The W78M32VP-XBX is a 256Mb, 3.3 volt-only Page Mode memory device.
The device offers fast page access times allowing high speed microprocessors to operate without wait states. To eliminate bus contention the device has separate chip enable (CS#), write enable (WE#) and output enable (OE#) controls.
The device offers uniform 64 Kword (128Kb) Sectors.
Access Times of 110, 120ns
159 PBGA, 13x22mm 1.27mm pitch
Page size is 8 words: Fast page read access from random locations within the page.
Uniform Sector Architecture
One hundred twenty-eight 64 kword
Single power supply operation
3 volt read, erase, and program operations
All input levels (address, control, and DQ input levels) and outputs are determined by voltage on VIO input. VIO range is 1.65 to VCC
Write operation status bits indicate program and erase operation completion
Suspend and Resume commands for program and erase operations
Hardware Reset# input resets device
Accelerates programming time for greater throughput.
Protects first and last sector regardless of sector protection settings
Secured Silicon Sector region
128-word sector for permanent, secure identification through an 8-word random Electronic Serial Number, accessible through a command sequence
May be programmed and locked at the factory or by the customer
100,000 erase cycles per sector typical
20-year data retention typical
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