Table 4 electrical characteristics – IBM BDM-610000049 User Manual
Page 24
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CMX158886 cpuModule
BDM-610000049
Rev G
SVGA Port
V
OH
Output Voltage High
HSYNC, VSYNC
I
OH
= –32.0 mA
3.8 V
5.0 V
V
OL
Output Voltage Low
HSYNC, VSYNC
I
OL
= 32.0 mA
0.0 V
0.55 V
V
OH
Output Voltage High
DDC_*
I
OH
= –4.0 mA
2.4 V
3.3 V
V
OL
Output Voltage Low
DDC_*
I
OL
= 8.0 mA
0.0 V
0.4 V
V
IH
Input Voltage High
DDC_*
—
2.0 V
5.5 V
V
IL
Input Voltage Low
DDC_*
—
-0.3 V
0.8 V
I
DDCvcc
Supply Current for
DDC Electronics
—
100 mA
Serial Ports - RS-232
V
OH
Output Voltage High
R
L
= 3 k
5.0 V
10.0 V
V
OL
Output Voltage Low
R
L
= 3 k
-10.0 V
-5.0 V
V
IH
Input Voltage High
—
2.4 V
25 V
V
IL
Input Voltage Low
—
-25 V
0.8 V
Serial Ports - RS-422/485
V
OD1
Differential Output
R
L
= 50 Ohm
2.0 V
6.0 V
V
OD2
Differential Output
R
L
= 27 Ohm
1.5 V
6.0 V
V
OC
Common Mode
Output
R
L
= 27 or 50
Ohm
0.0 V
3.0 V
V
TH
Differential Input
Threshold
-7V < V
CM
< 7V
-0.3 V
0.3 V
V
I
Absolute Max Input
Voltage
—
-25 V
25 V
multiPort - all modes
V
OH
Output Voltage High
I
OH
= –4.0 mA
2.4 V
3.3 V
V
OL
Output Voltage Low
I
OL
= 8.0 mA
0.0 V
0.4 V
V
IH
Input Voltage High
2
—
2.0 V
5.5 V
V
IL
Input Voltage Low
—
-0.5 V
0.8 V
I
ADIOvcc
Supply current
—
500 mA
Utility Port Connector (CN5)
V
RTC
Input RTC Voltage
3
—
2.0V
3.6 V
I
UTILvcc
Utility Supply
Current
—
500 mA
External Power Management (CN12) - PME#
V
IH
Input Voltage High
—
2.0 V
5.5 V
V
IL
Input Voltage Low
—
-0.5 V
0.8 V
1. Applies to modes up to UltraDMA Mode 4 (ATA/66)
Table 4
Electrical Characteristics
Symbol
Parameter
Test Condition
Min.
Max.