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DS1673E-3/T&R

Description
Real Time Clock
CategoryThe embedded processor and controller    Microcontrollers and processors   
File Size224KB,18 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric Compare View All

DS1673E-3/T&R Overview

Real Time Clock

DS1673E-3/T&R Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerMaxim
Parts packaging codeTSSOP
package instruction4.40 MM, TSSOP-20
Contacts20
Reach Compliance Codenot_compliant
ECCN codeEAR99
Other features3-CHANNEL, 8-BIT ADC
maximum clock frequency0.032 MHz
External data bus width1
Information access methodsSERIAL, 3-WIRE
interrupt capabilityY
JESD-30 codeR-PDSO-G20
JESD-609 codee0
length6.5 mm
Humidity sensitivity level1
Number of terminals20
Number of timers
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP20,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)240
power supply3 V
Certification statusNot Qualified
Maximum seat height1.1 mm
Maximum supply voltage3.3 V
Minimum supply voltage2.7 V
Nominal supply voltage3 V
surface mountYES
technologyMOS
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
shortest timeSECONDS
Maximum time at peak reflow temperature20
VolatileYES
width4.4 mm
uPs/uCs/peripheral integrated circuit typeTIMER, REAL TIME CLOCK
DS1673
Portable System Controller
www.maxim-ic.com
GENERAL DESCRIPTION
The DS1673 portable system controller is a circuit
that incorporates many of the functions necessary for
low-power portable products integrated into one chip.
The device provides a real-time clock (RTC), NV
RAM controller, microprocessor monitor, and a
3-channel, 8-bit analog-to-digital converter (ADC).
Communication with the DS1673 is established
through a simple 3-wire interface.
The RTC provides seconds, minutes, hours, day,
date, month, and year information with leap year
compensation. The RTC also provides an alarm
interrupt. This interrupt works when the DS1673 is
powered by the system power supply or when in
battery-backup operation, so the alarm can be used to
wake up a system that is powered down.
Automatic backup and write protection of an external
SRAM is provided through the V
CCO
,
CEOL,
and
CEOH
pins. The backup energy source used to power
the RTC is also used to retain RAM data in the
absence of V
CC
through the V
CCO
pin. The chip-
enable outputs to RAM (CEOL and
CEOH)
are
controlled during power transients to prevent data
corruption.
FEATURES
Provides Real-Time Clock
Counts Seconds, Minutes, Hours, Date of the
Month, Month, Day of the Week, and Year
with Leap Year Compensation Valid Up to
2100
Power-Control Circuitry Supports System
Power-On from Day/Time Alarm
Microprocessor Monitor
Halts Microprocessor During Power Fail
Automatically Restarts Microprocessor after
Power Failure
Monitors Pushbutton for External Override
Halts and Resets an Out-of-Control
Microprocessor
NV RAM Control
Automatic Battery Backup and Write Protection
to External SRAM
3-Channel, 8-Bit ADC
Simple 3-Wire Interface
+3.0V or +5.0V Operation
PIN CONFIGURATION
TOP VIEW
V
BAT
V
CCO
SCLK
1
2
3
4
5
6
7
8
9
10
DS1673
20
19
18
17
16
15
14
13
12
11
ST
V
CC
X1
X2
AIN0
AIN1
AIN2
RST
BLE
BHE
ORDERING INFORMATION
PART*
DS1673E-3
DS1673E-3+
DS1673E-5
DS1673E-3/
T&R
DS1673E-3+
T&R
DS1673E-5/
T&R
DS1673S-3
DS1673S-5
VOLTAGE
(V)
3.0
3.0
5.0
3.0
3.0
5.0
3.0
5.0
PIN-
PACKAGE
20 TSSOP
20 TSSOP
20 TSSOP
20 TSSOP
20 TSSOP
20 TSSOP
20 SO
20 SO
TOP MARK†
DS1673-3
DS1673-3
DS1673-5
DS1673-3
DS1673-3
DS1673-5
DS1673S-3
DS1673S-5
I/O
CS
CEI
CEOL
CEOH
INT
GND
TSSOP (4.4mm)
SO (300 mils)
*
All devices are specified over the 0°C to +70°C operating range.
A “‘+” anywhere on the top mark denotes a lead-free device.
+ Denotes a lead(Pb)-free/RoHS-compliant device.
1 of 18
REV: 080805

DS1673E-3/T&R Related Products

DS1673E-3/T&R DS1673E-5
Description Real Time Clock Real Time Clock Portable System Controller
Is it lead-free? Contains lead Contains lead
Is it Rohs certified? incompatible incompatible
Maker Maxim Maxim
Parts packaging code TSSOP TSSOP
package instruction 4.40 MM, TSSOP-20 4.40 MM, TSSOP-20
Contacts 20 20
Reach Compliance Code not_compliant not_compliant
ECCN code EAR99 EAR99
Other features 3-CHANNEL, 8-BIT ADC 3-CHANNEL, 8-BIT ADC
maximum clock frequency 0.032 MHz 0.032 MHz
External data bus width 1 1
Information access methods SERIAL, 3-WIRE SERIAL, 3-WIRE
interrupt capability Y Y
JESD-30 code R-PDSO-G20 R-PDSO-G20
JESD-609 code e0 e0
length 6.5 mm 6.5 mm
Humidity sensitivity level 1 1
Number of terminals 20 20
Maximum operating temperature 70 °C 70 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code TSSOP TSSOP
Encapsulate equivalent code TSSOP20,.25 TSSOP20,.25
Package shape RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 240 240
power supply 3 V 5 V
Certification status Not Qualified Not Qualified
Maximum seat height 1.1 mm 1.1 mm
Maximum supply voltage 3.3 V 5.5 V
Minimum supply voltage 2.7 V 4.5 V
Nominal supply voltage 3 V 5 V
surface mount YES YES
technology MOS MOS
Temperature level COMMERCIAL COMMERCIAL
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form GULL WING GULL WING
Terminal pitch 0.65 mm 0.65 mm
Terminal location DUAL DUAL
shortest time SECONDS SECONDS
Maximum time at peak reflow temperature 20 20
Volatile YES YES
width 4.4 mm 4.4 mm
uPs/uCs/peripheral integrated circuit type TIMER, REAL TIME CLOCK TIMER, REAL TIME CLOCK
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