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TM497FBK32R Datasheet(PDF) 1 Page - Texas Instruments |
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TM497FBK32R Datasheet(HTML) 1 Page - Texas Instruments |
1 / 12 page TM497FBK32R, TM497FBK32G 4194304 BY 32-BIT TM893GBK32R, TM893GBK32G 8388608 BY 32-BIT EXTENDED DATA OUT DYNAMIC RAM MODULES SMMS672 – FEBRUARY 1997 1 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 D Organization – TM497FBK32R/G: 4 194 304 x 32 – TM893GBK32R/G: 8 388 608 x 32 D Single 5-V Power Supply (±10% Tolerance) D 72-Pin Single-In-Line Memory Module (SIMM) for Use With Sockets D TM497FBK32R/G – Uses Eight 16M-Bit Dynamic Random-Access Memories (DRAMs) in Plastic Small-Outline J-Lead (SOJ) Packages D TM893GBK32R/G – Uses Sixteen 16M-Bit DRAMs in Plastic SOJ Packages D Long Refresh Period 32 ms (2 048 Cycles) D All Inputs, Outputs, Clocks Fully TTL-Compatible D 3-State Output D Common CAS Control for Eight Common Data-In and Data-Out Lines in Four Blocks D Extended Data Out (EDO) Operation With CAS-Before-RAS ( CBR ), RAS-Only, and Hidden Refresh D Presence Detect D Performance Ranges: ACCESS ACCESS ACCESS EDO TIME TIME TIME CYCLE tRAC tAA tCAC tHPC (MAX) (MAX) (MAX) (MIN) ’497FBK32R/G-50 50 ns 40 ns 20 ns 35 ns ’497FBK32R/G-60 60 ns 30 ns 15 ns 25 ns ’497FBK32R/G-70 70 ns 35 ns 18 ns 30 ns ’893GBK32R/G-50 50 ns 40 ns 20 ns 35 ns ’893GBK32R/G-60 60 ns 30 ns 15 ns 25 ns ’893GBK32R/G-70 70 ns 35 ns 18 ns 30 ns D Low Power Dissipation D Operating Free-Air Temperature Range 0 °C to 70°C D Gold-Tabbed Version Available:† TM497FBK32G, TM893GBK32G D Tin-Lead (Solder-) Tabbed Version Available: TM497FBK32R, TM893GBK32R description The TM497FBK32R/G, designed as 4 × 4 194304 × 8-bits, is a 16M-byte, 72-pin, leadless, single-in-line memory module (SIMM). The SIMM is composed of eight (8) TMS417409DJs, 4 194 304 × 4-bit DRAMs, each in 24/26-lead, plastic, small-outline J-lead (SOJ) packages mounted on a substrate with decoupling capacitors. See the TMS417409A data sheet (literature number SMKS893) for timing diagrams. The TM497FBK32R/G SIMM is available in the single-sided BK leadless module for use with sockets. The TM497FBK32R/G features RAS access times of 50, 60, and 70 ns. This device is designed for operation from 0 °C to 70°C. The TM893GBK32R/G, designed as 4 × 8 388608 × 8-bits, is a 32M-byte, 72-pin, leadless SIMM. The SIMM is composed of sixteen TMS417409DJs, 4 194 304 × 4-bit DRAMs, each in 24/26-lead, plastic, small-outline J-lead (SOJ) packages mounted on a substrate with decoupling capacitors. See the TMS417409A data sheet (literature number SMKS893) for timing diagrams. The TM893GBK32R/G SIMM is available in the double-sided BK leadless module for use with sockets. The TM893GBK32R/G features RAS access times of 50, 60, and 70 ns. This device is characterized for operation from 0 °C to 70°C. operation The TM497FBK32R / G operates as eight TMS417409DJs connected as shown in the functional block diagram of TM497RBK32R/G and in Table 1. The common I/O feature dictates the use of early write cycles to prevent contention on D and Q. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. † Part numbers in this data sheet are for the gold-tabbed version; the information applies to both gold-tabbed and solder-tabbed versions. Copyright © 1997, Texas Instruments Incorporated |
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