52 standard frequencies between 3.57 MHz and 77.76 MHz
100% pin-to-pin drop-in replacement to quartz-based XO
Excellent total frequency stability as low as ±20 ppm
Operating temperature from -40°C to 85°C. For 125°C and/or
-55°C options, refer to
SiT1618, SiT8918, SiT8920
Low power consumption of 3.5 mA typical at 1.8V
Standby mode for longer battery life
Fast startup time of 5 ms
LVCMOS/HCMOS compatible output
Industry-standard packages: 2.0 x 1.6, 2.5 x 2.0, 3.2 x 2.5,
5.0 x 3.2, 7.0 x 5.0 mm x mm
Instant samples with
Time Machine II
and
Field Programmable
Oscillators
Ideal for DSC, DVC, DVR, IP CAM, Tablets, e-Books,
SSD, GPON, EPON, etc
Ideal for high-speed serial protocols such as: USB,
SATA, SAS, Firewire, 100M / 1G / 10G Ethernet, etc.
RoHS and REACH compliant, Pb-free, Halogen-free and
Antimony-free
For AEC-Q100 oscillators, refer to
SiT8924
and
SiT8925
Electrical Characteristics
All Min and Max limits are specified over temperature and rated operating voltage with 15 pF output load unless otherwise
stated. Typical values are at 25°C and nominal supply voltage.
Table 1. Electrical Characteristics
Parameters
Output Frequency Range
Symbol
f
Min.
Typ.
Max.
Unit
Condition
Refer to
Table 13
for the exact list of supported frequencies
Frequency Range
52 standard frequencies between
MHz
3.57 MHz and 77.76 MHz
-20
-25
-50
-20
-40
1.62
2.25
2.52
2.7
2.97
2.25
–
–
–
–
–
–
–
–
45
–
–
–
90%
Frequency Stability
F_stab
Frequency Stability and Aging
–
+20
ppm
Inclusive of initial tolerance at 25°C, 1st year aging at 25°C,
and variations over operating temperature, rated power
–
+25
ppm
supply voltage and load.
–
+50
ppm
Operating Temperature Range
–
+70
°C
Extended Commercial
–
+85
°C
Industrial
Supply Voltage and Current Consumption
1.8
1.98
V
Contact
SiTime
for 1.5V support
2.5
2.75
V
2.8
3.08
V
3.0
3.3
V
3.3
3.63
V
–
3.63
V
3.8
4.5
mA
No load condition, f = 20 MHz, Vdd = 2.8V to 3.3V
3.7
4.2
mA
No load condition, f = 20 MHz, Vdd = 2.5V
3.5
4.1
mA
No load condition, f = 20 MHz, Vdd = 1.8V
–
4.2
mA
Vdd = 2.5V to 3.3V, OE = GND, Output in high-Z state
–
4.0
mA
Vdd = 1.8 V. OE = GND, Output in high-Z state
2.6
4.3
ST = GND, Vdd = 2.8V to 3.3V, Output is weakly pulled down
̅ ̅̅
A
1.4
2.5
ST = GND, Vdd = 2.5V, Output is weakly pulled down
̅ ̅̅
A
0.6
1.3
ST = GND, Vdd = 1.8V, Output is weakly pulled down
̅ ̅̅
A
LVCMOS Output Characteristics
–
1
1.3
–
–
55
2
2.5
2
–
%
ns
ns
ns
Vdd
All Vdds. See Duty Cycle definition in
Figure 3
and
Footnote 6
Vdd = 2.5V, 2.8V, 3.0V or 3.3V, 20% - 80%
Vdd =1.8V, 20% - 80%
Vdd = 2.25V - 3.63V, 20% - 80%
IOH = -4 mA (Vdd = 3.0V or 3.3V)
IOH = -3 mA (Vdd = 2.8V and Vdd = 2.5V)
IOH = -2 mA (Vdd = 1.8V)
IOL = 4 mA (Vdd = 3.0V or 3.3V)
IOL = 3 mA (Vdd = 2.8V and Vdd = 2.5V)
IOL = 2 mA (Vdd = 1.8V)
Operating Temperature Range
T_use
Supply Voltage
Vdd
Current Consumption
Idd
OE Disable Current
Standby Current
I_OD
I_std
Duty Cycle
Rise/Fall Time
DC
Tr, Tf
Output High Voltage
VOH
Output Low Voltage
VOL
–
–
10%
Vdd
Rev 1.04
January 30, 2018
www.sitime.com
SiT1602B
Low Power, Standard Frequency Oscillator
Table 1. Electrical Characteristics (continued)
Parameters
Symbol
Min.
Typ.
–
–
87
–
–
–
–
1.8
1.8
12
14
0.5
1.3
Max.
–
30%
150
–
Unit
Pin 1, OE or ST
̅ ̅̅
Pin 1, OE or ST
̅ ̅̅
Pin 1, OE logic high or logic low, or ST logic high
̅ ̅̅
Pin 1, ST logic low
̅ ̅̅
Condition
Input Characteristics
Input High Voltage
Input Low Voltage
Input Pull-up Impedance
VIH
VIL
Z_in
70%
–
50
2
Startup Time
Enable/Disable Time
Resume Time
RMS Period Jitter
Peak-to-peak Period Jitter
RMS Phase Jitter (random)
–
–
–
–
–
T_pk
T_phj
–
–
–
–
Vdd
Vdd
k
M
ms
ns
ms
ps
ps
ps
ps
ps
ps
Startup and Resume Timing
T_start
T_oe
T_resume
T_jitt
5
138
5
Jitter
3
3
25
30
0.9
2
f = 75 MHz, Vdd = 2.5V, 2.8V, 3.0V or 3.3V
f = 75 MHz, Vdd = 1.8V
f = 75 MHz, Vdd = 2.5V, 2.8V, 3.0V or 3.3V
f = 75 MHz, Vdd = 1.8V
f = 75 MHz, Integration bandwidth = 900 kHz to 7.5 MHz
f = 75 MHz, Integration bandwidth = 12 kHz to 20 MHz
Measured from the time Vdd reaches its rated minimum value
f = 77.76 MHz. For other frequencies, T_oe = 100 ns + 3 *
cycles
Measured from the time ST pin crosses 50% threshold
̅ ̅̅
Table 2. Pin Description
Pin
Symbol
[1]
Functionality
Output Enable
H : specified frequency output
L: output is high impedance. Only output driver is disabled.
H : specified frequency output
L: output is low (weak pull down). Device goes to sleep mode. Supply
current reduces to I_std.
Any voltage between 0 and Vdd or Open : Specified frequency
output. Pin 1 has no function.
Electrical ground
Oscillator output
Power supply voltage
[2]
[1]
[1]
Top View
OE/ST/NC
VDD
1
OE/ST /NC
̅ ̅̅
Standby
No Connect
2
3
4
GND
OUT
VDD
Power
Output
Power
GND
OUT
Figure 1. Pin Assignments
Notes:
1. In OE or ST mode, a pull-up resistor of 10 kΩ or less is recommended if pin 1 is not externally driven. If pin 1 needs to be left floating, use the NC option.
̅ ̅̅
2. A capacitor of value 0.1 µF or higher between Vdd and GND is required.
Rev 1.04
Page 2 of 17
www.sitime.com
SiT1602B
Low Power, Standard Frequency Oscillator
Table 3. Absolute Maximum Limits
Attempted operation outside the absolute maximum ratings may cause permanent damage to the part. Actual performance
of the IC is only guaranteed within the operational specifications, not at absolute maximum rat ings.
Parameter
Storage Temperature
Vdd
Electrostatic Discharge
Soldering Temperature (follow standard Pb free
soldering guidelines)
Junction Temperature
[3]
Min.
-65
-0.5
–
–
–
Max.
150
4
2000
260
150
Unit
°C
V
V
°C
°C
Note:
3. Exceeding this temperature for extended period of time may damage the device.
Table 4. Thermal Consideration
[4]
Package
7050
5032
3225
2520
2016
Note:
4. Refer to JESD51 for
JA
and
JC
definitions, and reference layout used to determine the
JA
and
JC
values in the above table.
JA, 4 Layer Board
(°C/W)
142
97
109
117
152
JA, 2 Layer Board
(°C/W)
273
199
212
222
252
JC, Bottom
(°C/W)
30
24
27
26
36
Table 5. Maximum Operating Junction Temperature
[5]
Max Operating Temperature (ambient)
70°C
85°C
Maximum Operating Junction Temperature
80°C
95°C
Note:
5. Datasheet specifications are not guaranteed if junction temperature exceeds the maximum operating junction temperature.
Table 6. Environmental Compliance
Parameter
Mechanical Shock
Mechanical Vibration
Temperature Cycle
Solderability
Moisture Sensitivity Level
Condition/Test Method
MIL-STD-883F, Method 2002
MIL-STD-883F, Method 2007
JESD22, Method A104
MIL-STD-883F, Method 2003
MSL1 @ 260°C
Rev 1.04
Page 3 of 17
www.sitime.com
SiT1602B
Low Power, Standard Frequency Oscillator
Test Circuit and Waveform
[6]
Vdd
Vout
Test Point
tr
80% Vdd
tf
4
Power
Supply
0.1 uF
1
3
2
15pF
(including probe
and fixture
capacitance)
50%
20% Vdd
High Pulse
(TH)
Period
Low Pulse
(TL)
Vdd
OE/ST Function
1 kΩ
Figure 2. Test Circuit
Note:
6. Duty Cycle is computed as Duty Cycle = TH/Period.
Figure 3. Waveform
Timing Diagrams
90% Vdd
Vdd
Vdd
50% Vdd
[7]
Pin 4 Voltage
T_start
No Glitch
during start up
ST Voltage
T_resume
CLK Output
HZ
T_start: Time to start from power-off
CLK Output
HZ
T_resume: Time to resume from ST
Figure 4. Startup Timing (OE/ ST̅ Mode)
̅ ̅
Figure 5. Standby Resume Timing ( ST̅ Mode Only)
̅ ̅
Vdd
50% Vdd
OE Voltage
T_oe
Vdd
OE Voltage
50% Vdd
T_oe
CLK Output
HZ
T_oe: Time to re-enable the clock output
CLK Output
HZ
T_oe: Time to put the output in High Z mode
Figure 6. OE Enable Timing (OE Mode Only)
Figure 7. OE Disable Timing (OE Mode Only)
Note:
7. SiT1602 has “no runt” pulses and “no glitch” output during startup or resume.
[table=98%,rgb(239, 245, 249)] [tr][td]If stm32F103 does not configure the response priority, the preemptive priority can be configured to 16 levels. That is to say, there can be 16 levels of interrup...
For LCD TV, the most important thing is the LCD panel. In LCD TV, the LCD panel accounts for about 80% of the cost, and the quality of the panel has a great impact on the display quality of LCD TV. To...
[b][i]I would like to ask about the principle or circuit diagram of JDB-80 (225)-A type motor comprehensive protection? [/i][/b] [i]Please help me, thank you: handshake [/i]...
The book says: On the PDA, use the isqlw30 tool to create a data file ****.sdf. But when I open this tool, I can't create it. After clicking the connect database, it asks me to select the data file. I...
Announcing an ARM free practical project development planARM free practice: MP3 player project development plan (re-using ARM-based STM32 for complete implementation) The technical plan for the practi...
[i=s]This post was last edited by tiankai001 on 2017-1-30 23:07[/i] [align=left][color=#252525]I have been engaged in embedded R&D industry for ten years. I think learning is to constantly absorb know...
New energy pure electric vehicles generally accelerate faster than comparable fuel-powered vehicles, both from a standing start and while accelerating. Many believe this is simply due to the motor'...[Details]
Keysight Technologies is combining its electromagnetic simulator with Synopsys' AI-driven RF design migration flow to create an integrated design flow for migrating from TSMC's N6RF+ process techno...[Details]
Plessey Semiconductors has been acquired by Haylo Labs, which was established in March last year with a $100 million, five-year loan from Chinese technology company Goertek.
Haylo Labs w...[Details]
There are many motors that can use thyristor speed control, and they can be used in almost all industries. Various types of motors, such as fans, pumps, AC motors, DC motors, torque motors, single-...[Details]
New version helps developers build secure and trustworthy embedded systems
Shanghai, China—August 21, 2025—
QNX, a division of BlackBerry Ltd., today announced the release of QNX...[Details]
Puttshack's Trackaball uses the Nordic nRF54L15 system-on-chip (SoC) to monitor sensors and enable Bluetooth low energy connectivity, while the nPM2100 power management integrated circuit (PMIC) ...[Details]
Introduction: In digital circuit calculations, there is no concept of decimal points. You know where the decimal is, but the circuit does not know where the decimal point is. Therefore, you need to...[Details]
On August 20, it was reported that the specifications of Intel's upcoming Panther Lake mobile processor appeared on the Intel GFX CI website, which mainly focuses on Intel's open source Linux drive...[Details]
According to Reuters, citing people familiar with the matter, British semiconductor design company Arm Holdings (NASDAQ:ARM) has hired Rami Sinno, head of Amazon's (NASDAQ:AMZN) artificial intellig...[Details]
The automotive transmission is the foundation of a vehicle's motion. The vehicle's drivetrain transfers engine power to the drive wheels, enabling the vehicle to move. The vehicle's drivetrain cons...[Details]
Today, the voltage of electronic products continues to rise to 400V, 600V and even 1000V, so there are few electronic load models that can handle such high voltages. Many people consider connecting...[Details]
With rapid economic development, the types of pollution sources are increasing, especially in chemical and industrial zones and their surroundings. The patterns of pollution and the types of ecolog...[Details]
Generally not, but there are exceptions. For example, a torque motor controller with three-phase output voltage imbalance can cause current imbalance, similar to a phase loss. However, only two pha...[Details]
As AI accelerates across industries, the demand for data center infrastructure is also growing rapidly.
Keysight Technologies recently announced the release of "Beyond the Bottleneck...[Details]
The solution uses AI to detect card-not-present fraud, a payment scam that causes significant losses to businesses.
Beijing, China, August 18, 2025 –
Telesign, a Proximus Global ...[Details]
stm32/stm8
京公网安备 11010802033920号
EEWORLD
