SM55161A ram equivalent, 262144 x 16 bit vram multiport video ram.
* Organization:
– DRAM: 262 144 by 16 Bits
– SAM: 512 by 16 Bits
* Dual-Port Accessibility
– Simultaneous and Asyn.
not requiring real-time register load (for example, loads done during CRT-retrace periods), the full-register mode of op.
PIN A0-A8 CASL, CASU DQ0-DQ15 DSF NC/GND DESCRIPTION Address inputs Column-Address Strobe/Byte Selects DRAM Data I/O, Write Mask Data Special Function Select Special-Function Select No Connect/Ground (NOTE: Not connected internally to VSS) Special-F.
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