DDR3 SDRAM Supplier in Taiwan
H2A404G1666J
4Gb (32Mx8Banksx16) DDR3 SDRAM
This synchronous device achieves high speed double-data-rate transfer rates of up to 1866 Mb/sec/pin (DDR3-1866) for general applications.
The chip is designed to comply with the following key DDR3 SDRAM features:
- posted CAS with additive latency,
- write latency = read latency -1,
- On Die Termination
- programmable driver strength data,
- seamless BL4 access.
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 differential data 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 and /CAS multiplexing style.
Latency (AL): 0, CL-1, CL-2 clock
Through ZQ pin (RZQ:240 ohm±1%)