AK4186 AKM [Asahi Kasei Microsystems], AK4186 Datasheet - Page 6

• Manufacturer Part Number: AK4186
• Description: Low Power Touch Screen Controller with I2C Interface
• Manufacturer: AKM [Asahi Kasei Microsystems]

(Ta=-40°C to 85°C, VDD=1.6V to 3.6V)
Parameter
Internal OSCILATOR
Clock Frequency
Touch Panel (A/D Converter)
SCL clock frequency
Bus Free Time Between Transmissions
Start Condition Hold Time (prior to first Clock pulse)
Clock Low Time
Clock High Time
Setup Time for Repeated Start Condition
SDA Hold Time from SCL Falling
SDA Setup Time from SCL Rising
Rise Time of Both SDA and SCL Lines
Fall Time of Both SDA and SCL Lines
Setup Time for Stop Condition
Pulse Width of Spike Noise Suppressed By Input Filter
Capacitive load on bus
Note 7: Data must be held for sufficient time to bridge the 300ns transition time of SCL.
MS1068-E-04
SDA
SCL
Stop
tBUF
Start
tHD:STA
tLOW
(Note
tR
tHD:DAT
SWITCHING CHARACTERISTICS
7)
tHIGH
Figure 2. Timing Diagram
tSU:DAT tSU:STA
tF
- 6 -
Start
tHD:DAT
tHD:STA
tSU:DAT
tSU:STA
tSU:STO
Symbol
tHIGH
tLOW
tBUF
fSCL
f
tSP
Cb
OSC
tR
tF
min
2.5
0.6
1.3
0.6
1.3
0.6
0.1
0.6
0
0
-
-
-
-
tSP
tSU:STO
typ
3.6
-
-
-
-
-
-
-
-
-
-
-
-
-
Stop
VIH
VIL
VIH
VIL
max
400
400
5.1
0.3
0.3
50
-
-
-
-
-
-
-
-
[AK4186]
2011/03
Units
MHz
kHz
pF
μs
μs
μs
μs
μs
μs
μs
μs
μs
μs
ns