The CY27C256A-70WMB is a 28-pin dual-port EPROM with 32,768 words of memory. It operates at a supply voltage of 4.5 to 5.5 volts with a maximum current of 0.06 amps. The device has a maximum access time of 70 nanoseconds and a standby current of 0.025 amps. It is packaged in a hermetically sealed, windowed CERDIP-28 package, measuring 0.600 inches in width and 37.338 inches in length. The device is rated for operation over a temperature range of -55 to 125 degrees Celsius and meets the 38535Q/M, 38534H, and 883B screening levels.
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Cypress CY27C256A-70WMB technical specifications.
| Max Operating Temperature | 125 |
| Number of Terminals | 28 |
| Min Operating Temperature | -55 |
| Terminal Position | DUAL |
| JEDEC Package Code | R-GDIP-T28 |
| Width | 15.24 |
| Length | 37.338 |
| Pin Count | 28 |
| Number of Functions | 1 |
| Temperature Grade | MILITARY |
| Supply Voltage-Nom (Vsup) | 5 |
| Supply Voltage-Max (Vsup) | 5.5 |
| Supply Voltage-Min (Vsup) | 4.5 |
| Supply Current-Max | 0.06 |
| Number of Words | 32768 |
| Number of Words Code | 32000 |
| Memory IC Type | UVPROM |
| Parallel/Serial | PARALLEL |
| Standby Current-Max | 0.025 |
| Access Time-Max | 70 |
| Screening Level | 38535Q/M;38534H;883B |
| I/O Type | COMMON |
| RoHS | No |
| Eccn Code | EAR99 |
| HTS Code | 8542.32.00.61 |
| REACH | not_compliant |
| Military Spec | False |
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