AT94K05AL-25DQU Atmel, AT94K05AL-25DQU Datasheet - Page 64

• Manufacturer Part Number: AT94K05AL-25DQU
• Manufacturer: Atmel

Specifications of AT94K05AL-25DQU

• Device System Gates: 5000
• Propagation Delay Time: 12.1ns
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Operating Temperature Classification: Industrial
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Mounting: Surface Mount
• Pin Count: 208
• Package Type: PQFP
• Lead Free Status / RoHS Status: Compliant

4.16.2
64
AT94KAL Series FPSLIC
Power-on Reset
Table 4-7.
Note:
A Power-on Reset (POR) circuit ensures that the device is reset from power-on. As shown in
Figure
from starting until after a certain period after V
V
Figure 4-13. MCU Start-up, RESET Tied to V
Figure 4-14. Watchdog Reset during Operation
Symbol
V
V
T
POT
TOUT
POT(1)
RST
RESET TIME-OUT
, regardless of the V
INTERNAL RESET
INTERNAL RESET
4-12, an internal timer clocked from the Watchdog Timer oscillator prevents the MCU
WDT TIME-OUT
1. The Power-on Reset will not work unless the supply voltage has been below V
RESET (HIGH)
V
TIME-OUT
CC
Reset Characteristics (V
Parameter
Power-on Reset Threshold
(Rising)
Power-on Reset Threshold
(Falling)
RESET Pin Threshold
Voltage
Reset Delay Time-out Period
RESET
(HIGH)
V
CC
CC
rise time (see
V
V
CC
POT
RST
1 XTAL CYCLE
= 3.3V)
Figure 4-13
t
t
TOUT
TOUT
Minimum
CC
CC
12.8
1.0
0.4
0.4
3.2
has reached the Power-on Threshold voltage –
and
Figure
Typical
V
16.0
1.4
0.6
0.5
4.0
CC
5
/2
4-14).
Maximum
19.2
1.8
0.8
0.6
4.8
POT
1138I–FPSLI–1/08
(falling).
cycles
Units
CPU
ms
V
V
V