NVRAM

NVRAM (Non –Volatile Random-Access Memory ) is a memory chip that stores data within an electronic circuit. NVRAM is able to store data even when the power is turned off. This is unlike RAM and DRAM which lose memory when there is no power. 

NVRAM memory is ideal for circuits that require a quick start up time as they are quick at reading and writing. However, they are not always suitable for main memory usage, due to limited memory sizes and power consumption. NVRAM is battery-back which, at some point, will need replacing.

These devices come in a semiconductor package. Package types include SIPP (single inline pin package), DIP (dual inline package), CERDIP (ceramic dual inline package) and PDIP (plastic inline package)

Types of NVRAM:

  • RTC/NVRAM are also known as CMOS chips. They combine NVRAM with a real-time clock (RTC). The clock is there to read the date and time, which is stored by the NVRAM. RTC/NVRAM chips are designed for lower power consumption. 
  • EEPROM stands for electrically erasable programmable read-only memory. It is a type of non-volatile memory which stores data that can be deleted and reprogrammed. 
  • FRAM stands for ferroelectric RAM. It uses a ferroelectric later for non-volatility. 
  • MRAM is magnetoresistive RAM. It stores its data within magnetic domains. 

Where is NVRAM used?

NVRAM memory is used in any device that requires settings to be stored, such as the date and time. This includes:

  • Cameras
  • Computer Monitors
  • Smart Cards
  • Tablets
  • Smartphones
  • USB drives

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Description Price Memory Size Organisation Interface Type Data Bus Width Maximum Random Access Time Mounting Type Package Type Pin Count Dimensions Length Width Height Maximum Operating Supply Voltage Maximum Operating Temperature
RS Stock No. 192-1643
Mfr. Part No.DS1554-70+
TWD845.00
Each
units
- - - - - Through Hole EDIP 32 43.69 x 18.8 x 9.4mm 43.69mm 18.8mm 9.4mm 5.5 V +70 °C
RS Stock No. 189-7466
Mfr. Part No.DS1243Y-120+
TWD742.30
Each (In a Tube of 12)
units
- - Parallel - 120ns Through Hole EDIP 28 39.37 x 18.29 x 10.67mm 39.37mm 18.29mm 10.67mm 5.5 V +70 °C
RS Stock No. 829-4073
Mfr. Part No.M48T12-150PC1
TWD469.00
Each
units
- - - - - Through Hole PCDIP 24 34.8 x 18.34 x 8.89mm 34.8mm 18.34mm 8.89mm 5.5 V +70 °C
RS Stock No. 103-1455
Mfr. Part No.M48Z12-70PC1
TWD245.10
Each (In a Tube of 14)
units
16kbit 2K x 8 bit Parallel 8bit 70ns Through Hole PCDIP 24 34.8 x 18.34 x 8.89mm 34.8mm 18.34mm 8.89mm 5.5 V +70 °C
RS Stock No. 194-9066
Mfr. Part No.CY14B101NA-ZS25XI
TWD695.00
Each
units
1Mbit 64K x 16 bit Parallel 16bit 45ns Surface Mount TSOP 44 18.51 x 10.26 x 1.04mm 18.51mm 10.26mm 1.04mm 3.6 V +85 °C
RS Stock No. 194-9094
Mfr. Part No.CY14V101Q3-SFXI
TWD383.00
Each
units
1Mbit 128K x 8 bit SPI 8bit 25ns Surface Mount SOIC 16 10.49 x 7.59 x 2.36mm 10.49mm 7.59mm 2.36mm 3.6 V +85 °C
RS Stock No. 686-8552
Mfr. Part No.M48T35AV-10PC1
TWD769.00
Each
units
256kbit 32K x 8 bit Parallel 8bit 100ns Through Hole PCDIP 28 39.98 x 18.34 x 8.89mm 39.88mm 18.34mm 8.89mm 3.6 V +70 °C
RS Stock No. 193-8447
Mfr. Part No.CY14B101LA-SZ45XI
TWD805.80
Each (In a Tube of 22)
units
1Mbit 128 k x 8 bit Parallel 8bit 45ns Surface Mount SOIC 32 22.517 x 10.262 x 1.05mm 22.52mm 10.26mm 1.05mm 3.6 V +85 °C
RS Stock No. 192-1531
Mfr. Part No.DS1220AD-100+
TWD431.00
Each
units
16kbit 2K x 8 bit Parallel 8bit 100ns Through Hole EDIP 24 34.04 x 18.29 x 9.4mm 34.04mm 18.29mm 9.4mm 5.5 V +70 °C
RS Stock No. 191-5735
Mfr. Part No.DS1225AD-70IND+
TWD615.00
Each
units
64kbit 8K x 8 - - 70ns Through Hole EDIP 28 39.37 x 18.29 x 10.67mm 39.37mm 18.29mm 10.67mm 5.5 V +85 °C
RS Stock No. 169-8242
Mfr. Part No.DS1230AB-100+
TWD685.70
Each (In a Tube of 12)
units
256kbit 32K x 8 bit Parallel 8bit 100ns Through Hole EDIP 28 39.12 x 18.8 x 9.4mm 39.12mm 18.8mm 9.4mm 5.25 V +70 °C
RS Stock No. 200-6577
Mfr. Part No.GR881-HT
TWD1,211.00
Each
units
64kbit 8K x 8 bit - 8bit 70ns Through Hole PDIP 28 37 x 18 x 7.3mm 37mm 18mm 7.3mm 5.5 V +85 °C
RS Stock No. 194-9083
Mfr. Part No.CY14B108N-BA25XI
TWD1,959.60
Each (In a Tray of 299)
units
8Mbit 512K x 16 bit Parallel 16bit 45ns Surface Mount FBGA 48 10 x 6 x 0.21mm 10mm 6mm 0.21mm 3.6 V +85 °C
RS Stock No. 194-9069
Mfr. Part No.CY14B101Q2A-SXI
TWD292.80
Each (In a Tube of 97)
units
1Mbit 128K x 8 bit SPI 8bit - Surface Mount SOIC 8 4.97 x 3.98 x 1.47mm 4.97mm 3.98mm 1.47mm 3.6 V +85 °C
RS Stock No. 124-2932
Mfr. Part No.CY14E256LA-SZ45XI
TWD645.00
Each
units
256kbit 32K x 8 bit Parallel 8bit 45ns Surface Mount SOIC 32 20.87 x 7.59 x 2.28mm 20.87mm 7.59mm 2.28mm 5.5 V +85 °C
RS Stock No. 194-9062
Mfr. Part No.CY14B101LA-SP25XI
TWD921.00
Each
units
1Mbit 128K x 8 bit Parallel 8bit 45ns Surface Mount SSOP 48 0.63 x 0.29 x 0.09in 16mm 7.37mm 2.29mm 3.6 V +85 °C
RS Stock No. 189-9200
Mfr. Part No.DS1225AD-150+
TWD588.00
Each
units
64kbit 8K x 8 bit Parallel 8bit 150ns Through Hole EDIP 28 39.12 x 18.29 x 9.4mm 39.12mm 18.29mm 9.4mm 5.5 V +70 °C
RS Stock No. 194-9058
Mfr. Part No.CY14B101KA-SP25XI
TWD825.00
Each
units
1Mbit 128K x 8 bit Parallel 8bit 45ns Surface Mount SSOP 48 0.63 x 0.29 x 0.09in 16mm 7.37mm 2.29mm 3.6 V +85 °C
RS Stock No. 191-4203
Mfr. Part No.DS1230AB-70IND+
TWD638.40
Each (In a Tube of 12)
units
256kbit 32K x 8 - - 70ns Through Hole EDIP 28 39.37 x 18.8 x 10.67mm 39.37mm 18.8mm 10.67mm 5.25 V +85 °C
RS Stock No. 168-8612
Mfr. Part No.M48T12-150PC1
TWD445.10
Each (In a Tube of 14)
units
- - - - - Through Hole PCDIP 24 34.8 x 18.34 x 8.89mm 34.8mm 18.34mm 8.89mm 5.5 V +70 °C