GCIXP1250BA 837411 Intel, GCIXP1250BA 837411 Datasheet - Page 71

• Manufacturer Part Number: GCIXP1250BA 837411
• Manufacturer: Intel

Specifications of GCIXP1250BA 837411

• Lead Free Status / Rohs Status: Supplier Unconfirmed

4.2
4.2.1
Datasheet
Table 35. I1, I3, O1, O3, O4, and O5 Pin Types
DC Specifications
The IXP1250 supports two fundamental I/O buffer Types: Type 1 and Type 2. The Pin Description
section defines which pins use which I/O buffer type. The driver characteristics are described in the
following sections. Please note that IXP1250 input pins are not 5 V tolerant. Devices driving the
IXP1250 must provide 3.3 V signal levels or use level shifting buffers to provide 3.3 V compatible
levels, otherwise damage to the device will result.
The Type 1 pins are 3.3 V Low Voltage TTL compatible I/O buffers. There are three versions of the
Type 1 driver that differ by the maximum available driver current.
The Type 2 pins are 3.3 V I/O buffers (supporting PCI Local Bus Specification, Revision 2.2).
Type 1 Driver DC Specifications
Table 35
1. Input leakage currents include high impedance output leakage for all bidirectional buffers with tri-state outputs.
V
V
V
V
I
C
i
oh
ol
ih
il
in
Symbol
refers to pin types: I1, O1, O3, O4, O5.
Input High Voltage
Input Low Voltage
Output High
Voltage
Output Low Voltage
Input Leakage
Current
Pin Capacitance
Parameter
1
O1: Ioh = -2 mA
O3: Ioh = -8 mA
O4: Ioh = -4 mA
O5: Ioh = -4 mA
O1: Iol = 2 mA
O3: Iol = 8 mA
O4: Iol = 4 mA
O5: Iol = 4 mA
0
-
Vin
Condition
VDDX
Intel
2.0 V
---
2.4 V
---
-10 A
4 pF
®
Minimum
IXP1250 Network Processor
---
0.8 V
-
0.4 V
10 A
10 pF
Maximum
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