Datasheet > SN74ACT72221L-25RJR

SN74ACT72221L-25RJR

更新时间： 2024-09-29 05:48:35

品牌	Logo	应用领域
德州仪器 - TI		先进先出芯片
页数	文件大小	规格书
21页	322K
描述
1KX9 OTHER FIFO, 15ns, PQCC32, PLASTIC, LCC-32

阅读下载

中文翻译

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

SN74ACT72221L-25RJR 技术参数

生命周期：	Obsolete	零件包装代码：	QFJ
包装说明：	QCCJ,	针数：	32
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.32.00.71	风险等级：	5.26
最长访问时间：	15 ns	周期时间：	25 ns
JESD-30 代码：	R-PQCC-J32	长度：	13.995 mm
内存密度：	9216 bit	内存宽度：	9
功能数量：	1	端子数量：	32
字数：	1024 words	字数代码：	1000
工作模式：	SYNCHRONOUS	最高工作温度：	70 °C
最低工作温度：		组织：	1KX9
输出特性：	3-STATE	可输出：	YES
封装主体材料：	PLASTIC/EPOXY	封装代码：	QCCJ
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：	3.56 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：	COMMERCIAL	端子形式：	J BEND
端子节距：	1.27 mm	端子位置：	QUAD
宽度：	11.4554 mm	Base Number Matches：	1

SN74ACT72221L-25RJR 数据手册

浏览型号SN74ACT72221L-25RJR的Datasheet PDF文件第2页

浏览型号SN74ACT72221L-25RJR的Datasheet PDF文件第3页

浏览型号SN74ACT72221L-25RJR的Datasheet PDF文件第4页

浏览型号SN74ACT72221L-25RJR的Datasheet PDF文件第5页

浏览型号SN74ACT72221L-25RJR的Datasheet PDF文件第6页

浏览型号SN74ACT72221L-25RJR的Datasheet PDF文件第7页

ꢀ

ꢁ

ꢂ

ꢃ

ꢄ

ꢅ

ꢆ

ꢂ

ꢇꢇ

ꢈ

ꢉ

ꢊ

ꢀ

ꢁ

ꢂ

ꢃ

ꢄ

ꢅ

ꢆ

ꢂ

ꢇ

ꢌ

ꢕ

ꢇ

ꢈ

ꢁ

ꢇ

ꢇ ×

ꢈ

ꢉ

ꢊ

ꢀ

ꢁ

ꢈ

ꢂ

ꢎ

ꢔ

ꢃ

ꢇ

ꢀ

ꢄ

ꢅ

ꢆ

ꢍ

ꢁ

ꢂ

ꢊ

ꢇ

ꢗ

ꢇ

ꢎ

ꢘ

ꢋ

ꢃ

ꢔ

ꢈ

ꢉ

ꢊ

ꢀ

ꢍ

ꢁ

ꢊ

ꢖ

ꢂ

ꢄ

ꢆ

ꢃ

ꢁ

ꢄ

ꢐ

ꢚ

ꢅ

ꢆ

ꢂ

ꢍ

ꢕ

ꢇ

ꢃ

ꢈ

ꢉ

ꢍ

ꢊ

ꢃ

ꢏ

ꢃ

ꢎ

ꢑ

ꢀ

ꢒ

ꢁ

ꢅ

ꢓ

ꢔ

ꢕ

ꢖ

ꢀ

ꢗ

ꢘ

ꢆ

ꢙ

ꢘ

ꢀ

ꢆ

ꢙ

ꢕ

ꢛ

ꢚ

ꢔ

ꢘ

ꢛ

ꢀ

SCAS222 − FEBRUARY 1993 − REVISED JUNE 1993

RJ PACKAGE

(TOP VIEW)

D Read and Write Clocks Can Be

Asynchronous or Coincident

D Organization:

− SN74ACT72211L − 512 × 9

− SN74ACT72221L − 1024 × 9

− SN74ACT72231L − 2048 × 9

− SN74ACT72241L − 4096 × 9

32 31 30

PAF

PAE

WEN1

WCLK

WEN2/LD

D Write and Read Cycle Times of 15 ns

D Bit-Width Expandable

GND

REN1 10

24 Q8

D Empty and Full Flags

RCLK

REN2

D Programmable Almost-Empty and

Almost-Full Flags With Default Offsets

of Empty+7 and Full−7, Respectively

14 15 16 17 18 19 20

D TTL-Compatible Inputs

D Fully Compatible With the

IDT72211/72221/72231/72241

D Available in 32-Pin Plastic J-Leaded

Chip Carrier (RJ)

description

The SN74ACT72211L, SN74ACT72221L, SN74ACT72231L, and SN74ACT72241L are constructed with

CMOS dual-port SRAM and are arranged as 512, 1024, 2048, and 4096 9-bit words, respectively. Internal write

and read address counters provide data throughput on a first-in, first-out (FIFO) basis. Full and empty flags

prevent memory overflow and underflow, and two programmable flags (almost full and almost empty) are

provided.

The SN74ACT72211L, SN74ACT72221L, SN74ACT72231L, and SN74ACT72241L are synchronous FIFOs,

which means the data input port and data output port each employ synchronous control. Write-enable (WEN1,

WEN2/LD) signals allow the low-to-high transition of the write clock (WCLK) to store data in memory, and

read-enable (REN1, REN2) signals allow the low-to-high transition of the read clock (RCLK) to read data from

memory. WCLK and RCLK are independent of one another and can operate asynchronously or be tied together

for single-clock operation.

The empty-flag (EF) output is synchronized to RCLK and the full-flag (FF) output is synchronized to WCLK to

indicate absolute boundary conditions. Write operations are prohibited when FF is low, and read operations are

prohibited when EF is low. Two programmable flags, programmable almost empty (PAE) and programmable

almost full (PAF), can both be programmed to indicate any measure of memory fill. After reset, PAE defaults

to empty+7 and PAF defaults to full−7. Flag-offset programming control is similar to a memory write with the

use of the load (WEN2/LD) signal.

These devices are suited for providing a data channel between two buses operating at asynchronous or

synchronous rates. Applications include use as rate buffers for graphics systems and high-speed queues for

communication systems. A 9-bit-wide data path is provided for the transmission of byte data plus a parity bit

or packet-framing information.

The SN74ACT72211L, SN74ACT72221L, SN74ACT72231L, and SN74ACT72241L are characterized for

operation from 0°C to 70°C.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

ꢜꢔ ꢕ ꢐꢖ ꢅ ꢆꢘ ꢕ ꢁ ꢐ ꢄꢆꢄ ꢝꢞ ꢟ ꢠꢡ ꢢ ꢣꢤ ꢝꢠꢞ ꢝꢥ ꢦꢧ ꢡ ꢡ ꢨꢞꢤ ꢣꢥ ꢠꢟ ꢩꢧꢪ ꢫꢝꢦ ꢣꢤ ꢝꢠꢞ ꢬꢣ ꢤꢨ ꢭ

ꢜꢡ ꢠ ꢬꢧꢦ ꢤ ꢥ ꢦ ꢠꢞ ꢟꢠ ꢡ ꢢ ꢤ ꢠ ꢥ ꢩꢨ ꢦ ꢝꢟ ꢝꢦꢣ ꢤꢝ ꢠꢞꢥ ꢩꢨ ꢡ ꢤꢮ ꢨ ꢤꢨ ꢡ ꢢꢥ ꢠꢟ ꢆꢨꢯ ꢣꢥ ꢘꢞꢥ ꢤꢡ ꢧꢢ ꢨꢞꢤ ꢥ

ꢥ ꢤ ꢣ ꢞꢬ ꢣ ꢡꢬ ꢰ ꢣ ꢡꢡ ꢣ ꢞ ꢤꢱꢭ ꢜꢡ ꢠ ꢬꢧꢦ ꢤꢝꢠꢞ ꢩꢡ ꢠꢦ ꢨꢥ ꢥꢝ ꢞꢲ ꢬꢠꢨ ꢥ ꢞꢠꢤ ꢞꢨ ꢦꢨ ꢥꢥ ꢣꢡ ꢝꢫ ꢱ ꢝꢞꢦ ꢫꢧꢬ ꢨ

ꢤ ꢨ ꢥ ꢤꢝ ꢞꢲ ꢠꢟ ꢣ ꢫꢫ ꢩꢣ ꢡ ꢣ ꢢ ꢨ ꢤ ꢨ ꢡ ꢥ ꢭ

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

^{POST OFFICE BOX 1443}• HOUSTON, TEXAS 77251−1443

12 3 4 5 6 7...21

中文翻译

下载PDF

与SN74ACT72221L-25RJR相关器件

型号	品牌	获取价格	描述	数据表
SN74ACT72221L35RJ	TI	获取价格	SYNCHRONOUS FIRST-IN FIRST-OUT MEMORIES
SN74ACT72221L50RJ	TI	获取价格	SYNCHRONOUS FIRST-IN FIRST-OUT MEMORIES
SN74ACT72221L-50RJ	TI	获取价格	1KX9 OTHER FIFO, 25ns, PQCC32, PLASTIC, LCC-32
SN74ACT72231L	TI	获取价格	SYNCHRONOUS FIRST-IN, FIRST-OUT MEMORIES
SN74ACT72231L15RJ	TI	获取价格	SYNCHRONOUS FIRST-IN FIRST-OUT MEMORIES
SN74ACT72231L20RJ	TI	获取价格	SYNCHRONOUS FIRST-IN FIRST-OUT MEMORIES
SN74ACT72231L20RJR	TI	获取价格	SYNCHRONOUS FIRST-IN FIRST-OUT MEMORIES
SN74ACT72231L-20RJR	TI	获取价格	2KX9 OTHER FIFO, 12ns, PQCC32, PLASTIC, LCC-32
SN74ACT72231L25RJ	TI	获取价格	SYNCHRONOUS FIRST-IN FIRST-OUT MEMORIES
SN74ACT72231L-25RJR	TI	获取价格	2KX9 OTHER FIFO, 15ns, PQCC32, PLASTIC, LCC-32

与SN74ACT72221L-25RJR相关文章

塔塔电子与力积电达成技术转让协议，携手建设印度首座晶圆厂
2024-09-29

22
英特尔震撼发布：128核心256线程的至强6性能核处理器
2024-09-29

17
SK海力士量产12层HBM3E，容量高达36GB
2024-09-27

18
意法半导体传感器驱动Sphere，开启沉浸式电影新时代
2024-09-27

31

产品中心

服务支持

精选活动

关于我们

帮助中心

SN74ACT72221L-25RJR

SN74ACT72221L-25RJR 技术参数

SN74ACT72221L-25RJR 数据手册

与SN74ACT72221L-25RJR相关器件

与SN74ACT72221L-25RJR相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

SN74ACT72221L-25RJR

SN74ACT72221L-25RJR 技术参数

SN74ACT72221L-25RJR 数据手册

与SN74ACT72221L-25RJR相关器件

与SN74ACT72221L-25RJR相关文章

您还可以找

您在本页遇到什么问题？