Found 10 alternatives for CY7C199N-20PXC by Rochester Electronics, LLC. Memory — 28-DIP (0.300", 7.62mm).
IC FRAM 256KBIT PARALLEL 28DIP
IC NVSRAM 64KBIT PARALLEL 28DIP
STANDARD SRAM, 32KX8, 35NS
NON-VOLATILE SRAM, 8KX8, 55NS PD
IC SRAM 256KBIT PARALLEL 28DIP
IC SRAM 256KBIT PARALLEL 28DIP
IC SRAM 64KBIT PARALLEL 28DIP
7164L - STATIC RAM 64K (8K X 8-B
IC SRAM 64KBIT PARALLEL 28DIP
IC SRAM 256KBIT PARALLEL 28DIP