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Part Number | AT27C256R-70JU | AT27C256R-70PU | AT27C256R-70RU | AT27C256R-70TU | AT27C256R-70JC | AT27C256R-70JI |
---|---|---|---|---|---|---|
Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
Product Status | Active | Active | Obsolete | Obsolete | Obsolete | Obsolete |
Memory Type | Non-Volatile | Non-Volatile | Non-Volatile | Non-Volatile | Non-Volatile | Non-Volatile |
Memory Format | EPROM | EPROM | EPROM | EPROM | EPROM | EPROM |
Technology | EPROM - OTP | EPROM - OTP | EPROM - OTP | EPROM - OTP | EPROM - OTP | EPROM - OTP |
Memory Size | 256Kb (32K x 8) | 256Kb (32K x 8) | 256Kb (32K x 8) | 256Kb (32K x 8) | 256Kb (32K x 8) | 256Kb (32K x 8) |
Memory Interface | Parallel | Parallel | Parallel | Parallel | Parallel | Parallel |
Clock Frequency | - | - | - | - | - | - |
Write Cycle Time - Word, Page | - | - | - | - | - | - |
Access Time | 70 ns | 70 ns | 70 ns | 70 ns | 70 ns | 70 ns |
Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
Operating Temperature | -40°C ~ 85°C (TC) | -40°C ~ 85°C (TC) | -40°C ~ 85°C (TC) | -40°C ~ 85°C (TC) | 0°C ~ 70°C (TC) | -40°C ~ 85°C (TC) |
Mounting Type | Surface Mount | Through Hole | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
Package / Case | 32-LCC (J-Lead) | 28-DIP (0.600", 15.24mm) | 28-SOIC (0.342", 8.69mm Width) | 28-TSSOP (0.465", 11.80mm Width) | 32-LCC (J-Lead) | 32-LCC (J-Lead) |
Supplier Device Package | 32-PLCC (13.97x11.43) | 28-PDIP | 28-SOIC | 28-TSOP | 32-PLCC (13.97x11.43) | 32-PLCC (13.97x11.43) |