 |  |  | |
| PartNumber | AT27C256R-90PC | AT27C256R-90JI | AT27C256R-90PA |
| Description | EPROM 256k bit | EPROM 256k bit | IC EPROM 256K PARALLEL 28DIP |
| Manufacturer | Microchip | Microchip | Atmel |
| Product Category | EPROM | EPROM | Memory |
| RoHS | N | N | - |
| Mounting Style | Through Hole | SMD/SMT | - |
| Package / Case | PDIP-28 | PLCC-32 | - |
| Type | OTP | OTP | - |
| Memory Size | 256 kbit | 256 kB | 256K (32K x 8) |
| Organization | 32 k x 8 | 32 k x 8 | - |
| Interface Type | Parallel | Parallel | - |
| Operating Supply Current | 20 mA | 20 mA | - |
| Programming Voltage | 13 V | 13 V | - |
| Supply Voltage Min | 4.5 V | 4.5 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 70 C | + 85 C | - |
| Series | AT27C256R | AT27C256R | - |
| Access Time | 90 ns | 90 ns | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Operating Supply Voltage | 5 V | 2.7 V to 3.6 V | - |
| Output Enable Access Time | 30 ns | 30 ns | - |
| Product Type | EPROM | EPROM | - |
| Factory Pack Quantity | 14 | - | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| Unit Weight | 0.147798 oz | - | - |
| Packaging | - | - | Tube |
| Package Case | - | - | 28-DIP (0.600", 15.24mm) |
| Operating Temperature | - | - | -40°C ~ 125°C (TC) |
| Interface | - | - | Parallel |
| Voltage Supply | - | - | 4.5 V ~ 5.5 V |
| Supplier Device Package | - | - | 28-PDIP |
| Memory Type | - | - | EPROM OTP |
| Speed | - | - | 90ns |
| Format Memory | - | - | EPROMs |
| Manufacturer | Part # | Description | RFQ |
|---|---|---|---|
Microchip Technology / Atmel |
AT27C256R-90PC | EPROM 256k bit | |
| AT27C256R45JU | OTP ROM, 32KX8, 45ns, CMOS, PQCC32 | ||
| AT27C256R70PU | OTP ROM, 32KX8, 70ns, CMOS, PDIP28 | ||
| AT27C256R-90PC | IC EPROM 256K PARALLEL 28DIP | ||
| AT27C256R-90TC | IC EPROM 256K PARALLEL 28TSOP | ||
| AT27C256R12JC | OTP ROM, 32KX8, 120ns, CMOS, PQCC32 | ||
| AT27C256R15PC | New and Original | ||
| AT27C256R70PI | New and Original | ||
| AT27C256R90JC | OTP ROM, 32KX8, 90ns, CMOS, PQCC32 | ||
| AT27C256RL-90KC | New and Original | ||
| AT27C256R-90JI | IC EPROM 256K PARALLEL 32PLCC | ||
| AT27C256R-90PA | IC EPROM 256K PARALLEL 28DIP | ||
| AT27C256R-90PI | IC EPROM 256K PARALLEL 28DIP | ||
| AT27C256R-90RC | IC EPROM 256K PARALLEL 28SOIC | ||
| AT27C256R-90RI | IC EPROM 256K PARALLEL 28SOIC | ||
| AT27C256R-90TI | IC EPROM 256K PARALLEL 28TSOP |