Pre-Production
VRS51L30xx
High-Performance 8051 MCU + F-RAM
Overview
The VRS51L30xx constitute a family of high performance, 8051-
based microcontrollers coupled with a fully integrated array of
peripherals for addressing a broad range of embedded design
applications.
Based on a powerful 40-MIPS, single-cycle, 8051 microprocessor,
these MCU‟s memory sub-system features 64KB of Flash and
4352 bytes of SRAM and 8192 or 2048 Bytes of nonvolatile FRAM
(ferroelectric random access memory
)
memory.
Support peripherals include a hardware based arithmetic unit capable
of performing complex mathematical operations, a JTAG interface for
Flash programming and non-intrusive in-circuit debugging/emulation,
an internal oscillator, and a watchdog timer.
Communication and control of external devices is facilitated via an
assortment of digital peripherals such as an enhanced, fully
configurable SPI bus, an I²C interface, dual UARTs with dedicated
baud rate generators, three 16-bit timers, 8 PWM controllers each
with a 16-bit timer, and 2 pulse width counter modules.
The VRS51L30xx devices operate from 3.0 to 3.6 volts over the
industrial temperature range and are available in MLF-68 package.
Feature Set
o
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o
o
o
o
o
o
o
o
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8051 High Performance Single Cycle Processor
64KB Flash Program Memory
(In-System/ln-Application Programmable)
4352 Bytes of SRAM (4KB + 256)
(Ext. 4KB can be used for program or data memory)
8192 / 2048 Bytes of on-chip F-RAM memory
JTAG Interface for Flash Programming and Non-Intrusive
Debugging/In-Circuit Emulation
MULT/DIV/ACCU Unit including Barrel Shifter
56 General Purpose I/Os
2 Serial UARTs/2 Baud Rate Generators (20-bit)
Enhanced SPI Interface (fully configurable word size)
Fully Configurable I
2
C Interface (Master/Slave)
16 External Interrupt Pins/Interrupt On Port Pin Change
16-bit General Purpose Timer/Counters
2 Pulse Width Counter Modules
8 PWM Controller Outputs with Individual Timers
PWMs can be used as General Purpose Timers
Internal Oscillator
Dynamic System Clock Frequency Adjustment
Power-On Reset/Brown-Out Detect Power Saving Features
Watchdog Timer
Operating voltage: 3.0V to 3.6V
Operating Temperature -40°C to +85°C
F
IGURE
1: VRS51L30
XX
F
UNCTIONAL
D
IAGRAM
Mult/Accu/Div
w/ 32-Bit Barrel
Shifter
Ports (7),
I/Os (56)
External Data
Bus Controller
On-Chip
Oscillator
68
P1.4-SS-T1OUT*
67
P1.3-CS3-TXD1
66
P1.2-CS2-PC1.1-RXD1-T2OUT*
Crystal
Oscillator
Inputs
Dynamic
Clock
Control
Watch Dog
Timer
WR-P3.6 18
VDD 20
PWM5*-P5.5 23
PWM6*-P5.6 24
PWM7*-P5.7 25
XTAL1-P4.6 26
XTAL2-P4.7 27
T1OUT-P4.0 29
PWM0-A8-P2.0 30
PWM1-A9-P2.1 31
PWM2-A10-P2.2 32
TXD0*-PWM3-A11-P2.3 33
Power-On/
Reset
Timer Capture
Inputs (3)
This is a product in the pre-production phase of development. Device characterization is complete and
Ramtron does not expect to change the specifications. Ramtron will issue a Product Change Notice if any
specification changes are made
.
Rev. 2.3
August 2011
Ramtron International Corporation
1850 Ramtron Drive, Colorado Springs, CO 80921
(800) 545-FRAM, (719) 481-7000
http://www.ramtron.com
RXD0-PWM4-A12-DBCS0-P2.4 34
RD-P3.7 19
VDD 21
PWM4*-P5.4 22
VSS 28
D
E
D S
N N
E G
M SI
t.
M E
en
O D
EOL
m
e
C
c
E W
epla
R E
ct r
T N
ire
O R
od
N O
N
F
o
F
IGURE
2: VRS51L30
XX
QFP-64
AND
MLF-68
8051 Core
Single Cycle
40MHz
Flash
64K Bytes
JTAG
w/On-Chip
Emulation
SPI
SRAM
4352 Bytes
IC
2
SDO-P1.5
SCK-SCL*-PC1.3-P1.6
SDI-SDA*-P1.7
RESET
RXD0-PC0.1-P3.0
T0OUT-P4.5
PWM0*-P5.0
PWM1*-P5.1
PWM2*-P5.2
PWM3*-P5.3
VSS
TXD0-P3.1
INT0-PC0.0-P3.2
INT1-PC1.0-P3.3
T0IN-SCL-EXBR0-PC0.3-P3.4
T1IN-SDA-EXBR1-P3.5
P1.4-SS-T1OUT*
P1.3-CS3-TXD1
P1.2-CS2-PC1.1-RXD1-T2OUT*
P1.1-CS1-T2EX
P1.0-CS0-T2IN
P4.4-T2OUT
VDD
P6.0-A0-T2EX*
P6.1-A1-T2IN*
P6.2-A2
P6.3-A3
P6.4-A4
P0.0-AD0
P0.1-AD1
P0.2-AD2
P0.3-AD3
VRS51L30xx
1
2
3
4
5
6
7
8
9
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
10
11
12
13
14
15
VRS51L30xx
QFP-64
16
33
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
P0.4-AD4
P0.5-AD5
P0.6-AD6
P0.7-AD7
P6.5-A5
P6.6-A6
P6.7-A7
PC1.2-T0EX-RXD1*
T1EX-TXD1*
P4.3-TDI
P4.2-TD0
CM0-ALE
P4.1-TMS
P2.7-DBCS3-PWM7-TCK
P2.6-A14-DBCS2-PWM6-T0EX
P2.5-A13-DBCS1-PWM5-T1EX
FRAM
8192 / 2048
Bytes
UARTs,
Baud Rate
Generators (2)
Interrupt
Controller
65
P1.1-CS1-T2EX
64
P1.0-CS0-T2IN
60
P6.0-A0-T2EX*
63
P4.4-T2OUT
59
P6.1-A1-T2IN*
55
P0.0-AD0
54
P0.1-AD1
53
P0.2-AD2
WR-P3.6
RD-P3.7
VDD
PWM4*-P5.4
PWM5*-P5.5
PWM6*-P5.6
PWM7*-P5.7
XTAL1-P4.6
XTAL2-P4.7
VSS
T1OUT-P4.0
PWM0-A8-P2.0
PWM1-A9-P2.1
PWM2-A10-P2.2
TXD0*-PWM3-A11-P2.3
RXD0*-PWM4-A12-DBCS0-P2.4
57
P6.3-A3
62
VDD
61
VDD
58
P6.2-A2
56
P6.4-A4
PWMs/
Timers (8)
SDO-P1.5 1
SCK-SCL*-PC1.3-P1.6 2
RESET 4
SDI-SDA*-P1.7 3
52
P0.3-AD3
51 VSS
50 P0.4-AD4
49
48
47
P0.6-AD6
P0.7-AD7
P6.5-A5
P6.6-A6
P6.7-A7
P0.5-AD5
RXD0-PC0.1-P3.0 5
T0OUT-P4.5 6
46
45
44
43
42
40
39
38
37
36
35
PWM0*-P5.0 7
PWM1*-P5.1 8
PWM2*-P5.2 9
VRS51L3074-MG
MLF-68 (10x10mm)
Pulse Width
Counters (2)
PC1.2-T0EX-RXD1*
T1EX-TXD1*
P4.2-TDO
CM0-ALE
P4.1-TMS
PWM3*-P5.3 10
VSS 11
VSS 12
41
P4.3-TDI
TXD0-P3.1 13
INT0-PC0.0-P3.2 14
INT1-PC1.0-P3.3 15
P2.7-DBCS3-PWM7-TCK
T0IN-SCL-EXBR0-PC0.3-P3.4 16
T1IN-SDA-EXBR1-P3.5 17
P2.6-A14-DBCS2-PWM6-T0EX
P2.5-A13-DBCS1-PWM5-T1EX
Page 1 of 116
RAMTRON [ RAMTRON INTERNATIONAL CORPORATION ]
