EEWORLDEEWORLDEEWORLD

Part Number

Search

LTC6993

Description
TimerBlox: Long Timer, Low Frequency Oscillator
File Size358KB,28 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Compare View All

LTC6993 Overview

TimerBlox: Long Timer, Low Frequency Oscillator

FeaTures
n
n
n
n
n
n
n
LTC6995-1/LTC6995-2
TimerBlox: Long Timer, Low
Frequency Oscillator
DescripTion
The
LTC
®
6995
is a silicon oscillator with a programmable
period range of 1.024ms to 9.54 hours (29.1µHz to 977Hz),
specifically intended for long duration timing events. The
LTC6995 is part of the TimerBlox
®
family of versatile
silicon timing devices.
A single resistor, R
SET
, programs the LTC6995’s internal
master oscillator frequency. The output clock period
is determined by this master oscillator and an internal
frequency divider, N
DIV
, programmable to eight settings
from 1 to 2
21
.
t
OUT
=
N
DIV
• R
SET
• 1.024ms, N
DIV
=
1,8,64,...,2
21
50kΩ
n
n
n
n
Period Range: 1ms to 9.5 Hours
Timing Reset by Power-On or Reset Input
Configured with 1 to 3 Resistors
<1.5% Maximum Frequency Error
Programmable Output Polarity
2.25V to 5.5V Single Supply Operation
55µA to 80µA Supply Current
(2ms to 9.5hr Clock Period)
500µs Start-Up Time
CMOS Output Driver Sources/Sinks 20mA
–55°C to 125°C Operating Temperature Range
Available in Low Profile (1mm) SOT-23 (ThinSOT™)
and 2mm
×
3mm DFN Packages
applicaTions
n
n
n
n
n
n
Power-On Reset Timer
Long Time One Shot
“Heartbeat” Timers
Watchdog Timers
Periodic “Wake-Up” Call
High Vibration, High Acceleration Environments
When oscillating, the LTC6995 generates a 50% duty
cycle square wave output. A reset function is provided
to stop the master oscillator and clear internal dividers.
Removing reset initiates a full output clock cycle which
is useful for programmable power on reset and watchdog
timer applications.
The LTC6995 has two versions of reset functionality. The
reset input is active high for the LTC6995-1 and active low
for the LTC6995-2. The polarity of the output when reset
is selectable for both versions.
OUTPUT (OSCILLATOR START STATE)
RST/RST
0
1
0
1
POLARITY
0
0
1
1
LTC6995-1
Oscillating (Low)
0 (Reset)
Oscillating (High)
1 (Reset)
LTC6995-2
0 (Reset)
Oscillating (Low)
1 (Reset)
Oscillating (High)
L,
LT, LTC, LTM, Linear Technology, TimerBlox and the Linear logo are registered trademarks
and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
Typical applicaTion
RST
GND
SET
OUT
V
+
LTC6995-1
Active Low Power-On Reset Timer
V
+
V
+
1M
0.1µF
OUT
5 SECONDS
1/2 t
OUT
POWER-ON RESET
(1ms TO 4.8 HOURS)
TIMER STOPPED
118k
DIV
392k
699512 TA01
699512f
For more information
www.linear.com/6995
1

LTC6993 Related Products

LTC6993 LTC6992 LTC6994 LTC6995-1
Description TimerBlox: Long Timer, Low Frequency Oscillator TimerBlox: Long Timer, Low Frequency Oscillator TimerBlox: Long Timer, Low Frequency Oscillator TimerBlox: Long Timer, Low Frequency Oscillator
Exploring the mystery of China's IC design development (VI): How to achieve technological innovation
How to achieve technological innovationTechnological innovation is a whole process of hierarchical economic activities with the basic characteristics of starting from creative technological conception...
天天谈芯 Embedded System
Compilation error, I don't know what the problem is
LINK : fatal error LNK1104: cannot open file 'MFCCE400.lib' I have not used this library...
limingjing1986 Embedded System
Recommend a CAD software——nanoCAD
I always like software with smaller size, because I am too busy. I often have to rebuild the system and reinstall the software. The most painful thing is those guys whose size is larger than the syste...
huayuliang PCB Design
Printed circuit diagram recognition method
Printed circuit diagrams are closely related to repairs, and their importance to repairs is second only to the electrical schematic diagram of the entire machine, so printed circuit diagrams are mainl...
lhy FPGA/CPLD
Simplify application design with IoT development kits
Engineers who choose to design a wireless IoT application from scratch will quickly realize that the task is difficult. First, building an IoT network system from scratch requires knowledge of many di...
fish001 Wireless Connectivity
SDHC card initialization process, no data can be read.
My 51 development board, SPI reads and writes SD card, and there is a problem when reading the SD card sector data. No data can be read at all, that is, the data is all 0. My initialization process is...
wuxinyi MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1192  1051  426  1033  412  24  22  9  21  37 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号