12 CMX58886CX cpuModule BDM-610000050 Rev A

SVGA Port
VOH Output Voltage High
HSYNC, VSYNC
IOH = –32.0 mA 3.8 V 5.0 V
VOL Output Voltage Low
HSYNC, VSYNC
IOL = 32.0 mA 0.0 V 0.55 V
VOH Output Voltage High
DDC_*
IOH = –4.0 mA 2.4 V 3.3 V
VOL Output Voltage Low
DDC_*
IOL = 8.0 mA 0.0 V 0.4 V
VIH Input Voltage High
DDC_*
— 2.0 V 5.5 V
VIL Input Voltage Low
DDC_*
— -0.3 V 0.8 V
IDDCvcc Supply Current for
DDC Electronics
—02 A
Serial Ports - RS-232
VOH Output Voltage High RL = 3 k 5.0 V 10.0 V
VOL Output Voltage Low RL = 3 k -10.0 V -5.0 V
VIH Input Voltage High — 2.4 V 25 V
VIL Input Voltage Low — -25 V 0.8 V
Serial Ports - RS-422/485
VOD1 Differential Output RL = 50 Ohm 2.0 V 6.0 V
VOD2 Differential Output RL = 27 Ohm 1.5 V 6.0 V
VOC Common Mode
Output
RL = 27 or 50
Ohm
0.0 V 3.0 V
VTH Differential Input
Threshold
-7V < VCM < 7V -0.3 V 0.3 V
VIAbsolute Max Input
Voltage
— -25 V 25 V
multiPort - all modes
VOH Output Voltage High IOH = –4.0 mA 2.4 V 3.3 V
VOL Output Voltage Low IOL = 8.0 mA 0.0 V 0.4 V
VIH Input Voltage High2— 2.0 V 5.5 V
VIL Input Voltage Low2— -0.5 V 0.8 V
RTC Battery Voltage
VRTC Input RTC Voltage3— 2.0V 3.6 V
External Power Management (CN12) - PME#
VIH Input Voltage High — 2.0 V 3.3 V
VIL Input Voltage Low — -0.5 V 0.8 V
1. Applies to modes up to Ultr aDMA Mode 4 (ATA/66)
2. Maximum DC undershoot below ground must be limited to either 0.5V or 10mA. During
transitions, the device pins may undershoot to -2.0V or overshoot to 7.0V, provided it is less
than 10ns, with the forcing current limited to 200 mA.
3. Only required t o maintai n date and t ime when p ower is c ompletely removed from the sy stem.
Not required for board operation.
Table 4 Electrical Characteristics
Symbol Parameter Tes t C on di tio n Min. Max.