- 您现在的位置：买卖IC网 > PDF目录381492 > AT80C51RB2-SLSIL (Atmel Corp.) 80C51 High Performance ROM 8-bit Microcontroller PDF资料下载
参数资料
| 型号： | AT80C51RB2-SLSIL |
| 厂商： | Atmel Corp. |
| 英文描述： | 80C51 High Performance ROM 8-bit Microcontroller |
| 中文描述： | 80C51的高性能ROM的8位微控制器 |
| 文件页数： | 4/83页 |
| 文件大小： | 672K |
| 代理商： | AT80C51RB2-SLSIL |
第1页第2页第3页当前第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页
4
AT80C51RD2/AT83C51Rx2
4113B–8051–03/05
Table 2.
Pin Description
Mnemonic
Pin Number
Type
Name and Function
DIL
PLCC44
VQFP44 1.4
V
SS
20
22
16
I
Ground:
0V reference
V
CC
40
44
38
I
Power Supply:
This is the power supply voltage for normal, idle and power-down
operation
P0.0 - P0.7
39 - 32
43 - 36
37 - 30
I/O
Port 0
: Port 0 is an open-drain, bi-directional I/O port. Port 0 pins that have 1s
written to them float and can be used as high impedance inputs. Port 0 must be
polarized to V
or V
in order to prevent any parasitic current consumption. Port
0 is also the multiplexed low-order address and data bus during access to external
program and data memory. In this application, it uses strong internal pull-up when
emitting 1s. Port 0 also inputs the code bytes during EPROM programming.
External pull-ups are required during program verification during which P0 outputs
the code bytes.
P1.0 - P1.7
1 - 8
2 - 9
40 - 44
1 - 3
I/O
Port 1:
Port 1 is an 8-bit bi-directional I/O port with internal pull-ups. Port 1 pins
that have 1s written to them are pulled high by the internal pull-ups and can be
used as inputs. As inputs, Port 1 pins that are externally pulled low will source
current because of the internal pull-ups. Port 1 also receives the low-order address
byte during memory programming and verification.
Alternate functions for T89C51RB2/RC2 Port 1 include:
1
2
40
I/O
P1.0
: Input/Output
I/O
T2 (P1.0):
Timer/Counter 2 external count input/Clockout
2
3
41
I/O
P1.1:
Input/Output
I
T2EX:
Timer/Counter 2 Reload/Capture/Direction Control
3
4
42
I/O
P1.2:
Input/Output
I
ECI:
External Clock for the PCA
4
5
43
I/O
P1.3:
Input/Output
I/O
CEX0:
Capture/Compare External I/O for PCA module 0
5
6
44
I/O
P1.4:
Input/Output
I/O
CEX1:
Capture/Compare External I/O for PCA module 1
6
7
1
I/O
P1.5:
Input/Output
I/O
CEX2:
Capture/Compare External I/O for PCA module 2
7
8
2
I/O
P1.6:
Input/Output
I/O
CEX3:
Capture/Compare External I/O for PCA module 3
8
9
3
I/O
P1.7:
Input/Output:
I/O
CEX4:
Capture/Compare External I/O for PCA module 4
XTAL1
19
21
15
I
Crystal 1:
Input to the inverting oscillator amplifier and input to the internal clock
generator circuits.
XTAL2
18
20
14
O
Crystal 2:
Output from the inverting oscillator amplifier
相关PDF资料 |
PDF描述 |
|---|---|
| AT80C51RB2-SLSIM | 80C51 High Performance ROM 8-bit Microcontroller |
| AT80C51RB2-SLSUL | 80C51 High Performance ROM 8-bit Microcontroller |
| AT80C51RB2-SLSUM | 80C51 High Performance ROM 8-bit Microcontroller |
| AT80C51RD2-3CSUM | 80C51 High Performance ROM 8-bit Microcontroller |
| AT80C51RD2-RLTUL | 80C51 High Performance ROM 8-bit Microcontroller |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT80C51RB2-SLSIM | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:80C51 High Performance ROM 8-bit Microcontroller |
| AT80C51RB2-SLSUL | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:80C51 High Performance ROM 8-bit Microcontroller |
| AT80C51RB2-SLSUM | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:80C51 High Performance ROM 8-bit Microcontroller |
| AT80C51RD2 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:80C51 High Performance ROM 8-bit Microcontroller |
| AT80C51RD2_05 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:80C51 High Performance ROM 8-bit Microcontroller |
发布紧急采购，3分钟左右您将得到回复。