AT89C51CC03CA-7CTUM ATMEL [ATMEL Corporation], AT89C51CC03CA-7CTUM Datasheet - Page 32
AT89C51CC03CA-7CTUM
Manufacturer Part Number
AT89C51CC03CA-7CTUM
Description
Enhanced 8-bit MCU with CAN Controller and Flash Memory
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT89C51CC03CA-7CTUM.pdf
(197 pages)
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Reset
Introduction
Reset Input
32
AT89C51CC03
The reset sources are : Power Management, Hardware Watchdog, PCA Watchdog and
Reset input.
Figure 16. Reset Schematic
The Reset input can be used to force a reset pulse longer than the internal reset con-
trolled by the Power Monitor. RST input has a pull-down resistor allowing power-on
reset by simply connecting an external capacitor to V
value and input characteristics are discussed in the Section “DC Characteristics” of the
AT89C51CC03 datasheet. The status of the Port pins during reset is detailed in Table 9.
Figure 17. Reset Circuitry and Power-On Reset
RST
RST
a. RST input circuitry
VSS
Watchdog
Watchdog
Hardware
Monitor
Power
PCA
To internal reset
CC
as shown in Figure 17. Resistor
b. Power-on Reset
4182K–CAN–05/06
VDD
+
Internal Reset
RST
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