| PartNumber | AT27C040-90TU | AT27C040-90TC | AT27C040-90TI |
| Description | EPROM 4Mb (512Kx8) OTP 5V 90ns | IC EPROM 4M PARALLEL 32TSOP | IC EPROM 4M PARALLEL 32TSOP |
| Manufacturer | Microchip | - | - |
| Product Category | EPROM | - | - |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | TSOP-32 | - | - |
| Type | OTP | - | - |
| Memory Size | 4 Mb | - | - |
| Organization | 512 k x 8 | - | - |
| Interface Type | Parallel | - | - |
| Operating Supply Current | 30 mA | - | - |
| Programming Voltage | 13 V | - | - |
| Supply Voltage Min | 4.5 V | - | - |
| Minimum Operating Temperature | 0 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Series | AT27C040 | - | - |
| Access Time | 70 ns | - | - |
| Brand | Microchip Technology / Atmel | - | - |
| Operating Supply Voltage | 5 V | - | - |
| Output Enable Access Time | 35 ns | - | - |
| Product Type | EPROM | - | - |
| Factory Pack Quantity | 156 | - | - |
| Subcategory | Memory & Data Storage | - | - |