FFFE/互通料號 (形式，腳位和功能對等)
| IC 編號 | 脚位/封装 | 電壓(伏) | 速度 | 溫度規格 |
|---|---|---|---|---|
| K4E641612C-TI5 | TSOP2(50) | 5.0 V | 50 NS | -40 C~+85 C |
| K4E641612C-TI50 | TSOP2(50) | 5.0 V | 50 NS | -40 C~+85 C |
| K4E641612C-TP50 | TSOP2(50) | 5.0 V | 50 NS | -40 C~+85 C |
| K4E641612C-TP50T00 | TSOP2(50) | 5.0 V | 50 NS | -40 C~+85 C |
| K4E641612D-TI50 | TSOP2(50) | 5.0 V | 50 NS | -40 C~+85 C |
| K4E641612D-TI50 OR MT4LCM | TSOP2(50) | 5.0 V | 50 NS | -40 C~+85 C |
| K4E641612D-TI5000 | TSOP2(50) | 5.0 V | 50 NS | -40 C~+85 C |
| K4E641612D-TI50T00 | TSOP2(50) | 5.0 V | 50 NS | -40 C~+85 C |
| K4E641612D-TP50 | TSOP2(50) | 5.0 V | 50 NS | -40 C~+85 C |
| K4E641612D-TP50000 | TSOP2(50) | 5.0 V | 50 NS | -40 C~+85 C |