T-8110L AGERE [Agere Systems], T-8110L Datasheet - Page 133
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T-8110L
Manufacturer Part Number
T-8110L
Description
Manufacturer
AGERE [Agere Systems]
Datasheet
1.T-8110L.pdf
(164 pages)
- Current page: 133 of 164
- Download datasheet (3Mb)
February 2004
Agere Systems Inc.
13 Electrical Characteristics
13.11 PC Board PBGA Considerations
The T8110L is a 272-ball plastic ball grid array package. The 16 centrally located thermal balls should be con-
nected to board ground. While there are no special printed-circuit board requirements for the T8110L, there are
specification requirements for PC board layout that must be adhered to. For instance, per the ECTF H.110 specifi-
cation, all CT bus data signals must not exceed 4 inches in length from connector to I/O cell and all CT bus clock
signals must not exceed 2 inches in length from connector to I/O cell. We advise the customer to become familiar
with applicable specifications for any PC board requirements.
13.12 Unused Pins
Multiple pins may share a common resistor. Signals with pull-up/down resistors may be left unconnected if unused.
Unused 8 mA 3-state signals may be left unconnected. If XTAL1_IN and/or XTAL2_IN are being driven from an
oscillator, then XTAL1_OUT and/or XTAL2_OUT must be left unconnected. If XTAL2 is not used, XTAL2_IN should
be pulled-up or tied directly to V
signal may be left unconnected. All signals listed as no connect (D16, D20, E17, and G17) in Table 8 must be left
unconnected.
13.13 External Pull-Up Pins
The EPU pins must be tied to an external pull-up resistor. Multiple pins may share a common resistor. It is recom-
mended that all EPU pins be tied to a commmon 20 k
13.14 T8110L Evaluation Kits
There is no T8110L-specific evaluation kit. If an evaluation kit is required, please purchase a T8110 PCI evaluation
kit, as the evaluation board allows the T8110 to be configured to be functionally identical to the T8110L. Each kit
contains an evaluation board, software, and documentation. The evaluation board is a full-length PCI board and it
includes the T8110 chip, a PCI-to-local bus bridge, a dual T1/E1 line interface, a dual codec, and a dual SLIC. The
software includes full source code, including rights to reuse. The documentation CD includes evaluation board
schematics (ORCAD and .pdf formats), evaluation board bill of material (BOM), and advisories. Please refer to the
website
13.15 T8110L Ordering Information
Table 111. T8110L Ordering Information
http://www.agere.com/enterprise_metro_access/tdm_interconnect.html
Device Part Number
T-8110L---BAL-DB
DD
and XTAL2_OUT should be left unconnected. If VPRECHARGE is unused, this
(continued)
272-Ball PBGA
pull-up resistor.
Package
Ambassador T8110L H.100/H.110 Switch
for additional information.
700052229
Comcode
133
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