CXD2931R

CXD2931R 1 chip GPS LSI Description The CXD2931R is a dedicated LSI for the GPS (Global Positioning System) satellite-based position measurement system. This LSI contains a 32-bit RISC CPU, 2M-bit MASK ROM, RAM, UART, timer, and others. This LSI, used together with the RF LSI (CXA1951AQ), enables the configuration of a 2-chip system capable of measuring its position anywhere on the globe. Features 16-channel GPS receiver capable of simultaneously receiving 16 satellites Supports differential GPS — Comforms to RTCM SC-104 Ver. 2.1 — Supports DARC All-in-view measurement 2-satellite measurement Timer supporting GPS time High performance 32-bit RISC CPU 256K-byte program ROM 36K-byte RAM 3-channel UART — Baud rate generator — Supports 1.2K, 2.4K, 4.8K, 9.6K, 19.2K and 38.4K baud — Supports 1/2/4-byte buffer mode 23-bit general-purpose I/O port capable of defining input/output independently for each bit Structure Silicon gate CMOS IC 144 pin LQFP (Plastic) Absolute Maximum Ratings Supply voltage VDD VSS – 0.5 to 4.6 V Input voltage VI VSS – 0.5 to VDD + 0.5 V Output voltage VO VSS – 0.5 to VDD + 0.5 V Operating temperature Topr –40 to +85 °C Storage temperature Tstg –50 to +150 °C Recommended Operating Conditions Supply voltage VDD 3.0 to 3.6 Operating temperature Topr Input/Output Pin Capacitance Input capacitance CIN Output capacitance COUT I/O capacitance CI/O –40 to +85 V °C 9 (Max.) 11 (Max.) 11 (Max.) pF pF pF Sony reserves the r...