UPB429-1 is 2K x 8-BIT BIPOLA TTL PROM manufactured by NEC.
| Part Number | Description |
|---|---|
| UPB429-2 | 2K x 8-BIT BIPOLA TTL PROM |
| UPB429 | 2K x 8-BIT BIPOLA TTL PROM |
| UPB426 | 4K-BIT BIPOLAR TTL PROGRAMMABLE READ ONLY MEMORY |
| UPB426-1 | 4K-BIT BIPOLAR TTL PROGRAMMABLE READ ONLY MEMORY |
| UPB426-2 | 4K-BIT BIPOLAR TTL PROGRAMMABLE READ ONLY MEMORY |
On-chip address decoding, three chip enable inputs and open-collector/three-state outputs allow easy expansion of memory capacity. The JlPB409 and JlPB429 are fabricated with logic level zero (low); logic level one (high) can be electrically programmed into the selected bit locations.
