MCS9845 MosChip Semiconductor, MCS9845 Datasheet - Page 25

• Manufacturer Part Number: MCS9845
• Description: PCI Dual UART
• Manufacturer: MosChip Semiconductor

Rev. 2.5
DC Electrical Characteristics (5V Operation)
Ambient Temp = 0 to +70 °C, V
Symbol
Vt-
Vt+
Vt-
Vt+
Vi
Vi
Vi
Vi
Vo
Vo
Ri
L
H
L
H
L
H
Input Pull-Up/Pull-Down Resistance
Negative-Going Threshold Voltage
Negative-Going Threshold Voltage
Positive-Going Threshold Voltage
Positive-Going Threshold Voltage
Output Voltage (High)
Output Voltage (Low)
Input Voltage (High)
Input Voltage (High)
Input Voltage (Low)
Input Voltage (Low)
Schmitt Trigger
Schmitt Trigger
Schmitt Trigger
Schmitt Trigger
Parameter
CC
= 4.75 to 5.25 V, Tj = 0 to +115 °C unless otherwise specifi ed.
0.7 *
Min
Vcc
2.0
3.5
PCI Dual UART with ISA Bridge
1.84
3.22
1.10
1.87
Typ
50
0.3 *
Max
Vcc
0.8
0.4
MCS9845
Unit
KΩ
V
V
V
V
V
V
V
V
V
V
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Io
Io
Vi
Condition
Vi
L
H
CMOS
CMOS
CMOS
CMOS
L
= 2 to 24
= 2 to 24
H
TTL
TTL
TTL
TTL
mA
mA
= 0V or
= Vcc
Page 25