LPC1754FBD80,518 NXP Semiconductors, LPC1754FBD80,518 Datasheet - Page 27

• Manufacturer Part Number: LPC1754FBD80,518
• Description: IC MCU 32BIT 128KB FLASH 80LQFP
• Manufacturer: NXP Semiconductors
• Series: LPC17xxr

Specifications of LPC1754FBD80,518

• 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
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• 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
• Package / Case: 80-LQFP
• Package: 80LQFP
• Device Core: ARM Cortex M3
• Family Name: LPC1700
• Maximum Speed: 100 MHz
• Operating Supply Voltage: 3.3 V
• Data Bus Width: 32 Bit
• Number Of Programmable I/os: 52
• Interface Type: CAN/I2C/SPI/UART/USB
• On-chip Adc: 6-chx12-bit
• Number Of Timers: 4
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

NXP Semiconductors
LPC1759_58_56_54_52_51
Product data sheet
7.25.1 Features
7.27.1 Features
7.25 Repetitive Interrupt (RI) timer
7.26 ARM Cortex-M3 system tick timer
7.27 Watchdog timer
The repetitive interrupt timer provides a free-running 32-bit counter which is compared to
a selectable value, generating an interrupt when a match occurs. Any bits of the
timer/compare can be masked such that they do not contribute to the match detection.
The repetitive interrupt timer can be used to create an interrupt that repeats at
predetermined intervals.
The ARM Cortex-M3 includes a system tick timer (SYSTICK) that is intended to generate
a dedicated SYSTICK exception at a 10 ms interval. In the LPC1759/58/56/54/52/51, this
timer can be clocked from the internal AHB clock or from a device pin.
The purpose of the watchdog is to reset the microcontroller within a reasonable amount of
time if it enters an erroneous state. When enabled, the watchdog will generate a system
reset if the user program fails to ‘feed’ (or reload) the watchdog within a predetermined
amount of time.
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32-bit counter running from PCLK. Counter can be free-running or be reset by a
generated interrupt.
32-bit compare value.
32-bit compare mask. An interrupt is generated when the counter value equals the
compare value, after masking. This allows for combinations not possible with a simple
compare.
Internally resets chip if not periodically reloaded.
Debug mode.
Enabled by software but requires a hardware reset or a watchdog reset/interrupt to be
disabled.
Incorrect/Incomplete feed sequence causes reset/interrupt if enabled.
Flag to indicate watchdog reset.
Programmable 32-bit timer with internal prescaler.
Selectable time period from (T
multiples of T
The Watchdog Clock (WDCLK) source can be selected from the Internal RC (IRC)
oscillator, the RTC oscillator, or the APB peripheral clock. This gives a wide range of
potential timing choices of Watchdog operation under different power reduction
conditions. It also provides the ability to run the WDT from an entirely internal source
that is not dependent on an external crystal and its associated components and wiring
for increased reliability.
Includes lock/safe feature.
All information provided in this document is subject to legal disclaimers.
cy(WDCLK)
Rev. 7 — 29 March 2011
 4.
cy(WDCLK)
LPC1759/58/56/54/52/51
 256  4) to (T
32-bit ARM Cortex-M3 microcontroller
cy(WDCLK)
 2
© NXP B.V. 2011. All rights reserved.
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 4) in
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