Description
The Hitachi HM5212325FBPC is a 128-Mbit SDRAM organized as 1048576-word ×32-bit ×4-bank. All inputs and outputs are referred to the rising edge of the clock input. It is packaged in standard 90-bump fine pitch BGA.

FEATUREs
•  Single chip wide bit solution (×32)
•  3.3 V power supply
•  Clock frequency: 100 MHz (max)
•  LVTTL interface
•  Extremely small foot print: 0.8 mm pitch Package: FBGA (BP-90)
•  4 banks can operate simultaneously and independently
•  Burst read/write operation and burst read/single write operation capability
•  Programmable burst length: 4/8/full page
•  2 variations of burst sequence
 Sequential (BL = 4/8/full page)
 Interleave (BL = 4/8)
•  Programmable CASlatency: 2/3
•  Byte control by DQMB
•  Refresh cycles: 4096 refresh cycles/64 ms
•  2 variations of refresh
 Auto refresh
 Self refresh
•  Full page burst length capability
 Sequential burst
 Burst stop capability