LM8400 National Semiconductor, LM8400 Datasheet - Page 7

• Manufacturer Part Number: LM8400
• Description: Four Wire Resistive Touchscreen Controller with Brownout
• Manufacturer: National Semiconductor

Operating Voltage
Power Supply Rise Time
Power Supply Ripple (Note 4)
Supply Current (Note 5)
High Speed Mode
HALT Current with BOR Disabled (Note 6)
Supply Current for BOR Feature
High Brownout Trip Level (BOR Enabled)
Low Brownout Trip Level (BOR Enabled)
Input Levels (V
Internal Bias Resistor for the CKI
Crystal/Resonator Oscillator
Hi-Z Input Leakage
Input Pullup Current
Port Input Hysteresis
Output Current Levels
Outputs X+, X-, Y+, Y-
All Others
TRI-STATE Leakage
Maximum Input Current without Latchup
RAM Retention Voltage, V
Input Capacitance
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
3.0 Electrical Characteristics
Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
CKI = 10 MHz
CKI = 3.33 MHz
High Speed Mode
Logic High
Logic Low
Source (Note 7)
Sink (Note 7)
Allowable Sink and Source Current per Pin
Source (Weak Pull-Up Mode)
Source (Push-Pull Mode)
Sink (Push-Pull Mode) (Note 7)
Allowable Sink and Source Current per Pin
Supply Voltage (V
Voltage at Any Pin
Total Current into V
IH
, V
Parameter
IL
CC
)
CC
)
Pin (Source)
R
(in HALT Mode)
TABLE 1. DC Electrical Characteristics (0˚C ≤ T
−0.3V to V
(Note 3)
CC
Peak-to-Peak
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
200 mA
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
+0.3V
= 5.5V
= 4.5V
= 5.5V, CKI = 0 MHz
= 5.5V
= 5.5V
= 5.5V, V
= 4.5V, V
= 2.7V, V
= 4.5V, V
= 2.7V, V
= 4.5V, V
= 2.7V, V
= 4.5V, V
= 2.7V, V
= 4.5V, V
= 2.7V, V
= 5.5V
7V
Conditions
7
IN
OH
OH
OL
OL
OH
OH
OH
OH
OL
OL
Note 3: Absolute maximum ratings indicate limits beyond which damage to
the device may occur. DC and AC electrical specifications are not ensured
when operating the device at absolute maximum ratings.
= 0V
Total Current out of GND Pin (Sink)
Storage Temperature Range
ESD Protection Level
= 0.3V
= 0.3V
= 1.0V
= 0.4V
= 4.2V
= 2.4V
= 3.8V
= 1.8V
= 3.8V
= 1.8V
A
0.25 V
0.8 V
≤ +70˚C)
4.17
−0.5
−0.5
Min
−50
−10
−10
2.7
2.7
0.3
3.5
2.0
10
−6
10
−5
−7
−4
10
6
CC
CC
4.28
2.78
Typ
1.0
<
2
2 kV (Human Body
Model)
−65˚C to +140˚C
0.16 V
50 x 10
0.1 V
±
−210
Max
+0.5
+0.5
11.5
5.5
4.5
2.9
2.5
10
45
20
15
200
5
7
www.national.com
CC
CC
6
200 mA
Units
MΩ
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
µA
µA
µA
µA
µA
µA
µA
pF
ns
V
V
V
V
V
V
V
V