Accutek Microcircuit Corporation AK5916384S / AK5916384G 16,777,216 Word by 9 Bit CMOS Dynamic Random Access Memory DESCRIPTION Front View 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. FEATURES 30-Pin SIM 30 1 30-Pin SIP 1 · Downward compatible with AK594096, AK591024, and AK59256 · TTL-Compatible Inputs and Outputs · RAS-Only Refresh · 16,777,216 x 9 bit organization · 4096 Cycle Refresh every 64mSEC · Optional 30 Pad leadless SIM (Single In-Line Module) or 30 Pin leaded SIP (Single In-Line Package) · JEDEC standard pinout · Power: 4.45 Watt Max Active (60 nS) 3.96 Watt Max Active (70 nS) 49.5 mWatt Max Standby · Common CAS and RAS control for the lower eight bits · Operating free air temperature 0oC to 70oC · Separate PCAS control for D9 and Q9 · Fast Page Mode · CAS-before-RAS refresh PIN NOMENCLATURE DQ1 - DQ8 Data In/Data Out · 8 Bit version (without parity bit) also available PIN ASSIGNMENT FUNCTIONAL DIAGRAM PIN # SYMBOL PIN # SYMBOL 1 Vcc 16 DQ5 2 CAS 17 A8 D9 Data In Q9 Data Out 3 DQ1 18 A9 A0 - A11 Address Inputs 4 A0 19 A10 CAS, PCAS Column Address Strobe DQ6 RAS 5 A1 20 6 DQ2 21 WE Row Address Strobe 7 A2 22 Vss WE Write Enable 8 A3 23 DQ7 Vcc 5v Supply Vss NC 9 Vss 24 A11 10 DQ3 25 DQ8 Ground 11 A4 26 Q9 No Connect 12 A5 27 RAS 13 DQ4 28 PCAS 14 A6 29 D9 15 A7 30 Vcc MODULE OPTIONS Leadless SIM: AK5916384S Leaded SIP: AK5916384G 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: AK5916384SP-70 16 Meg x 9, 70 nSEC, Leadless SIM, Fast Page Mode AK5916384GP-60 16 Meg x 9, 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: [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.