From old datasheet system High-Reliability cmos 1024-word x 1-bit Static RAM 高可靠性的cmos 1024字1位静态存储器 High-Reliability cmos 1024-word x 1-bit Static RAM 1K X 1 STANDARD SRAM, 255 ns, CDIP16
65,536-word × 16-bit or 131,072-word × 8-bit STATIC RAM 1,048,576-word × 16-bit or 2,097,152-word × 8-bit One Time PROM(64k字6位或128k字位静态RAM 1M字6位或2M字OTPROM)