FFFE/互通料号 (形式，腳位和功能对等)
| IC 编号 | 脚位/封装 | 电压(伏) | 速度 | 温度规格 |
|---|---|---|---|---|
| AT28C64-25T1 | TSOP-28 | 5.0 V | 250 NS | 0 C~+70 C |
| AT28C64-25TC | TSOP-28 | 5.0 V | 250 NS | 0 C~+70 C |
| AT28C64-25TCSL766 | TSOP-28 | 5.0 V | 250 NS | 0 C~+70 C |
| AT28C64B-25T1 | TSOP-28 | 5.0 V | 250 NS | 0 C~+70 C |
| AT28C64B-25TC | TSOP-28 | 5.0 V | 250 NS | 0 C~+70 C |
| AT28C64B-25TZ | TSOP-28 | 5.0 V | 250 NS | 0 C~+70 C |
| AT28C64B25T1 | TSOP-28 | 5.0 V | 250 NS | 0 C~+70 C |
| AT28C64E25TC | TSOP-28 | 5.0 V | 250 NS | 0 C~+70 C |
| AT28C64X25TC | TSOP-28 | 5.0 V | 250 NS | 0 C~+70 C |