W536090A Description
The W536XXXA, a member of ViewTalk family, is a high-performance 4-bit micro-controller (uC) with built-in speech unit, melody unit and 64seg 16 LCD driver unit which includes internal regulator ,pump circuit and dedicated two pages LCD RAM. The 4-bit uC core contains dual clock source, 4-bit ALU, two 8-bit timers, one 14 bits divider, maximum 24 pads for input or output, 8 interrupt sources and 8-level nesting for...
W536090A Key Features
- Operating voltage: 2.4 volt ~ 5.5 volt
- Watch dog disabled/enabled by mask option
- Dual clock operating system
- Main clock with RC/Crystal (400 KHz to 4 MHz)
- Sub-clock with 32.768 KHz RC/Crystal by mask option
- Memory
- Program ROM (P-ROM): 32K × 20 (ROM Bank0, 1, 2)
- Maximum 24 input/output pads
- Ports for input only: 8 pads (RC, RD port; RD1~3 can share as serial bus for external memory W55XXX interface @W536030A/
- Ports for output only: 8 pads