| Part name | Description | Manufacturer | Package | Pins | Temp. Range | PDF datasheet |
| IDT71256S150PB | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | DIP | 28 | -55°C | 125°C | IDT71256S150PB datasheet (78K) |
| IDT71256S150TDB | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | CERDIP | 28 | -55°C | 125°C | IDT71256S150TDB datasheet (78K) |
| IDT71256S150YB | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | SOJ | 28 | -55°C | 125°C | IDT71256S150YB datasheet (78K) |
| IDT71256S20D | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | CERDIP | 28 | 0°C | 70°C | IDT71256S20D datasheet (78K) |
| IDT71256S20L | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | LCC | 32 | 0°C | 70°C | IDT71256S20L datasheet (78K) |
| IDT71256S20TD | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | CERDIP | 28 | 0°C | 70°C | IDT71256S20TD datasheet (78K) |
| IDT71256S20Y | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | SOJ | 28 | 0°C | 70°C | IDT71256S20Y datasheet (78K) |
| IDT71256S25D | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | CERDIP | 28 | 0°C | 70°C | IDT71256S25D datasheet (78K) |
| IDT71256S25DB | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | CERDIP | 28 | -55°C | 125°C | IDT71256S25DB datasheet (78K) |
| IDT71256S25L | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | LCC | 32 | 0°C | 70°C | IDT71256S25L datasheet (78K) |
