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VRS51X570 Dataheets PDF



Part Number VRS51X570
Manufacturers Ramtron
Logo Ramtron
Description (VRS51X570 / VRS51X580) Versa 8051 MCUs
Datasheet VRS51X570 DatasheetVRS51X570 Datasheet (PDF)

www.DataSheet4U.com VRS51x570/580 Datasheet Rev 1.2 Versa 8051 MCUs with 32/64KB Overview The VRS51x570 and the VRS51x580 are low cost 8-bit microcontrollers based on the standard 80C51 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, respectivel.

  VRS51X570   VRS51X570



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www.DataSheet4U.com VRS51x570/580 Datasheet Rev 1.2 Versa 8051 MCUs with 32/64KB Overview The VRS51x570 and the VRS51x580 are low cost 8-bit microcontrollers based on the standard 80C51 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. 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. FIGURE 1: VRS51X570 / VRS51X580 FUNCTIONAL DIAGRAM Feature Set • • • • • • • • • • • • • • • • • • • • 80C51/80C52 pin compatible 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 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 PWM0/P1.3 PWM1/P1.4 P1.2 T2EX/P1.1 P0.0/AD0 P0.2/AD2 PWM2/P1.5 PWM3/P1.6 PWM4/P1.7 RESET RXD/P3.0 P4.3 TXD/P3.1 #INT0/P3.2 #INT1/P3.3 T0/P3.4 T1/P3.5 7 6 1 P0.3/AD3 40 39 P0.1/AD1 T2/P1.0 VDD P4.2 P0.4/AD4 P0.5/AD5 P0.6/AD6 P0.7/AD7 #EA P4.1 ALE #PSEN P2.7/A15 VRS51x570/580 PLCC-44 8051 PROCESSOR ADDRESS/ DATA BUS 17 18 28 29 P2.6/A14 P2.5/A13 #RD/P3.7 P2.0/A8 P2.1/A9 P2.2/A10 XTAL2 XTAL1 P4.0 #WR/P3.6 64KB FLASH 1024 Bytes of RAM PORT 0 8 P0.4/AD4 P0.5/AD5 P0.6/AD6 #PSEN P2.7/A15 UART PORT 2 8 P0.3/AD3 34 33 23 22 P2.6/A14 P2.5/A13 PORT 1 8 P0.7/AD7 P4.1 #EA ALE P2.4/A12 P2.3/A11 VSS P2.4/A12 P2.3/A11 P2.2/A10 2 INTERRUPT INPUTS TIMER 0 TIMER 1 TIMER 2 RESET POWER CONTROL WATCHDOG TIMER PORT 3 8 P0.2/AD2 P0.1/AD1 P0.0/AD0 VDD P4.2 T2/P1.0 T2EX/P1.1 P1.2 PWM0/P1.3 PWM1/P1.4 44 12 11 VRS51x570/580 QFP-44 P2.1/A9 P2.0/A8 P4.0 VSS XTAL1 XTAL2 #RD/P3.7 #WR/P3.6 PORT 4 4 1 PWM 5 PWM2/P1.5 PWM3/P1.6 PWM4/P1.7 RESET RXD/P3.0 P4.3 TXD/P3.1 #INT0/P3.2 #INT1/P3.3 T0/P3.4 T1/P3.5 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 page 1 of 49 VRS51x570/580 Pin Descriptions for QFP-44 T ABLE 1: PIN DESCRIPTIONS FOR QFP-44/ QFP - 44 QFP - 44 Function Name I/O Function Name I/O 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 P0.4/AD4 P0.5/AD5 P0.6/AD6 P0.7/AD7 #PSEN P2.7/A15 P2.6/A14 P0.3/AD3 P0.2/AD2 P0.1/AD1 P0.0/AD0 VDD P4.2 T2/P1.0 T2EX/P1.1 P1.2 PWM0/P1.3 PWM1/P1.4 34 33 23 22 P2.5/A13 PWM2 P1.5 PWM3 P1.6 PWM4 P1.7 RES RXD P3.0 P4.3 TXD P3.1 #INT0 P3.2 #INT1 P3.3 T0 P3.4 T1 P3.5 #WR P3.6 #RD P3.7 XTAL2 XTAL1 VSS P4.0 P2.0 A8 P2.1 A9 P2.2 A10 P2.3 A11 P2.4 A12 P2.5 A13 O I/O O I/O O I/O I I I/O I/O O I/O I I/O I I/O I I/O I I/O O I/O O I/O O I I/O I/O O I/O O I/O O I/O O I/O O I/O O PWM Channel 2 Bit 5 of Port 1 PWM Channel 3 Bit 6 of Port 1 PWM Channel 4 Bit 7 of Port 1 Reset Receive Data Bit 0 of Port 3 Bit 3 of Port 4 Transmit Data & Bit 1 of Port 3 External Interrupt 0 Bit 2 of Port 3 External Interrupt 1 Bit 3 of Port 3 Timer 0 Bit 4 of Port 3 Timer 1 & 3 Bit 5 of Port Ext. Memory Write Bit 6 of Port 3 Ext. Memory Read Bit 7 of Port 3 Oscillator/Crystal Output Oscillator/Crystal In Ground Bit 0 of Port 4 Bit 0 of Port 2 Bit 8 of External Memory Address Bit 1 of Port 2 Bit 9 of External Memory Address Bit 2 of Port 2 Bit 10 of External Memory Address Bit 3 of Port 2 & Bit 11 of External Memory Address Bit 4 of Port 2 Bit 12 of External Memory Address Bit 5 of Port 2 Bit 13 of External Memory Address P2.6 A14 P2.7 A15 #PSEN ALE P4.1 #EA P0.7 AD7 P0.6 AD6 P0.5 AD5 P0.4 AD4 P0.3 AD3 P0.2 AD2 P0. 1 AD1 P0.0 AD0 VDD P4.2 T2 P1.0 T2EX P1.1 P1.2 PWM0 P1.3 PWM1 P1.4 I/O O I/O O O O I/O I I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I I/O I I/O I/O O I/O O I/O Bit 6 of Port 2 Bit 14 of External Memory Address Bit 7 of Port 2 Bit 15 of Ex.


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