| Part Numbers | Manufacturer Name | Datasheet | Format - Memory | Memory Type | Memory Size | Speed | Interface | Voltage - Supply | Operating Temperature | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|
| AT27C256R-12PA | ATMEL CORP | EPROMs | EPROM OTP | 256K (32K x 8) | 120ns | Parallel | 4.5 V ~ 5.5 V | -40?C ~ 125?C | 28-DIP (0.600", 15.24mm) | |
| AT27C256R-15PA | ATMEL CORP | EPROMs | EPROM OTP | 256K (32K x 8) | 150ns | Parallel | 4.5 V ~ 5.5 V | -40?C ~ 125?C | 28-DIP (0.600", 15.24mm) | |
| AT27C256R-70PA | ATMEL CORP | EPROMs | EPROM OTP | 256K (32K x 8) | 70ns | Parallel | 4.5 V ~ 5.5 V | -40?C ~ 125?C | 28-DIP (0.600", 15.24mm) | |
| AT27C256R-90PA | ATMEL CORP | EPROMs | EPROM OTP | 256K (32K x 8) | 90ns | Parallel | 4.5 V ~ 5.5 V | -40?C ~ 125?C | 28-DIP (0.600", 15.24mm) | |
| AT27C512R-15RA | ATMEL CORP | EPROMs | EPROM OTP | 512K (64K x 8) | 150ns | Parallel | 4.5 V ~ 5.5 V | -40?C ~ 125?C | 32-LCC (J-Lead) | |
| AT27C512R-70RA | ATMEL CORP | EPROMs | EPROM OTP | 512K (64K x 8) | 70ns | Parallel | 4.5 V ~ 5.5 V | -40?C ~ 125?C | 32-LCC (J-Lead) | |
| AT27C512R-90RA | ATMEL CORP | EPROMs | EPROM OTP | 512K (64K x 8) | 90ns | Parallel | 4.5 V ~ 5.5 V | -40?C ~ 125?C | 32-LCC (J-Lead) |
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