FW82801EB Intel, FW82801EB Datasheet - Page 617

• Manufacturer Part Number: FW82801EB
• Manufacturer: Intel

Specifications of FW82801EB

• Lead Free Status / RoHS Status: Not Compliant

Intel
®
Table 194. Power Sequencing and Reset Signal Timings
82801EB ICH5 / 82801ER ICH5R Datasheet
NOTES:
1. The V5Ref supply must power up before or simultaneous with its associated 3.3 V supply, and must power
2. The associated 3.3 V and 1.5 V supplies are assumed to power up or down ‘together’. VccSus3_3 must ramp
3. The VccSus supplies must never be active while the VccRTC supply is inactive. Likewise, the Vcc supplies
4. SYSRESET# is not checked for triggering t177.
Sym
t170
t171
t172
t173
t174
t175
t176
t177
t178
t179
t180
down simultaneous with or after the 3.3 V supply. See
up with or before VccSus1_5_x and VccSus3_3 must power down after VccSus1_5.
must never be active while the VccSus supplies are inactive.
VccRTC active to RTCRST# inactive
V5RefSus active to VccSus3_3, VccSus1_5_x
active
VccRTC supply active to VccSus supplies
active
VccSus supplies active to LAN_RST# active,
RSMRST# inactive
V5Ref active to Vcc3_3, Vcc1_5 active
VccSus supplies active to Vcc supplies active
Vcc supplies active to PWROK, VRMPWRGD
active
PWROK and VRMPWRGD active to
SUS_STAT# inactive and Frequency straps at
appropriate value
SUS_STAT# inactive to PCIRST# inactive
AC_RST# active low pulse width
AC_RST# inactive to AC_BIT_CLK startup
delay
Parameter
Section 2.21.3.1
162.8
Min
10
99
32
5
0
0
0
0
1
2
Max
38
–
–
–
–
–
–
–
3
for details.
Electrical Characteristics
RTCCLK
RTCCLK
Units
ms
ms
ms
ms
ms
ms
ms
us
ns
1, 2
3
1, 2
3
4
Notes
20
20
20
20
21
20
20
20
21
23
21
23
21
23
Fig
617