W536A031 Datasheet, PDF (11/16 Pages) Winbond – VOICE/MELODY/LCD CONTROLLER

W536A031
5.3 AC Characteristics
(V_DD−V_SS = 3.0V, No load, FM = 4 MHz with Ring mode, Fs = 32.768 KHz, with Xtal mode, T_A = 25° C, STN LCD on with dot size
0.5mm*0.5mm; unless otherwise specified)
PARAMETER
SYM. CONDITIONS
MIN. TYP. MAX. UNIT
Crystal type and X32IN
Sub-clock Frequency
FSUB and X32O with 17pF
32768
Hz
external cap.
Main-clock Frequency
FM Ring type/Crystal type 400K
-
4M Hz
Chip Operation Frequency
FOSC
SCR0.0 = 1,
FSYS = FSUB
32768
Hz
SCR0.0 = 0;
FSYS = FMAIN
400K
-
4M
Instruction Cycle Time
TCYC One machine cycle
-
4/FOSC
-
S
Reset Active Width
TRAW FOSC = 32.768 KHz
1
-
-
µS
Interrupt Active Width
TIAW FOSC = 32.768 KHz
1
-
-
µS
Main clock Ring frequency FRXIN RXIN = 680KΩ
1M
Hz
(10)
RXIN = 330K Ω
2M
RXIN = 200KΩ
3M
RXIN = 150KΩ
4M
Sub-Clock RC Oscillator
Sub-Clock Oscillation
Stable Time @ Cold Start
Frequency Deviation of
main-clock FRXIN ≤ 2MHz
FRSUB
FSTOP
∆f
f
RSUB = 680KΩ
RSUB = 680KΩ
f(3V) − f(2.4V)
f(3V)
32
0.8
KHz
1
S
10
%
Frequency Deviation of ^∆f
main-clock FRXIN = 3 MHz
f
f(3V) − f(2.4V)
f(3V)
15
%
Frequency Deviation of ^∆f
main-clock FRXIN = 4 MHz
f
f(3V) − f(2.4V)
f(3V)
20
%
ROSC Frequency
FROSC ROSC = 680KΩ
3
MHz
Frequency Deviation of ^∆f
FROSC = 3MHz
f
f(3V) − f(2.4V)
f(3V)
7.5
%
Frame frequency
FLCD ^{LCDM1 = 0111 b}
(default)
64
Hz
Notes:
(10) The deviation will be +20% while VDD drops from 5.5V to 2.4V based on same resistor
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Publication Release Date: May 20, 2003
Revision A2