64k, 256k Dynamic Ram Controller/drivers - National Semiconductor

The DP84300 DP84412 DP84512 DP84322 DP84422 DP84522 DP84432 DP84532 DP8400-2 DP8400-4 DP8402A represent a family of 256k DRAM Controller/Drivers which are designed to provide No-Waitstate CPU Interface to Dynamic RAM arrays of up to 2 Mbytes and larger. Each device offers slight functional variations of the DP8419 design which are tailored for differ- ent system requirements. All family members are fabricated using Nationals new oxide isolated Advanced Low power Schottky (ALS) process and use design techniques which enable them to significantly out-perform all other LSI or dis- crete alternatives in speed, level of integration, and power consumption. Each device integrates the following critical 256k DRAM controller functions on a single monolithic device: ultra pre- cise delay line; 9-bit refresh counter; fall-through row, col- umn, and bank select input latches; Row/Column address muxing logic; on-board high capacitive-load RAS, CAS, and Write Enable & Address output drivers; and, precise control signal Timing for all the above. There are four device options of the basic DP8419 Control- ler. The DP8417 is pin and function compatible with the DP8419 except that its outputs are TRI-STATE. The DP8418 changes one pin and is specifically designed to offer an optimum Interface to 32 bit Microprocessors The DP8419X is functionally identical to the DP8419, but is avail- able in a 52-pin DIP package which is upward pin compati- ble with Nationals new DP8429D 1 Mbit DRAM Controller/ Driver. By National Semiconductor Corporation
DP8417 's PackagesDP8417 's pdf datasheet
DP84300
DP84412
DP84512
DP84322
DP84422
DP84522
DP84432
DP84532
DP8400-2
DP8400-4




DP8417 Pinout, Pinouts
DP8417 pinout,Pin out
This is one package pinout of DP8417,If you need more pinouts please download DP8417's pdf datasheet.

DP8417 circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

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