AT89C51AC3-SLSIM Atmel, AT89C51AC3-SLSIM Datasheet - Page 29

IC 8051 MCU FLASH 64K 44PLCC

AT89C51AC3-SLSIM

Manufacturer Part Number
AT89C51AC3-SLSIM
Description
IC 8051 MCU FLASH 64K 44PLCC
Manufacturer
Atmel
Series
89Cr
Datasheet

Specifications of AT89C51AC3-SLSIM

Core Processor
8051
Core Size
8-Bit
Speed
60MHz
Connectivity
UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
36
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
2.25K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT89C51AC3-SLSIM
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
AT89C51AC3-SLSIM
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Reset
Introduction
Reset Input
4383D–8051–02/08
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
AT89C51AC3 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
VDD
+
Internal Reset
RST
29

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