DS21FT44 データシートの表示（PDF） - Dallas Semiconductor -> Maxim Integrated

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DS21FT44

4x3 Twelve Channel E1 Framer, 4x4 Sixteen Channel E1 Framer

Dallas Semiconductor -> Maxim Integrated 

DS21FT44/DS21FF44

Lead

Symbol

I/O Description

U8

DVSS2

–

Digital Signal Ground for Framer 2.

U4

DVSS3

–

Digital Signal Ground for Framer 3.

R16

DVSS3

–

Digital Signal Ground for Framer 3.

Y20

DVSS3

–

Digital Signal Ground for Framer 3.

J20

DVSS4/NC

–

Digital Signal Ground for Framer 4. NC on Four x Three.

A11

DVSS4/NC

–

Digital Signal Ground for Framer 4. NC on Four x Three.

D19

DVSS4/NC

–

Digital Signal Ground for Framer 4. NC on Four x Three.

Y14

FS0

I

Framer Select 0 for the Parallel Control Port.

W14

FS1

I

Framer Select 1 for the Parallel Control Port.

G16

INT*

O Interrupt for all four Quad Framers.

V14

JTCLK

I

JTAG Clock.

E10

JTDI

I

JTAG Data Input.

A19

JTDOF/NC

O JTAG Data Output for Four x Four Version. NC on Four

x Three.

T17

JTDOT

O JTAG Data Output for Four x Three Version.

H16

JTMS

I

JTAG Test Mode Select.

K17

JTRST*

I

JTAG Reset.

A13

TEST

I

Tri-State. 0 = do not tri-state / 1 = tri-state all outputs &

I/O signals

P17

MUX

I

Bus Operation Select. 0 = non-multiplexed bus / 1 =

multiplexed bus

C2

RCHBLK1

O Receive Channel Blocking Clock.

G3

RCHBLK2

O Receive Channel Blocking Clock.

E6

RCHBLK3

O Receive Channel Blocking Clock.

A8

RCHBLK4

O Receive Channel Blocking Clock.

N1

RCHBLK5

O Receive Channel Blocking Clock.

Y1

RCHBLK6

O Receive Channel Blocking Clock.

U6

RCHBLK7

O Receive Channel Blocking Clock.

N5

RCHBLK8

O Receive Channel Blocking Clock.

Y8

RCHBLK9

O Receive Channel Blocking Clock.

W12

RCHBLK10

O Receive Channel Blocking Clock.

V17

RCHBLK11

O Receive Channel Blocking Clock.

U17

RCHBLK12

O Receive Channel Blocking Clock.

D16

RCHBLK13/NC

O

Receive Channel Blocking Clock. NC on Four x Three.

K20

RCHBLK14/NC

O

Receive Channel Blocking Clock. NC on Four x Three.

B18

RCHBLK15/NC

O

Receive Channel Blocking Clock. NC on Four x Three.

B16

RCHBLK16/NC

O

Receive Channel Blocking Clock. NC on Four x Three.

A2

RCLK1

I

Receive Clock for Framer 1

K1

RCLK2

I

Receive Clock for Framer 2.

D10

RCLK3

I

Receive Clock for Framer 3.

B9

RCLK4

I

Receive Clock for Framer 4.

M3

RCLK5

I

Receive Clock for Framer 5.

V1

RCLK6

I

Receive Clock for Framer 6.

W6

RCLK7

I

Receive Clock for Framer 7.

J3

RCLK8

I

Receive Clock for Framer 8.

T9

RCLK9

I

Receive Clock for Framer 9.

8 of 110

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