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Chapter 4
LH75400 SoC
4.1 LH75400 Features
• ARM7TDMI-S™ Core
• Up to 70 MHz System Clock (HCLK)
– Internal PLL Driven or External Clock Driven
– Crystal Oscillator/Internal PLL Can Operate with Input Frequency Range of
14 MHz to 20 MHz.
• 32KB On-chip SRAM
– 16KB Tightly Coupled Memory (TCM) SRAM
– 16KB Internal SRAM.
• Clock and Power Management
– Low Power Modes: Standby, Sleep, Stop.
• Eight Channel, 10-bit A/D Converter
• Integrated Touch Screen Controller
• Four DMA Channels
• Grayscale LCD Controller
– 4-bit (16 Level) Grayscale, up to XGA (1024 × 768)
– 8-bit Video Bus
– Supports STN Displays.
• CAN Controller that supports CAN version 2.0B
• Serial interfaces
– Two 16C550-type UARTs
– One 82510-type UART.
• Synchronous Serial Port (SSP)
– Motorola SPI™
– National Semiconductor Microwire™
– Texas Instruments SSI.
• Real-Time Clock (RTC)
• Three Counter/Timers
– Capture/Compare/PWM Compatibility
– Watchdog Timer (WDT).
• Low-Voltage Detector
• JTAG Debug Interface and Boundary Scan
• Single 3.3 V Supply
• 5.0 V Tolerant Inputs
• 144-pin LQFP Package
• -40°C to +85°C Operating Temperature.
7/2/03
4-1
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