SH3001 SEMTECH [Semtech Corporation], SH3001 Datasheet - Page 13

• Manufacturer Part Number: SH3001
• Description: Real-Time Clock and Clock Management Support IC for Microcontrollers
• Manufacturer: SEMTECH [Semtech Corporation]

Operating characteristics with crystal oscillator
*Note: V
Operating characteristics of the high-frequency oscillator (HFO)
Copyright ©2002-2005 Semtech Corporation
SYSTEM MANAGEMENT
Parameter
Crystal operating frequency
CLK32 duty cycle
Startup time
Minimum X
Maximum X
Padding capacitance resolution
X
X
CLK32 frequency stability (crystal-dependent)
CLK32 cycle to cycle jitter
CLK32 rise/fall time (10 pF load)
CLK32 logic output low (0.5 mA load)
CLK32 logic output high (0.5 mA load)
Parameter
Minimum operating frequency (Start-up default = 2 MHz)
Maximum operating frequency
Frequency resolution
Programmed frequency accuracy at 25°C
Frequency drift over temperature and supply
CLK
Startup time from standby
Settling time to 0.1% after HF digitally-controlled oscillator
(DCO) code change
CLK
Frequency temperature stability
Short term frequency stability
Minimum spread spectrum range
Maximum spread spectrum range
CLK
CLK
CLK
IN
IN
switching threshold
to CLK32 delay
OUT
OUT
OUT
OUT
OUT
cycle to cycle jitter (spread spectrum off)
duty cycle
rise/fall time (20 pF load)
logic output low (4 mA load)
logic output high (4 mA load)
DD here is
IN
IN
/X
/X
OUT
OUT
padding capacitance
V
padding capacitance
DD during normal operation and V
BAK
13
during battery backup.
Symbol
Fop
DC
Tst
Cmin
Cmax
Cres
Vth
Td
Fs
J
Trf
Vol
Voh
Symbol
Fmin
Fmax
Fres
Fst
Fdrift
J
Tstart
Tsett
DC
Fts
Fs
SSmin
SSmax
Trf
Vol
Voh
Min
25
-0.5
Min
16.8
-0.3
40
-0.4
Typ
32.768
10
40
2
0.6
0.5
1
0.05
10
0.25
-0.25
Typ
5.6
21
2
±0.5
0.1
10
100
0.5
32
256
3
0.25
-0.25
SH3001 MicroBuddy™
V1.15
Max
75
3
0.5
Max
8
+0.3
2
60
0.4
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Units
kHz
%
secs
pF
pF
pF
V
µs
ppm/°C
ns
V
Ref V
Units
MHz
MHz
kHz
%
%
%
µs
µs
%
ppm/°C
%/sec
kHz
kHz
ns
V
Ref V
DD
DD
*