Greenwich Instruments 256kbit 70ns NVRAM, 28-Pin PDIP, GR3281-HT
- RS Stock No.:
- 200-6583
- Mfr. Part No.:
- GR3281-HT
- Brand:
- Greenwich Instruments
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Each (In a Pack of 5)
£1.96
(exc. VAT)
£2.35
(inc. VAT)
- RS Stock No.:
- 200-6583
- Mfr. Part No.:
- GR3281-HT
- Brand:
- Greenwich Instruments
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Greenwich Instruments | |
| Memory Size | 256kbit | |
| Organisation | 32K x 8 bit | |
| Interface Type | Parallel | |
| Data Bus Width | 8bit | |
| Maximum Random Access Time | 70ns | |
| Mounting Type | Through Hole | |
| Package Type | PDIP | |
| Pin Count | 28 | |
| Dimensions | 37 x 18 x 7.3mm | |
| Length | 37mm | |
| Width | 18mm | |
| Height | 7.3mm | |
| Maximum Operating Supply Voltage | 5.5 V | |
| Maximum Operating Temperature | +85 °C | |
| Minimum Operating Temperature | -40 °C | |
| Number of Words | 32K | |
| Minimum Operating Supply Voltage | 4.75 V | |
| Number of Bits per Word | 8bit | |
Select all | ||
|---|---|---|
Brand Greenwich Instruments | ||
Memory Size 256kbit | ||
Organisation 32K x 8 bit | ||
Interface Type Parallel | ||
Data Bus Width 8bit | ||
Maximum Random Access Time 70ns | ||
Mounting Type Through Hole | ||
Package Type PDIP | ||
Pin Count 28 | ||
Dimensions 37 x 18 x 7.3mm | ||
Length 37mm | ||
Width 18mm | ||
Height 7.3mm | ||
Maximum Operating Supply Voltage 5.5 V | ||
Maximum Operating Temperature +85 °C | ||
Minimum Operating Temperature -40 °C | ||
Number of Words 32K | ||
Minimum Operating Supply Voltage 4.75 V | ||
Number of Bits per Word 8bit | ||
- COO (Country of Origin):
- GB
The GR3281 is an industrial temperature range 32,768 word by 8 bits (32k x 8) non-volatile static RAM fabricated from advanced silicon gate CMOS technology and a high reliability lithium power cell.
The 28W dil pinout of the GR3281 conforms to the JEDEC standards and is fully compatible with normal static RAM.
The 28W dil pinout of the GR3281 conforms to the JEDEC standards and is fully compatible with normal static RAM.
The power down circuit is fully automatic and is referenced at 4.5V. At this point the GR3281 is write protected by an internal inhibit function for data protection and the memory contents are retained by the lithium power source.
Power down is very fast, this being essential for data integrity, taking a maximum 15 microseconds to power down from 5V to 0V. This is much faster than any system power failure conditions; therefore there are no special conditions required when installing the GR3281.
The GR3281 can, without external power, retain data almost indefinitely; the limiting factor being the shelf life of the lithium power cell, typically 10 years.
Power down is very fast, this being essential for data integrity, taking a maximum 15 microseconds to power down from 5V to 0V. This is much faster than any system power failure conditions; therefore there are no special conditions required when installing the GR3281.
The GR3281 can, without external power, retain data almost indefinitely; the limiting factor being the shelf life of the lithium power cell, typically 10 years.
ROHS Compliant.
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