ISSI 256K x 16 (4-MBIT) DYNAMIC RAM WITH FAST PAGE MODE
The ISSI IS41C16257 and IS41LV16257 are 262,144 x 16-bit high-performance CMOS Dynamic Random Access Memories optimized for high-speed bandwidth. These devices support Fast Page Mode allowing up to 512 random accesses within a single row with access cycle times as short as 12 ns per 16-bit word.
| Capacity | 262,144 x 16-bit (4-MBIT) |
|---|---|
| Refresh Interval | 512 cycles/8 ms |
| Supply Voltage (IS41C16257) | 5V ± 10% |
| Supply Voltage (IS41LV16257) | 3.3V ± 10% |
| Operating Temperature (Commercial) | 0 to +70 °C |
| Operating Temperature (Industrial) | -40 to +85 °C |
The devices support RAS-Only, CAS-before-RAS (CBR), and Hidden refresh modes.
Each bit is uniquely addressed through 18 address bits entered nine bits at a time.