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TM248CBK32U-70 PDF预览

TM248CBK32U-70

更新时间： 2024-01-30 03:48:52
品牌 Logo 应用领域
德州仪器 - TI 动态存储器内存集成电路
页数 文件大小 规格书
9页 128K
描述
2MX32 FAST PAGE DRAM MODULE, 70ns, SMA72, SIMM-72

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TM248CBK32U-70 技术参数

生命周期：Obsolete零件包装代码：SIMM
包装说明：SIMM,针数：72
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.32.00.02风险等级：5.84
访问模式：FAST PAGE最长访问时间：70 ns
其他特性：RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESHJESD-30 代码：R-XSMA-N72
内存密度：67108864 bit内存集成电路类型：FAST PAGE DRAM MODULE
内存宽度：32功能数量：1
端口数量：1端子数量：72
字数：2097152 words字数代码：2000000
工作模式：ASYNCHRONOUS最高工作温度：70 °C
最低工作温度：组织：2MX32
封装主体材料：UNSPECIFIED封装代码：SIMM
封装形状：RECTANGULAR封装形式：MICROELECTRONIC ASSEMBLY
认证状态：Not Qualified最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：4.5 V标称供电电压 (Vsup)：5 V
表面贴装：NO技术：CMOS
温度等级：COMMERCIAL端子形式：NO LEAD
端子位置：SINGLEBase Number Matches：1

TM248CBK32U-70 数据手册

 浏览型号TM248CBK32U-70的Datasheet PDF文件第2页浏览型号TM248CBK32U-70的Datasheet PDF文件第3页浏览型号TM248CBK32U-70的Datasheet PDF文件第4页浏览型号TM248CBK32U-70的Datasheet PDF文件第5页浏览型号TM248CBK32U-70的Datasheet PDF文件第6页浏览型号TM248CBK32U-70的Datasheet PDF文件第7页 
TM124BBK32F, TM124BBK32U 1048576 BY 32-BIT DYNAMIC RAM MODULE  
TM248CBK32F, TM248CBK32U 2097152 BY 32-BIT DYNAMIC RAM MODULE  
SMMS649A – DECEMBER 1994 – REVISED JUNE 1995  
Organization  
Presence Detect  
TM124BBK32F . . . 1 048 576 × 32  
TM248CBK32F . . . 2 097 152 × 32  
Performance Ranges:  
ACCESS ACCESS ACCESS READ  
TIME  
TIME  
TIME  
OR  
Single 5-V Power Supply (±10% Tolerance)  
t
t
t
WRITE  
CYCLE  
(MIN)  
RAC  
AA  
CAC  
72-Pin Single-In-Line Memory Module  
(SIMM) for Use With Socket  
(MAX)  
’124BBK32F-60 60 ns  
’124BBK32F-70 70 ns  
’124BBK32F-80 80 ns  
’248CBK32F-60 60 ns  
’248CBK32F-70 70 ns  
’248CBK32F-80 80 ns  
(MAX)  
30 ns  
35 ns  
40 ns  
30 ns  
35 ns  
40 ns  
(MAX)  
15 ns  
18 ns  
20 ns  
15 ns  
18 ns  
20 ns  
110 ns  
130 ns  
150 ns  
110 ns  
130 ns  
150 ns  
TM124BBK32F – Utilizes Two 16-Megabit  
DRAMs in Plastic Small-Outline J-Lead  
(SOJ) Packages  
TM248CBK32F – Utilizes Four 16-Megabit  
DRAMs in Plastic Small-Outline J-Lead  
(SOJ) Packages  
Low Power Dissipation  
Long 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:  
– TM124BBK32F  
– TM248CBK32F  
3-State Output  
Common CAS Control for Eight Common  
Data-In and Data-Out Lines in Four Blocks  
Tin-Lead (Solder) Tabbed Versions  
Available:  
Enhanced Page-Mode Operation With  
CAS-Before-RAS (CBR), RAS-Only, and  
Hidden Refresh  
– TM124BBK32U  
– TM248CBK32U  
description  
TM124BBK32F  
The TM124BBK32F is a 32-megabit dynamic random-access memory (DRAM) organized as four times  
1048576 × 8 in a 72-pin SIMM. The SIMM is composed of two TMS418160DZ, 1 048 576 × 16-bit DRAMs, each  
in a 42-lead plastic SOJ package mounted on a substrate with decoupling capacitors. The TMS418160DZ is  
described in the TMS418160 data sheet. The TM124BBK32F SIMM is available in the single-sided BK-leadless  
module for use with sockets.  
TM248CBK32F  
The TM248CBK32F is a 64-megabit DRAM organized as four times 2 097 152 × 8 in a 72-pin SIMM. The SIMM  
is composed of four TMS418160DZ, 1 048 576 × 16-bit DRAMs, each in a 42-lead plastic SOJ package  
mounted on a substrate with decoupling capacitors. The TMS418160DZ is described in the TMS418160 data  
sheet. The TM248CBK32F SIMM is available in the double-sided BK-leadless module for use with sockets.  
operation  
The TM124BBK32F operates as two TMS418160DZs connected as shown in the functional block diagram and  
Table 1. The TM248CBK32F operates as four TMS418160DZs connected as shown in the functional block  
diagram and Table 1. The common I/O feature 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 655303 • DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443  
1234567...9

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