文档介绍：8051系列单片机参数总览
ANALOG DEVICES
Part
Files
CODE
XRAM
NVRAM
I/O
DPTR
UARTs
I2C
SPI
ADC
DAC
W/D
RTC
PWR
Mhz/Op/
ADuC816
PDF Home
8k F-ISP
n/a
n/a
32
1
1
Byte
Byte
16
12
Yes
No
3V 5V
16 / 12 / 16
2-Channel Dif Input 16-Bit ADC, 3-Channel SingleEnded Input 16-Bit ADC, Dual 12-Bit DACs
ADuC812
PDF Home
8k F-ISP
n/a
n/a
32
1
1
Byte
Byte
12
12
Yes
No
3V 5V
16 / 12 / 16
8-Channel 5us 12-Bit ADC, Dual 12-Bit DACs
ADuC824
PDF Home
8k F-ISP
n/a
n/a
32
1
1
Byte
Byte
24
12
Yes
No
3V 5V
16 / 12 / 16
2-Channel Dif Input, 24-Bit ADC, 3-Channel Single-Ended Input 16-Bit ADC, Dual 12-Bit DACs
ADuC814
PDF Home
8k F-ISP
n/a
n/a
32
1
1
Byte
Byte
12
12
Yes
No
3V 5V
16 / 12 / 16
6-Channel 5us 12-Bit ADC, Dual 12-Bit DACs
ATMEL
Part
Files
CODE
XRAM
NVRAM
I/O
DPTR
UARTs
I2C
SPI
ADC
DAC
W/D
RTC
PWR
Mhz/Op/
T89C51AC2
PDF Home
32k F-ISP
1k
n/a
32
2
1
Byte
No
10
n/a
Yes
No
5V
20 / 6 / 40
AT89C51
PDF Home
4k F-ISP
n/a
n/a
32
1
1
No
No
n/a
n/a
No
No
5V
24 / 12 / 24
AT89C51RC
PDF Home
32k F-ISP
256
n/a
32
2
1
No
No
n/a
n/a
Yes
No
5V
33 / 12 / 33
AT89LV55
PDF Home
20k F
n/a
n/a
32
1
1
No
No
n/a
n/a
No
No
3V 5V
12 / 12 / 12
AT89C4051
PDF Home
4k F
n/a
n/a
15
1
1
No
No
n/a
n/a
No
No
3V 5V
24 / 12 / 24
AT87F55WD
PDF Home
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