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CY74FCT2646CTQCTG4 PDF预览

CY74FCT2646CTQCTG4

更新时间： 2024-11-21 21:13:23
品牌 Logo 应用领域
德州仪器 - TI 光电二极管输出元件逻辑集成电路触发器
页数 文件大小 规格书
14页 501K
描述
FCT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24, GREEN, PLASTIC, QSOP-24

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CY74FCT2646CTQCTG4 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：SOIC包装说明：SSOP, SSOP24,.24
针数：24Reach Compliance Code：compliant
风险等级：5.71控制类型：INDEPENDENT CONTROL
计数方向：BIDIRECTIONAL系列：FCT
JESD-30 代码：R-PDSO-G24长度：8.65 mm
逻辑集成电路类型：REGISTERED BUS TRANSCEIVER最大I（ol）：0.012 A
位数：8功能数量：1
端口数量：2端子数量：24
最高工作温度：85 °C最低工作温度：-40 °C
输出特性：3-STATE WITH SERIES RESISTOR输出极性：TRUE
封装主体材料：PLASTIC/EPOXY封装代码：SSOP
封装等效代码：SSOP24,.24封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, SHRINK PITCH包装方法：TAPE AND REEL
峰值回流温度（摄氏度）：NOT SPECIFIED电源：5 V
Prop。Delay @ Nom-Sup：5.4 ns传播延迟（tpd）：5.7 ns
认证状态：Not Qualified座面最大高度：1.75 mm
子类别：Bus Driver/Transceivers最大供电电压 (Vsup)：5.25 V
最小供电电压 (Vsup)：4.75 V标称供电电压 (Vsup)：5 V
表面贴装：YES技术：CMOS
温度等级：INDUSTRIAL端子形式：GULL WING
端子节距：0.635 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED翻译：N/A
触发器类型：POSITIVE EDGE宽度：3.9 mm
Base Number Matches：1

CY74FCT2646CTQCTG4 数据手册

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CY74FCT2646T  
8-BIT REGISTERED TRANSCEIVER  
WITH 3-STATE OUTPUTS  
SCCS043C – SEPTEMBER 1994 – REVISED NOVEMBER 2001  
Q PACKAGE  
(TOP VIEW)  
Function and Pinout Compatible With FCT  
and F Logic  
Reduced V  
of Equivalent FCT Functions  
(Typically = 3.3 V) Versions  
OH  
CPAB  
SAB  
DIR  
V
CC  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
CPBA  
SBA  
G
2
25-Ω Output Series Resistors to Reduce  
Transmission-Line Reflection Noise  
3
A
4
1
A
2
B
5
Edge-Rate Control Circuitry for  
Significantly Improved Noise  
Characteristics  
1
A
B
2
6
3
A
4
7
B
3
A
B
4
8
5
I
Supports Partial-Power-Down Mode  
off  
A
6
B
9
5
Operation  
A
10  
11  
B
B
B
7
6
7
8
Matched Rise and Fall Times  
A
8
ESD Protection Exceeds JESD 22  
– 2000-V Human-Body Model (A114-A)  
– 200-V Machine Model (A115-A)  
GND 12  
– 1000-V Charged-Device Model (C101)  
Fully Compatible With TTL Input and  
Output Logic Levels  
12-mA Output Sink Current  
15-mA Output Source Current  
Independent Register for A and B Buses  
3-State Outputs  
description  
The CY74FCT2646T consists of a bus transceiver circuit with 3-state, D-type flip-flops, and control circuitry  
arranged for multiplexed transmission of data directly from the input bus or from the internal registers. Data on  
the A or B bus is clocked into the registers as the appropriate clock pin goes to a high logic level.  
Output-enable (G) and direction-control (DIR) inputs determine the transceiver function. On-chip termination  
resistors at the outputs reduce system noise caused by reflections, so that the CY74FCT2646T can replace  
the CY74FCT646T in an existing design.  
In the transceiver mode, data present at the high-impedance port can be stored in either the A or B register,  
or in both. Select controls (SAB, SBA) can multiplex stored and real-time (transparent mode) data. DIR  
determines which bus receives data when G is active low. In the isolation mode (G is high), A data can be stored  
in the B register and/or B data can be stored in the A register.  
This device is fully specified for partial-power-down applications using I . The I circuitry disables the outputs,  
off  
off  
preventing damaging current backflow through the device when it is powered down.  
PIN DESCRIPTION  
NAME  
DESCRIPTION  
A
B
Data register A inputs, data register B outputs  
Data register B inputs, data register A outputs  
CPAB, CPBA Clock pulse inputs  
SAB, SBA  
DIR, G  
Output data source select inputs  
Output-enable inputs  
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.  
Copyright 2001, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...14

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CY74FCT2646CTQCTG4 替代型号

型号 品牌 替代类型 描述 数据表
CY74FCT2646CTQCT TI

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