W83194BR-703 Просмотр технического описания (PDF) - Winbond
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W83194BR-703 Datasheet PDF : 28 Pages
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W83194BR-703/W83194BG-703
5. PIN DESCRIPTION
BUFFER TYPE SYMBOL
IN
INtp120k
INtd120k
OUT
OD
#
*
&
DESCRIPTION
Input
Latched input at power up, internal 120kΩ pull up.
Latched input at power up, internal 120kΩ pull down.
Output
Open Drain
Active Low
Internal 120kΩ pull-up
Internal 120 kΩ pull-down
5.1 Crystal I/O
PIN
PIN NAME
6
XIN
7
XOUT
TYPE
DESCRIPTION
IN
OUT
Crystal input with internal loading capacitors (18pF) and
feedback resistors.
Crystal output at 14.318MHz nominally with internal loading
capacitors (18pF).
5.2 CPU, AGP, ZCLK and PCI, IOAPIC Clock Outputs
PIN
PIN NAME
TYPE
DESCRIPTION
38,37
40
43,42
CPUT0
CPUC0
CPUT1
SRCT, SRCC
OD 3.3V open drain differential clock outputs for AMD K7 CPU
OD
3.3V open drain singled –ended synchronize with CPUT0,
For chipset host bus
OUT Current mode differential clock outputs for SRC
31,30 AGP_0: 1
OUT 3.3V AGP clock outputs.
9,10 ZCLK0: 1
OUT 3.3V ZCLK clock outputs, For MuTIOL bus.
PCI_F0
14
FS2*
PCI_F1
15
FS3*
16,17,20,21
,22,23
PCI
[0:5]
47,46 IOAPIC [0:1]
OUT 3.3V PCI free running clock output.
INtp120k
Latched input for FS2 at initial power up for H/W selecting
the output frequency. This is internal 120K pull up.
OUT 3.3V PCI free running clock output.
INtp120k
Latched input for FS3 at initial power up for H/W selecting
the output frequency, This is internal 120K pull up.
OUT Low skew (< 250ps) PCI clock outputs.
OUT 2.5V IOAPIC outputs.
-4-
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