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

• Manufacturer Part Number: AT94K05AL-25AJI
• Description: IC FPSLIC 5K GATE 25MHZ 84PLCC
• Manufacturer: Atmel
• Series: FPSLIC®r

Specifications of AT94K05AL-25AJI

• Core Type: 8-bit AVR
• Speed: 25MHz
• Interface: I²C, UART
• Program Sram Bytes: 4K-16K
• Fpga Sram: 2kb
• Data Sram Bytes: 4K ~ 16K
• Fpga Core Cells: 256
• Fpga Gates: 5K
• Fpga Registers: 436
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 84-PLCC
• For Use With: ATSTK594 - BOARD FPSLIC DAUGHTER FOR STK500
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

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