HM62W16255HCI Datasheet, PDF (1/17 Pages) Hitachi Semiconductor – Wide Temperature Range Version 4M High Speed SRAM (256-kword ´ 16-bit)

HM62W16255HCI Series
Wide Temperature Range Version
4M High Speed SRAM (256-kword × 16-bit)
ADE-203-1263A (Z)
Rev. 1.0
Nov. 1, 2001
Description
The HM62W16255HCI is a 4-Mbit high speed static RAM organized 256-kword × 16-bit. It has realized
high speed access time by employing CMOS process (6-transistor memory cell) and high speed circuit
designing technology. It is most appropriate for the application which requires high speed, high density
memory and wide bit width configuration, such as cache and buffer memory in system. The
HM62W16255HCI is packaged in 400-mil 44-pin SOJ and 400-mil 44-pin plastic TSOPII for high density
surface mounting.
Features
• Single 3.3 V supply: 3.3 V ± 0.3 V
• Access time: 12 ns (max)
• Completely static memory
 No clock or timing strobe required
• Equal access and cycle times
• Directly TTL compatible
 All inputs and outputs
• Operating current: 130 mA (max)
• TTL standby current: 40 mA (max)
• CMOS standby current: 5 mA (max)
• Center V_CC and V_SS type pinout
• Temperature range: –40 to +85°C