LPC2194HBD64/01,15 NXP Semiconductors, LPC2194HBD64/01,15 Datasheet - Page 17

• Manufacturer Part Number: LPC2194HBD64/01,15
• Description: IC ARM7 MCU FLASH 256K 64-LQFP
• Manufacturer: NXP Semiconductors
• Series: LPC2100r

Specifications of LPC2194HBD64/01,15

• Program Memory Type: FLASH
• Program Memory Size: 256KB (256K x 8)
• Package / Case: 64-LQFP
• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 60MHz
• Connectivity: CAN, I²C, Microwire, SPI, SSI, SSP, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 46
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 3.6 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Processor Series: LPC21
• Core: ARM7TDMI-S
• Data Bus Width: 16 bit, 32 bit
• Data Ram Size: 16 KB
• Interface Type: CAN/I2C/SPI/UART
• Maximum Clock Frequency: 60 MHz
• Number Of Programmable I/os: 46
• Number Of Timers: 2
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 4-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 568-4310 - EVAL BOARD LPC2158 W/LCD568-4297 - BOARD EVAL LPC21XX MCB2100622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-4316; 935284881151; LPC2194HBD64/01-S; LPC2194HBD64/01-S

NXP Semiconductors
LPC2194_5
Product data sheet
6.14.1 Features
6.14.2 Features available in LPC2194/01 only
6.15.1 Features
6.15 Watchdog timer
The LPC2194/01 can count external events on one of the capture inputs if the external
pulse lasts at least one half of the period of the PCLK. In this configuration, unused
capture lines can be selected as regular timer capture inputs, or used as external
interrupts.
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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A 32-bit Timer/Counter with a programmable 32-bit Prescaler.
Timer or external event counter operation
Four 32-bit capture channels per timer that can take a snapshot of the timer value
when an input signal transitions. A capture event may also optionally generate an
interrupt.
Four 32-bit match registers that 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.
Four external outputs per timer corresponding to match registers, with the following
capabilities:
– Set LOW on match.
– Set HIGH on match.
– Toggle on match.
– Do nothing on match.
Timer can count cycles of either the peripheral clock (PCLK) or an externally supplied
clock.
When counting cycles of an externally supplied clock, only one of the timer’s capture
inputs can be selected as the timer’s clock. The rate of such a clock is limited to
PCLK / 4. Duration of HIGH/LOW levels on the selected CAP input cannot be shorter
than 1 / (2PCLK).
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.
Rev. 05 — 10 December 2007
Single-chip 16/32-bit microcontroller
LPC2194
© NXP B.V. 2007. All rights reserved.
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