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SN55121

更新时间： 2024-11-17 22:50:15

品牌	Logo	应用领域
德州仪器 - TI		驱动器
页数	文件大小	规格书
7页	120K
描述
DUAL LINE DRIVERS

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数据手册

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SN55121 数据手册

SN55121, SN75121

DUAL LINE DRIVERS

SLLS074C – SEPTEMBER 1973 – REVISED MAY 1998

SN55121 . . . J PACKAGE

SN75121 . . . D OR N PACKAGE

(TOP VIEW)

Designed for Digital Data Transmission

Over 50-Ω to 500-Ω Coaxial Cable, Strip

Line, or Twisted Pair

High Speed

= 20 ns Maximum at C = 15 pF

TTL Compatible With Single 5-V Supply

2.4-V Output at I = –75 mA

13 2D

12 2C

Uncommitted Emitter-Follower Output

Structure for Party-Line Operation

Short-Circuit Protection

GND

AND-OR Logic Configuration

Designed for Use With Triple Line

Receivers SN55122, SN75122

SN55121 . . . FK PACKAGE

(TOP VIEW)

Designed to Be Interchangeable With

Signetics N8T13

description

20 19

The SN55121 and SN75121 dual line drivers are

designed for digital data transmission over lines

having impedances from 50 to 500 Ω. They are

also compatible with standard TTL logic and

supply-voltage levels.

9 10 11 12 13

The low-impedance emitter-follower outputs of

the SN55121 and SN75121 can drive terminated

lines such as coaxial cable or twisted pair. Having

the outputs uncommitted allows wired-OR logic to

be performed in party-line applications. Output

short-circuit protection is provided by an internal

clamping network that turns on when the output

voltagedropsbelowapproximately1.5V. Allofthe

inputs are in conventional TTL configuration and

the gating can be used during power-up and

power-down sequences to ensure that no noise is

introduced to the line.

NC–No internal connection

THE SN75121 IS NOT

RECOMMENDED FOR NEW DESIGNS

The SN55121 is characterized for operation over

the full military temperature range of –55°C to

125°C. The SN75121 is 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.

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.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7

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与SN55121相关器件

型号	品牌	获取价格	描述	数据表
SN55121_14	TI	获取价格	DUAL LINE DRIVERS
SN55121FK	TI	获取价格	DUAL LINE DRIVERS
SN55121J	TI	获取价格	DUAL LINE DRIVERS
SN55122	TI	获取价格	TRIPLE LINE RECEIVERS
SN55122FK	TI	获取价格	TRIPLE LINE RECEIVERS
SN55122J	TI	获取价格	TRIPLE LINE RECEIVERS
SN55138	TI	获取价格	QUADRUPLE BUS TRANSCEIVERS
SN55138_14	TI	获取价格	QUADRUPLE BUS TRANSCEIVERS
SN55138FK	TI	获取价格	QUADRUPLE BUS TRANSCEIVERS
SN55138FK-00	TI	获取价格	LINE TRANSCEIVER, CQCC20