DS2148 データシートの表示（PDF） - Maxim Integrated

部品番号

コンポーネント説明

一致するリスト

DS2148

5V E1/T1/J1 Line Interface Unit

Maxim Integrated 

DS2148/DS21Q48

2 PIN DESCRIPTION

The DS2148 can be controlled in a parallel port mode, a serial port mode, or a hardware mode (Table 2-1,

Table 2-2, and Table 2-3). The parallel and serial port modes are described in Section 3.2 and 3.3, and the

hardware mode is described below.

Table 2-1. Bus Interface Selection

BIS1 BIS0 PBTS BUS INTERFACE TYPE

0

0

0

Muxed Intel

0

0

1

Muxed Motorola

0

1

0

Nonmuxed Intel

0

1

1

Nonmuxed Motorola

1

0

-

Serial Port

1

1

-

Hardware

Table 2-2. Pin Assignment in Parallel Port Mode

DS2148T

PIN #

1

2

3

DS2148G

PIN#

C3

C2

B1

I/O

PARALLEL

PORT MODE

I

CS

I

RD(DS)

I

WR(R/W)

4

D2

I

ALE(AS)

5

C1

I

NA

6

D3

I

NA

7

D1

I/O

A4

8

E1

I

A3

9

F2

I

A2

10

F1

I

A1

11

G1

I

A0

12

E3

I/O

D7/AD7

13

F3

I/O

D6/AD6

14

G2

I/O

D5/AD5

15

F4

I/O

D4/AD4

16

G3

I/O

D3/AD3

17

E4

I/O

D2/AD2

18

G4

I/O

D1/AD1

19

F5

I/O

D0/AD0

20

G5

I

VSM

21

F6

-

VDD

22

G6

-

VSS

23

E5

I/O

INT

24

E6

O

PBEO

25

F7

O

RCL/LOTC

26

D6

I

TEST

27

D5

I

RTIP

28

D7

I

RRING

10 of 73

Share Link: