28478G-18 Mindspeed Technologies, 28478G-18 Datasheet - Page 171

• Manufacturer Part Number: 28478G-18
• Description: Multichannel Synchronous Communications Controller 208-Pin BGA
• Manufacturer: Mindspeed Technologies

Specifications of 28478G-18

• Package: 208BGA
• Maximum Data Rate: 32768 Kbps
• Transmission Media Type: Wire
• Power Supply Type: Analog
• Typical Supply Current: 250 mA
• Typical Operating Supply Voltage: 3.3 V
• Minimum Operating Supply Voltage: 3 V
• Maximum Operating Supply Voltage: 3.6 V

7.2
7.2.1
The major subsystems of MUSYCC are the host interface, the expansion bus interface, and the serial interface.
The host interface is PCI compliant. For other references to PCI, see the PCI Local Bus Specification, Revision 2.1,
June 1, 1995. The expansion bus and serial bus interfaces are similar to the host interface timing characteristics;
the differences and specific characteristics common to either interface are further defined.
7.2.2
Reference the PCI Local Bus Specification, Revision 2.1, June 1, 1995 for information on:
•
•
•
•
•
•
Table 7-5.
28478-DSH-002-E
FOOTNOTE:
(1)
(2)
(3)
(4)
(5)
(6)
Guaranteed by design. It is the minimum voltage to which pull-up resistors are calculated to pull a floated network. Applications sensitive
to static power utilization should ensure that the input buffer is conducting minimum current at this input voltage.
Input leakage currents include hi-Z output leakage for all bidirectional buffers with three-state outputs.
Signals without pull-up resistors must have 3 mA low output current. Signals requiring pull-up must have 6 mA; the latter includes
FRAME*, TRDY*, IRDY*, DEVSEL*, STPP*, SERR*, and PERR*
Absolute maximum pin capacitance for a PCI input is 10 pF (except for CLK) with an exception granted to motherboard-only devices,
which could be up to 16 pF, in order to accommodate PGA packaging. This would mean, in general, that components for expansion
boards would need to use alternatives to ceramic PGA packaging – i.e., PQFP, SGA, etc.
Lower capacitance on this input-only pin allows for non-resistive coupling to AD[xx].
This is a recommendation, not an absolute requirement. The actual value should be provided with the component data sheet.
Indeterminate inputs and metastability
Power requirements, sequencing, decoupling
PCI DC specifications
PCI AC specifications
PCI V/I curves
Maximum AC ratings and device protection
V
Symbol
DDi
C
V
C
L
Vih
V
IDSEL
V
C
V
, V
I
ipu
pin
oh
clk
il
ol
in
il
DDo
PCI Interface DC Specifications
Supply Voltage
Input High Voltage
Input Low Voltage
Input Pull-up Voltage
Input Leakage Current
Output High Voltage
Output Low Voltage
Input Pin Capacitance
CLK Pin Capacitance
IDSEL Pin Capacitance
Pin Inductance
Timing and Switching Specifications
Overview
Host Interface (PCI) Timing and Switching Characteristic
Preliminary Information / Mindspeed Proprietary and Confidential
(6)
Parameter
(3)
(1)
(4)
(2)
(5)
Mindspeed Technologies
I
I
out
out
0 < V
Condition
= –500 µA
= 1500 µA
—
—
—
—
in
—
—
—
—
< V
Electrical and Mechanical Specifications
®
DD
3.0
0.7V
0.9V
0.5V
–0.5
DD
DD
DD
Min
—
—
—
—
—
5
V
0.1 V
GG
0.3V
Max
±10
3.6
—
—
10
12
20
8
+ 0.5
DD
DD
Unit
µA
nH
pF
pF
pF
V
V
V
V
V
V
158