SH3000EK SEMTECH [Semtech Corporation], SH3000EK Datasheet - Page 14

• Manufacturer Part Number: SH3000EK
• Description: Reset Management and Clock Management Support IC for Microcontrollers
• Manufacturer: SEMTECH [Semtech Corporation]

Operating characteristics of 32.768 kHz RC oscillator
Operating characteristics of programmable reset
Copyright ©2002-2005 Semtech Corporation
SYSTEM MANAGEMENT
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
Parameter
V
(Start-up default = 2.3 V)
V
V
V
Falling V
Threshold digital-analog converter (DAC) settling time
Minimum V
DD
DD
DD
DD
switching threshold for Min code
switching threshold for Max code
threshold resolution
hysteresis
DD
DD
threshold switch delay
for valid nRST
14
Symbol
Fext
Fint
DC
Fst
Fde
Fdi
Fse
Fsi
Tst
J
Symbol
Vbo(min)
Vbo(max)
Vres
Vhys
Td
Tdac
VDDmin
Min
40
-1.5
Min
2.27
4.2
Typ
32.768
32.768
±2
±3
100
200
70
0.1
4.3
Typ
2.3
33
50
2.5
4
SH3002 MicroBuddy™
V1.20
Max
60
+1.5
Max
2.33
4.4
1
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Units
kHz
kHz
%
%
%
%
ppm/°C
ppm/°C
µs
%
Units
V
V
mV
mV
µs
ms
V