Datasheet4U Logo Datasheet4U.com

PC87570 Datasheet Keyboard And Power Management Controller

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: - January 1998 Highlights PRELIMINARY April 1998 PC87570 Keyboard and Power Management.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The PC87570 is a highly integrated embedded RISC-based controller optimized for power management (PM), keyboard and mouse (KBC) and system control in portable Personal Computer (PC) applications.

The PC87570 incorporates National’s CompactRISC™ CR16A core, a high performance 16-bit RISC processor core, a Bus Interface Unit (BIU) that directly interfaces with memory and I/O devices, on-chip memory and system support functions.

Among these are legacy functions, handled by the Host Bus Interface (HBI), that include the Real-Time Clock and Advanced Power Control (RTC and APC), and peripherals, including: frequency-multiplier-based High Frequency Clock Generator (HFCG), Power Mode Control (PMC), Interrupt Control Unit (ICU), Multi-Input Wake-Up (MIWU), General Purpose I/O Ports (GPIO) with internal keyboard matrix scanning, PS/2® Interface, ACCESS.bus® (ACB) Interface, two Multi-Function 16-Bit Timers (MFT16), periodic interrupt timer and WATCHDOG™ (TWD), ADC and DAC.

Key Features

  • q q q q q q Shared BIOS memory Fully ACPI-compliant embedded controller Proprietary PS/2 shift mechanism Extremely low current consumption in Idle mode Support for a variety of off-chip wake-up sources Scalable design for growth without controller upgrade Block Diagram CR16A Core Processing Unit Core Bus Bus Adapter Memory RAM ROM BIU Peripheral Bus Host Config KBC + PM Host I/F RTC + APC GPIO KBSCAN MIWU CLK HFCG ICU ACB I/F PS/2 I/F Timer + WDG MFT16 (X2) ADC DAC Legacy PMC HBI Pe.

More Datasheets from National Semiconductor (now Texas Instruments)

Part Number Description
PC87591E LPC Mobile Embedded Controllers
PC87591L LPC Mobile Embedded Controllers
PC87591S LPC Mobile Embedded Controllers
PC87108 Advanced UART and Infrared Controller
PC87109VBE PC87109VBE Advanced UART and Infrared Controller
PC87120 PC87120 SuperAT
PC87200 PC87200 PCI to ISA Bridge
PC87303VUL Floppy Disk Controller / Keyboard Controller
PC87306 Floppy Disk Controller / Keyboard Controller
PC87307 Plug and Play Compatible

PC87570 Distributor