VRS700-PLI23 데이터 시트보기 (PDF) - Unspecified
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VRS700-PLI23 Datasheet PDF : 45 Pages
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VRS700
VERSA
Datasheet Rev 1.3
Overview
The VRS700 is a 3V, 8-bit microcontroller with 64kB of
Flash memory and 4K RAM that is based on the
architecture of the standard 80C51 microcontroller
family. It is pin compatible with these devices.
Among the VRS700’s features are 8 PWM outputs, a
Watch Dog Timer, bank mapping to permit direct
addressing of the 4096 bytes of RAM and a serial port.
The VRS700’s hardware features and powerful
instruction set make it a versatile and cost-effective
controller for a wide range of applications requiring a
microcontroller running at 3V.
The Flash memory can be programmed using
programmers available from Goal Semiconductor or
other 3rd party commercial programmers.
The VRS700 is available in PLCC-44 and QFP-44
packages in the Industrial Temperature Range.
FIGURE 1: VRS700 BLOCK DIAGRAM
Features
• Operating voltage: 3.0V ~ 3.6V
• General 80C51/80C52 family compatible
• 64kB on-chip Flash memory
• 4096 bytes on-chip data RAM
• Bank mapping direct addressing mode to access RAM
• Four 8-bit I/O ports + one 4-bit I/O port
• 8-Channel PWM on P1.0~P1.7
• Full duplex serial port (UART)
• Three 16-bit Timers/Counters
• Watch Dog Timer
• 8-bit Unsigned Multiply and Division Instructions
• BCD arithmetic
• Direct and Indirect Addressing
• Two levels of Interrupt Priority and Nested Interrupts
• Power saving modes
• Code protection functions
• Operates at a clock frequency from 3MHz to 23MHz
• Low EMI (inhibit ALE)
• Industrial Temperature Range (-40ºC to +85ºC)
FIGURE 2: VRS700 PLCC-44 AND QFP-44 PIN OUT DIAGRAMS
8051
PROCESSOR
A DDRE SS /
DATA BUS
64kx8
FLASH
4096 Bytes of
RAM
PORT 0
8
PORT 1
8
UART
PORT 2
8
2 INTERRUPT
INPUTS
PORT 3
8
TIMER 0
TIMER 1
TIMER 2
POWER
CONTROL
PORT 4
4
RESET
WATCHDOG
TIMER
PWM
8
6
PWM5/P1.5
7
PWM6/P1.6
PWM7/P1.7
RES
RXD/P 3.0
P4.3
TXD/P3.1
# INT0/ P3.2
# INT1/ P3. 3
T0/P3.4
T1/P3.5
17
18
VRS700
PLCC-44
40
39
P0.4/AD4
P 0.5 /AD5
P0.7/AD7
P0. 6/A D6
#EA
P4.1
ALE
#P SEN
P2. 7/A 15
29
28
P2.6/A14
P2.5/A13
P0.3/AD3
33
34
P0.2/AD2
P0. 1/A D1
P0.0/AD0
VDD
P4 .2
SPWM0/ T2/P1 .0
SPWM1/ T2EX/P1 .1
SPWM2/P1 .2
SPWM3/P1 .3
SPWM4/P1 .4
44
1
VRS700
QFP-44
23
22
P2.4/A12
P2.3/A11
P2.2/A10
P2.1/A9
P2.0/A8
P4.0
VSS
XTA L1
XTA L2
#RD/P3.7
12
#WR/P3.6
11
1134 Ste Catherine Street West, Suite 900, Montreal, Quebec, Canada H3B 1H4 Tel: (514) 871-2447 http://www.goalsemi.com
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