Nxp Semiconductors LPC2194HBD64,151 ARM7 Microcontroller 16kB LQFP 64 LPC2194HBD64,151 Data Sheet

 

The LPC2194 is based on a 16/32-bit ARM7TDMI-S CPU with real-time emulation and 
embedded trace support, together with 256 kB of embedded high-speed flash memory. A 
128-bit wide memory interface and a unique accelerator architecture enable 32-bit code 
execution at maximum clock rate. For critical code size applications, the alternative 16-bit 
Thumb mode reduces code by more than 30 % with minimal performance penalty.

With its compact 64-pin package, low power consumption, various 32-bit timers, 
4-channel 10-bit ADC, four advanced CAN channels, PWM channels and 46 GPIO lines 
with up to nine external interrupt pins this microcontroller is particularly suitable for 
automotive applications such as a CAN gateway that connects several CAN busses or a 
CAN bridge between sub networks at different speeds. Sensors with CAN interface or 
debugging via CAN are additional applications that need more than two CAN interfaces. It 
is also an adequate solution for industrial control, medical systems and fault-tolerant 
maintenance buses. With a wide range of additional serial communications interfaces, it is 
also suited for communication gateways and protocol converters as well as many other 
general-purpose applications.

Remark:  Throughout the data sheet, the term LPC2194 will apply to devices with and 
without the /00 suffix. New devices will use the /00 suffix to differentiate from the original 
devices only when necessary.

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16/32-bit ARM7TDMI-S microcontroller in a tiny LQFP64 package.

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16 kB on-chip Static RAM and 256 kB on-chip flash program memory. 128-bit wide 
interface/accelerator enables high speed 60 MHz operation.

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In-System Programming (ISP) and In-Application Programming (IAP) via on-chip 
bootloader software. Flash programming takes 1 ms per 512 B line. Single sector or 
full chip erase takes 400 ms.

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EmbeddedICE-RT and Embedded Trace interfaces offer real-time debugging with 
on-chip RealMonitor software as well as high speed real-time tracing of instruction 
execution.

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Four interconnected CAN interfaces with advanced acceptance filters. Additional serial 
interfaces are two UARTs (16C550), Fast I

2

C-bus (400 kbit/s) and two SPIs.

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Four channel 10-bit ADC with conversion time as low as 2.44

µs.

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Two 32-bit timers (with four capture and four compare channels), PWM unit (six 
outputs), Real-Time Clock and Watchdog.