AK4160 AKM [Asahi Kasei Microsystems], AK4160 Datasheet - Page 7

• Manufacturer Part Number: AK4160
• Description: 16-channel Capacitive Touch Sensor IC
• Manufacturer: AKM [Asahi Kasei Microsystems]

Parameter
Touch Sensor
Charge Time (
Sampling Rate (
PWM
Frequency Accuracy
Reset Timing
Reset Pulse Width (
Reset Pin Pulse Width of Spike Noise
Start Up Timing
Power up time (
Power up rise time
Power up Interval time (
I
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 16. Variation against nominal value of TCHG (0.25us to 32us)
Note 17. Variation against nominal value of TSR (4ms to 512ms)
Note 18. The AK4160 can be reset by the RSTN pin = “L”. This is to initialize the AK4160 for sure.
Note 19. Pulse width of spike noise suppressed by input filter of the RSTN pin.
Note 20. Time as the starting point when reached VDD=1.71V and VREG=1.0V, with CREG=47nF.
Note 21. The condition of “VDD=VSS” should be kept during the Power up Interval Time.
Note 22. Data must be held for sufficient time to bridge the 300ns transition time of SCL.
MS1313-E-01
(Ta = -40°C ~ 85°C, VDD = 1.71V ~ 3.6V; unless otherwise specified)
2
C
Suppressed by Input Filter (
Note 16
RSTN
Note 20
Note 17
Note 18
)
)
)
Note 21
)
)
Note 19
Note 22
SWITCHING CHARACTERISTICS
)
)
Figure 2. Reset Timing Diagram
tRSTN
- 7 -
tHD:DAT
tHD:STA
tSU:DAT
tSU:STA
tSU:STO
tRSTNS
Symbol
tRSTN
tHIGH
TCHG
ACCF
tLOW
fSCL
tBUF
TSR
tPU
tPR
tSP
tPI
Cb
tR
tF
tRSTNS
min
-15
-35
-35
0.5
1.3
0.6
1.3
0.6
0.6
0.1
0.6
10
20
50
0
-
-
-
-
-
-
VIL
typ
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
max
400
400
0.3
0.3
15
35
35
20
1
-
-
-
-
-
-
-
-
-
-
-
-
[AK4160]
2011/11
Units
kHz
ms
ms
ms
pF
us
us
μs
μs
μs
μs
μs
μs
μs
μs
μs
μs
ns
%
%
%