AT89C51AC3-RLTIM Atmel, AT89C51AC3-RLTIM Datasheet - Page 11
AT89C51AC3-RLTIM
Manufacturer Part Number
AT89C51AC3-RLTIM
Description
IC 8051 MCU FLASH 64K 44VQFP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C51AC3-RLTUM.pdf
(140 pages)
Specifications of AT89C51AC3-RLTIM
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-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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SFR Mapping
4383D–8051–02/08
Mnemonic
ACC
B
PSW
SP
DPL
DPH
Mnemonic
P0
P1
P2
P3
P4
Mnemonic
TH0
TL0
TH1
TL1
TH2
TL2
TCON
TMOD
Add Name
Add Name
Add Name
CDh
CCh
E0h Accumulator
F0h B Register
D0h Program Status Word
A0h Port 2
B0h Port 3
C0h Port 4 (x5)
8Ch
8Ah
8Dh
8Bh
81h Stack Pointer
82h
83h
80h Port 0
90h Port 1
88h
89h
Data Pointer Low
byte
LSB of DPTR
Data Pointer High
byte
MSB of DPTR
Timer/Counter 0 High
byte
Timer/Counter 0 Low
byte
Timer/Counter 1 High
byte
Timer/Counter 1 Low
byte
Timer/Counter 2 High
byte
Timer/Counter 2 Low
byte
Timer/Counter 0 and
1 control
Timer/Counter 0 and
1 Modes
The Special Function Registers (SFRs) of the AT89C51AC3 fall into the following
categories:
GATE1
TF1
CY
7
7
7
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
C/T1#
TR1
AC
6
6
6
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
TF0
M11
F0
5
5
5
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
P4.4 /
MOSI
RS1
TR0
M01
4
4
4
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
GATE0
P4.3 /
SCK
RS0
IE1
3
3
3
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
C/T0#
P4.2 /
MISO
OV
IT1
2
2
2
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
P4.1
M10
IE0
F1
1
1
1
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
P4.0
M00
IT0
0
0
0
P
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
11
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