General Description
The A428316 is a new generation randomly accessed memory for graphics, organized in a 262,144-word by 16- bit configuration. This product can execute Byte Write and Byte Read operation via two CAS pins.
The A428316 offers an accelerated Fast Page Mode cycle with a feature called Extended Data Out (EDO).
This allow random access of up to 512 words within a row at a 83/62 MHz EDO cycle, making the A428316 ideally suited for graphics, digital signal processing and high performance computing systems.

FEATUREs
■ Organization: 262,144 words X 16 bits
■ Part Identification
    - A428316 (512 Ref.)
■ Single 5.0V power supply/built-in VBB generator
■ Low power consumption
    - Operating: 110mA (-25 max)
    - Standby: 2.5mA (TTL), 1.0mA (CMOS)
■ High speed
    - 25/35 ns RAS access time
    - 12/17 ns column address access time
    - 8/10 ns CAS access time
    - 12/16 ns EDO Page Mode Cycle Time
■ Industrial operating temperature range: -40°C to 85°C for -U
■ Fast Page Mode with Extended Data Out
■ Separate CAS (UCAS ,LCAS ) for byte selection
■ 512 Refresh Cycle in 8ms
■ Read-modify-write, RAS -only, CAS -before- RAS , Hidden refresh capability
■ TTL-compatible, three-state I/O
■ JEDEC standard packages
    - 400mil, 40-pin SOJ
    - 400mil, 40/44 TSOP type II package
■ All Pb-free (Lead-free) products are RoHS compliant