PNX1500E NXP Semiconductors, PNX1500E Datasheet - Page 26

• Manufacturer Part Number: PNX1500E
• Manufacturer: NXP Semiconductors

Specifications of PNX1500E

• Lead Free Status / Rohs Status: Not Compliant

NXP Semiconductors
Volume 1 of 1
Table 1: PNX1500 I/O Types
Table 2: PNX1500 I/O Modes
PNX15XX_PNX952X_SER_N_4
Product data sheet
Pad Type
PCIT5V
IIC3M4SDAT5V
IIC3M4SCLT5V
BPX2T14MCP
BPTS1CP
BPTS1CHP
BPTS3CP
BPTS3CHP
BPT3MCHT5V
BPT3MCHDT5V 3.3-V regular impedance output, with slow rise/fall time, combined with 5-V tolerant input with hysteresis
IPCP
IPCHP
SSTLCLKIO
SSTLADDIO
SSTLDATIO
Modes
IN
OUT
OD
I/O
I/OD
I/O/D
O
Description
PCI 2.2 compliant I/O using 3.3- or 5- V PCI signaling conventions.
Open drain 3.3- or 5- V I
3.3-V low impedance output, with fast rise/fall time, combined with 3.3-V input only.
Used for Clock signals requires board level 27-33
3.3-V regular impedance output, with fast rise/fall time, combined with 3.3-V input only.
3.3-V regular impedance output, with fast rise/fall time, combined with 3.3-V input only with hysteresis.
3.3-V regular impedance output, with slow rise/fall time, combined with 3.3-V input only.
3.3-V regular impedance output, with slow rise/fall time, combined with 3.3-V input only with hysteresis.
3.3-V regular impedance output, with slow rise/fall time, combined with 5-V tolerant input with hysteresis.
and internal pull-down.
Note: The pull-down is NOT strong enough to actually pull down a 5-V TTL input. Instead the TTL input
pin sees a ‘1’.
3.3-V input only.
3.3-V input only with hysteresis.
SSTL_2 low impedance, e.g. DDR SDRAM clocks. Requires a board level 10
to match a 50
SSTL_2 low impedance for output signals, e.g. DDR SDRAM address and control signals. Requires a
board level matched 50
SSTL_2 low impedance for DDR SDRAM data signals. Requires a board level matched 50
Description
Input only, except during boundary scan or GPIO mode.
Output only, except when used as a GPIO pin.
Open drain output - active pull low, no active drive high, requires external pull-up.
Input or Output.
Input or open drain output - active pull low, no active drive high, requires external pull-up.
Input or output or open drain output with input - active pull low, no active drive high, requires external pull-
up when operated in open drain mode.
Output or floating.
PNX1500 uses different I/Os depending on the type of the interface, e.g. PCI, or
electrical characteristics needed for the functionality, e.g. a clock signal requires
sharper edges than a regular signal. The following table summarizes the types of I/
Os, a.k.a. pads, used in PNX1500.
The above pad types are used in the modes listed in the following table
Unused pins may remain unconnected, i.e. floating if they contain an internal pull-up
or pull-down. More specifically,
PCB trace.
2
C I/Os.
PCB trace.
Rev. 4.0 — 03 December 2007
series terminator resistor to match 50
PNX15xx/952x Series
Chapter 1: Integrated Circuit Data
series terminator resistor
© NXP B.V. 2007. All rights reserved.
PCB trace.
PCB trace.
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