ESP-PSRAM64H Chip - 64 Mbit Serial Pseudo SRAM - 3.3V 133 MHz
Brand: Adafruit
The ESP-PSRAM64H is a 64 Mbit (8 Megabyte) serial pseudo SRAM device, organized in 8 M x 8 bits and in a compact SOIC-8 package. It is fabricated using the high-performance and high-reliability CMOS technology and can operates at 3.3V and can support up to 133 MHz clock rate. Note, however, that burst operations which cross page boundaries have a lower max input clock frequency at 84 MHz.
$3.50 AUD, inc GST