The AT27C256R-20JC is a 32K OTP ROM from Atmel, featuring a 5V supply voltage and a maximum operating temperature of 70 degrees Celsius. It has 32 terminals and a commercial temperature grade. The device is available in a 32-pin quad flat no-lead package, measuring 11.43mm in width and 13.97mm in length. It operates with a maximum supply current of 0.02mA and a maximum standby current of 0.0001mA, with an access time of up to 200ns.
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| Max Operating Temperature | 70 |
| Number of Terminals | 32 |
| Min Operating Temperature | 0 |
| Terminal Position | QUAD |
| JEDEC Package Code | R-PQCC-J32 |
| Width | 11.43 |
| Length | 13.97 |
| Pin Count | 32 |
| Number of Functions | 1 |
| Temperature Grade | COMMERCIAL |
| Supply Voltage-Nom (Vsup) | 5 |
| Supply Voltage-Max (Vsup) | 5.5 |
| Supply Voltage-Min (Vsup) | 4.5 |
| Supply Current-Max | 0.02 |
| Number of Words | 32768 |
| Number of Words Code | 32000 |
| Memory IC Type | OTP ROM |
| Parallel/Serial | PARALLEL |
| Standby Current-Max | 0.0001 |
| Access Time-Max | 200 |
| I/O Type | COMMON |
| RoHS | No |
| Eccn Code | EAR99 |
| Lead Free | No |
| HTS Code | 8542.32.00.71 |
| REACH | Compliant |
| Military Spec | False |
