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74FST3244DTR2: 产品描述8−Bit Bus Switch; 产品类别逻辑逻辑; 文件大小197KB，共7页; 制造商ON Semiconductor(安森美); 官网地址http://www.onsemi.cn; 标准

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74FST3244DTR2概述

8−Bit Bus Switch

74FST3244DTR2规格参数

参数名称	属性值
是否Rohs认证	符合
厂商名称	ON Semiconductor(安森美)
零件包装代码	TSSOP
包装说明	TSSOP, TSSOP20,.25
针数	20
Reach Compliance Code	unknown
系列	CBT/FST/QS/5C/B
JESD-30 代码	R-PDSO-G20
JESD-609代码	e4
长度	6.5 mm
逻辑集成电路类型	BUS DRIVER
湿度敏感等级	1
位数	4
功能数量	2
端口数量	2
端子数量	20
最高工作温度	85 °C
最低工作温度	-40 °C
输出特性	3-STATE
输出极性	TRUE
封装主体材料	PLASTIC/EPOXY
封装代码	TSSOP
封装等效代码	TSSOP20,.25
封装形状	RECTANGULAR
封装形式	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
电源	5 V
传播延迟（tpd）	0.25 ns
认证状态	Not Qualified
座面最大高度	1.2 mm
最大供电电压 (Vsup)	5.5 V
最小供电电压 (Vsup)	4 V
标称供电电压 (Vsup)	4.5 V
表面贴装	YES
技术	CMOS
温度等级	INDUSTRIAL
端子面层	Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式	GULL WING
端子节距	0.65 mm
端子位置	DUAL
宽度	4.4 mm
Base Number Matches	1

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74FST3244

8−Bit Bus Switch

The ON Semiconductor 74FST3244 is an 8−bit, high performance

switch. The device is CMOS TTL compatible when operating between

4 and 5.5 Volts. The device exhibits extremely low R

and adds

nearly zero propagation delay. The device adds no noise or ground

bounce to the system.

The device consists of two 4−bit switches with separate

Output/Enable (OE) pins. Port A is connected to Port B when OE is

low. If OE is high, the switch is high Z.

Features

http://onsemi.com

MARKING

DIAGRAMS

SOIC−20

DW SUFFIX

CASE 751D

TSSOP−20

DT SUFFIX

CASE 948E

FST

3244

ALYW

FST3244

AWLYYWW

•

Typical

Less Than 0.25 ns−Max Delay Through Switch

Nearly Zero Standby Current

No Circuit Bounce

Control Inputs are TTL/CMOS Compatible

Pin−For−Pin Compatible with QS3244, FST3244, CBT3244

All Popular Packages: QSOP−20, TSSOP−20, SOIC−20

All Devices in Package TSSOP are Inherently Pb−Free*

GND

QSOP−20

QS SUFFIX

CASE 492A

L, WL

W, WW

FST3244

AWLYWW

Figure 1. 20−Lead Pinout

Assembly Location

Wafer Lot

Year

Work Week

PIN NAMES

TRUTH TABLE

Inputs

Inputs/Outputs

1A, 1B

1A = 1B

2A, 2B

2A = 2B

, OE

1A, 2A

1B, 2B

Description

Bus Switch Enables

Bus A

Bus B

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 2 of this data sheet.

*For additional information on our Pb−Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

Publication Order Number:

74FST3244/D

Semiconductor Components Industries, LLC, 2006

June, 2006

−

Rev. 2

74FST3244DTR2相似产品对比

	74FST3244DTR2	74FST3244QSR	74FST3244_06	74FST3244QS	74FST3244DWR2	74FST3244DW	74FST3244DT	74FST3244
描述	8−Bit Bus Switch	8−Bit Bus Switch	8−Bit Bus Switch	8−Bit Bus Switch	8−Bit Bus Switch	8−Bit Bus Switch	8−Bit Bus Switch	8−Bit Bus Switch
是否Rohs认证	符合	符合	-	符合	不符合	不符合	符合	-
厂商名称	ON Semiconductor(安森美)	ON Semiconductor(安森美)	-	ON Semiconductor(安森美)	ON Semiconductor(安森美)	ON Semiconductor(安森美)	ON Semiconductor(安森美)	-
零件包装代码	TSSOP	QSOP	-	QSOP	SOIC	SOIC	TSSOP	-
包装说明	TSSOP, TSSOP20,.25	SSOP, SSOP20,.25	-	QSOP-20	SOP, SOP20,.4	SOIC-20	TSSOP, TSSOP20,.25	-
针数	20	20	-	20	20	20	20	-
Reach Compliance Code	unknown	unknown	-	unknown	not_compliant	not_compliant	unknown	-
系列	CBT/FST/QS/5C/B	CBT/FST/QS/5C/B	-	CBT/FST/QS/5C/B	CBT/FST/QS/5C/B	CBT/FST/QS/5C/B	CBT/FST/QS/5C/B	-
JESD-30 代码	R-PDSO-G20	R-PDSO-G20	-	R-PDSO-G20	R-PDSO-G20	R-PDSO-G20	R-PDSO-G20	-
JESD-609代码	e4	e3	-	e3	e0	e0	e4	-
长度	6.5 mm	8.65 mm	-	8.65 mm	12.8 mm	12.8 mm	6.5 mm	-
逻辑集成电路类型	BUS DRIVER	BUS DRIVER	-	BUS DRIVER	BUS DRIVER	BUS DRIVER	BUS DRIVER	-
湿度敏感等级	1	1	-	1	1	1	1	-
位数	4	4	-	4	4	4	4	-
功能数量	2	2	-	2	2	2	2	-
端口数量	2	2	-	2	2	2	2	-
端子数量	20	20	-	20	20	20	20	-
最高工作温度	85 °C	85 °C	-	85 °C	85 °C	85 °C	85 °C	-
最低工作温度	-40 °C	-40 °C	-	-40 °C	-40 °C	-40 °C	-40 °C	-
输出特性	3-STATE	3-STATE	-	3-STATE	3-STATE	3-STATE	3-STATE	-
输出极性	TRUE	TRUE	-	TRUE	TRUE	TRUE	TRUE	-
封装主体材料	PLASTIC/EPOXY	PLASTIC/EPOXY	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	-
封装代码	TSSOP	SSOP	-	SSOP	SOP	SOP	TSSOP	-
封装等效代码	TSSOP20,.25	SSOP20,.25	-	SSOP20,.25	SOP20,.4	SOP20,.4	TSSOP20,.25	-
封装形状	RECTANGULAR	RECTANGULAR	-	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	-
封装形式	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, SHRINK PITCH	-	SMALL OUTLINE, SHRINK PITCH	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	-
电源	5 V	5 V	-	5 V	5 V	5 V	5 V	-
传播延迟（tpd）	0.25 ns	0.25 ns	-	0.25 ns	0.25 ns	0.25 ns	0.25 ns	-
认证状态	Not Qualified	Not Qualified	-	Not Qualified	Not Qualified	Not Qualified	Not Qualified	-
座面最大高度	1.2 mm	1.73 mm	-	1.73 mm	2.65 mm	2.65 mm	1.2 mm	-
最大供电电压 (Vsup)	5.5 V	5.5 V	-	5.5 V	5.5 V	5.5 V	5.5 V	-
最小供电电压 (Vsup)	4 V	4 V	-	4 V	4 V	4 V	4 V	-
标称供电电压 (Vsup)	4.5 V	4.5 V	-	4.5 V	4.5 V	4.5 V	4.5 V	-
表面贴装	YES	YES	-	YES	YES	YES	YES	-
技术	CMOS	CMOS	-	CMOS	CMOS	CMOS	CMOS	-
温度等级	INDUSTRIAL	INDUSTRIAL	-	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	-
端子面层	Nickel/Palladium/Gold (Ni/Pd/Au)	Tin (Sn)	-	Tin (Sn)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Nickel/Palladium/Gold (Ni/Pd/Au)	-
端子形式	GULL WING	GULL WING	-	GULL WING	GULL WING	GULL WING	GULL WING	-
端子节距	0.65 mm	0.635 mm	-	0.635 mm	1.27 mm	1.27 mm	0.65 mm	-
端子位置	DUAL	DUAL	-	DUAL	DUAL	DUAL	DUAL	-
宽度	4.4 mm	3.9 mm	-	3.9 mm	7.5 mm	7.5 mm	4.4 mm	-
Base Number Matches	1	1	-	1	1	1	-	-

74FST3244DTR2

74FST3244DTR2概述

74FST3244DTR2规格参数

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74FST3244DTR2相似产品对比

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