LPC2141FBD64,151 NXP Semiconductors, LPC2141FBD64,151 Datasheet - Page 20

• Manufacturer Part Number: LPC2141FBD64,151
• Description: IC ARM7 MCU FLASH 32K 64LQFP
• Manufacturer: NXP Semiconductors
• Series: LPC2100r

Specifications of LPC2141FBD64,151

• Program Memory Type: FLASH
• Program Memory Size: 32KB (32K x 8)
• Package / Case: 64-LQFP
• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 60MHz
• Connectivity: I²C, Microwire, SPI, SSI, SSP, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 45
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: LPC21
• Core: ARM7TDMI-S
• Data Bus Width: 16 bit, 32 bit
• Data Ram Size: 8 KB
• Interface Type: SCI/UART/SPI/SSP/I2C/USB
• Maximum Clock Frequency: 60 MHz
• Number Of Programmable I/os: 45
• Number Of Timers: 2
• 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: 6-ch x 10-bit
• Cpu Family: LPC2000
• Device Core: ARM7TDMI-S
• Device Core Size: 16/32Bit
• Frequency (max): 60MHz
• Total Internal Ram Size: 8KB
• # I/os (max): 45
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 64
• Package Type: LQFP
• Package: 64LQFP
• Family Name: LPC2000
• Maximum Speed: 60 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 568-4310 - EVAL BOARD LPC2158 W/LCD568-4297 - BOARD EVAL LPC21XX MCB2100MCB2140UME - BOARD EVAL MCB2140 + ULINK-MEMCB2140U - BOARD EVAL MCB2140 + ULINK2MCB2140 - BOARD EVAL NXP LPC214X ARM FAM622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K568-2097 - BOARD EVAL FOR LPC214X ARM MCU
• Eeprom Size: -
• Lead Free Status / Rohs Status: Compliant
• Other names: 568-1761; 935280015151; LPC2141FBD64-S

NXP Semiconductors
LPC2141_42_44_46_48_4
Product data sheet
6.16.1 Features
6.17.1 Features
6.16 Watchdog timer
6.17 Real-time clock
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.
The RTC is designed to provide a set of counters to measure time when normal or idle
operating mode is selected. The RTC has been designed to use little power, making it
suitable for battery powered systems where the CPU is not running continuously (Idle
mode).
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– Stop timer on match with optional interrupt generation.
– Reset timer on match with optional interrupt generation.
Four external outputs per timer/counter corresponding to match registers, with the
following capabilities:
– Set LOW on match.
– Set HIGH on match.
– Toggle on match.
– Do nothing on match.
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 pre-scaler.
Selectable time period from (T
T
Measures the passage of time to maintain a calendar and clock.
Ultra-low power design to support battery powered systems.
Provides Seconds, Minutes, Hours, Day of Month, Month, Year, Day of Week, and Day
of Year.
Can use either the RTC dedicated 32 kHz oscillator input or clock derived from the
external crystal/oscillator input at XTAL1. Programmable reference clock divider
allows fine adjustment of the RTC.
Dedicated power supply pin can be connected to a battery or the main 3.3 V.
cy(PCLK)
4.
Rev. 04 — 17 November 2008
cy(PCLK)
256
LPC2141/42/44/46/48
Single-chip 16-bit/32-bit microcontrollers
4) to (T
cy(PCLK)
2
32
© NXP B.V. 2008. All rights reserved.
4) in multiples of
20 of 40