The figure below demonstrates the architecture of the STM32 and the SRAM blocks. The STM32F103ZE is a 144-pin MCU package and it provides a fully functional FSMC connection. This highly reliable process coupled with innovative circuit design techniques, yields high-performance and low power consumption devices”. It is fabricated using ISSI's high-performance CMOS technology. According to the IS62WV51216BLL-55TLI datasheet: “the ISSI IS62WV51216ALL/IS62WV51216BLL are highspeed, 8M bit static RAMs organized as 512K words by 16 bits. In this project, I decided to connect the IS62WV51216BLL-55TLI to the STM32F103ZE microcontroller. For the 100-pin and 144-pin STM32 packages, there is a possibility to easily connect an external SRAM to a bus named FSMC (flexible static memory controller). In some projects, such as using a graphical LCD by the StemWin (EmWin) library, the embedded STM32’s SRAM capacity might not be sufficient. Altium will never give your email address to any third party.Connecting a 512K*16bit SRAM (IS62WV51216BLL-55TLI) to a 144-Pin package STM32 microcontroller, using the FSMC bus You also acknowledge that by signing up to use CircuitMaker, you agree that Altium can send you occasional emails with news about CircuitMaker and our partner service, components, and reference designs. May 18th, 2022 A version of the Blue Pill STM32, a breadboard friendly development board with loads of features in a small form factor. Please refer to the exact terms of the GPL and LGPL at (Free Software Foundation) or (Open Source Initiative) regarding your rights under said licenses. By checking the “I agree” line below, you acknowledge that any project you post, including any design files and source code, will be public information and may be subject to one or more open source software or hardware licenses.

The projects created using CircuitMaker may include certain open source software or hardware designs originated from third parties that is subject to the GNU General Public License (GPL), GNU Library/Lesser General Public License (LGPL) and different and/or additional copyright licenses, disclaimers, and notices. They give the schematic and also the Altium's schematic (I am actually surprise because it's not useable if they don't give their lib), Anyway I can't find anywhere a library containing the STM32L475VGT6 schematic+footprint.

Stm32 altium library