TTP258
TonTouchTM
Preliminary
§ Pin Description:
Pin Name
Share Pin
I/O Pin no. Mask Option
Pin Description
VDD
-
-
Power +1
Power +1
-
-
-
Positive power supply
VSS
Negative power supply, ground
External reset input, active low,
50kΩ pull-up( VDD =5v)
RSTB
-
I
+1
PA0
PA1
PA2
INT0/PWM0/VPP IO
+3
-
I/O port with external interrupt
INT1/PWM1
PWM2
IO
IO
input
and
PWM
output
(PA0,PA1). PA2 is shared with
internal PWM2 output.
PB0
PB1
TP8
TP9
IO/I
IO/I
+2
+4
-
-
IO port or touch pad input.
PC0
PC1
PC2
PC3
PD0
PD1
PD2
PD3
CAP
TP0
TP1
TP2
TP3
TP4
TP5
TP6
TP7
-
IO/I
IO/I
IO/I
IO/I
IO/I
IO/I
IO/I
IO/I
O
IO port or touch pad input.
IO port or touch pad input.
+4
+1
-
-
-
-
Touch signal output
LDO Voltage output
VREG
Power +1
18
16’/04/06
Page 5 of 44
Ver.: 1.2
TTELEC [ TT Electronics ]
