ST52T400/T440/E440/T441
11.11 Control Pin Characteristics
11.11.1 RESET pin.
Subject to general operating conditions for VDD, fosc, and TA, unless otherwise specified
Table 11.13 Reset pin
Symbol
VIL
VIH
Vhys
Parameter
Input low level voltage1)
Input high level voltage1)
Schmitt trigger voltage hysteresis2)
Conditions
VDD= 5 V
VDD= 5 V
VDD= 5 V
Min
Typ Max Unit
2.23)
2.83)
V
0.63)
tFN
Duration of filtered noise
tRST
Reset pulse duration
100
nS
500
11.11.2 Power on reset.
Table 11.14 Power on reset
Symbol
POR
Parameter
Power on reset
Conditions
Min Typ
Max
Unit
2.25 2.30 2.38
V
11.11.3 VPP pin.
Subject to general operating conditions for VDD, fosc, and TA,unless otherwise specified.
Table 11.15 VPP4) pin
Symbol
Parameter
Conditions
Min
Typ Max Unit
VIL
Input low level voltage3)
VIH
Input high level voltage3)
VSS
VDD-0.1
0.2
V
12.6
Notes:
1. Data is based on characterization results, not tested in production.
2. Hysteresis voltage between Schmitt trigger switching level.
Based on characterization results not tested in production.
3. Data is based on design simulation and/or technology characteristics, not tested in production.
4. In working mode VPP must be tied to VSS
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