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Mikroelektronika d.o.o.

DRAM Click Board

DRAM Click Board

SKU: MIKROE-5337
Regular price
€13,95 EUR exc tax
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€13,95 EUR exc tax
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Key Features

  • Low power consumption, SPI/QPI with SDR mode, high performance, organized as 8M x 8bits, page size of 1024 bytes, self-managed refresh mechanism, software reset, and more
  • Based on the APS6404L-3SQR - 64Mb PSRAM (Pseudo-SRAM) memory from AP Memory
  • Can be used for low-power and low-cost portable applications
  • mikroBUS: SPi and QSPI Interfaces
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Overview

Introducing the DRAM Click Board™

Upgrade your device's memory with the DRAM Click Board™, a compact add-on board representing a dynamic random-access memory solution. This board features the APS6404L-3SQR, 64Mb high-performance SPI/QPI PSRAM memory organized as 8M x 8 bits each from AP Memory.

High Performance and Low Power Consumption

The Pseudo-SRAM device of the DRAM Click Board™ features a high speed, low pin count interface and incorporates a seamless self-managed refresh mechanism to maximize the performance of memory read operation. With 4 SDR I/O pins and the ability to operate in SPI or QPI (quad peripheral interface) mode with frequencies up to 133 MHz, this Click board™ is most suitable for low-power and low-cost portable applications.

Simple Integration and Software Development

The DRAM Click Board™ is supported by a mikroSDK-compliant library, which includes functions that simplify software development. This Click board™ comes as a thoroughly tested product, ready to be used on a system equipped with the mikroBUS™ socket.

Upgrade your device's memory capabilities today with the DRAM Click Board™.

Details

How Does The DRAM Click Board™ Work?

The DRAM Click Board™ is based on the APS6404L-3SQR, a 64Mb PSRAM (Pseudo-Static RAM) memory with an SPI/QPI interface from AP Memory. Organized as 8M x 8 bits each, this memory also has a page size of 1024 bytes alongside high speed and high performance. It also incorporates a seamless self-managed refresh mechanism specially designed to maximize the performance of memory read operation (it does not require the support of DRAM refresh from the system host). It is most suitable for low-power and low-cost portable applications.

DRAM Click inner

The APS6404L-3SQR communicates with MCU using the SPI serial interface that also supports Quad SPI and the two most common modes, SPI Mode 0 (QSPI Mode 1), with a maximum SPI frequency of 133MHz. The APS6404L-3SQR includes an on-chip voltage sensor used to start the self-initialization process. When the main power supply voltage reaches a stable level at or above the minimum supply voltage level, the device will require 150μs and user-issued RESET Operation to complete its self-initialization process. The device powers up in SPI Mode by default configuration but can also be switched into QPI mode. Besides, it is required to have a CS pin on a high logic level before beginning any operations.

The DRAM Click Board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. However, the Click board™ comes equipped with a library containing functions and an example code that can be used, as a reference, for further development.

SPECIFICATIONS

Type DRAM
Applications Can be used for low-power and low-cost portable applications
On-board modules APS6404L-3SQR - 64Mb PSRAM (Pseudo-SRAM) memory from AP Memory
Key Features Low power consumption, SPI/QPI with SDR mode, high performance, organized as 8M x 8bits, page size of 1024 bytes, self-managed refresh mechanism, software reset, and more
Interface QSPI,SPI
Compatibility mikroBUS
Click board size S (28.6 x 25.4 mm)
Input Voltage 3.3V

PINOUT DIAGRAM

This table shows how the pinout of the DRAM Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes Pin Mikrobus logo.png Pin Notes
NC 1 AN PWM 16 IO2 QSPI IO2
QSPI IO3 IO3 2 RST INT 15 NC
SPI Chip Select CS 3 CS RX 14 NC
SPI Clock SCK 4 SCK TX 13 NC
SPI Data OUT / QSPI IO1 SDO 5 MISO SCL 12 NC
SPI Data IN / QSPI IO0 SDI 6 MOSI SDA 11 NC
Power Supply 3.3V 7 3.3V 5V 10 NC
Ground GND 8 GND GND 9 GND Ground

ONBOARD SETTINGS AND INDICATORS

Label Name Default Description
LD1 PWR - Power LED Indicator

DRAM CLICK ELECTRICAL SPECIFICATIONS

Description Min Typ Max Unit
Supply Voltage - 3.3 - V
Memory Size - - 64 Mb
Operating Temperature Range -25 +25 +85 °C

 

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