The 4Gb DDR4 SDRAM is organized as 32Mbit x8 I/Os x 16banks device. This synchronous device achieves high speed double-data-rate transfer rates of up to 2400Mb/sec/ pin (DDR4-2400) for general applications.
The chip is designed to comply with the following key DDR4 SDRAM features such as posted CAS, Programmable CWL, Internal (Self) Calibration, On Die Termination using ODT pin and Asynchronous Reset.
All of the control and address inputs are synchronized with a pair of externally supplied differential clocks. Inputs are latched at the cross point of differential clocks (CK rising and CK falling). All I/Os are synchronized with a pair of bidirectional strobes (DQS and DQS) in a source synchronous fashion. The address bus is used to convey row, column, and bank address information in a RAS/CAS multiplexing style.
The DDR4 device operates with a single 1.2V (1.14V~1.26V) power supply and 1.2V (1.14V~1.26V). The 4Gb DDR4 device is available in 78ball FBGAs.