PEB20256EV21GXP Infineon Technologies, PEB20256EV21GXP Datasheet - Page 34

• Manufacturer Part Number: PEB20256EV21GXP
• Manufacturer: Infineon Technologies

Specifications of PEB20256EV21GXP

• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / Rohs Status: Compliant

2.5
•
Data Sheet
Pin No.
P2
P1
N4
N3
P4
SPI Interface
Symbol
SPI
SPO
SPCLK
SPCS
SPLOAD
Output (O)
Input (I)
O
O
O
I
I
34
Function
SPI Serial Input
SPI is a data input pin, where data coming
from an external EEPROM is shifted in.
SPI is sampled on the rising edge of
SPCLK.
recommended if the SPI interface is not
used.
SPI Serial Output
SPO is a push/pull serial data output pin.
Opcodes, byte addresses and data is
updated on the falling edge of SPCLK. It
is tri-state during reset.
SPI Clock Signal
SPCLK controls the serial bus timing of
the SPI bus. SPCLK is derived from the
PCI bus clock with a frequency of 1/78 of
the PCI bus clock. It is tri-state during
reset.
SPI Chip Select
SPCS is used to select an external
EEPROM. It is tri-state during reset.
Enable SPI Load Functionality
Connecting SPLOAD to V
SPI bus after reset. In this case parts of
the PCI configuration space can be
configured via an external EEPROM.
A
pull-up
Pin Description
DD3
PEB 20256 E
PEF 20256 E
resistor
enables the
04.2001
is