73K321L

更新时间： 2024-02-17 06:07:18

品牌	Logo	应用领域
东电化 - TDK		调制解调器
页数	文件大小	规格书
24页	134K
描述
CCITT V.23, V.21 Single-Chip Modem

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技术参数
数据手册

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73K321L 技术参数

生命周期：	Transferred	包装说明：	,
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.09	其他特性：	HALF DUPLEX; FULL DUPLEX
数据速率：	1.2 Mbps	JESD-30 代码：	R-PDIP-T22
功能数量：	1	端子数量：	22
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装形状：	RECTANGULAR
封装形式：	IN-LINE	认证状态：	Not Qualified
最大压摆率：	12 mA	标称供电电压：	5 V
表面贴装：	NO	电信集成电路类型：	MODEM
温度等级：	INDUSTRIAL	端子形式：	THROUGH-HOLE
端子位置：	DUAL	Base Number Matches：	1

73K321L 数据手册

73K321L

CCITT V.23, V.21

Single-Chip Modem

K-Series devices are available with two control

interface versions: one for a parallel multiplexed

APPLICATIONS INFORMATION

GENERAL CONSIDERATIONS

address/data interface, and one for

serial

interface. The parallel version is intended for use

with 8039/48 or 8031/51 microcontrollers from Intel

or many other manufacturers. The serial can be

used with other microcontrollers or in applications

where only a limited number of port lines are

available or the application does not lend itself to a

multiplexed address/data interface. The parallel

versions may also be used in the Serial mode, as

explained in the data sheet pin description.

Figures 1 and 2 show basic circuit diagrams for

K-Series modem integrated circuits. K-Series

products are designed to be used in conjunction with

a control processor, a UART or RS-232 serial data

interface, and a DAA phone line interface to function

as a typical intelligent modem. The K-Series ICs

interface directly with Intel 8048 and 80C51

microprocessors for control and status monitoring

purposes.Two typical DAA arrangements are shown:

one for a split ±5 or ±12 volt design and one for a

single 5 volt design. These diagrams are for

In most applications the controller will monitor the

serial data for commands from the DTE and the

received data for break signals from the far end

modem. In this way, commands to the modem are

sent over the same line as the transmitted data. In

other applications the RS-232 interface handshake

lines are used for modem control.

reference only and do not represent production-

ready modem designs.

C14

C13

39 pF

18 pF

+5V

11.0592

MHZ

N/C

R10

2.2M

0.1 µF

22 µF

390 pF

XTL2

XTL1

INT

CLK XTL1

INT

XTL2 VDD

ISET

RS232

LEVEL

CONVERTERS

C10

0.1 µF

80C51

RTS

37.4K

AD7:0

P1.0

P0.0-7

GND

CTS

DSR

C11

0.1 µF

P1.1

P1.2

20K

VREF

RXA

DTR

P1.3

ALE

LM 1458

ALE

P3.1

P3.2

DCD

K-SERIES

LOW

P1.5

P1.6

0.1 µF

U1A

5.1K

300 pF

POWER

FAMILY

RXA

P3.0 P1.7 RESET

1000 pF

3.6K

TXD

RXD

43.2K

EXCLK

RXCLK

TXCLK

TXA

0.1 µF

20K

V+

MIDCOM

671-8005

TXA

+5V

RESET

LM 1458

U5, U6

MC145406

U1B

V–

475 1%

D3, D4

0.47 µF

250V

0.033 µF

C12

1 µF

4.7V

ZENER

4N35

VR1

MOV

V250L20

IN4004

+5V

22K

IN914

10K

2N2222A

22K

FIGURE 1: Basic Box Modem with Dual-Supply Hybrid

1...16 17 181920 21 22...24

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与73K321L相关器件

型号	品牌	描述	获取价格	数据表
73K321L-IH	TDK	CCITT V.23, V.21 Single-Chip Modem	获取价格
73K321L-IP	TDK	CCITT V.23, V.21 Single-Chip Modem	获取价格
73K321L-IP	TI	1.2kbps DATA, MODEM, PDIP28, 0.600 INCH, PLASTIC, DIP-28	获取价格
73K321SL-IP	TI	1.2kbps DATA, MODEM, PDIP22, 0.400 INCH, PLASTIC, DIP-22	获取价格
73K322L	TDK	CCITT V.23, V.22, V.21 Single-Chip Modem	获取价格
73K322L-IH	TDK	CCITT V.23, V.22, V.21 Single-Chip Modem	获取价格

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