| Part Number | AT27C400-90JC | AT27C400-90PC |
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology |
| Category | Memory | Memory |
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| Product Status | Obsolete | Obsolete |
| Memory Type | Non-Volatile | Non-Volatile |
| Memory Format | EPROM | EPROM |
| Technology | EPROM - OTP | EPROM - OTP |
| Memory Size | 4Mb (512K x 8, 256K x 16) | 4Mb (512K x 8, 256K x 16) |
| Memory Interface | Parallel | Parallel |
| Clock Frequency | - | - |
| Write Cycle Time - Word, Page | - | - |
| Access Time | 90 ns | 90 ns |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Operating Temperature | 0°C ~ 70°C (TC) | 0°C ~ 70°C (TC) |
| Mounting Type | Surface Mount | Through Hole |
| Package / Case | 44-LCC (J-Lead) | 40-DIP (0.600", 15.24mm) |
| Supplier Device Package | 44-PLCC (16.6x16.6) | 40-PDIP |