SH3000 SEMTECH [Semtech Corporation], SH3000 Datasheet - Page 16

• Manufacturer Part Number: SH3000
• Description: Low-Power Programmable Multifunction Support IC for Microcontrollers
• Manufacturer: SEMTECH [Semtech Corporation]

Operating characteristics with crystal oscillator
*Note: V
Operating characteristics of 32 kHz RC oscillator
Copyright ©2003-2005 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
External 1 MOhm referenced nominal frequency
Internal 1 MOhm referenced nominal frequency
CLK32 duty cycle
Programmed frequency accuracy at 25°C
Absolute accuracy over temperature and supply
(external 1 MOhm)
Absolute accuracy over temperature and supply
(internal 1 MOhm)
Frequency temperature stability (ext. 1 MOhm)
Frequency temperature stability (int. 1 MOhm)
Power on startup time
CLK32 cycle to cycle jitter
IN
IN
switching threshold
to CLK32 delay
DD here is
IN
IN
/X
/X
OUT
OUT
padding capacitance
V
padding capacitance
DD during normal operation and V
BAK
16
during battery backup.
Symbol
Fop
DC
Cmin
Cmax
Cres
Vth
Td
Fs
J
Trf
Vol
Voh
Symbol
Fext
Fint
DC
Fst
Fde
Fdi
Fse
Fsi
Tst
J
Tst
Min
25
9
36
1.8
-0.5
Min
40
-1
-2
-3
Typ
32.768
10
40
2
0.6
1
0.25
-0.25
Typ
32.768
32.768
100
200
SH3000 MicroBuddy™
V1.15
Max
75
3
11
44
2.2
1
0.1
20
0.5
Max
60
+1
+2
+3
100
0.2
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Units
kHz
%
secs
pF
pF
pF
V
µ s
ppm/°C
ns
V
Ref V
Units
kHz
kHz
%
%
%
%
ppm/°C
ppm/°C
µs
%
DD
*