Datasheet > L7C185KM12L

L7C185KM12L

更新时间： 2024-11-25 21:18:31

品牌	Logo	应用领域
逻辑 - LOGIC		静态存储器内存集成电路
页数	文件大小	规格书
8页	306K
描述
Standard SRAM, 8KX8, 12ns, CMOS, CQCC28, CERAMIC, LCC-28

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中文翻译

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技术参数
数据手册

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L7C185KM12L 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	QLCC	包装说明：	QCCN,
针数：	28	Reach Compliance Code：	unknown
ECCN代码：	3A001.A.2.C	HTS代码：	8542.32.00.41
风险等级：	5.88	最长访问时间：	12 ns
JESD-30 代码：	R-CQCC-N28	长度：	14.0208 mm
内存密度：	65536 bit	内存集成电路类型：	STANDARD SRAM
内存宽度：	8	湿度敏感等级：	3
功能数量：	1	端口数量：	1
端子数量：	28	字数：	8192 words
字数代码：	8000	工作模式：	ASYNCHRONOUS
最高工作温度：	125 °C	最低工作温度：	-55 °C
组织：	8KX8	可输出：	YES
封装主体材料：	CERAMIC, METAL-SEALED COFIRED	封装代码：	QCCN
封装形状：	RECTANGULAR	封装形式：	CHIP CARRIER
并行/串行：	PARALLEL	认证状态：	Not Qualified
座面最大高度：	2.159 mm	最小待机电流：	2 V
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：	MILITARY
端子形式：	NO LEAD	端子节距：	1.27 mm
端子位置：	QUAD	宽度：	8.89 mm
Base Number Matches：	1

L7C185KM12L 数据手册

L7C185

DEVICES INCORPORATED

8K x 8 Static RAM (Low Power)

L7C185

8K x 8 Static RAM (Low Power)

DEVICES INCORPORATED

FEATURES

DESCRIPTION

The L7C185 is a high-performance,

low-power CMOS static RAM. The

storage circuitry is organized as 8,192

as 2 V. The L7C185 and L7CL185-L

consume only 30 µW and 15 µW

(typical) respectively at 3 V, allowing

q 8K x 8 Static RAM with Chip Select

Powerdown, Output Enable

q Auto-Powerdown™ Design

q Advanced CMOS Technology

q High Speed — to 12 ns maximum

q Low Power Operation

Active:

words by 8 bits per word. The 8 Data effective battery backup operation.

In and Data Out signals share I/O

The L7C185 provides asynchronous

pins. These devices are available in

(unclocked) operation with matching

four speeds with maximum access

access and cycle times. Two Chip

times from 12 ns to 25 ns.

Enables (one active-low) and a three-

425 mW typical at 25 ns

Standby (typical):

400µW (L7C185)

200 µW (L7C185-L)

Inputs and outputs are TTL compat-

ible. Operation is from a single +5 V

power supply. Power consumption

for the L7C185 is 425 mW (typical) at

25 ns. Dissipation drops to 60 mW

(typical) for the L7C185 and 50 mW

(typical) for the L7C185-L when the

memory is deselected.

state I/O bus with a separate Output

Enable control simplify the connection

of several chips for increased storage

capacity.

q Data Retention at 2 V for Battery

Backup Operation

Memory locations are specified on

address pins A0 through A12. Read-

ing from a designated location is

accomplished by presenting an

address and driving CE1 and OE

LOW, and CE2 and WE HIGH. The

data in the addressed memory

location will then appear on the Data

Out pins within one access time. The

output pins stay in a high-impedance

state when CE1 or OE is HIGH, or CE2

or WE is LOW.

q DESC SMD No. 5962-38294

q Available 100% Screened to

MIL-STD-883, Class B

Two standby modes are available.

Proprietary Auto-Powerdown™

circuitry reduces power consumption

automatically during read or write

accesses which are longer than the

minimum access time, or when the

memory is deselected. In addition,

data may be retained in inactive

storage with a supply voltage as low

q Plug Compatible with IDT7164,

Cypress CY7C185/186

q Package Styles Available:

• 28-pin Plastic DIP

• 28-pin Ceramic DIP

• 28-pin Plastic SOJ

• 28-pin Ceramic Flatpack

• 28-pin Ceramic LCC

• 32-pin Ceramic LCC

Writing to an addressed location is

accomplished when the active-low

CE1 and WE inputs are both LOW,

and CE2 is HIGH. Any of these

signals may be used to terminate the

write operation. Data In and Data Out

signals have the same polarity.

L7C185 BLOCK DIAGRAM

Latchup and static discharge pro-

tection are provided on-chip. The

L7C185 can withstand an injection

current of up to 200 mA on any pin

without damage.

256 x 32 x 8

MEMORY

ARRAY

ROW

ADDRESS

COLUMN SELECT

I/O7-0

CONTROL

& COLUMN SENSE

OBSOLETE

COLUMN ADDRESS

64K Static RAMs

07/07/1999–LDS.185-E

12 3 4 5 6 7 8

中文翻译

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与L7C185KM12L相关器件

型号	品牌	获取价格	描述	数据表
L7C185KM15	LOGIC	获取价格	Standard SRAM, 8KX8, 15ns, CMOS, CQCC28, CERAMIC, LCC-28
L7C185KM15L	ETC	获取价格	x8 SRAM
L7C185KM20	ETC	获取价格	x8 SRAM
L7C185KM20L	LOGIC	获取价格	Standard SRAM, 8KX8, 20ns, CMOS, CQCC28, CERAMIC, LCC-28
L7C185KM25	ETC	获取价格	x8 SRAM
L7C185KM25L	ETC	获取价格	x8 SRAM
L7C185KM35	LOGIC	获取价格	Standard SRAM, 8KX8, 35ns, CMOS, CQCC28, 0.350 X 0.550 INCH, CERAMIC, LCC-28
L7C185KM35L	LOGIC	获取价格	Standard SRAM, 8KX8, 35ns, CMOS, CQCC28, 0.350 X 0.550 INCH, CERAMIC, LCC-28
L7C185KMB12	ETC	获取价格	x8 SRAM
L7C185KMB15L	ETC	获取价格	x8 SRAM

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