W536020K Datasheet, PDF (3/16 Pages) Winbond – VOICE/MELODY/LCD CONTROLLER (ViewTalk TM Series)

W536020K/030K/060K/090K/120K
2. FEATURES
• Operating voltage: 2.4 volt ~ 5.5 volt
• Watch dog disabled/enabled by mask option
• Dual clock operating system
− Main clock with Ring/Crystal (400 KHz to 4 MHz)
− Sub-clock with 32.768 KHz RC/Crystal by mask option
• Memory
− Program ROM (P-ROM): 16K × 20 (ROM Bank0)
− Data RAM (W-RAM): 1K × 4 bit
(RAM Bank 0 is 512 nibbles from 0: 000~0: 1FF and 0: 380~0:3FF are mapped to specia
register.
RAM Bank F is 512 nibbles from F: 200~F: 3FF either data RAM or dedicated to script
kernel)
− LCD RAM (L-RAM): 80× 4 bit (RAM Bank1 from 200~24F)
• 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 @W5360020/30K)
− Ports for output only: 8 pads (RE & RF port; W536090K/120K available only)
− Ports for Input/output: 8 pads (RA and RB port; RB port is available for W536060/090K/
120K only)
• Power-down mode
− Hold mode (except for 32KHz oscillator)
− Stop mode (including 32KHz oscillator and release by RD or RC port)
• Eight types of interrupts
− Five internal interrupts (Divider, Timer 0, Timer 1, Speech, Melody)
− Three external interrupts (Port RC, RD, RA)
• One built-in 14-bit clock frequency divider circuit
• Two built-in 8-bit programmable countdown timers
− Timer 0: one of two clock sources (FOSC/4 or FOSC/1024) can be selected
− Timer 1: built-in auto-reload function includes internal timer, external event counter from
RC.0
• Built-in 18/14-bit watchdog timer for system reset.
• Powerful instruction sets
• 8-level subroutine (including interrupt) nesting
• LCD driver unit capability
− VLCD higher than (V_DD -0.5V)
− Built-in voltage regulator to V2 pad
− 40 seg × 8 com
Publication Release Date: May 21, 2003
-3-
Revision A3