DESCRIPTION
The ISSI IS41C16257 and the IS41LV16257 are 262,144 x 16-bit high-performance CMOS Dynamic Random Access Memories. Fast Page Mode allows 512 random accesses within a single row with access cycle time as short as 12 ns per 16-bit word. The Byte Write control, of upper and lower byte, makes these devices ideal for use in 16- and 32-bit wide data bus systems.

FEATURES
• Fast access and cycle time
• TTL compatible inputs and outputs
• Refresh Interval: 512 cycles/8 ms
• Refresh Mode: RAS-Only, CAS-before-RAS (CBR), and Hidden
• JEDEC standard pinout
• Single power supply:
    -- 5V ± 10% (IS41C16257)
    -- 3.3V ± 10% (IS41LV16257)
• Byte Write and Byte Read operation via two CAS
• Industrial temperature available