DS21FF42N データシートの表示（PDF） - Dallas Semiconductor -> Maxim Integrated

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DS21FF42N

4 X 3 Twelve Channel T1 Framer, 4 X 4 Sixteen Channel T1 Framer

Dallas Semiconductor -> Maxim Integrated 

DALLAS SEMICONDUCTOR

DS21FF42/DS21FT42

2. MCM LEAD DESCRIPTION

Lead Description Sorted by Symbol Table 2-1

Lead Symbol

I/O Description

B7 8MCLK

O 8.192 MHz Clock Based on CLKSI.

G20 A0

I

Address Bus Bit 0 (lsb).

H20 A1

I

Address Bus Bit 1.

G19 A2

I

Address Bus Bit 2.

H19 A3

I

Address Bus Bit 3.

G18 A4

I

Address Bus Bit 4.

H18 A5

I

Address Bus Bit 5.

G17 A6

I

Address Bus Bit 6.

H17 A7

I

Address Bus Bit 7 (msb).

W15 BTS

I

Bus Timing Select. 0 = Intel / 1 = Motorola.

B6 CLKSI

I

Reference clock for the 8.192MHz clock synthesizer.

T8

CS1*

I

Chip Select for Quad Framer 1.

Y4 CS2*

I

Chip Select for Quad Framer 2.

Y15 CS3*

I

Chip Select for Quad Framer 3.

E19 CS4*/NC

I

Chip Select for Quad Framer 4. NC on Four x Three.

L20 D0

I/O Data Bus Bit 0 (lsb).

M20 D1

I/O Data Bus Bit 1.

L19 D2

I/O Data Bus Bit 2.

M19 D3

I/O Data Bus Bit 3.

L18 D4

I/O Data Bus Bit 4.

M18 D5

I/O Data Bus Bit 5.

L17 D6

I/O Data Bus Bit 6.

M17 D7

I/O Data Bus Bit 7 (msb).

C7 DVDD1

– Digital Positive Supply for Framer 1.

E4

DVDD1

– Digital Positive Supply for Framer 1.

D2 DVDD1

– Digital Positive Supply for Framer 1.

K3 DVDD2

– Digital Positive Supply for Framer 2.

U7 DVDD2

– Digital Positive Supply for Framer 2.

P2

DVDD2

– Digital Positive Supply for Framer 2.

V19 DVDD3

– Digital Positive Supply for Framer 3.

T12 DVDD3

– Digital Positive Supply for Framer 3.

L16 DVDD3

– Digital Positive Supply for Framer 3.

D17 DVDD4/NC

– Digital Positive Supply for Framer 4. NC on Four x Three.

F16 DVDD4/NC

– Digital Positive Supply for Framer 4. NC on Four x Three.

B11 DVDD4/NC

– Digital Positive Supply for Framer 4. NC on Four x Three.

E9

DVSS1

– Digital Signal Ground for Framer 1.

A6 DVSS1

– Digital Signal Ground for Framer 1.

D5 DVSS1

– Digital Signal Ground for Framer 1.

U3 DVSS2

– Digital Signal Ground for Framer 2.

K4 DVSS2

– Digital Signal Ground for Framer 2.

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.

101899

/1237

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