- WS57C128FB-55D
- E2v Technologies (uk), Ltd.
- 16K X 8 UVPROM, 55 ns, CDIP28
- WS57C128FB-55DMB
- E2v Technologies (uk), Ltd.
- 16K X 8 UVPROM, 55 ns, CDIP28
- WS57C128FB-55D
- Stmicroelectronics
- High Speed 16k x 8 CMOS EPROM
- WS57C128FB-55DMB
- Stmicroelectronics
- High Speed 16k x 8 CMOS EPROM
- WS57C128FB-55DMB
- Wsi Corporation
- MILITARY HIGH SPEED 16K x 8 CMOS EPROM