Hitachi HB56A132
The HB56A132 is a 1 M × 32 dynamic RAM module, mounted 8 pieces of (4-Mbit) DRAM (HM514400CS/CLS) sealed in SOJ package. The HB56A132 provides common data inputs and outputs. An outline of the HB56A132 is 72-pin single in-line package.DESCRIPTION
Therefore, the HB56A132 makes high density mounting possible without surface mount technology. Decoupling capacitors are mounted beneath each SOJ.FEATURES
● 72-pin single in-line package — Lead pitch: 1.27 mm● Single 5 V (± 5%) supply
● High speed — Access time: 60 ns/70 ns/80 ns (max)
● Low power dissipation — Active mode: 4.62W/4.20W/3.78W (max) — Standby mode: 84 mW (max) 4.2 mW (max) (L-version)
● Fast page mode capability
● 1,024 refresh cycle: 16 ms 128 ms (L-version)
● 2 variations of refresh — RAS only refresh — CAS before RAS refresh
● TTL compatible HB56A132 Series Ordering Information Type No. HB56A132BW-6C HB56A132BW-7C HB56A132BW-8C HB56A132BW-6CL HB56A132BW-7CL HB56A132BW-8CL HB56A132BU-6C HB56A132BU-7C HB56A132BU-8C HB56A132BU-6CL HB56A132BU-7CL HB56A132BU-8CL HB56A132SBW-6C HB56A132SBW-7C HB56A132SBW-8C HB56A132SBW-6CL HB56A132SBW-7CL HB56A132SBW-8CL Access time 60 ns 70 ns 80 ns 60 ns 70 ns 80 ns 60 ns 70 ns 80 ns 60 ns 70 ns 80 ns 60 ns 70 ns 80 ns 60 ns 70 ns 80 ns Package 72-pin SIP socket type Contact pad gold 72-pin SIP socket type solder 2 Pin Arrangement HB56A132 Series Pin No.