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See Technical Specifications

DS1321+ +BOM

Flexible Nonvolatile Controller with Lithium Battery

Manufacturer:

Maxim Integrated
Mfr.Part #:

DS1321+
Datasheet:

DS1321+ Datasheet (PDF)
packingQty:

Tube,25
packingOption:

Tube
tempRange:

-40 to 85C
Memory Type:

Nonvolatile SRAM
EDA/CAD Models:

Request Free CAD Models for DS1321+

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

DS1321+ General Description

The DS1321 Flexible Nonvolatile Controller with Lithium Battery Monitor is a CMOS circuit which solves the application problem of converting CMOS SRAMs into nonvolatile memory. Incoming power is monitored for an out-of-tolerance condition. When such a condition is detected, chip enable outputs are inhibited to accomplish write protection and the battery is switched on to supply the SRAMs with uninterrupted power. Special circuitry uses a low-leakage CMOS process which affords precise voltage detection at extremely low battery consumption. One DS1321 can support as many as four SRAMs arranged in any of three memory configurations.

Key Features

Converts CMOS SRAM into nonvolatile memory
Unconditionally write-protects SRAM when V_CC is out of tolerance
Automatically switches to battery backup supply when V_CC power failure occurs
Flexible memory organization
- Mode 0: 4 banks with 1 SRAM each
- Mode 1: 2 banks with 2 SRAMs each
- Mode 2: 1 bank with 4 SRAMs each
Monitors voltage of a lithium cell and provides advanced warning of impending battery failure
Signals low-battery condition on active low Battery Warning output signal
Resets processor when power failure occurs and holds processor in reset during system power-up
Optional 5% or 10% power-fail detection
16-pin PDIP, 16-pin SO and 20-pin TSSOP packages
Industrial temperature range of -40°C to +85°C

Specifications

model	DS1321+	packingQty	Tube,25
packingOption	Tube	lifeCycle	production
tempRange	-40 to 85C	Product Category	Memory Controllers
Memory Type	Nonvolatile SRAM	Battery Backup Switching	Yes
Supply Voltage - Max	5.5 V	Supply Voltage - Min	4.5 V
Operating Supply Current	100 uA, 1 mA	Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 85 C	Mounting Style	Through Hole
Height	3.18 mm	Length	18.92 mm
Lithium Battery Monitor	Yes	Number of Memory Channels	4 Channel
Operating Supply Voltage	5 V	Product Type	Memory Controllers
Series	DS1321	Factory Pack Quantity	25
Subcategory	Memory & Data Storage	Type	Non-Volatile SRAM (NVSRAM)
Width	6.1 mm	Part # Aliases	DS1321 90-13210+000
Unit Weight	0.057419 oz

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Ratings and Reviews

S**l 07/31/2023

Quality product, was updated when connected to Atmel Studio, works flawlessly with CodeVisionAVR.

A**n 10/27/2020

received in good condition..good supplier...recommended

T**r 04/17/2020

The goods came as at the specified time. However, after crossing the sender country, the tracking was not performed. Seller respect and respect!!!! I recommend!