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Device: U637H256

Manufacturer: ZMD

Part number description for this device:

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U ZMD product  
X Power Supply Blank = 5VL = 3V / 3.3V
XXX Store Type 630 = HardStore631 = SoftStore632...636 = PowerStore637 = CapStore
X SRAM Type Blank = More than 60ns (Slow)H = Least than 60ns (Fast)
X Device Type Blank = Monolithic ICM = Module
XXX Density 04 = 512x816 = 2kx864 = 8kx8256 = 32kx8
X ESD Class Blank = >2000VB = >1000VC = >500V
X Package Type S = 300mil SOPS1 = SOPD = 300mil Plastic DIPD1 = 600mil Plastic DIP
X Temperature Range C = 0°C to 70°CK = -40°C to 85°CA = -40°C to 125°CM = -55°C to 125°C
XX Access Time 25 = 25 ns35 = 35 ns45 = 45 ns55 = 55 ns70 = 70 ns

Note: Part number description table describes usual part-numbering system for more chips, therefore this table can contain information, that might not be valid for the actually selected chip. The information here are provided on the best-effort basis and might be either inaccurate or incoplete. Therefore always check the latest datasheet of the chip for part number description detail. If you find some inaccuracy, let us please know.

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Supported by programmers and programming adapters/modules:

BeeHive204 direct connection
BeeHive208S direct connection
BeeProg2 direct connection
BeeProg2C direct connection
SmartProg2 direct connection
MEMprog2 (discontinued) direct connection
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