| Part name | Description | Manufacturer | Package | Pins | Temp. Range | PDF datasheet |
| IDT71256S25LB | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | LCC | 32 | -55°C | 125°C | IDT71256S25LB datasheet (78K) |
| IDT71256S25P | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | DIP | 28 | 0°C | 70°C | IDT71256S25P datasheet (78K) |
| IDT71256S25PB | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | DIP | 28 | -55°C | 125°C | IDT71256S25PB datasheet (78K) |
| IDT71256S25TD | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | CERDIP | 28 | 0°C | 70°C | IDT71256S25TD datasheet (78K) |
| IDT71256S25TDB | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | CERDIP | 28 | -55°C | 125°C | IDT71256S25TDB datasheet (78K) |
| IDT71256S25Y | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | SOJ | 28 | 0°C | 70°C | IDT71256S25Y datasheet (78K) |
| IDT71256S25YB | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | SOJ | 28 | -55°C | 125°C | IDT71256S25YB datasheet (78K) |
| IDT71256S30DB | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | CERDIP | 28 | -55°C | 125°C | IDT71256S30DB datasheet (78K) |
| IDT71256S30LB | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | LCC | 32 | -55°C | 125°C | IDT71256S30LB datasheet (78K) |
| IDT71256S30PB | CMOS static RAM 256K (32K x 8-bit) | Integrated Device Technology, Inc. | DIP | 28 | -55°C | 125°C | IDT71256S30PB datasheet (78K) |
