CS5535-UDCF AMD (ADVANCED MICRO DEVICES), CS5535-UDCF Datasheet - Page 33
CS5535-UDCF
Manufacturer Part Number
CS5535-UDCF
Description
Manufacturer
AMD (ADVANCED MICRO DEVICES)
Datasheet
1.CS5535-UDCF.pdf
(579 pages)
Specifications of CS5535-UDCF
Operating Temperature (min)
0C
Operating Temperature (max)
85C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
Part Number:
CS5535-UDCF
Manufacturer:
AMD
Quantity:
20 000
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Signal Definitions
3.1.1
Table 3-2 "Ball Assignments: Sorted by Ball Number" on
page 27 includes a column labeled “Buffer Type”. The
details of each buffer type listed in this column are given in
Table 3-4. The column headings in Table 3-4 are identified
as follows:
TS: Indicates whether the buffer may be put into the TRI-
STATE mode. Note some pins that have buffer types that
allow TRI-STATE may never actually enter the TRI-STATE
mode in practice, since they may be inputs or provide other
signals that are always driven. To determine if a particular
signal can be put in the TRI-STATE mode, consult the indi-
vidual signal descriptions in Section 3.2 "Signal Descrip-
tions" on page 36.
OD: Indicates if the buffer is open-drain, or not. Open-drain
outputs may be wire ORed together and require a discrete
pull-up resistor to operate properly.
5VT: Indicates if the buffer is 5-volt tolerant, or not. If it is 5-
volt tolerant, then 5 volt TTL signals may be safely applied
to this pin.
AMD Geode™ CS5535 Companion Device Data Book
Name
Q3
Q5
Q7
PCI
IDE
SMB
Bare_Wire
Bare_Wire_BP
AVDD_USB
AVSS_USB
Buffer Types
NA
NA
NA
NA
TS
X
X
X
X
X
OD
NA
NA
NA
NA
X
Table 3-4. Buffer Type Characteristics
5VT
X
Backdrive
Protected
X
X
Backdrive Protected: Indicates that the buffer may have
active signals applied even when the Geode CS5535 com-
panion device is powered down.
PU/PD: Indicates if an internal, programmable pull-up or
pull-down resistor may be present.
Current High/Low (mA): This column gives the current
source/sink capacities when the voltage at the pin is high,
and low. The high and low values are separated by a “/”
and values given are in milli-amps (mA).
Rise/Fall @ Load: This column indicates the rise and fall
times for the different buffer types at the load capacitance
indicated. These measurements are given in two ways:
rise/fall time between the 20%-80% voltage levels, or, the
rate of change the buffer is capable of, in volts-per-nano-
second (V/ns). See Section 7.3 "AC Characteristics" on
page 550 for details.
Note the presence of several “wire” type buffers in this
table. Signals identified as one of the wire-types are not
driven by a buffer, hence no rise/fall time or other measure-
ments are given; these are marked “NA” in Table 3-4. The
wire-type connection indicates a direct connection to inter-
nal circuits such as power, ground, and analog signals.
PU/PD
NA
NA
NA
NA
X
X
X
High/Low
Current
0.5/1.5
24/24
24/24
24/24
16/16
(mA)
NA
NA
NA
NA
31506B
Fall: 300 ns @ 400 pF
Rise: 1 µs @ 400 pF
1.25 V/ns @ 40 pF
Rise/Fall @ Load
1-4 V/ns @ 10 pF
3 ns @ 50 pF
5 ns @ 50 pF
7 ns @ 50 pF
NA
NA
NA
NA
33
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