IS61QDPB44M18A集成电路（IC）的存储器规格书PDF中文资料

FEATURES

 2Mx36 and 4Mx18 configuration available.

 On-chip Delay Locked Loop (DLL) for wide data valid window.

 Separate independent read and write ports with concurrent read and write operations.

 Synchronous pipeline read with late write operation.

 Double Data Rate (DDR) interface for read and write input ports.

 2.5 cycle read latency.

 Fixed 4-bit burst for read and write operations.

 Clock stop support.

 Two input clocks (K and K#) for address and control registering at rising edges only.

 Two echo clocks (CQ and CQ#) that are delivered simultaneously with data.

 Data Valid Pin (QVLD).

 +1.8V core power supply and 1.5, 1.8V VDDQ, used with 0.75, 0.9V VREF.

 HSTL input and output interface.

 Registered addresses, write and read controls, byte writes, data in, and data outputs.

 Full data coherency.

 Boundary scan using limited set of JTAG 1149.1 functions.

 Byte write capability.

 Fine ball grid array (FBGA) package

13mm x 15mm & 15mm x 17mm body size

165-ball (11 x 15) array

 Programmable impedance output drivers via 5x user-supplied precision resistor.

 ODT (On Die Termination) feature is supported optionally on data input, K/K#, and BWx#.

 The end of top mark (A/A1/A2) is to define options.

IS61QDPB42M36A : Don’t care ODT function and pin connection

IS61QDPB42M36A1: Option1

IS61QDPB42M36A2: Option2

Refer to more detail description at page 6 for each

ODT option.