Datasheet> 器件分类 > 逻辑> 逻辑> SN74LS240N8

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SN74LS240N8: 产品描述Bus Driver, LS Series, 2-Func, 4-Bit, Inverted Output, TTL, PDIP20, ROHS COMPLIANT, PLASTIC, DIP-20; 产品类别逻辑逻辑; 文件大小1MB，共30页; 制造商Rochester Electronics; 官网地址https://www.rocelec.com/

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SN74LS240N8概述

Bus Driver, LS Series, 2-Func, 4-Bit, Inverted Output, TTL, PDIP20, ROHS COMPLIANT, PLASTIC, DIP-20

SN74LS240N8规格参数

参数名称	属性值
厂商名称	Rochester Electronics
包装说明	ROHS COMPLIANT, PLASTIC, DIP-20
Reach Compliance Code	unknown
系列	LS
JESD-30 代码	R-PDIP-T20
长度	25.4 mm
逻辑集成电路类型	BUS DRIVER
位数	4
功能数量	2
端口数量	2
端子数量	20
最高工作温度	70 °C
最低工作温度
输出特性	3-STATE
输出极性	INVERTED
封装主体材料	PLASTIC/EPOXY
封装代码	DIP
封装形状	RECTANGULAR
封装形式	IN-LINE
传播延迟（tpd）	18 ns
座面最大高度	5.08 mm
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	NO
技术	TTL
温度等级	COMMERCIAL
端子形式	THROUGH-HOLE
端子节距	2.54 mm
端子位置	DUAL
宽度	7.62 mm
Base Number Matches	1

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SN54LS240, SN54LS241, SN54LS244, SN54S240, SN54S241, SN54S244

SN74LS240, SN74LS241, SN74LS244, SN74S240, SN74S241, SN74S244

OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS

SDLS144C − APRIL 1985 − REVISED MAY 2010

3-State Outputs Drive Bus Lines or Buffer

Memory Address Registers

PNP Inputs Reduce DC Loading

Hysteresis at Inputs Improves Noise

Margins

SN54LS’, SN54S’ . . . J OR W PACKAGE

SN74LS240, SN74LS244 . . . DB, DW, N, OR NS PACKAGE

SN74LS241 . . . DW, N, OR NS PACKAGE

SN74S’ . . . DW OR N PACKAGE

(TOP VIEW)

description

These octal buffers and line drivers are designed

specifically to improve both the performance and

density of three-state memory address drivers,

clock drivers, and bus-oriented receivers and

transmitters. The designer has a choice of

selected combinations of inverting and

noninverting outputs, symmetrical, active-low

output-control (G) inputs, and complementary

output-control (G and G) inputs. These devices

feature high fan-out, improved fan-in, and 400-mV

noise margin. The SN74LS’ and SN74S’ devices

can be used to drive terminated lines down to

133

Ω.

1A1

2Y4

1A2

2Y3

1A3

2Y2

1A4

2Y1

GND

†

2G/2G

†

1Y1

2A4

1Y2

2A3

1Y3

2A2

1Y4

2A1

2G for ’LS241 and ’S241 or 2G for all other drivers.

SN54LS’, SN54S’ . . . FK PACKAGE

(TOP VIEW)

1A2

2Y3

1A3

2Y2

1A4

3 2 1 20 19

9 10 11 12 13

2Y4

1A1

2G/2G

1Y1

2A4

1Y2

2A3

1Y3

†

2G for ’LS241 and ’S241 or 2G for all other drivers.

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.

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.



2010, Texas Instruments Incorporated

On products compliant to MIL-PRF-38535, all parameters are tested

unless otherwise noted. On all other products, production

processing does not necessarily include testing of all parameters.

POST OFFICE BOX 655303

•

DALLAS, TEXAS 75265

2Y1

GND

2A1

1Y4

2A2

†

SN74LS240N8相似产品对比

	SN74LS240N8	SN74LS241N8	SN74S241N3
描述	Bus Driver, LS Series, 2-Func, 4-Bit, Inverted Output, TTL, PDIP20, ROHS COMPLIANT, PLASTIC, DIP-20	Bus Driver, LS Series, 2-Func, 4-Bit, True Output, TTL, PDIP20, ROHS COMPLIANT, PLASTIC, DIP-20	Bus Driver, S Series, 2-Func, 4-Bit, True Output, TTL, PDIP20, PLASTIC, DIP-20
包装说明	ROHS COMPLIANT, PLASTIC, DIP-20	DIP,	DIP,
Reach Compliance Code	unknown	unknown	unknown
系列	LS	LS	S
JESD-30 代码	R-PDIP-T20	R-PDIP-T20	R-PDIP-T20
长度	25.4 mm	25.4 mm	25.4 mm
逻辑集成电路类型	BUS DRIVER	BUS DRIVER	BUS DRIVER
位数	4	4	4
功能数量	2	2	2
端口数量	2	2	2
端子数量	20	20	20
最高工作温度	70 °C	70 °C	70 °C
输出特性	3-STATE	3-STATE	3-STATE
输出极性	INVERTED	TRUE	TRUE
封装主体材料	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
封装代码	DIP	DIP	DIP
封装形状	RECTANGULAR	RECTANGULAR	RECTANGULAR
封装形式	IN-LINE	IN-LINE	IN-LINE
传播延迟（tpd）	18 ns	18 ns	9 ns
座面最大高度	5.08 mm	5.08 mm	5.08 mm
最大供电电压 (Vsup)	5.25 V	5.25 V	5.25 V
最小供电电压 (Vsup)	4.75 V	4.75 V	4.75 V
标称供电电压 (Vsup)	5 V	5 V	5 V
表面贴装	NO	NO	NO
技术	TTL	TTL	TTL
温度等级	COMMERCIAL	COMMERCIAL	COMMERCIAL
端子形式	THROUGH-HOLE	THROUGH-HOLE	THROUGH-HOLE
端子节距	2.54 mm	2.54 mm	2.54 mm
端子位置	DUAL	DUAL	DUAL
宽度	7.62 mm	7.62 mm	7.62 mm
Base Number Matches	1	1	1
厂商名称	Rochester Electronics	-	Rochester Electronics
其他特性	-	OUTPUT ENABLE ACTIVE HIGH FOR ONE FUNCTION	OUTPUT ENABLE ACTIVE HIGH FOR ONE FUNCTION

SN74LS240N8

SN74LS240N8概述

SN74LS240N8规格参数

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SN74LS240N8相似产品对比

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