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| HB56A232 Series 2,097,152-word x 32-bit High Density Dynamic RAM Module Description The HB56A232 is a 2M x 32 dynamic RAM module, mounted 16 pieces of 4Mbit DRAM (HM514400CS/CLS) sealed in SOJ package. An outline of the HB56A232 is 72-pin single in-line package. Therefore, the HB56A232 makes high density mounting possible without surface mount technolgy. The HB56A232 provides common data inputs and outputs. Decoupling capacitors are mounted beneath each SOJ but only on the one side of its module board. 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 : 4.83 W/4.41 W/3.99 W (max) Standby mode : 168 mW (max) 8.4 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 HB56A232 Series Ordering Information Type No. HB56A232BW-6C HB56A232BW-7C HB56A232BW-8C HB56A232BW-6CL HB56A232BW-7CL HB56A232BW-8CL HB56A232SBW-6C HB56A232SBW-7C HB56A232SBW-8C HB56A232SBW-6CL HB56A232SBW-7CL HB56A232SBW-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 72-pin SIP socket type solder Package 72-pin SIP socket type Contact pad gold Note: The specification of this device is subject to change without notice. Please contact your nearest Hitachi's Sales Dept. regarding specification. 2 |
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