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P89LPC9401 Datasheet(PDF) 1 Page - NXP Semiconductors |
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P89LPC9401 Datasheet(HTML) 1 Page - NXP Semiconductors |
1 / 59 page 1. General description The P89LPC9401 is a multi-chip module consisting of a P89LPC931 single-chip microcontroller combined with a PCF8576D universal LCD driver in a low-cost 64-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. 2. Features 2.1 Principal features s 8 kB byte-erasable flash code memory organized into 1 kB sectors and 64-byte pages. Single-byte erasing allows any byte(s) to be used as non-volatile data storage. s 256-byte RAM data memory. s 32 segment × 4 backplane LCD controller supports from 1 to 4 backplanes. s Two analog comparators with selectable inputs and reference source. s Two 16-bit counter/timers (each may be configured to toggle a port output upon timer overflow or to become a PWM output) and a 23-bit system timer that can also be used as a Real-Time Clock (RTC). s Enhanced UART with fractional baud rate generator, break detect, framing error detection, and automatic address detection; 400 kHz byte-wide I2C-bus communication port and SPI communication port. s High-accuracy internal RC oscillator option allows operation without external oscillator components. The RC oscillator option is selectable and fine tunable. s 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). s 64-pin LQFP package with 20 microcontroller I/O pins minimum and up to 23 microcontroller I/O pins while using on-chip oscillator and reset options. s Serial flash In-Circuit Programming (ICP) allows simple production coding with commercial EPROM programmers. Flash security bits prevent reading of sensitive application programs. 2.2 Additional features s A high performance 80C51 CPU provides instruction cycle times of 111 ns to 222 ns for all instructions except multiply and divide when executing at 18 MHz. This is six times the performance of the standard 80C51 running at the same clock frequency. A lower clock frequency for the same performance results in power savings and reduced EMI. P89LPC9401 8-bit microcontroller with accelerated two-clock 80C51 core 8 kB 3 V byte-erasable flash with 32 segment × 4 LCD driver Rev. 01 — 5 September 2005 Preliminary data sheet |
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