W536A031 Datasheet, PDF (2/16 Pages) Winbond – VOICE/MELODY/LCD CONTROLLER

W536A031
1. GENERAL DESCRIPTION
The W536A031, a member of ViewTalk^TM family, is a high-performance 4-bit micro-controller (uC) with
built-in speech unit, melody unit and 64seg * 16 com 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, 16 pads for input or output, 8 interrupt sources and 8-level
nesting for subroutine/interrupt applications. Speech unit, integrated as a single chip with maximum
32 seconds (based on 6.4K sample rate with 5 bits MDPCM), is capable of expanding to 512 seconds
speech addressed by external memory W55XXX with serial bus interface. It can be implemented with
Winbond Power Speech using MDPCM algorithm. Melody unit provides dual tone output and can
store up to 1k notes. Power reduction mode is also built in to minimize power dissipation. It is ideal for
games, educational toys, remote controllers, watches, clocks and other application products that
incorporate both LCD display and speech.
Voice
PART NO
I/O pad
WDT disable/Enable
(Mask Option)
Sub-clock RC/XTAL mode
(Mask Option)
RD port shared as serial bus
(Mask Option)
Tri-state serial bus
(Mask Option) (3)
Cascaded Voice ROM through
serial bus (2)
W536A031
30 sec
8I/O, 8I
(RA/RB/RC/RD)
Y
Y
Y (1)
Y
N
Notes:
1. Share 3 pads of RD port (RD1/ADDR, RD2/DATA and RD3/CLK)
2. Dedicate serial bus 3 pads (ADDR, DATA and CLK) to interface with W55XXX. Cascaded Voice ROM can help to expand
voice up to 512 sec by W55XXX chip.
3. Tri-state serial bus mask option can float serial bus while voice playing is no active. Let this mask option is disabled to get
minimum power consumption in general.
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