US 7,321,235 B2
Input circuit for an integrated circuit
Markus Krach, Freising (Germany)
Assigned to Infineon Technologies AG, Munich (Germany)
Filed on Dec. 01, 2005, as Appl. No. 11/291,514.
Claims priority of application No. 10 2004 057 819 (DE), filed on Dec. 01, 2004.
Prior Publication US 2006/0150039 A1, Jul. 06, 2006
Int. Cl. G01R 31/02 (2006.01)
U.S. Cl. 324—765  [324/763] 10 Claims
OG exemplary drawing
 
1. An integrated circuit, comprising:
a functional circuit;
a setting memory for storing a setting data item; and
an input circuit for receiving signals via an input terminal, the input circuit comprising a first receiving circuit having a first hysteresis and a second receiving circuit having a second hysteresis; the input circuit selectively connecting either the first or the second receiving circuit to the input terminal depending on a value of the setting data item in order to receive the signals and to provide the functional circuit with the signals.