AK5916384S

MICROCIRCUIT CORPORATION DESCRIPTION The Accutek AK5916384S high density memory module is a CMOS random access memory organized in 16 Meg x 9 bit words. The assembly consists of nine 16 Meg x 1 DRAMs in plastic SOJ packages mounted on the front side of a printed circuit board in 30 pad SIM (leadless) or 30 pin SIP (leaded) configuration. The module is only 0.8 inch high (same height as standard 1 Meg modules), making it ideally suited for applications with low height restrictions. The operation of the AK5916384 is identical to nine 16 Meg x 1 dynamic RAMs. For the lower eight bits data input is tied to data output and brought out separately for each device, with common RAS, CAS and WE control. This common I/O feature dictates the use of early-write cycles to prevent contention of D and Q. Since the Write-Enable (WE) signal must always go low before CAS in a write cycle, Read-Write and Read-Modify-Write operation is not possible. For the ninth bit, the data input (D9) and the data output (Q9) pins are brought out separately and controlled by a separate PCAS for that bit. Bit nine is generally used for parity. Front View 30-Pin SIM ACCUTEK AK5916384S / AK5916384G 16,777,216 Word by 9 Bit CMOS Dynamic Random Access Memory 1 30 30-Pin SIP 1 · Downward compatible with AK594096, AK591024, and AK59256 · TTL-Compatible Inputs and Outputs · RAS-Only Refresh · 4096 Cycle Refresh every 64mSEC · Power: 4.45 Watt Max Active (60 nS) 3.96 Watt Max Active (70 nS) 49.5 mWatt Max Standb...