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VRS51C1000-40-L Datasheet(PDF) 1 Page - Ramtron International Corporation |
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VRS51C1000-40-L Datasheet(HTML) 1 Page - Ramtron International Corporation |
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1 / 48 page  Ramtron International Corporation ♦ http://www.ramtron.com 1850 Ramtron Drive Colorado Springs ♦ MCU customer service: 1-800-943-4625, 1-514-871-2447 x 208 Colorado, USA, 80921 ♦ 1-800-545-FRAM, 1-719-481-7000 page 1 of 48 VRS51C1000 Datasheet Rev 1.9 Versa 8051 MCU with 64KB of IAP/ISP Flash Overview The VRS51C1000 is based on the standard 8051 microcontroller family architecture and is pin compatible and a drop-in replacement for most 8051 MCUs. The VRS51C1000 is ideal for a range of applications requiring a large amount of program/data memory with non-volatile data storage and/or code/field based firmware upgrade capability coupled with comprehensive peripheral support. It features 64KB of In-System/In-Application Programmable Flash memory, IKB of SRAM, 5 PWM output channels, a UART, three 16-bit timers, a Watchdog timer and power down features. The VRS51C1000 is available with firmware that enables In-System Programming (firmware based boot- loader) of the Flash memory via the UART interface (ISPVx version). General Flash memory programming is supported by device programmers available from Ramtron or other 3rd party suppliers. The device also includes a fifth, 4-bit, I/O port mapped into the “no connect” pins of the standard 8051/52 package, providing a total of 36 I/Os while maintaining compatibility with standard 8051/82 pin outs. The VRS51C1000 is available in PLCC-44, QFP-44 and DIP-40 packages and function over the industrial temperature range. FIGURE 1: VRS51C1000 FUNCTIONAL DIAGRAM PORT 0 8051 PROCESSOR PORT 3 PORT 2 PORT 1 PWM PORT 4 64KB FLASH 2 INTERRUPT INPUTS UART 1024 Bytes of SRAM RESET TIMER 0 TIMER 2 TIMER 1 POWER CONTROL WATCHDOG TIMER ADDRESS/ DATA BUS 8 8 8 8 4 5 Feature Set • 8051/8052 pin compatible • 64KB Flash memory • In-System / In-Application Flash Programming (ISP/IAP) • Program voltage: 5V • 1024 Bytes on chip data SRAM • Four 8-bit I/Os + one 4-bit I/O • 5 PWM outputs on P1.3 to P1.7 • One Full Duplex UART serial port • Three 16-bit Timers/Counters • Watchdog Timer • Bit operation instruction • 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 function • Low EMI (inhibit ALE) • Operating Temperature Range -40ºC to +85ºC FIGURE 2: VRS51C1000 QFP-44 AND PLCC-44 PIN OUT DIAGRAMS 1 44 11 12 22 23 33 34 VRS51C1000 QFP-44 #RD/P3.7 #WR/P3.6 XTAL1 XTAL2 P4.0 VSS P2.1/A9 P2.0/A8 P2.3/A11 P2.2/A10 P2.4/A12 PWM0/P1.3 PWM1/P1.4 T2EX/P1.1 P1.2 P4.2 T2/P1.0 P0.0/AD0 VDD P0.2/AD2 P0.1/AD1 P0.3/AD3 PWM3/P1.6 PWM2/P1.5 RES PWM4/P1.7 P4.3 RXD/P3.0 #INT0/P3.2 TXD/P3.1 T0/P3.4 #INT1/P3.3 T1/P3.5 P2.6/A14 P2.5/A13 #PSEN P2.7/A15 P4.1 ALE P0.7/AD7 #EA P0.5/AD5 P0.6/AD6 P0.4/AD4 1 VRS51C1000 PLCC-44 6 7 17 18 28 29 39 40 |
Similar Part No. - VRS51C1000-40-L |
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Similar Description - VRS51C1000-40-L |
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