LPC2157 Datasheet, PDF (1/45 Pages) NXP Semiconductors – Single-chip 16-bit/32-bit microcontrollers; 512 kB flash, with 32 segment x 4 LCD driver

LPC2157/2158
Single-chip 16-bit/32-bit microcontrollers; 512 kB flash, with
32 segment x 4 LCD driver
Rev. 01 — 15 October 2008
Product data sheet
1. General description
The LPC2157/2158 is a multi-chip module consisting of a LPC2138/2148 single-chip
microcontroller combined with a PCF8576D Universal LCD driver in a low-cost 100-pin
package. The LCD driver provides 32 segments and supports from 1 to 4 backplanes.
Display overhead is minimized by an on-chip display RAM with auto-increment
addressing. Refer to the respective LPC2148 and LPC2138 user manual for details.
2. Features
I 128-bit wide interface/accelerator enables high-speed 60 MHz operation.
N 32 kB to 40 kB of on-chip static RAM and 512 kB of on-chip flash memory.
I USB 2.0 Full-speed compliant device controller with 2 kB of endpoint RAM.
N An additional 8 kB of on-chip RAM accessible to USB by DMA (LPC2158 only).
I 32 segment × 4 backplane LCD controller supports from 1 to 4 backplanes.
I Single 10-bit DAC provides variable analog output.
I Low power Real-Time Clock (RTC) with independent power and 32 kHz clock input.
I Multiple serial interfaces including two UARTs (16C550), two Fast I²C-bus (400 kbit/s),
SPI and SSP with buffering and variable data length capabilities.
I High-accuracy internal RC oscillator option allows operation without external oscillator
components. The RC oscillator option is selectable and fine tunable.
I 2.4 V to 3.6 V V_DD operating range. I/O pins are 5 V tolerant (may be pulled up or
driven to 5.5 V).
I 100-pin LQFP package with 38 microcontroller I/O pins minimum.
I Individual enable/disable of peripheral functions as well as peripheral clock scaling for
additional power optimization.
3. Ordering information
Table 1. Ordering information
Type number
Package
Name
Description
LPC2157FBD100 LQFP100 plastic low profile quad flat package; 100 leads; body 14 × 14 × 1.4 mm
LPC2158FBD100 LQFP100 plastic low profile quad flat package; 100 leads; body 14 × 14 × 1.4 mm
Version
SOT407-1
SOT407-1