LPC1754FBD80,551 NXP Semiconductors, LPC1754FBD80,551 Datasheet - Page 25

IC ARM CORTEX MCU 128K 80-LQFP

LPC1754FBD80,551

Manufacturer Part Number
LPC1754FBD80,551
Description
IC ARM CORTEX MCU 128K 80-LQFP
Manufacturer
NXP Semiconductors
Series
LPC17xxr
Datasheets

Specifications of LPC1754FBD80,551

Program Memory Type
FLASH
Program Memory Size
128KB (128K x 8)
Package / Case
80-LQFP
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
100MHz
Connectivity
CAN, I²C, IrDA, Microwire, SPI, SSI, SSP, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, DMA, Motor Control PWM, POR, PWM, WDT
Number Of I /o
52
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
2.4 V ~ 3.6 V
Data Converters
A/D 6x12b, D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
LPC17
Core
ARM Cortex M3
Data Bus Width
32 bit
Data Ram Size
32 KB
Interface Type
CAN, I2C, SPI, UART
Maximum Clock Frequency
100 MHz
Number Of Programmable I/os
52
Number Of Timers
3
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit, 6 Channel
On-chip Dac
10 bit
Cpu Family
LPC17xx
Device Core
ARM Cortex-M3
Device Core Size
32b
Frequency (max)
100MHz
Total Internal Ram Size
32KB
# I/os (max)
52
Number Of Timers - General Purpose
4
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
2.4/2.7V
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
80
Package Type
LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
568-4790
935287913551

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LPC1754FBD80,551
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NXP Semiconductors
LPC1759_58_56_54_52_51
Product data sheet
7.22.1 Features
7.22 Pulse width modulator
The PWM is based on the standard Timer block and inherits all of its features, although
only the PWM function is pinned out on the LPC1759/58/56/54/52/51. The Timer is
designed to count cycles of the system derived clock and optionally switch pins, generate
interrupts or perform other actions when specified timer values occur, based on seven
match registers. The PWM function is in addition to these features, and is based on match
register events.
The ability to separately control rising and falling edge locations allows the PWM to be
used for more applications. For instance, multi-phase motor control typically requires
three non-overlapping PWM outputs with individual control of all three pulse widths and
positions.
Two match registers can be used to provide a single edge controlled PWM output. One
match register (PWMMR0) controls the PWM cycle rate, by resetting the count upon
match. The other match register controls the PWM edge position. Additional single edge
controlled PWM outputs require only one match register each, since the repetition rate is
the same for all PWM outputs. Multiple single edge controlled PWM outputs will all have a
rising edge at the beginning of each PWM cycle, when an PWMMR0 match occurs.
Three match registers can be used to provide a PWM output with both edges controlled.
Again, the PWMMR0 match register controls the PWM cycle rate. The other match
registers control the two PWM edge positions. Additional double edge controlled PWM
outputs require only two match registers each, since the repetition rate is the same for all
PWM outputs.
With double edge controlled PWM outputs, specific match registers control the rising and
falling edge of the output. This allows both positive going PWM pulses (when the rising
edge occurs prior to the falling edge), and negative going PWM pulses (when the falling
edge occurs prior to the rising edge).
Up to two match registers can be used to generate timed DMA requests.
LPC1759/58/56/54/52/51 has one PWM block with Counter or Timer operation (may
use the peripheral clock or one of the capture inputs as the clock source).
Seven match registers allow up to 6 single edge controlled or 3 double edge
controlled PWM outputs, or a mix of both types. The match registers also allow:
– Continuous operation with optional interrupt generation on match.
– Stop timer on match with optional interrupt generation.
– Reset timer on match with optional interrupt generation.
Supports single edge controlled and/or double edge controlled PWM outputs. Single
edge controlled PWM outputs all go high at the beginning of each cycle unless the
output is a constant low. Double edge controlled PWM outputs can have either edge
occur at any position within a cycle. This allows for both positive going and negative
going pulses.
Pulse period and width can be any number of timer counts. This allows complete
flexibility in the trade-off between resolution and repetition rate. All PWM outputs will
occur at the same repetition rate.
All information provided in this document is subject to legal disclaimers.
Rev. 6.01 — 11 March 2011
LPC1759/58/56/54/52/51
32-bit ARM Cortex-M3 microcontroller
© NXP B.V. 2011. All rights reserved.
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