NT6868C Datasheet, PDF (8/15 Pages) List of Unclassifed Manufacturers – Keyboard Controller

NT6868C
Absolute Maximum Ratings*
DC Supply Voltage . . . . . . . . . . . . . . -0.3V to +7.0V
Input/Output Voltage . . . . . . GND -0.2V to VD D + 0.2V
Operating Ambient Temperature . . . . . . 0 ° C to +70°C
Storage Temperature . . . . . . . . . . . . . -55°C to +125°C
Operating Voltage (VD D ) . . . . . . . . . .+4.5V to 5.5V
*Comments
Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to this device.
These are stress ratings only. Functional operation of
this device at these or any other conditions above those
indicated in the operational sections of this specification
is not implied or intended. Exposure to the absolute
maximum rating conditions for extended periods may
affect device reliability.
DC Electrical Characteristics (VDD = 5V, GND = 0V, TA = 25°C, FOSC = 4MHz, unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
Conditions
ICC
Power Supply Current
20
mA
No load
VIH
Input High Voltage
2
V
VIL
Input Low Voltage
0.8
V
VOH1
Output High Voltage (Port 0, 1, 2, 3)
2.4
V
IOH = -100µA
VOH2
Output High Voltage (CLK, DATA)
2.4
V
IOH = -400µA, Note 1
VOH3
Output High Voltage (CLK, DATA)
2.4
V
IOH = -800µA, Note 2
VOL1
Output Low Voltage (PORT 0, 1, 2)
0.4
V
IOL = 4mA
VOL2
Output Low Voltage (PORT 3)
0.4
V
IOL = 5mA
VOL3
Output Low Voltage (CLK, DATA)
0.4
V
IOL = 10mA
∆F/F
Initial Frequency Variation 1
+/-10
%
For RC OSC option
only; By Lots
∆F/F
Frequency Variation 2
+/-1
%
For ceramic resonator
option only; By Lots
ILED
LED Sink Current (LED 0, 1, 2)
10
14
17
mA
VOL = 3.2V
VLVR
Low Voltage Reset Threshold
3.0
V
TPOR
TRSTB
Power-on Reset Time
RESET Input Low Pulse Width
120
150
180
ms
2.5
µs
10 system clocks
RPH
RESET Pull High Resistor
220
KΩ
Note 1: There are 2 types of DATA/CLK driving capabilities. This condition of VOH2 is the same as the specification of
NT6868A. Under this condition, the user can select mask option 1 or 3.
Note 2: The driving capability of DATA/CLK is higher than V OH2. Under this condition, the user can select mask option 5 or
7.
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