AK5816384S / AK5816384G 16,777,216 Word by 8 Bit CMOS Dynamic Random Access Memory ACCUTEK DESCRIPTION Front View 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. 30-Pin SIM 30 1 30-Pin SIP 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 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) · 4096 Cycle Refresh every 64mSEC · Each device (data bit) has common DQ lines with common CAS and RAS controls · 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 · CAS-before-RAS refresh · Operating free air temperature 0oC to 70oC · Downward compatible with AK584096, AK581024/481024, AK58256/48256 · Fast Page Mode · JEDEC standard pinout · TTL-Compatible Inputs and Outputs · 9 Bit version (with parity bit) also available · RAS-Only Refresh PIN NOMENCLATURE PIN ASSIGNMENT SYMBOL PIN # SYMBOL 1 Vcc 16 DQ5 2 CAS 17 A8 Column Address Strobe 3 DQ1 18 A9 Row Address Strobe 4 A0 19 A10 5 A1 20 DQ6 WE DQ1 - DQ8 Data In/Data Out A0 - A11 Address Inputs CAS RAS PIN # FUNCTIONAL DIAGRAM WE Write Enable 6 DQ2 21 Vcc 5v Supply 7 A2 22 Vss Vss Ground 8 A3 23 DQ7 NC No Connect MODULE OPTIONS Leadless SIM: AK5816384S Leaded SIP: AK5816384G 9 Vss 24 A11 10 DQ3 25 DQ8 11 A4 26 NC 12 A5 27 RAS 13 DQ4 28 NC 14 A6 29 NC 15 A7 30 Vcc MECHANICAL DIMENSIONS ORDERING INFORMATION Inches PART NUMBER CODING INTERPRETATION Position 1 2 3 4 5 6 7 8 1 0.815 0.785 0.425 0.375 .100 .060 0.325 0.275 0.815 0.785 0.100 TYP 1 1 0.100 TYP 3.525 3.475 3.100 3.090 0.024 0.016 30 0.200 MAX 0.053 0.047 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. 0.100 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 5 NEW PASTURE ROAD NEWBURYPORT, MA 01950-4040 PHONE: 978-465-6200 FAX: 978-462-3396 Email: [email protected] Internet: www.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.