DESCRIPTION

The ICSI IC41C16257 and the IC41LV16257 are 262,144 x 16-bit high-performance CMOS Dynamic Random Access Memory. 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-, 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), Hidden

• Self Refresh Mode: 512 cycles/64 ms (S version only)

• JEDEC standard pinout

• Single power supply:

— 5V ± 10 (IC41C16257)

— 3.3V ± 10 (IC41LV16257)

• Byte Write and Byte Read operation via two CAS

• Available in 40-pin SOJ and TSOP-2