参数资料
型号: AXDA1600DUT3C
厂商: ADVANCED MICRO DEVICES INC
元件分类: 微控制器/微处理器
英文描述: 1400 MHz, MICROPROCESSOR, CPGA453
封装: OPGA-453
文件页数: 99/106页
文件大小: 2275K
代理商: AXDA1600DUT3C
80
Pin Descriptions
Chapter 11
AMD Athlon XP Processor Model 8 Data Sheet
25175H—March 2003
Preliminary Information
For more information, see the “Required Circuits” chapter of
the AMD Athlon Processor-Based Motherboard Design Guide,
order# 24363.
VREFSYS Pin
VREFSYS (W5) drives the threshold voltage for the system bus
input receivers. The value of VREFSYS is system specific. In
addition, to minimize VCC_CORE noise rejection from VREFSYS,
include decoupling capacitors. For more information, see the
AMD Athlon Processor-Based Motherboard Design Guide, order#
24363.
ZN and ZP Pins
ZN (AC5) and ZP (AE5) are the push-pull compensation circuit
pins. In Push-Pull mode (selected by the SIP parameter
SysPushPull asserted), ZN is tied to VCC_CORE with a resistor
that has a resistance matching the impedance Z0 of the
transmission line. ZP is tied to VSS with a resistor that has a
resistance matching the impedance Z0 of the transmission line.
Table 28. VID[4:0] Code to Voltage Definition
VID[4:0]
VCC_CORE (V)
VID[4:0]
VCC_CORE (V)
00000
1.850
10000
1.450
00001
1.825
10001
1.425
00010
1.800
10010
1.400
00011
1.775
10011
1.375
00100
1.750
10100
1.350
00101
1.725
10101
1.325
00111
1.675
10111
1.275
01000
1.650
11000
1.250
01001
1.625
11001
1.225
01010
1.600
11010
1.200
01011
1.575
11011
1.175
01100
1.550
11100
1.150
01101
1.525
11101
1.125
01110
1.500
11110
1.100
01111
1.475
11111
No CPU
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