The P89LPC920/921/922/9221 are single-chip microcontrollers designed for
applications demanding high-integration, low cost solutions over a wide range of
performance requirements. The P89LPC920/921/922/9221 is based on a high
performance processor architecture that executes instructions in two to four clocks,
six times the rate of standard 80C51 devices. Many system-level functions have been
incorporated into the P89LPC920/921/922/9221 in order to reduce component count,
board space, and system cost.
2.1 Principal features
n 2 kB/4 kB/8 kB Flash code memory with 1 kB erasable sectors, 64-byte erasable
page size, and single byte erase.
n 256-byte RAM data memory.
n Two 16-bit counter/timers. Each timer may be configured to toggle a port output
upon timer overflow or to become a PWM output.
n Real-Time clock that can also be used as a system timer.
n Two analog comparators with selectable inputs and reference source.
n Enhanced UART with fractional baud rate generator, break detect, framing error
detection, automatic address detection and versatile interrupt capabilities.
n 400 kHz byte-wide I2C-bus communication port.
n Configurable on-chip oscillator with frequency range and RC oscillator options
(selected by user programmed Flash configuration bits). The RC oscillator (factory
calibrated to ±1 %) option allows operation without external oscillator
components. Oscillator options support frequencies from 20 kHz to the maximum
operating frequency of 18 MHz. The RC oscillator option is selectable and fine
tunable.
n 2.4 V to 3.6 V VDD operating range. I/O pins are 5 V tolerant (may be pulled up or
driven to 5.5 V).
n High drive current (20 mA) on eight I/O pins on the P89LPC9221 (P0.3 to P0.7,
P1.4, P1.6, P1.7).
128-bit wide interface/accelerator enables high-speed 60 MHz operation.u 32 kB to 40 kB of on-chip static RAM and 512 kB of on-chip flash memory.n USB 2.0 Full-speed compliant device controller with 2 kB of endpoint RAM.u An additional 8 kB of on-chip RAM accessible to USB by DMA (LPC2158 only).n 32 segment ´ 4 backplane LCD controller supports from 1 to 4 backplanes.n Single 10-bit DAC provides variable analog output.n Low power Real-Time Clock (RTC) with independent power and 32 kHz clock input.n Multiple serial interfaces including two UARTs (16C550), two Fast I2C-bus (400 kbit/s),SPI and SSP with buffering and variable data length capabilities.n High-accuracy internal RC oscillator option allows operation without external oscillatorcomponents. The RC oscillator option is selectable and fine tunable.n 2.4 V to 3.6 V VDD operating range. I/O pins are 5 V tolerant (may be pulled up ordriven to 5.5 V).n 100-pin LQFP package with 38 microcontroller I/O pins minimum.n Individua...
The LPC2131/32/34/36/38 microcontrollers are based on a 16/32-bit ARM7TDMI-S CPUwith real-time emulation and embedded trace support, that combine the microcontrollerwith 32 kB, 64 kB, 128 kB, 256 kB and 512 kB of embedded high-speed flash memory. A128-bit wide memory interface and a unique accelerator architecture enable 32-bit codeexecution at maximum clock rate. For critical code size applications, the alternative 16-bitThumb mode reduces code by more than 30 % with minimal performance penalty.Due to their tiny size and low power consumption, these microcontrollers are ideal forapplications where miniaturization is a key requirement, such as access control andpoint-of-sale. With a wide range of serial communications interfaces and on-chip SRAMoptions of 8 kB, 16 kB, and 32 kB, they are very well suited for communication gatewaysand protocol converters, soft modems, voice recognition and low-end imaging, providingboth large buffer size and high processing power. Various 32-bit tim...