DS2155 datasheet(8/238 Pages) DALLAS

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DS2155

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2. DATA SHEET REVISION HISTORY

REVISION

DESCRIPTION

080607

In Section 3: Line Interface and Section 3.1: Functional Description, corrected dB values

for E1 and T1 (page 10 and page 13):

E1: 0 to -43dB and 0 to -12dB

T1: 0 to -15dB and 0 to -36dB

040907

Added Note 1 (GBD for cold temp) to Absolute Maximum Ratings (Section 36).

041806

Replaced Figure 24-3 and Figure 24-4, added Table 24-A and Table 24-B.

011606

Added lead-free packages to Ordering Information table on page 1.

Add revision history table: The previous version of the DS2155 data sheet (12-06-02) did

not incorporate a revision history table and did not describe new features added to B1

revision of the DS2155.

THE FOLLOWING WERE INADVERTENTLY REMOVED FROM THE

PREVIOUS VERSION OF THE DS2155 DATA SHEET:

Add CSBGA package information to Ordering Information table on front page

Add CSBGA package thermal characteristics to Operating Parameters section

Add Transmit Line Build Out Control register (TLBC) description

Add Transmit Line Build Out Control register (TLBC) to Port Map

Add Transmit Line Build Out Control register (TLBC) description to LIU TRANSMIT

section

THE FOLLOWING ARE CORRECTIONS TO ERRORS IN THE PREVIOUS

VERSION OF THE DS2155 DATA SHEET:

Correct Device ID in Device Identification Register

Correct Device ID in JTAG ID Code table

Correct minimum value for tDHW in AC CHARACTERISTICS: MULTIPLEXED

PARALLEL PORT table. tDHW was changed from 5ns to 0ns

Correct minimum value for tDDR in AC CHARACTERISTICS: MULTIPLEXED

PARALLEL PORT table. tDDR was changed from unstated to 20ns

Corrections to AC CHARACTERISTICS: TRANSMIT SIDE timing table.

1. tCP, tCH, tCL, tLP, tLH, tLL, and tSP typical values have been restated to reflect various IBO

modes.

2. tCH, tCL, tLH, tLL minimum values have been changed from 75ns to 20ns.

3. tSP, tLL minimum values have been changed from 50ns to 20ns.

4. tD3 minimum values have been changed from 75ns to 22ns.

Corrections to AC CHARACTERISTICS: RECEIVE SIDE timing table.

1. tCP, tCH, tCL, tLP, tLH, tLL, and tSP typical values have been restated to reflect various IBO

modes.

2. tCH, tCL, minimum values have been changed from 75ns to 20ns.

3. tSH, tSL minimum values have been changed from 50ns to 20ns.

4. tSH, tSL typical values have been added.

5. tD3, tD4 minimum values have been changed from 50ns to 22ns.

100903

Correct Transmit Signaling Registers (E1 Mode, CCS Format) table in Transmit Signaling

section

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