Datasheet > IS61QDB22M18A-250B4L

IS61QDB22M18A-250B4L

更新时间： 2024-10-13 20:04:23

品牌	Logo	应用领域
美国芯成 - ISSI		时钟静态存储器内存集成电路
页数	文件大小	规格书
29页	479K
描述
QDR SRAM, 2MX36, 0.45ns, CMOS, PBGA165, 13 X 15 MM, 1.40 MM HEIGHT, LEAD FREE, LFBGA-165

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IS61QDB22M18A-250B4L 技术参数

是否Rohs认证：	符合	生命周期：	Active
零件包装代码：	BGA	包装说明：	LBGA, BGA165,11X15,40
针数：	165	Reach Compliance Code：	compliant
ECCN代码：	3A991.B.2.A	HTS代码：	8542.32.00.41
风险等级：	5.28	最长访问时间：	0.45 ns
其他特性：	PIPELINED ARCHITECTURE	最大时钟频率 (fCLK)：	250 MHz
I/O 类型：	SEPARATE	JESD-30 代码：	R-PBGA-B165
长度：	15 mm	内存密度：	75497472 bit
内存集成电路类型：	QDR SRAM	内存宽度：	36
功能数量：	1	端子数量：	165
字数：	2097152 words	字数代码：	2000000
工作模式：	SYNCHRONOUS	最高工作温度：	70 °C
最低工作温度：		组织：	2MX36
输出特性：	3-STATE	封装主体材料：	PLASTIC/EPOXY
封装代码：	LBGA	封装等效代码：	BGA165,11X15,40
封装形状：	RECTANGULAR	封装形式：	GRID ARRAY, LOW PROFILE
并行/串行：	PARALLEL	电源：	1.5/1.8,1.8 V
认证状态：	Not Qualified	座面最大高度：	1.4 mm
最大待机电流：	0.27 A	最小待机电流：	1.7 V
子类别：	SRAMs	最大压摆率：	0.95 mA
最大供电电压 (Vsup)：	1.89 V	最小供电电压 (Vsup)：	1.71 V
标称供电电压 (Vsup)：	1.8 V	表面贴装：	YES
技术：	CMOS	温度等级：	COMMERCIAL
端子形式：	BALL	端子节距：	1 mm
端子位置：	BOTTOM	宽度：	13 mm
Base Number Matches：	1

IS61QDB22M18A-250B4L 数据手册

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IS61QDB22M18A

IS61QDB21M36A

2Mx18, 1Mx36

36Mb QUAD (Burst 2) Synchronous SRAM

ADVANCED INFORMATION

JULY 2012

DESCRIPTION

FEATURES

The 36Mb IS61QDB21M36A and IS61QDB22M18A are



1Mx36 and 2Mx18 configuration available.

synchronous, high-performance CMOS static random access

memory (SRAM) devices. These SRAMs have separate I/Os,

eliminating the need for high-speed bus turnaround. The

rising edge of K clock initiates the read/write operation, and

all internal operations are self-timed. Refer to the Timing

Reference Diagram for Truth Table for a description of the

basic operations of these QUAD (Burst of 2) SRAMs.

On-chip Delay-Locked Loop (DLL) for wide data

valid window.



Separate independent read and write ports with

concurrent read and write operations.

Synchronous pipeline read with EARLY write

operation.

Double Data Rate (DDR) interface for read and

write input ports.

The input address bus operates at double data rate. The

following are registered internally on the rising edge of the K

clock:



Fixed 2-bit burst for read and write operations.

Clock stop support.



Read address

Two input clocks (K and K#) for address and control

registering at rising edges only.

Read enable

Write enable



Two output clocks (C and C#) for data output control.

Byte writes

Two echo clocks (CQ and CQ#) that are delivered

simultaneously with data.

Data-in for early writes



+1.8V core power supply and 1.5, 1.8V VDDQ, used

with 0.75, 0.9V VREF.

The following are registered on the rising edge of the K#

clock:



HSTL input and output interface.



Write address

Registered addresses, write and read controls, byte

writes, data in, and data outputs.

Byte writes

Data-in for second burst addresses



Full data coherency.

Boundary scan using limited set of JTAG 1149.1

functions.

Byte writes can change with the corresponding data-in to

enable or disable writes on a per-byte basis. An internal write

buffer enables the data-ins to be registered half a cycle

earlier than the write address. The first data-in burst is

clocked at the same time as the write command signal, and

the second burst is timed to the following rising edge of the

K# clock.



Byte write capability.

Fine ball grid array (FBGA) package:

13mmx15mm and 15mmx17mm body size

165-ball (11 x 15) array

Programmable impedance output drivers via 5x

user-supplied precision resistor.



During the burst read operation, the data-outs from the first

bursts are updated from output registers of the second rising

edge of the C# clock (starting 1.5 cycles later after read

command). The data-outs from the second bursts are

updated with the third rising edge of the C clock. The K and

K# clocks are used to time the data-outs whenever the C and

C# clocks are tied high.

The device is operated with a single +1.8V power supply and

is compatible with HSTL I/O interfaces.

without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to

obtain the latest version of this device specification before relying on any published information and before placing orders for products.

Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can

reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such

applications unless Integrated Silicon Solution, Inc. receives written assurance to its satisfaction, that:

a.) the risk of injury or damage has been minimized;

b.) the user assume all such risks; and

c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances

Integrated Silicon Solution, Inc.- www.issi.com

Rev. 00A

7/05/2012

12 3 4 5 6 7...29

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与IS61QDB22M18A-250B4L相关器件

型号	品牌	获取价格	描述	数据表
IS61QDB22M18A-250B4LI	ISSI	获取价格	QDR SRAM, 2MX36, 0.45ns, CMOS, PBGA165, 13 X 15 MM, 1.40 MM HEIGHT, LEAD FREE, LFBGA-165
IS61QDB22M18A-250M3L	ISSI	获取价格	QDR SRAM, 2MX36, 0.45ns, CMOS, PBGA165, 15 X 17 MM, 1.40 MM HEIGHT, LEAD FREE, LFBGA-165
IS61QDB22M18A-300B3LI	ISSI	获取价格	QDR SRAM, 2MX18, 0.45ns, CMOS, PBGA165, 13 X 15 MM, 1.20 MM HEIGHT, LEAD FREE, TFBGA-165
IS61QDB22M18A-300M3L	ISSI	获取价格	QDR SRAM, 2MX36, 0.45ns, CMOS, PBGA165, 15 X 17 MM, 1.40 MM HEIGHT, LEAD FREE, LFBGA-165
IS61QDB22M18A-333B3	ISSI	获取价格	QDR SRAM, 2MX18, 0.45ns, CMOS, PBGA165, 13 X 15 MM, 1.20 MM HEIGHT, TFBGA-165
IS61QDB22M18A-333B3L	ISSI	获取价格	QDR SRAM, 2MX18, 0.45ns, CMOS, PBGA165, 13 X 15 MM, 1.20 MM HEIGHT, LEAD FREE, TFBGA-165
IS61QDB22M18A-333B3LI	ISSI	获取价格	QDR SRAM, 2MX18, 0.45ns, CMOS, PBGA165, 13 X 15 MM, 1.20 MM HEIGHT, LEAD FREE, TFBGA-165
IS61QDB22M18A-333B4L	ISSI	获取价格	QDR SRAM, 2MX36, 0.45ns, CMOS, PBGA165, 13 X 15 MM, 1.40 MM HEIGHT, LEAD FREE, LFBGA-165
IS61QDB22M18A-333M3LI	ISSI	获取价格	QDR SRAM, 2MX36, 0.45ns, CMOS, PBGA165, 15 X 17 MM, 1.40 MM HEIGHT, LEAD FREE, LFBGA-165
IS61QDB22M18C-250M3L	ISSI	获取价格	QDR SRAM, 2MX18, 0.45ns, CMOS, PBGA165, 15 X 17 MM, 1.40 MM HEIGHT, LEAD FREE, LFBGA-165

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