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DS1647-150 PDF预览

DS1647-150

更新时间: 2024-11-26 19:59:47
品牌 Logo 应用领域
美信 - MAXIM 静态存储器光电二极管
页数 文件大小 规格书
11页 368K
描述
Non-Volatile SRAM, 512KX8, 150ns, CMOS, PDIP32

DS1647-150 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:MODULE针数:28
Reach Compliance Code:not_compliant风险等级:5.81
最长访问时间:150 nsJESD-30 代码:R-PDIP-T32
JESD-609代码:e0内存密度:4194304 bit
内存集成电路类型:NON-VOLATILE SRAM内存宽度:8
端子数量:32字数:524288 words
字数代码:512000最高工作温度:70 °C
最低工作温度:组织:512KX8
封装主体材料:PLASTIC/EPOXY封装代码:DIP
封装等效代码:DIP32,.6封装形状:RECTANGULAR
封装形式:IN-LINE电源:5 V
认证状态:Not Qualified最大待机电流:0.004 A
子类别:SRAMs最大压摆率:0.095 mA
标称供电电压 (Vsup):5 V表面贴装:NO
技术:CMOS温度等级:COMMERCIAL
端子面层:Tin/Lead (Sn/Pb)端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
Base Number Matches:1

DS1647-150 数据手册

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DS1647/DS1647P  
Nonvolatile Timekeeping RAM  
www.dalsemi.com  
FEATURES  
PIN ASSIGNMENT  
§ Integrated NV SRAM, real time clock,  
crystal, power-fail control circuit and lithium  
energy source  
§ Clock registers are accessed identical to the  
static RAM. These registers are resident in  
the eight top RAM locations  
§ Totally nonvolatile with over 10 years of  
operation in the absence of power  
§ Access time of 120 ns and 150 ns  
§ BCD coded year, month, date, day, hours,  
minutes, and seconds with leap year  
compensation valid up to 2100  
A18  
A16  
A14  
A12  
A7  
1
32  
31  
VCC  
A15  
A17  
WE  
A13  
A8  
2
3
4
30  
29  
5
6
28  
27  
A6  
A5  
A9  
7
8
26  
25  
A11  
OE  
A10  
CE  
A4  
A3  
A2  
A1  
9
10  
24  
23  
11  
12  
22  
21  
DQ7  
DQ6  
A0  
13  
14  
15  
16  
20  
19  
18  
17  
DQ0  
DQ1  
DQ2  
DQ5  
DQ4  
DQ3  
§ Power-fail write protection allows for ±10%  
VCC power supply tolerance  
GND  
§ DS1647 only (DIP Module)  
512K X 8  
32-PIN ENCAPSULATED PACKAGE  
-
Upward compatible with the DS1646  
Timekeeping RAM  
-
Standard JEDEC Byte-wide 512k x 8  
static RAM pinout  
34  
33  
32  
31  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
A18  
A17  
A14  
1
2
3
NC  
A15  
A16  
§ DS1647P only (PowerCap Module Board)  
-
Surface mountable package for direct  
connection to PowerCap containing  
battery and crystal  
A13  
A12  
A11  
4
5
6
PFO  
VCC  
WE  
A10  
7
OE  
A9  
8
CE  
A8  
9
DQ7  
-
-
Replaceable battery (PowerCap)  
Power-fail output  
A7  
A6  
A5  
A4  
A3  
A2  
A1  
A0  
10  
11  
12  
13  
14  
15  
16  
17  
DQ6  
DQ5  
DQ4  
DQ3  
DQ2  
DQ1  
DQ0  
GND  
- Pin-for-pin compatible with other  
densities of DS164XP Timekeeping  
RAM  
VBAT X2  
X1 GND  
34-PIN POWERCAP MODULE BOARD  
(USES DS9034PCX POWERCAP)  
ORDERING INFORMATION  
DS1647-XXX  
(28-pin DIP module)  
-120  
-150  
120 ns access  
150 ns access  
*DS1647P-XXX  
(34-pin PowerCap Module  
Board)  
-120  
-150  
120 ns access  
150 ns access  
*DS9034PCX  
(Power Cap) Required;  
must be ordered separately  
1 of 11  
080299  

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