TSSIO16E ATMEL Corporation, TSSIO16E Datasheet - Page 14

• Manufacturer Part Number: TSSIO16E
• Description: Tssio16e Van Peripheral Circuit 16 Inputs-outputs
• Manufacturer: ATMEL Corporation

6.3
6.4
14
Internal Clock
Diagram of Input Protections
TSSIO16E
The internal clock is the main clock which controls all the state machines. It can be the safety
mode clock if the external clock H500 is connected to ground. It is generated by a ring oscillator
which frequency is given by this table:
The protections types are:
Temperature
Frequency
1kohm
10Mhz
-40
min
o
C
22Mhz
25
The triac T1 is activated by the
substract current of transitor T2
when the pad tension strongly
increases (ESD pulse).
typ
o
C
40Mhz
125
Max
4421B–ASSP–10/05
o
C