MT46V16M16-75C Integrated Circuit Chip DOUBLE DATA RATE DDR SDRAM integrated circuits ics electronic integrated circuit

DOUBLE DATA RATE (DDR) SDRAM

FEATURES

• 167 MHz Clock, 333 Mb/s/p data rate

• VDD = +2.5V ±0.2V, VDDQ = +2.5V ±0.2V

• Bidirectional data strobe (DQS) transmitted/ received with data, i.e., source-synchronous data capture (x16 has two - one per byte)

• Internal, pipelined double-data-rate (DDR) architecture; two data accesses per clock cycle

• Differential clock inputs (CK and CK#)

• Commands entered on each positive CK edge

• DQS edge-aligned with data for READs; centeraligned with data for WRITEs

• DLL to align DQ and DQS transitions with CK

• Four internal banks for concurrent operation

• Data mask (DM) for masking write data (x16 has two - one per byte)

• Programmable burst lengths: 2, 4, or 8

• Concurrent Auto Precharge option supported

• Auto Refresh and Self Refresh Modes

• FBGA package available

• 2.5V I/O (SSTL_2 compatible)

• t RAS lockout (t RAP = t RCD)

• Backwards compatible with DDR200 and DDR266

DDR333 COMPATIBILITY

DDR333 meets or surpasses all DDR266 timing requirements thus assuring full backwards compatibility with current DDR designs. In addition, these devices support concurrent auto-precharge and t RAS lockout for improved timing performance. The 256Mb, DDR333 device will support an (t REFI) average periodic refresh interval of 7.8us

STOCK LIST