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HM5316123B Series
131,072-word
×
16-bit Multiport CMOS Video RAM
The HM5316123B is a 2-Mbit multiport video
RAM equipped with a 128-kword
×
16-bit dynamic
RAM and a 256-word
×
16-bit SAM (full-sized
SAM). Its RAM and SAM operate independently
and asynchronously. The HM5316123B has
compatibility with the HM5316123.
Preliminary
E0160H10 (Ver. 1.0)
(Previous ADE-203-266 (Z))
Jun. 14, 2001
Features
• Bidirectional data transfer cycle between RAM
and SAM capability
• Split transfer cycle capability
• Block write mode capability
• Flash write mode capability
• 3 variations of refresh (8 ms/512 cycles)
–RAS-only refresh
–CAS-before-RAS refresh
–Hidden refresh
• TTL compatible
• Multiport organization
Asynchronous and simultaneous operation of
RAM and SAM capability
RAM: 128-kword
×
16-bit
SAM: 256-word
×
16-bit
• Access time
RAM: 70 ns/80 ns/100 ns (max)
SAM: 20 ns/23 ns/25 ns (max)
• Cycle time
RAM: 130 ns/150 ns/180 ns (min)
SAM: 25 ns/28 ns/30 ns (min)
• Low power
Active
RAM: 660 mW/605 mW/550 mW
SAM: 468 mW/413 mW/385 mW
Standby 38.5mW (max)
• Masked-write-transfer cycle capability
• Stopping column feature capability
• Persistent mask capability
• Byte write control capability: 2WE control
• Fast page mode capability
Cycle time: 45ns/50ns/55ns
Power RAM: 688 mW/660 mW/633 mW
• Mask write mode capability
Ordering Information
Type No.
Access time Package
———————————————————————
HM5316123BF-7
70ns
64-pin plastic
——————————————
shrink SOP
HM5316123BF-8
80ns
(FP-64DS)
——————————————
HM5316123BF-10
100ns
———————————————————————
Preliminary: This document contains information on a new
product. Specifications and information contained herein
are subject to change without notice.
Elpida Memory, Inc. is a joint venture DRAM company of NEC corporation and Hitachi, Ltd.
ELPIDA [ ELPIDA MEMORY ]
