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VRS51L580-40-P-G

更新时间： 2025-09-06 07:05:47
品牌 Logo 应用领域
其他 - ETC /
页数 文件大小 规格书
49页 2071K
描述
Versa 8051 MCUs with 32/64KB

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VRS51L580-40-P-G 数据手册

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VRS51x570/580  
Datasheet  
Rev 1.2  
Versa 8051 MCUs with 32/64KB  
Overview  
Feature Set  
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80C51/80C52 pin compatible  
The VRS51x570 and the VRS51x580 are low cost 8-bit  
microcontrollers based on the standard 80C51  
12 clock periods per machine cycle  
32KB / 64KB on-chip Flash memory  
1024 Bytes on-chip data RAM  
36 I/O lines: P0-P3 = 8-bit, P4 = 4-bit  
5-Channel PWM on P1.3 to P1.7  
Full duplex serial port (UART)  
Three 16-bit Timers/Counters  
Watch Dog Timer  
8-bit Unsigned Division / Multiply  
BCD arithmetic  
Direct and Indirect Addressing  
Two levels of interrupt priority and nested interrupts  
Power saving modes  
Code protection function  
microcontroller family architecture.  
They are pin  
compatible and drop-in replacements for most 8051  
MCUs.  
Ideal for a wide range of applications requiring large  
amounts of program/data memory, coupled with  
comprehensive peripheral support, the VRS51x570/580  
devices include 32KB/64KB of Flash memory,  
respectively, and 1KB of SRAM, 5 PWM output  
channels, a UART, three 16-bit timers, a Watch Dog  
timer and power down features.  
These devices also include a fifth, 4-bit, I/O port mapped  
into the “no connect” pins of the standard 8051/52  
package. This provides a total of 36 I/Os while  
maintaining compatibility with standard 80C51/52 pin  
outs.  
Operates at a clock frequency of up to 40MHz  
Low EMI (inhibit ALE)  
Programming voltage: 12V  
Industrial Temperature range (-40°C to +85°C)  
5V and 3V versions available (see Ordering information.)  
FIGURE 2: VRS51X570 / VRS51X580 PLCC AND QFP PINOUT DIAGRAMS  
The VRS51x570 and VRS51x580 are available in  
PLCC-44, QFP-44 and DIP-40 packages in the Industrial  
temperature range. The Flash memory can be  
programmed using programmers from Ramtron or other  
3rd party commercial programmer suppliers.  
6
40  
7
1
PWM2/P1.5  
39  
P0.4/AD4  
P0.5/AD5  
P0.6/AD6  
P0.7/AD7  
#EA  
PWM3/P1.6  
PWM4/P1.7  
RESET  
FIGURE 1: VRS51X570 / VRS51X580 FUNCTIONAL DIAGRAM  
RXD/P3.0  
P4.3  
VRS51x570/580  
PLCC-44  
P4.1  
TXD/P3.1  
#INT0/P3.2  
ALE  
#PSEN  
P2.7/A15  
P2.6/A14  
P2.5/A13  
#INT1/P3.3  
T0/P3.4  
T1/P3.5  
8051  
17  
18  
29  
ADDRESS/  
28  
PROCESSOR  
DATA BUS  
64KB  
FLASH  
PORT 0  
8
8
8
8
4
1024 Bytes of  
RAM  
PORT 1  
PORT 2  
PORT 3  
PORT 4  
UART  
33  
23  
22  
34  
P0.3/AD3  
P2.4/A12  
P0.2/AD2  
P0.1/AD1  
P2.3/A11  
P2.2/A10  
2 INTERRUPT  
INPUTS  
P0.0/AD0  
VDD  
P2.1/A9  
P2.0/A8  
P4.0  
VRS51x570/580  
QFP-44  
P4.2  
TIMER 0  
TIMER 1  
TIMER 2  
T2/P1.0  
VSS  
T2EX/P1.1  
P1.2  
XTAL1  
XTAL2  
POWER  
CONTROL  
PWM0/P1.3  
PWM1/P1.4  
#RD/P3.7  
#WR/P3.6  
44  
12  
11  
1
WATCHDOG  
TIMER  
RESET  
PWM  
5
Ramtron International Corporation  
1850 Ramtron Drive Colorado Springs  
Colorado, USA, 80921  
http://www.ramtron.com  
MCU customer service: 1-800-943-4625, 1-514-871-2447, ext. 208  
1-800-545-FRAM, 1-719-481-7000  
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