Description
The Z89135/136 is a fully integrated, dual processor controller designed for low-cost digital telephone answering machines.
The I/O control processor is a Z8® MCU with 24 KB of program memory, two 8-bit counter/timers, and up to 47 I/O pins.
Features
- Device Z89135 Z89136
s s s s s s s s s s s s s s s s
1
ROM (KB) 24 24
RAM.
- (Bytes) 256 256
I/O Lines 47 47
Speed (MHz) 20 20
Clock Speed of 20.48 MHz 16-Bit Digital Signal Processor (DSP) 6K Word DSP Program ROM 512 Words On-Chip DSP RAM 8-Bit A/D Converter with up to 128 kHz Sample Rate 10-Bit PWM D/A Converter (4 kHz to 64 kHz) Three Vectored, Prioritized DSP Interrupts Two DSP Timers to Support Different A/D and D/A Sampling Rates Z8 and DSP Operation in Parallel IBM® PC-Based Devel.