HM621400HC Series
4M High Speed SRAM (4-Mword × 1-bit)
ADE-203-1199 (Z) Preliminary Rev. 0.0 Nov. 30, 2000 Description
...
HM621400HC Series
4M High Speed SRAM (4-Mword × 1-bit)
ADE-203-1199 (Z) Preliminary Rev. 0.0 Nov. 30, 2000 Description
The HM621400HC is a 4-Mbit high speed static RAM organized 4-Mword × 1-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 and high density memory, such as cache and buffer memory in system. The HM621400HC is packaged in 400-mil 32-pin SOJ for high density surface mounting.
Features
Single 5.0 V supply: 5.0 V ± 10 % Access time: 10 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: 140 mA (max) TTL standby current: 40 mA (max)
CMOS standby current: 5 mA (max) : 1.2 mA (max) (L-version) Data retension current: 0.8 mA (max) (L-version) Data retension
voltage: 2 V (min) (L-version) Center VCC and VSS type pinout
Preliminary: The specification of this device are subject to change without notice. Please contact your nearest Hitachi’s Sales Dept. regarding specification.
HM621400HC Series
Ordering Information
Type No. HM621400HCJP-10 HM621400HCLJP-10 Access time 10 ns 10 ns Package 400-mil 32-pin plastic SOJ (CP-32DB)
2
HM621400HC Series
Pin Arrangement
32-pin SOJ A0 A1 A2 A3 A4 A5 CS VCC VSS Din WE A6 A7 A8 A9 A10 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 (Top view) 32 ...