Single-chip 16/32-bit microcontrollers; 128/256 kB ISP/IAP
ﬂash with 10-bit ADC
Rev. 06 — 10 December 2007
Product data sheet
1. General description
The LPC2114/2124 are based on a 16/32-bit ARM7TDMI-S CPU with real-time emulation
and embedded trace support, together with 128/256 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
With their compact 64-pin package, low power consumption, various 32-bit timers,
4-channel 10-bit ADC, PWM channels and 46 fast GPIO lines with up to nine external
interrupt pins these microcontrollers are particularly suitable for industrial control, medical
systems, access control and point-of-sale. With a wide range of serial communications
interfaces, they are also very well suited for communication gateways, protocol converters
and embedded soft modems as well as many other general-purpose applications.
Remark: Throughout the data sheet, the term LPC2114/2124 will apply to devices with
and without the /00 or /01 sufﬁxes. The /00 or the /01 sufﬁx will be used to differentiate
from other devices only when necessary.
2.1 Key features brought by LPC2114/2124/01 devices
I Fast GPIO ports enable port pin toggling up to 3.5 times faster than the original device.
They also allow for a port pin to be read at any time regardless of its function.
I Dedicated result registers for ADC(s) reduce interrupt overhead. The ADC pads are
5 V tolerant when conﬁgured for digital I/O function(s).
I UART0/1 include fractional baud rate generator, auto-bauding capabilities and
handshake ﬂow-control fully implemented in hardware.
I Buffered SSP serial controller supporting SPI, 4-wire SSI, and Microwire formats.
I SPI programmable data length and master mode enhancement.
I Diversiﬁed Code Read Protection (CRP) enables different security levels to be
implemented. This feature is available in LPC2114/2124/00 devices as well.
I General purpose timers can operate as external event counters.
2.2 Key features common for all devices
I 16/32-bit ARM7TDMI-S microcontroller in a tiny LQFP64 package.
I 16 kB on-chip static RAM.