AT89C51AC2-RLTUM Atmel, AT89C51AC2-RLTUM Datasheet - Page 13

• Manufacturer Part Number: AT89C51AC2-RLTUM
• Description: IC 8051 MCU FLASH 32K 44VQFP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51AC2-RLTUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 1.25K 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
• Processor Series: AT89x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 1280 B
• Interface Type: UART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 34
• Number Of Timers: 3
• Operating Supply Voltage: 3 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• For Use With: AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 11. SFR Mapping
Reserved
Note:
4127H–8051–02/08
F8h
F0h
E8h
E0h
D8h
D0h
C8h
C0h
B8h
B0h
A8h
A0h
98h
90h
88h
80h
1. These registers are bit
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
00x0 0000
x000 0000
xxxx xx0x
xxxx xx0x
xxxx xx11
1111 1111
1111 1111
1111 1111
1111 1111
T2CON
CCON
SCON
TCON
0/8
IEN1
PSW
IEN0
0/8
IPL1
ACC
IPL0
Sixteen addresses in the SFR space are both byte
whose address ends in 0 and 8. The bit addresses, in this area, are 0x80 through to 0xFF.
P4
P3
P2
P1
P0
B
(1)
(1)
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0111
00xx x000
xxxx xx00
T2MOD
SADEN
SADDR
CMOD
FCON
TMOD
SBUF
1/9
CH
SP
1/9
CL
–
addressable.
0000 0000
0000 0000
x000 0000
0000 0000
0000 0000
0000 0000
xxx0 0000
xxxx xx00
xxxx 00x0
CCAP0H
CCAPM0
CCAP0L
RCAP2L
EECON
ADCLK
AUXR1
DPL
TL0
2/A
2/A
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
x000 0000
x000 0000
CCAPM1
CCAP1H
RCAP2H
CCAP1L
ADCON
DPH
TL1
3/B
3/B
–
addressable and bit
0000 0000
0000 0000
0000 0000
x000 0000
0000 0000
0000 0000
CCAPM2
CCAP2H
CCAP2L
ADDL
TH0
TL2
4/C
4/C
–
addressable. The bit
0000 0000
0000 0000
0000 0000
x000 0000
0000 0000
0000 0000
CCAP3H
CCAPM3
CCAP3L
ADDH
TH2
TH1
5/D
5/D
0000 0000
0000 0000
0000 0000
x000 0000
x00x 1100
WDTRST
1111 1111
CCAPM4
CCAP4H
CCAP4L
AUXR
ADCF
6/E
6/E
–
addressable SFR’s are those
x000 0000
0000 0000
00x1 0000
WDTPRG
xxxx x000
xxxx xx0x
CKCON
PCON
IPH1
IPH0
7/F
7/F
DFh
CFh
FFh
F7h
EFh
E7h
D7h
C7h
BFh
B7h
AFh
A7h
9Fh
8Fh
97h
87h
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