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U62256SK07LL PDF预览

U62256SK07LL

更新时间: 2024-11-10 07:00:51
品牌 Logo 应用领域
赛普拉斯 - CYPRESS 静态存储器光电二极管
页数 文件大小 规格书
9页 79K
描述
Standard SRAM, 32KX8, 70ns, CMOS, PDSO28, 0.330 INCH, SOP-28

U62256SK07LL 技术参数

是否无铅: 含铅生命周期:Obsolete
零件包装代码:SOIC包装说明:SOP,
针数:28Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.32.00.41
风险等级:5.46最长访问时间:70 ns
JESD-30 代码:R-PDSO-G28JESD-609代码:e0
长度:18.1 mm内存密度:262144 bit
内存集成电路类型:STANDARD SRAM内存宽度:8
功能数量:1端子数量:28
字数:32768 words字数代码:32000
工作模式:ASYNCHRONOUS最高工作温度:85 °C
最低工作温度:-40 °C组织:32KX8
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
并行/串行:PARALLEL峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:2.54 mm
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:YES
技术:CMOS温度等级:INDUSTRIAL
端子面层:TIN LEAD端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:8.75 mm
Base Number Matches:1

U62256SK07LL 数据手册

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U62256  
Standard 32K x 8 SRAM  
Description  
Features  
falling edge of W, or by the rising  
edge of E, respectively.  
F 32768x8 bit static CMOS RAM  
F Access times 70 ns, 100 ns  
F Common data inputs and  
data outputs  
F Three-state outputs  
F Typ. operating supply current  
70 ns: 50 mA  
The U62256 is a static RAM manu-  
factured using a CMOS process  
technology with the following ope-  
rating modes:  
Data retention is guaranteed down  
to 2 V. With the exception of E, all  
inputs consist of NOR gates, so  
that no pull-up/pull-down resistors  
are required.  
- Read  
- Write  
- Standby  
- Data Retention  
The memory array is based on a  
6-transistor cell.  
100 ns: 40 mA  
F TTL/CMOS-compatible  
F Automatical reduction of power  
dissipation in long Read Cycles  
The circuit is activated by the fal-  
ling edge of E. The address and  
control inputs open simultaneously.  
According to the information of W  
and G, the data inputs, or outputs,  
are active. In a Read cycle, the  
data outputs are activated by the  
falling edge of G, afterwards the  
data word read will be available at  
the outputs DQ0-DQ7. After the  
address change, the data outputs  
go High-Z until the new information  
read is available. The data outputs  
have not preferred state.  
+
F Power supply voltage 5 V 10 %  
F Operating temperature ranges  
0 to 70 °C  
-40 to 85 °C  
F CECC 90000 Quality Standard  
F ESD protection > 2000 V  
(MIL STD 883C M3015.7)  
F Latch-up immunity >100 mA  
F Package: SOP28 (330 mil)  
The Read cycle is finished by the  
Pin Configuration  
Pin Description  
1
VCC  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
A14  
A12  
A7  
2
W
3
A13  
A8  
4
A6  
Signal Name Signal Description  
5
A9  
A5  
A0 - A14  
Address Inputs  
Data In/Out  
6
A11  
A4  
DQ0 - DQ7  
7
A3  
G
Chip Enable  
SOP  
E
8
A10  
A2  
Output Enable  
Write Enable  
Power Supply Voltage  
Ground  
G
9
A1  
E
W
DQ7  
10  
11  
12  
13  
14  
A0  
VCC  
VSS  
DQ6  
DQ5  
DQ4  
DQ3  
DQ0  
DQ1  
DQ2  
VSS  
Top View  
July 15, 2002  
1

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