The RelChipTM RC2113209 is a synchronous 32Kx9 SRAM compatible with the RC10001 microcontroller.The memory is highly configurable, with options for parity, latency, and burst-mode. Eight-bit transfers reduce the number of IO connections required (compared to the RC2110836).
Parity, latency, and burst-mode are configurable through read/write registers. The memory is physically 9 bits wide to accommodate parity and the 9th data bit.
The ninth data bit/parity bit can be set to unused, 9th data bit, or parity. Parity options include none, even, odd, sticky, and parity error. The parity is calculated during a write and reported during a read. If the parity error mode is selected, this is checked during a read.
Latency can be set from one to eight cycles, and applies to the first read or write data cycle. In burst mode, four consecutive operations are performed per address cycle.