| Description | Package | Voltage | Speed | Temperature |
|---|---|---|---|---|
| HY57V28420ALT-S | TSOP2(54) | 3.3 V | 100 MHZ | 0 C~+70 C |
| HY57V28420AT-P | TSOP2(54) | 3.3 V | 100 MHZ | 0 C~+70 C |
| HY57V28420AT-S | TSOP2(54) | 3.3 V | 100 MHZ | 0 C~+70 C |
| HY57V28420HCT-P | TSOP2(54) | 3.3 V | 100 MHZ | 0 C~+70 C |
| HY57V28420HCT-S | TSOP2(54) | 3.3 V | 100 MHZ | 0 C~+70 C |
| HY57V28820ALT-P | TSOP2(54) | 3.3 V | 100 MHZ | 0 C~+70 C |
| HY57V28820ALT-S | TSOP2(54) | 3.3 V | 100 MHZ | 0 C~+70 C |
| HY57V28820AT-P | TSOP2(54) | 3.3 V | 100 MHZ | 0 C~+70 C |
| HY57V28820AT-S | TSOP2(54) | 3.3 V | 100 MHZ | 0 C~+70 C |
| HY57V28820HCT-P | TSOP2(54) | 3.3 V | 100 MHZ | 0 C~+70 C |