reduce the complexity and

number of components required to monitor power-

supply and battery functions.

The main functions are:

1. Asserting reset output during power-µp, power-

down and brownout conditions for µP system;

2. Detecting power failure or low-battery conditions

with a 1.25V threshold detector;

3. Watchdog functions (not for STC708x).

Applications

• Power-supply circuitry in µP systems

STC

Ver1.0

Data Sheet

STC705-706/706P-707-708-708T/S/R-813L

P Supervisor Circuits

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Contents

Features ....................................................................................................................................................... 1

Block Diagram ............................................................................................................................................ 1

Introduction ................................................................................................................................................. 1

Pin Information ........................................................................................................................................... 4

Pin Configuration .............................................................................................................................. 4

Pin Description .................................................................................................................................. 4

Functional Description ................................................................................................................................ 5

Reset Output ...................................................................................................................................... 5

Watchdog Timer ................................................................................................................................ 5

Manual Reset ..................................................................................................................................... 5

Power-Fail Comparator ..................................................................................................................... 5

Function Reference Table .................................................................................................................. 6

Detailed Specifications ................................................................................................................................ 7

Absolute Maximum Ratings .............................................................................................................. 7

Recommended Operation Condition ................................................................................................. 7

DC Electrical Characteristics ............................................................................................................. 8

AC Electrical Characteristics ............................................................................................................. 9

Ordering Information ................................................................................................................................ 10

Mechanical Information ............................................................................................................................ 11

Notes ......................................................................................................................................................... 12

STC

Ver1.0

Recommended Resources

HT-2821 series (dual tone) circuit

24V power supply-6V output circuit using integrated block

TTL to CMOS interface circuit

Sequential dual timing control circuit

Constant voltage source using operational amplifier TAA861

Pyroelectric control automatic energy-saving lamp

SH69P42 OTP 4-bit MCU with SAR 8-bit AD converter: This e-book will briefly introduce the SH69P42 OTP 4-bit MCU with SAR8-bit AD converter...; rain PCB Design

Tool packages that may be used when porting uclinux to 44b0: Took some time to find it online.[[i] This post was last edited by Fan Xiaochuan on 2010-9-14 22:51[/i]]...; 范小川 Linux and Android

WINCE 5.0 Camera Driver (PXA270): Dear heroes: My development environment is PXA270+WINCE5.0, the camera is OV9650, and now I need to develop drivers and test applications. The driver source code in hand is for ADCM2650, and it seems ...; a2172703 Embedded System

How to use ADM1066 chip management?: I need to monitor +5V, -5V, +15V, -15V, +3.3V, +1.8V, where +1.8V is regulated by +3.3V, and the others are output by the switching power supply module, and the current of each channel is large, more ...; 蓝色心泪 Power technology

3.EV_HC32F460_ADC debugging: Introduction The HC32F460 series MCU integrates two ADC modules, ADC1 and ADC2 (the system block diagram is shown in Figure 2-1 ), mounted on the AHB-APB ( APB3 ) bus, and can be configured with 12 -b...; gao_hex Domestic Chip Exchange

STR710 startup problem: Hello, moderator. I plan to expand a 2M Norflash and a Sdram on the 144pin str710. I want to specify that this system does not run OS. I connect the chip selects of Norflash and Sdram to CSn.0 and CS....; jingdongbo stm32/stm8

Shortcut: L0 L1 L2 L3 L4 L5 L6 L7 L8 L9 LA LB LC LD LE LF LG LH LI LJ LK LL LM LN LO LP LQ LR LS LT LU LV LW LX LY LZ M0 M1 M2 M3 M4 M5 M6 M7 M8 M9 MA MB MC MD ME MF MG MH MI MJ MK ML MM MN MO MP MQ MR MS MT MU MV MW MX MY MZ N0 N1 N2 N3 N4 N5 N6 N7 N8 NA NB NC ND NE NF NG NH NI NJ NK NL NM NN NO NP NQ NR NS NT NU NV NX NZ O0 O1 O2 O3 OA OB OC OD OE OF OG OH OI OJ OK OL OM ON OP OQ OR OS OT OV OX OY OZ P0 P1 P2 P3 P4 P5 P6 P7 P8 P9 PA PB PC PD PE PF PG PH PI PJ PK PL PM PN PO PP PQ PR PS PT PU PV PW PX PY PZ Q1 Q2 Q3 Q4 Q5 Q6 Q8 Q9 QA QB QC QE QF QG QH QK QL QM QP QR QS QT QV QW QX QY R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 RA RB RC RD RE RF RG RH RI RJ RK RL RM RN RO RP RQ RR RS RT RU RV RW RX RY RZ

Popular Components