4d Systems 2.8" TFT Intelligent Display $LCD-28PTU uLCD-28PTU 数据表
产品代码
uLCD-28PTU
4D SYSTEMS µLCD-28PTU
© 2014 4D SYSTEMS Page 20 of 22
www.4dsystems.com.au
www.4dsystems.com.au
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15. Specifications and Ratings
ABSOLUTE MAXIMUM RATINGS
Operating ambient temperature ................................................................................................... -15°C to +65°C
Storage temperature .......................................................................................................................... -30°C +70°C
Voltage on any digital input pin with respect to GND ....................................................................... -0.3V to 6.0V
Storage temperature .......................................................................................................................... -30°C +70°C
Voltage on any digital input pin with respect to GND ....................................................................... -0.3V to 6.0V
Voltage on SWITCH pin with respect to GND ................................................................................... -0.3V to 6.0V
Voltage on VCC with respect to GND ................................................................................................. -0.3V to 6.0V
NOTE: Stresses above those listed here may cause permanent damage to the device. This is a stress rating only
and functional operation of the device at those or any other conditions above those indicated in the
recommended operation listings of this specification is not implied. Exposure to maximum rating conditions
for extended periods may affect device reliability.
and functional operation of the device at those or any other conditions above those indicated in the
recommended operation listings of this specification is not implied. Exposure to maximum rating conditions
for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
Parameter
Conditions
Min
Typ
Max
Units
Supply Voltage (VCC)
4.0
5.0
5.5
V
Operating Temperature
-10
--
+60
°C
Input Low Voltage (VIL)
VCC = 3.3V, all pins
VGND
--
0.2VCC
V
Input High Voltage (VIH)
VCC = 3.3V, non 5V tolerant pins
0.8VCC
--
VCC
V
Input High Voltage (VIH)
All GPIO pins, RX0 and TX0 pins
0.8VCC
--
5.5
V
Reset Pulse
External Open Collector
2.0
--
--
µs
Operational Delay
Power-Up or External Reset
500
--
3000
ms
GLOBAL CHARACTERISTICS BASED ON OPERATING CONDITIONS
Parameter
Conditions
Min
Typ
Max
Units
Supply Current (ICC)
VCC = 5.0V, heavily depends on screen
usage conditions, sleep mode
usage conditions, sleep mode
10
120
200
mA
Output Low Voltage
(VOL)
(VOL)
VCC = 5.0V, IOL = 3.4mA
--
--
0.4
V
Output High Voltage
(VOH)
(VOH)
VCC = 5.0V, IOL = -2.0mA
2.8
--
--
V
Capacitive Loading
All pins
--
--
50
pF
Flash Memory
Endurance
Endurance
PICASO PmmC Programming
--
10000
--
E/W
TOUCH SCREEN CHARACTERISTICS
Parameter
Conditions
Min
Typ
Max
Units
Linearity
--
--
<1.5
%
Terminal Resistance X
X film side
300
400
800
Ohm
Terminal Resistance Y
Y film side
300
600
800
Ohm
Durability – Scratch Test
Stylus Pen or Finger Sliding
100
--
--
K
Durability – Tap Test
Stylus Pen or Finger Press
1
--
--
Million
Transparency
Non Glare
80
--
--
%