VMX1C1020 Datasheet, PDF (1/80 Pages) List of Unclassifed Manufacturers – Versa Mix 8051 Mixed-Signal MCU

VMX1C1020
Datasheet
Rev 2.12
Versa Mix 8051 Mixed-Signal MCU
Overview
The VMX51C1020 is a fully integrated mixed-signal
microcontroller that provides a “one-chip solution” for
a broad range of signal conditioning, data acquisition,
processing, and control applications.
The
VMX51C1020 is based on a powerful single-cycle,
RISC-based, 8051 microprocessor with an enhanced
MULT/ACCU unit that can be used to perform
complex mathematical operations.
On-chip analog peripherals such as: an A/D
converter, PWM outputs (that can be used as D/A
converters), a voltage reference, a programmable
current source, an uncommitted operational amplifier,
digital potentiometers and an analog switch makes
the VMX51C1020 ideal for analog data acquisition
applications.
The inclusion of a full set of digital interfaces such as
an enhanced fully configurable SPI, an I²C interface,
UARTs and a J1708/RS-485/RS-422 compatible
differential transceiver, enables total system
integration.
Applications
o Automotive Applications
o Industrial Controls / Instrumentation
o Consumer Products
o Intelligent Sensors
o Medical Devices
FIGURE 1: VMX51C1020 BLOCK DIAGRAM
8051
µPROCESSOR
SINGLE CYCLE
Programmable
Current Source
In-Circuit
Debugging
through UART0
2 UARTs
Serial Ports
12-BIT A/D
CONVERTER
XTVREF Input
ISRCIN, ISRCOUT, OPOUT are
internally connected to A /D Input
Multiplexer
Band gap
Reference
PGA
4 ₈P_{/ 41}W₆4PM_biW4tP_ROWP_eMsuW_oMt_lDupM_tiuD/_oAntD/ssA/sA ^s
(C a n b e u s e d a s D /A s)
Operational
Amplifier
1 DIGITALLY
CONTROLLED
SWITCH
2 DIGITAL
POTENTIOMETERS
56KB
Program FLASH
( In-Circuit Programmable )
1280 Bytes RAM
(256x 8 & 1k X8)
· 2 Interrupt inputs
· 28 I/O s,
· Interrupt on
Port1 change
· 3 Timers,
· 2 Baud Rate
Generators
· 4 CCU units
[M U L T / A C C U]
Unit with
BARREL
SHIFTER
SPI Interface
XTAL
J1708 /R S 485/
RS422
Compatible
Transceiver
Clock Control Unit
I²C Bus
Interface
Power On Reset
Circuit
+
WatchDog Timer
Feature Set
o 8051 Compatible RISC performance Processor.
o Integrated Debugger
o 56KB Flash Program Memory
o 1280 Bytes of RAM
o MULT/ACCU unit including a Barrel Shifter
o Provides DSP capabilities
o 2 UART Serial Ports
o 2 Baud Rate Generators for UARTs
o Differential Transceiver connected to UART1
J1708/RS-485/RS-422 compatible.
o Enhanced SPI interface (Master/Slave)
o Fully Configurable
o Controls up to 4 slave devices
o I2C interface
o 28 General Purpose I/Os
o 2 External Interrupt Inputs
o Interrupt on Port 1 pin change
o 3, 16-bit Timers/Counters
o 4 Compare & Capture Units with 3 Capture Inputs
o 4 PWM outputs, 8-bit / 16-bit resolution
o 4 ext. + 3 int. Channel 12-bit A/D Converter
o Conversion rate up to 10kHz
o 0-2.7 Volt Input range Continuous /
One-Shot operation
o Single or 4-channel automatic
sequential conversions
o On-Chip Voltage Reference
o Programmable Current Source
o Operational Amplifier
o 2 Digital Potentiometers
o 1 Digitally Controlled Switch
o Power Saving Features + Clock Control
o Power-on Reset with Brown-Out Detect
o Watchdog Timer
FIGURE 2: VMX51C1020 QFP-64 PACKAGE PINOUT
4
AGND
8
49
33
32
P1.5
INT0
P1.4
PM
VDD
RES-
P2.7 – SDI
ISRCOUT – TA
P2.6 – SDO
ISRCIN
P2.5 – SCK
POT2A
P2.4 – SS-
POT2B
VDDA
VMX51C1020
P2.3 – CS0-
P2.2 – CS1-
ADCI3
P2.1 – CS2-
ADCI2
P2.0 – CS3-
ADCI1
DGND
ADCI0
INT1
XTVREF
CCU2
AGND
P1.3 PWM3
OPOUT
64
1
17
P1.2 PWM2
16
Ramtron International Corporation ? http://www.ramtron.com
1850 Ramtron Drive Colorado Springs ? MCU customer service: 1-800-943-4625, 1-514-871-2447, ext. 208
Colorado, USA, 80921 ? 1-800-545-FRAM, 1-719-481-7000