Z8C520 Datasheet PDF

Zilog. Z8C520

The microcontroller clock frequency is derived from the system clock by a programmable divider under firmware control. The device is capable of functioning in four distinct, selectable communications modes: PS/2, RS232, GPIO (General-purpose I/O), and USB.

Part No.	Z8C520
Datasheet	Z8C520 Download
Manufacturer	Zilog.
Description	1.5 MBPS USB Device Controller
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Part Number Z8E520 (OTP) Z8C520 (ROM) s s s 1 ROM (KB) 6 6 RAM (Bytes) 176 176 Speed (MHz) 12 12 s Software Programmable Timers Configurable as: – Two 8-Bit Standard Timers and One 16-Bit Standard Timer or – One 16-Bit Standard Timer and One 16-Bit Pulse Width Modulator (PWM) Timer Identical Masked ROM Version (Z8C520) On-Chip Oscillator that accepts a Ceramic Resonator or External Clock Hardware Support for PS/2, Serial, USB, and GeneralPurpose I/O (GPIO) Power Reduction Modes: – STOP Mode (functionality shut down except SMR) – HALT Mode (XTAL still running-peripherals active) USB SIE Compliant with USB Spec 1.0 4.0 VDC to 6.0 VDC Operating Range @ 0°C to +70°C Six Vectored Interrupts with Fixed Priority Processor Speed Dividable by Firmware Control Operating Current: 5 mA typical in USB Mode; 2.5 mA typical in Serial Mode (@ 3 MHz); 5 mA typical in PS/2 Mode 16 Total Input/Output Pins (Open-Drain/Push-Pull) Configurable 6 inputs with 3 level Programmable Reference Comparator...