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TM248CBK32-80S PDF预览

TM248CBK32-80S

更新时间： 2024-09-24 13:14:51
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德州仪器 - TI /
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TM248CBK32-80S 数据手册

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TM124BBK32, TM124BBK32S 1048576 BY 32-BIT  
TM248CBK32, TM248CBK32S 2097152 BY 32-BIT  
DYNAMIC RAM MODULE  
SMMS132D – JANUARY 1991 – REVISED JUNE 1995  
Organization  
Performance Ranges:  
TM124BBK32 . . . 1 048 576 × 32  
TM248CBK32 . . . 2 097 152 × 32  
ACCESS  
TIME  
ACCESS  
TIME  
READ  
OR  
t
t
WRITE  
CYCLE  
(MIN)  
RAC  
CAC  
Single 5-V Power Supply (±10 % Tolerance)  
72-pin Single In-Line Memory Module  
(SIMM) for Use With Sockets  
(MAX)  
60 ns  
70 ns  
80 ns  
60 ns  
70 ns  
80 ns  
(MAX)  
15 ns  
18 ns  
20 ns  
15 ns  
18 ns  
20 ns  
TM124BBK32-60  
TM124BBK32-70  
TM124BBK32-80  
TM248CBK32-60  
TM248CBK32-70  
TM248CBK32-80  
110 ns  
130 ns  
150 ns  
110 ns  
130 ns  
150 ns  
TM124BBK32-Utilizes Eight 4-Megabit  
DRAMs in Plastic Small-Outline J-Lead  
(SOJ) Packages  
TM248CBK32-Utilizes Sixteen 4-Megabit  
DRAMs in Plastic Small-Outline J-Lead  
(SOJ) Packages  
Low Power Dissipation  
Distributed Refresh Period  
16 ms (1024 Cycles)  
Operating Free-Air-Temperature Range  
0°C to 70°C  
All Inputs, Outputs, Clocks Fully TTL  
Compatible  
†
Gold-Tabbed Versions Available:  
– TM124BBK32  
– TM248CBK32  
3-State Output  
Tin-Lead (Solder) Tabbed Versions  
Available:  
Common CAS Control for Eight Common  
Data-In and Data-Out Lines, In Four Blocks  
– TM124BBK32S  
– TM248CBK32S  
Presence Detect  
description  
TM124BBK32  
The TM124BBK32 is a dynamic random-access memory (DRAM) organized as four times 1048576 × 8 in a  
72-pin leadless single in-line memory module (SIMM). The SIMM is composed of eight TMS44400, 1048576  
× 4-bit DRAMs, each in 20/26-lead plastic SOJ packages, mounted on a substrate together with decoupling  
capacitors. Each TMS44400 is described in the TMS44400 data sheet.  
The TM124BBK32 is available in the single-sided BK leadless module for use with sockets.  
The TM124BBK32 features RAS access times of 60 ns, 70 ns and 80 ns. This device is rated for operation from  
0°C to 70°C  
TM248CBK32  
The TM248CBK32 is a dynamic random-access memory organized as four times 2097152 × 8 in a 72-pin  
leadless SIMM. The SIMM is composed of sixteen TMS44400, 1048576 × 4-bit dynamic RAMs, each in  
20/26-lead plastic SOJ packages SOJs, mounted on a substrate together with decoupling capacitors. Each  
TMS44400 is described in the TMS44400 data sheet.  
The TM248CBK32 is available in the double-sided BK leadless module for use with sockets.  
The TM248CBK32 features RAS access times of 60 ns, 70 ns and 80 ns. This device is rated for operation from  
0°C to 70°C  
operation  
TM124BBK32  
The TM124BBK32 operates as eight TMS44400DJs connected as shown in the functional block diagram. Refer  
to the TMS44400 data sheet for details of operation. The common I/O feature of the TM124BBK32 dictates the  
use of early write cycles to prevent contention on D and Q.  
†
Part numbers in this data sheet are for the gold-tabbed version; the information applies to both gold-tabbed and solder-tabbed versions.  
Copyright 1995, Texas Instruments Incorporated  
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.  
1
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443  
1234567...11

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与TM248CBK32-80S相关器件

型号 品牌 获取价格 描述 数据表
TM248CBK32F TI

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 		32-BIT DYNAMIC RAM MODULE
TM248CBK32F-60 TI

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 		2MX32 FAST PAGE DRAM MODULE, 60ns, SMA72, SIMM-72
TM248CBK32F-60L TI

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 		2MX32 FAST PAGE DRAM MODULE, 60ns, SMA72, SIMM-72
TM248CBK32F-70 TI

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 		2MX32 FAST PAGE DRAM MODULE, 70ns, SMA72, SIMM-72
TM248CBK32F-70L TI

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 		2MX32 FAST PAGE DRAM MODULE, 70ns, SMA72, SIMM-72
TM248CBK32F-80 TI

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 		2MX32 FAST PAGE DRAM MODULE, 80ns, SMA72, SIMM-72
TM248CBK32F-80L TI

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 		2MX32 FAST PAGE DRAM MODULE, 80ns, SMA72, SIMM-72
TM248CBK32H-50 TI

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 		暂无描述
TM248CBK32H-70 TI

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 		2MX32 FAST PAGE DRAM MODULE, 70ns, SMA72, SIMM-72
TM248CBK32I-50 TI

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 		2MX32 FAST PAGE DRAM MODULE, 50ns, SMA72, SIMM-72

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