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| DESCRIPTION Accutek Microcircuit Corporation AK5816384S / AK5816384G 16,777,216 Word by 8 Bit CMOS Dynamic Random Access Memory Front View 30-Pin SIM The Accutek AK5816384 high density memory module is a CMOS DRAM organized in 16 Meg x 8 bit words. The assembly consists of eight 16 Meg x 1 DRAMs in plastic SOJ packages mounted to the front side of a printed circuit board in 30 pad SIM (leadless) or 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 AK5816384 is identical to eight 16 Meg x 1 DRAMs. The data input is tied to the 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. 1 30 30-Pin SIP 1 FEATURES * 16,777,216 x 8 bit organization * Optional 30 Pad leadless SIM (Single In-Line Module) or 30 Pin leaded SIP (Single In-Line Package) * JEDEC standard pinout * Each device (data bit) has common DQ lines with common CAS and RAS controls * CAS-before-RAS refresh * Downward compatible with AK584096, AK581024/481024, AK58256/48256 * TTL-Compatible Inputs and Outputs * RAS-Only Refresh * 4096 Cycle Refresh every 64mSEC * Power: 3.96 Watt Max Active (60 nS) 4.40 Watt Max Active (70 nS) 3.52 Watt Max Active (80 nS) 44 mWatt Max Standby * Fast Page Mode * 9 Bit version (with parity bit) also available * Operating free air temperature 0oC to 70oC PIN NOMENCLATURE DQ1 - DQ8 A0 - A11 CAS RAS WE Vcc Vss NC Data In/Data Out Address Inputs Column Address Strobe Row Address Strobe Write Enable 5v Supply Ground No Connect PIN ASSIGNMENT PIN # 1 2 3 4 5 6 7 8 9 10 11 SYMBOL Vcc CAS DQ1 A0 A1 DQ2 A2 A3 Vss DQ3 A4 A5 DQ4 A6 A7 PIN # 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 SYMBOL DQ5 A8 A9 A10 DQ6 WE Vss DQ7 A11 DQ8 NC RAS NC NC Vcc FUNCTIONAL DIAGRAM MODULE OPTIONS Leadless SIM: AK5816384S Leaded SIP: AK5816384G 12 13 14 15 ORDERING INFORMATION Position 1 MECHANICAL DIMENSIONS Inches 7 8 1 2 3 4 5 6 PART NUMBER CODING INTERPRETATION Product AK = Accutek Memory 2 Type 4 = Dynamic RAM 5 = CMOS Dynamic RAM 6 = Static RAM 3 Organization/Word Width 1 = by 1 16 = by 16 4 = by 4 32 = by 32 8 = by 8 36 = by 36 9 = by 9 4 Size/Bits Depth 64 = 64K 4096 = 4 MEG 256 = 256K 8192 = 8 MEG 1024 = 1 MEG 16384 = 16 MEG 5 Package Type G = Single In-Line Package (SIP) S = Single In-Line Module (SIM) D = Dual In-Line Package (DIP) W = .050 inch Pitch Edge Connect Z = Zig-Zag In-Line Package (ZIP) 6 Special Designation P = Page Mode N = Nibble Mode K = Static Column Mode W = Write Per Bit Mode V = Video Ram 7 Separator - = Commercial 00C to +700C M = Military Equivalent Screened (-550C to +1250C) I = Industrial Temperature Tested (-450C to +850C) X = Burned In 8 Speed (first two significant digits) DRAMS SRAMS 60 = 60 nS 8= 8 nS 70 = 70 nS 12 = 12 nS 80 = 80 nS 15 = 15 nS The numbers and coding on this page do not include all variations available but are shown as examples of the most widely used variations. Contact Accutek if other information is required. 0.815 0.785 0.425 0.375 .100 .060 0.100 TYP 0.815 0.785 0.325 0.275 1 1 0.100 TYP 3.100 3.090 3.525 3.475 0.024 0.016 30 0.053 0.047 0.200 MAX 0.100 TYP EXAMPLES: AK5816384SP-70 16 Meg x 8, 70 nSEC, Leadless SIM, Fast Page Mode AK5816384GP-60 16 Meg x 8, 60 nSEC, Leaded SIP, Fast Page Mode ACCUTEK MICROCIRCUIT CORPORATION BUSINESS CENTER at NEWBURYPORT 2 NEW PASTURE ROAD, SUITE 1 NEWBURYPORT, MA 01950-4054 PHONE: 978-465-6200 FAX: 978-462-3396 Email: accutek@seacoast.com Internet: accutekmicro.com Accutek Reserves the right to make changes in specifications at any time and without notice. Accutek does not assume any responsibility for the use of any circuitry described; no circuit patent licenses are implied. Preliminary data sheets contain minimum and maximum limits based upon design objectives, which are subject to change upon full characterization over the specific operating conditions. |
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