900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




  ON Semiconductor Electronic Components Datasheet  

N84C162 Datasheet

Supervisory Circuits

No Preview Available !

N84C161, N84C162
Product Preview
Supervisory Circuits with
I2C Serial CMOS EEPROM,
Precision Reset Controller
and Watchdog Timer (16K)
www.onsemi.com
Description
The N84C161/2 is a complete memory and supervisory solution for
microcontroller−based systems. A serial EEPROM memory (16K)
with hardware memory write protection, a system power supervisor
with brown out protection and a watchdog timer are integrated
together in low power CMOS technology. Memory interface is via an
I2C bus.
SOIC−8
CASE 751BD
The 1.6−second watchdog circuit returns a system to a known good
state if a software or hardware glitch halts or “hangs” the system. The
N84C161 watchdog monitors the SDA line, making an additional PC
PIN CONFIGURATION
board trace unnecessary. The lower cost N84C162 does not have a
DC 1
8 VCC
watchdog timer.
The power supply monitor and reset circuit protects memory and
system controllers during power up/down and against brownout
conditions. Five reset threshold voltages support 5 V, 3.3 V and 3 V
RESET
WP
GND
2 N84C161 7
3 N84C162 6
45
RESET
SCL
SDA
systems. If power supply voltages are out of tolerance reset signals
become active, preventing the system microcontroller, ASIC or
peripherals from operating. Reset signals become inactive typically
PIN FUNCTIONS
200 ms after the supply voltage exceeds the reset threshold level. With
Pin Name Function
both active high and low reset signals, interface to microcontrollers
and other ICs is simple. In addition, a reset pin can be used as a
debounced input for pushbutton manual reset capability.
The N84C161/2 memory features a 16−byte page. In addition,
DC
RESET
WP
Do Not Connect
Active Low Reset I/O
Write Protect
hardware data protection is provided by a write protect pin WP and by
GND
Ground
a VCC sense circuit that prevents writes to memory whenever VCC falls
below the reset threshold or until VCC reaches the reset threshold
during power up.
These devices are available in a green SOIC−8 package.
Features
SDA
SCL
RESET
VCC
Serial Data/Address
Clock Input
Active High Reset I/O
Power Supply
Watchdog Monitors SDA Signal (N84C161)
400 kHz I2C Bus Compatible
ORDERING INFORMATION
2.7 V to 6 V Operation
For Ordering Information details, see page 11.
Low Power CMOS Technology
16−Byte Page Write Buffer
Built−in Inadvertent Write Protection
VCC Lock Out
Write Protection Pin, WP
1,000,000 Program/Erase Cycles
Manual Reset
100 Year Data Retention
Active High or Low Reset
8−Pin SOIC
Precision Power Supply Voltage Monitor
5 V, 3.3 V and 3 V Systems
Five Threshold Voltage Options
Commercial and Industrial Temperature Ranges
These Devices are Pb−Free, Halogen Free/BFR Free
and are RoHS Compliant
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
© Semiconductor Components Industries, LLC, 2016
September, 2016 − Rev. P0
1
Publication Order Number:
N84C161/D


  ON Semiconductor Electronic Components Datasheet  

N84C162 Datasheet

Supervisory Circuits

No Preview Available !

N84C161, N84C162
Table 1. RESET THRESHOLD OPTION
Part Dash
Number
Minimum Thresh- Maximum Thresh-
old old
−45 4.50 4.75
−42 4.25 4.50
−30 3.00 3.15
−28 2.85 3.00
−25 2.55 2.70
EXTERNAL LOAD
V CC
GND
BLOCK DIAGRAM
D OUT
ACK
WORD ADDRESS
BUFFERS
SENSEAMPS
SHIFT REGISTERS
COLUMN
DECODERS
SDA
WP
STA RT/ STOP
LOGIC
CONTROL
LOGIC
XDEC
16K
EEPROM
Only for
N84C161
RESET Controller
WAT CH DO G Precision
Vcc Monitor
DATA IN STORAGE
HIGH VOLTAGE/
TIMING CONTROL
STATE COUNTERS
SLAVE
ADDRESS
COMPARATORS
SCL
RESET RESET
www.onsemi.com
2


Part Number N84C162
Description Supervisory Circuits
Maker ON Semiconductor
Total Page 11 Pages
PDF Download

N84C162 Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 N84C161 Supervisory Circuits
ON Semiconductor
2 N84C162 Supervisory Circuits
ON Semiconductor
3 N84C163 Supervisory Circuits
ON Semiconductor





Part Number Start With

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

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy