Datasheets
DS1284QN by:
Maxim Integrated Products
Dallas Semiconductor
Maxim Integrated Products
Rochester Electronics LLC
Not Found

Real Time Clock, Volatile, 1 Timer(s), CMOS, PQCC28, 0.452 INCH, PLASTIC, LCC-28

Part Details for DS1284QN by Maxim Integrated Products

Results Overview of DS1284QN by Maxim Integrated Products

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Applications Consumer Electronics Energy and Power Systems Renewable Energy

DS1284QN Information

DS1284QN by Maxim Integrated Products is a Timer or RTC.
Timers or RTCs are under the broader part category of Microcontrollers and Processors.

Microcontrollers (MCUs) are small, low-power integrated circuits used to control embedded systems. Microcontrollers are primarily used to automate and control devices. Read more about Microcontrollers and Processors on our Microcontrollers and Processors part category page.

Part Details for DS1284QN

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DS1284QN Part Data Attributes

DS1284QN Maxim Integrated Products
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DS1284QN Maxim Integrated Products Real Time Clock, Volatile, 1 Timer(s), CMOS, PQCC28, 0.452 INCH, PLASTIC, LCC-28
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Pbfree Code No
Rohs Code No
Part Life Cycle Code Obsolete
Ihs Manufacturer MAXIM INTEGRATED PRODUCTS INC
Part Package Code QLCC
Package Description 0.452 INCH, PLASTIC, LCC-28
Pin Count 28
Reach Compliance Code not_compliant
ECCN Code EAR99
HTS Code 8542.32.00.41
Additional Feature ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P
Clock Frequency-Max 0.032 MHz
External Data Bus Width 8
Information Access Method PARALLEL, DIRECT ADDRESS
Interrupt Capability Y
JESD-30 Code S-PQCC-J28
JESD-609 Code e0
Length 11.505 mm
Moisture Sensitivity Level 1
Number of Terminals 28
Number of Timers
Operating Temperature-Max 85 °C
Operating Temperature-Min -40 °C
Package Body Material PLASTIC/EPOXY
Package Code QCCJ
Package Equivalence Code LDCC28,.5SQ
Package Shape SQUARE
Package Style CHIP CARRIER
Peak Reflow Temperature (Cel) 240
Qualification Status Not Qualified
Seated Height-Max 4.57 mm
Supply Voltage-Max 5.5 V
Supply Voltage-Min 4.5 V
Supply Voltage-Nom 5 V
Surface Mount YES
Technology CMOS
Temperature Grade INDUSTRIAL
Terminal Finish TIN LEAD
Terminal Form J BEND
Terminal Pitch 1.27 mm
Terminal Position QUAD
Time-Min 1/100 SECOND
Time@Peak Reflow Temperature-Max (s) 20
Volatile YES
Width 11.505 mm
uPs/uCs/Peripheral ICs Type TIMER, REAL TIME CLOCK

Alternate Parts for DS1284QN

This table gives cross-reference parts and alternative options found for DS1284QN. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of DS1284QN, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
DS1284Q+T&R Maxim Integrated Products Check for Price Real Time Clock, Volatile, 1 Timer(s), CMOS, PQCC28, 0.452 INCH, ROHS COMPLIANT, PLASTIC, LCC-28 DS1284QN vs DS1284Q+T&R
DS1284QN/T&R Maxim Integrated Products Check for Price Real Time Clock, Volatile, 1 Timer(s), CMOS, PQCC28, 0.452 INCH, PLASTIC, LCC-28 DS1284QN vs DS1284QN/T&R
DS1284Q Maxim Integrated Products Check for Price Real Time Clock, Volatile, 1 Timer(s), CMOS, PQCC28, 0.452 INCH, PLASTIC, LCC-28 DS1284QN vs DS1284Q
DS1284QN+ Maxim Integrated Products Check for Price Real Time Clock, Volatile, 1 Timer(s), CMOS, PQCC28, 0.452 INCH, ROHS COMPLIANT, PLASTIC, LCC-28 DS1284QN vs DS1284QN+

DS1284QN Related Parts

DS1284QN Frequently Asked Questions (FAQ)

  • The recommended layout and routing for the crystal oscillator circuit can be found in the Maxim Integrated Products application note 3583, 'Crystal Oscillator Circuit Guide'. It provides guidelines for layout, routing, and component selection to ensure reliable and accurate oscillator operation.

  • To ensure the DS1284QN is properly reset during power-up, connect the RST pin to a 10kΩ pull-up resistor to VCC, and add a 0.1μF capacitor from RST to GND. This will ensure a clean reset signal during power-up and prevent any potential latch-up conditions.

  • The maximum allowed capacitance on the X1 and X2 pins is 20pF. Exceeding this value may affect the oscillator's start-up time and frequency stability.

  • While the DS1284QN is optimized for 32.768kHz crystals, it can be used with other frequencies. However, the device's accuracy and stability may be affected. Consult the datasheet and application notes for guidance on using alternative crystal frequencies.

  • The DS1284QN's POR circuit is designed to reset the device during power-up and power-down cycles. To ensure proper operation, ensure that the power supply ramps up and down slowly (typically 10ms to 100ms) to allow the POR circuit to properly detect the power transitions.