參數(shù)資料
型號(hào): AT83C51RB2XXX-SLSIL
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: Microcontroller
中文描述: 8-BIT, MROM, 40 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁(yè)數(shù): 2/81頁(yè)
文件大?。?/td> 1082K
代理商: AT83C51RB2XXX-SLSIL
2
AT80C51RD2/AT83C51Rx2
4113A–8051–09/02
Table 1.
Memory Size
Block Diagram
Notes:
1. Alternate function of Port 1
2. Alternate function of Port 3
ROM (Bytes)
XRAM (Bytes)
TOTAL RAM
(Bytes)
I/O
AT83C51RB2
16K
1024
1280
32
AT83C51RC2
32K
1024
1280
32
AT80C51RD2
ROMless
1024
1280
32
Timer 0
Timer 1
INT
Ctrl
RAM
256x8
T
T
R
T
WR
RD
EA
PSEN
ALE/
XTAL2
XTAL1
EUART
+
BRG
CPU
I
I
(2)
(2)
C51
CORE
(2) (2)
(2) (2)
Port 0
P
Port 1 Port 2 Port 3
Parallel I/O Ports & Ext. Bus
P
P
P
XRAM
1Kx8
IB-bus
PCA
R
PROG
Watch
Dog
P
E
V
V
(2)
(2)
(1)
(1)
Timer2
T
T
(1)
(1)
ROM
32Kx8 or
16Kx8
Key
Board
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