Microchip Technology AT28BV256-20TU, 256kbit Parallel EEPROM Memory, 200ns 28-Pin TSOP Parallel

Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): TW
Product Details

The Microchip AT28BV256 is a high-performance 256Kbit Parallel EEPROM offering access times to 200ns with 54mW power dissipation and 2.7V supply voltage. Deselected, CMOS standby current is less than 20μA.

32 Kbits x 8 (256 Kbit)
2.7V to 3.6V Supply
Parallel Interface
200ns access time
Self-Timed Erase and Write Cycles (10 ms max)
Page Write and Byte Write
Data Polling for end of write detection
Low Power Consumption
Read / Write current 15 mA (Max)
Standby current 20 μA (Typ), 50 μA (Max)
Write-Protection
Hardware Protection
Software Data Protect
More than 100,000 erase/write cycles
Data retention > 10 years
Temperature Ranges
Standard Temperature Range: -40°C to 85°C
Available in Green (Pb/Halide-free) Packaging Only
32-lead, Plastic J-leaded Chip Carrier (PLCC)
28-lead, 0.300" Wide, Plastic Gull Wing Small Outline (SOIC)
28-lead, Plastic Thin Small Outline Package (TSOP)

Specifications
Attribute Value
Memory Size 256kbit
Interface Type Parallel
Package Type TSOP
Mounting Type Surface Mount
Pin Count 28
Organisation 32Kbit x 8
Minimum Operating Supply Voltage 2.7 V
Maximum Operating Supply Voltage 3.6 V
Programming Voltage 2.7 → 3.6V
Number of Bits per Word 8bit
Length 8.1mm
Width 11.9mm
Height 1.05mm
Dimensions 8.1 x 11.9 x 1.05mm
Data Retention 10yr
Maximum Random Access Time 200ns
Maximum Operating Temperature +85 °C
Minimum Operating Temperature -40 °C
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Price Each (In a Tray of 234)
£ 4.67
(exc. VAT)
£ 5.60
(inc. VAT)
Units
Per unit
Per Tray*
234 +
£4.67
£1,092.78
*price indicative
Not available for guaranteed pre 9am/10am delivery
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