Connecting 128KB SPI-RAM to Arduino Mega | 8 Bit Force
Diymore Soporte de batería para Arduino, 4MB SPI Flash 8MB RAM 0,96 "OLED USB a TTL Serial CP2104 Botón de cinco vías 18650|Circuitos integrados| - AliExpress
Envío Libre CDP68HC68T1M96 IC RTC RAM/SPI SERIAL 20 SOIC 68HC68 CDP68HC68 1 UNIDS|spi flash|spi gpiospi cam - AliExpress
Reloj en tiempo real (RTC) Maxim Integrated DS1305E+, Alarma, calendario 96B RAM, SPI, TSSOP, 20-Pines | RS
spi - External RAM (23LC1024) and external Flash (W25Q64JVSSIQ) with Sparkfun SAMD21 - Arduino Stack Exchange
VS23S010D-S (Tube), 1 Megabit SPI SRAM (128Kx8)
2 Mb density F-RAM rad-hardened for extreme environments
Serial SRAM and Serial NVSRAM | Microchip Technology
23A256 SPI RAM with Arduino Mega - Networking, Protocols, and Devices - Arduino Forum