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: 51/106页
文件大小: 2275K
代理商: AXDA1600DUT3C
Chapter 8
Electrical Data
37
25175H—March 2003
AMD Athlon XP Processor Model 8 Data Sheet
Preliminary Information
8.9
SYSCLK and SYSCLK# DC Characteristics
Table 14 shows the DC characteristics of the SYSCLK and
SYSCLK# differential clocks. The SYSCLK signal represents
CLKIN and RSTCLK tied together while the SYSCLK# signal
repres ents CLKIN# and RSTC LK# tied to gether. Fo r
information about SYSCLK and SYSCLK#, see “SYSCLK and
Figure 11 shows the DC characteristics of the SYSCLK and
SYSCLK# signals.
Figure 11. SYSCLK and SYSCLK# Differential Clock Signals
Table 14. SYSCLK and SYSCLK# DC Characteristics
Symbol
Description
Min
Max
Units
VThreshold-DC Crossing before transition is detected (DC)
400
mV
VThreshold-AC Crossing before transition is detected (AC)
450
mV
ILEAK_P
Leakage current through P-channel pullup to VCC_CORE
–1
mA
ILEAK_N
Leakage current through N-channel pulldown to VSS (Ground)
1
mA
VCROSS
Differential signal crossover
VCC_CORE / 2±100
mV
CPIN
Capacitance *
4
25 *
pF
Note:
*
The following processor inputs have twice the listed capacitance because they connect to two input pads—SYSCLK and SYSCLK#.
SYSCLK connects to CLKIN/RSTCLK. SYSCLK# connects to CLKIN#/RSTCLK#.
VCROSS
VThreshold-DC = 400mV
VThreshold-AC = 450mV
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