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SN74ACT7814-20DL中文资料

厂家型号

SN74ACT7814-20DL

文件大小

278.1Kbytes

页面数量

14

功能描述

64 × 18 STROBED FIRST-IN, FIRST-OUT MEMORY

先进先出 64 x 18 asynchronous 先进先出 memory

数据手册

原厂下载下载地址一下载地址二到原厂下载

生产厂商

TI2

SN74ACT7814-20DL数据手册规格书PDF详情

Member of the Texas Instruments

WidebusE Family

Load Clock and Unload Clock Can Be

Asynchronous or Coincident

64 Words by 18 Bits

Low-Power Advanced CMOS Technology

Full, Empty, and Half-Full Flags

Programmable Almost-Full/Almost-Empty

Flag

Fast Access Times of 15 ns With a 50-pF

Load and All Data Outputs Switching

Simultaneously

Data Rates up to 50 MHz

3-State Outputs

Pin-to-Pin Compatible With SN74ACT7804

and SN74ACT7806

Packaged in Shrink Small-Outline 300-mil

Package Using 25-mil Center-to-Center

Spacing

description

A FIFO memory is a storage device that allows

data to be written into and read from its array at

independent data rates. The SN74ACT7814 is a

64-word by 18-bit FIFO for high speed and fast

access times. It processes data at rates up to

50 MHz and access times of 15 ns in a bit-parallel

format.

Data is written into memory on a low-to-high

transition at the load clock (LDCK) input and is

read out on a low-to-high transition at the unload

clock (UNCK) input. The memory is full when the

number of words clocked in exceeds the number

of words clocked out by 64. When the memory is

full, LDCK signals have no effect on the data

residing in memory. When the memory is empty,

UNCK signals have no effect.

Status of the FIFO memory is monitored by the full (FULL), empty (EMPTY), half-full (HF), and

almost-full/almost-empty (AF/AE) flags. The FULL output is low when the memory is full and high when the

memory is not full. The EMPTY output is low when the memory is empty and high when it is not empty. The HF

output is high when the FIFO contains 32 or more words and is low when it contains 31 or fewer words. The

AF/AE status flag is a programmable flag. The first one or two low-to-high transitions of LDCK after reset are

used to program the almost-empty offset value (X) and the almost-full offset value (Y) if program enable (PEN)

is low. The AF/AE flag is high when the FIFO contains X or fewer words or (64 – Y) or more words. The AF/AE

flag is low when the FIFO contains between (X + 1) and (63 – Y) words.

SN74ACT7814-20DL产品属性

  • 类型

    描述

  • 型号

    SN74ACT7814-20DL

  • 功能描述

    先进先出 64 x 18 asynchronous 先进先出 memory

  • RoHS

  • 制造商

    IDT

  • 数据总线宽度

    18 bit

  • 总线定向

    Unidirectional

  • 存储容量

    4 Mbit

  • 定时类型

    Synchronous

  • 组织

    256 K x 18

  • 最大时钟频率

    100 MHz

  • 访问时间

    10 ns

  • 电源电压-最大

    3.6 V

  • 电源电压-最小

    6 V

  • 最大工作电流

    35 mA

  • 最大工作温度

    + 85 C

  • 封装/箱体

    TQFP-80

更新时间:2025-10-4 8:11:00
供应商 型号 品牌 批号 封装 库存 备注 价格
TI(德州仪器)
24+
SSOP56
921
只做原装,提供一站式配单服务,代工代料。BOM配单
TI
24+
SSOP-56P
34
TEXAS
24+
SSOP
6868
原装现货,可开13%税票
TI
16+
SSOP
10000
原装正品
Texas Instruments
24+
56-SSOP
53200
一级代理/放心采购
TI(德州仪器)
2447
SSOP-56
315000
20个/管一级代理专营品牌!原装正品,优势现货,长期
TI
25+
SSOP-56
40
就找我吧!--邀您体验愉快问购元件!
TI(德州仪器)
2021+
SSOP-56
499
TI/德州仪器
24+
SSOP-56
9600
原装现货,优势供应,支持实单!
TI/德州仪器
25+
SSOP-56
8880
原装认准芯泽盛世!

SN74ACT7814-20DL 价格

参考价格:¥65.5613

型号:SN74ACT7814-20DL 品牌:Texas 备注:这里有SN74ACT7814-20DL多少钱,2025年最近7天走势,今日出价,今日竞价,SN74ACT7814-20DL批发/采购报价,SN74ACT7814-20DL行情走势销售排排榜,SN74ACT7814-20DL报价。