W91510DN Datasheet, PDF (13/30 Pages) Winbond – TONE/PULSE DIALER WITH RTC AND LCD DISPLAY FUNCTION

Preliminary W91510DN SERIES
RTC DC CHARACTERISTICS
(VRTC = 1.5V, VSS = 0V, FOSC. = 32.768 KHz , TA = 25° C, all outputs unloaded.)
PARAMETER
SYMBOL
CONDITIONS
Supply Voltage
VRTC
-
Supply Current
IRTC
No Load
OSC. Starting Time
TOSC
-
OSC. Output Built-in Cap.
CO
Cl = 12.5 pF
OSC. in Trimmer Cap.
CTRIM
-
Frequency Stability
∆f/f
VDD−VSS = 1.3 to 1.6V
MIN.
1.2
-
-
-
5
-
TYP.
1.5
2.0
-
25
-
-
MAX.
1.8
4.0
3
-
35
1
UNIT
V
µA
S
pF
pF
ppM
Notes :
1. Crystal parameters suggested for proper operation are Rs < 100 ohms, Lm = 96 mH , Cm = 0.02 pF , Cn = 5 pF , Cl = 18 pF,
and Fosc. = 3.579545 MHz ±0.02%
2. Crystal oscillator accuracy directly affects these times.
TIMING WAVEFORMS
HKS
KEY IN
DP
T/P MUTE
H/P MUTE
DTMF
OSC.
< 600 mS
< 300 mS
3
T_KID
4
T_IDP
MB
T_PDP
2
T_IDP ^{M B}
T_IDP
T_MD
T_KD
Low
OSCILLATION
T_KRD
2
T_KID
T_IDP
T_PDP
OSCILLATION
Figure 1(a). Normal Dialing Timing Diagram (Pulse Mode without Lock Function)
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Publication Release Date: May 1997
Revision A2