Use 64 Kbit Serial SRAM device with the development board or prototype device using the Serial RAM Board. This additional board features 23K640 Serial RAM device designed to communicate with a microcontroller via Serial Peripheral Interface (SPI). Using discrete I/O lines, the Serial RAM Board can be interfaced with a microcontroller with no built-in SPI port. It is equipped with on-board voltage translators that allow connection with systems operating at different voltage levels. The board is designed to support both 3.3V and 5V power supply. It has an LED indicator that tells about the power status of the board. Driven by low-power CMOS technology, this board works in three flexible operating modes: byte read and write, page mode (32 byte page) and sequential mode.
With these features, the SerialRAM Board is an excellent choice for depositing large amounts of temporary variables and acquisition data. It makes a great choice for increasing your microcontroller.
- Based on the 23K640 serial RAM with 64K bits of memory
- Serial SPI communication interface with fast data rates
- 8192 x 8-bit organization
- Designed to use both 3.3V and 5V power supply voltage
- Supported by all mikroElektronika compilers
- DIP switches for selection of communication lines
- Power indicator LED
- Maximum Clock Frequency: 20 MHz
- Low power CMOS technology (Read Current: 3 mA at 1 MHz; Standby Current: 4 uA Max. at +85
- Sequential Read/Write
- Operating temperature range: -40
- IDC10 connector to facilitate connection with peripheral modules
- RoHS compliant
IC/Module: 23K640 64K SPI Bus Low-Power SRAM
The 23K640 is a 64 Kbit SRAM device that access memory via a simple SPI compatible serial bus. The bus signals required are a clock input (SCK) with separate data in (SI) and data out (SO) lines. Access to the device is controlled through a Chip Select (CS) input. It has a hold pin (HOLD) to pause communication to the device.
The Serial RAM Board can be easily connected to a development system's port through a 2x5 connector CN1. It also has an on-board jumper J1 that can be set to appropriate positions to connect to 3.3V and 5V development system. The DIP switch is used to set which pins are used for MISO/MOSI/SCK, and the silkscreen marking describes the settings required for specific MikroElektronika development systems with a matching IDC10 header.
Serial RAM Board User Manual
- SerialRAM Board (1)