SN75LBC775

更新时间： 2024-09-14 22:53:31

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
11页	156K
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SINGLE-CHIP APPLETALKE AND LOCALTALKE TRANSCEIVER

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SN75LBC775 数据手册

SN75LBC775

SINGLE-CHIP APPLETALK AND LOCALTALK TRANSCEIVER

SLLS216A – MAY 1995 – REVISED JANUARY 1996

DW PACKAGE

(TOP VIEW)

Single-Chip Interface Solution for

AppleTalk and LocalTalk

Designed to Operate Up To 1 Mbps In

AppleTalk and LocalTalk

HSKA

GND

C–

C+

DEN

HSKY

RY2

RA2

RB2

RB1

RA1

RY1

REN

Switched-Capacitor Voltage Converter

Allows for Single 5-V Operation

4-kV ESD Protection on Bus Terminals

Combines Multiple Components into a

Single Chip Solution

GND

LinBiCMOS Process Technology

description

The SN75LBC775 is a low-power LinBiCMOS

device that incorporates the drivers and receivers

for an AppleTalk or a LocalTalk interface and a

switched-capacitor voltage converter for a single

5-V supply operation. LocalTalk uses a hybrid of

RS-422 with the transceiver connected to the

network through a small isolation transformer.

The AppleTalk mode provides point-to-point

communications and uses the same differential

driver and receiver as LocalTalk with the addition

of a hybrid RS-423, single-ended handshake

driver (HSK) and receiver. In the AppleTalk mode,

the port connects directly to the receiver with no

isolation transformer.

functional diagram

HSKY

HSKA

DEN

RA1

RB1

RY1

While the device power is turned off (V

= 0) or

disabled in the LocalTalk mode, the outputs are in

a high-impedance state. When the driver enable

(DEN) terminal is high, both the differential and

serial driver outputs are in a high-impedance

state.

RA2

RB2

RY2

The receiver output can be disabled and becomes

a high impedance when the REN terminal is low.

REN

–5 V

Aswitched-capacitorvoltageconvertergenerates

the negative voltage required from a single 5-V

supply using two 22-µF capacitors. One capacitor

is between the C+ and C– terminals and the

Charge Pump

GND

second is between V and ground.

The SN75LBC775 is characterized for operating

over the temperature range of 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.

LocalTalk and AppleTalk are trademarks of Apple Computer, Inc.

LinBiCMOS is a trademark of 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.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

^{POST OFFICE BOX 1443}• HOUSTON, TEXAS 77251–1443

12 3 4 5 6 7...11

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与SN75LBC775相关器件

型号	品牌	获取价格	描述	数据表
SN75LBC775DW	TI	获取价格	SINGLE-CHIP APPLETALKE AND LOCALTALKE TRANSCEIVER
SN75LBC775DWR	TI	获取价格	LINE TRANSCEIVER, PDSO20, GREEN, PLASTIC, SOIC-20
SN75LBC775DWRG4	TI	获取价格	IC LINE TRANSCEIVER, PDSO20, GREEN, PLASTIC, SOIC-20, Line Driver or Receiver
SN75LBC776	TI	获取价格	SINGLE-CHIP GeoPortE TRANSCEIVER
SN75LBC776DB	TI	获取价格	DUAL LINE TRANSCEIVER, PDSO20, PLASTIC, MO-150, SO-20
SN75LBC776DBR	TI	获取价格	SINGLE-CHIP GeoPort TRANSCEIVER
SN75LBC776DBRG4	TI	获取价格	DUAL LINE TRANSCEIVER, PDSO20, GREEN, PLASTIC, SSOP-20
SN75LBC776DW	TI	获取价格	SINGLE-CHIP GeoPortE TRANSCEIVER
SN75LBC776DW	ROCHESTER	获取价格	DUAL LINE TRANSCEIVER, PDSO20, GREEN, PLASTIC, SOIC-20
SN75LBC776DWG4	TI	获取价格	DUAL LINE TRANSCEIVER, PDSO20, GREEN, PLASTIC, SOIC-20

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