# MEMS Oscillator, 32.768 kHz, SMD, 1.54mm x 0.84mm, 5 ppm, ASTMTXK Series, LVCMOS
**URL**: https://novapart.co/products/ASTMTXK-32.768KHZ-LG-T/mems-oscillator-32768-khz-smd-154mm-x-084mm-5-ppm
**SKU**: ASTMTXK-32.768KHZ-LG-T
**Manufacturer**: ABRACON
**Category**: Crystals & Oscillators || Oscillators || MEMS Oscillators
**Price**: β¬1.1900
**Stock**: 10+
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (15-Jan-2018) |
| Frequency Nom | 32.768kHz |
| Product Range | ASTMTXK Series |
| Supply Voltage Nom | - |
| Frequency Stability + / - | 5ppm |
| Operating Temperature Max | 84Β°C |
| Operating Temperature Min | -40Β°C |
| Oscillator Case / Package | SMD, 1.54mm x 0.84mm |
| Oscillator Output Compatibility | LVCMOS |
## Datasheet
π [Download PDF](https://novapart.co/datasheet/farnell:3820137/)
## **Ultra-miniature, Low Power, 32.768kHz MEMS Oscillator** ASTMTXK **Pb ESD Sensitive** β Β©
Ny 1.54 x 0.84 x 0.60mm
**RoHS/RoHS II compliant**
## **Moisture Sensitivity Level (MSL) β 1 FEATURES:** oonX
- Smallest 32.768kHz TCXO in the market: 1.54 x 0.84 x 0.6mm
- Fitness/Medical monitoring sensors
- Supply Voltage: 1.5V to 3.63V
- Smart Meters
- Ultra-Low Current Consumption: 1.52Β΅A max.(core current, no load)
- Portable devices
- Frequency Stabilities include: Β±5ppm, Β±10ppm, Β±20ppm over 0 to +70Β°C and -40 to +85Β°C
- RTC reference clock
- Internal power supply filtering eliminates external bypass capacitor for Vdd port.
- High Performance MEMS Technology by SiTime
## SS **STANDARD SPECIFICATIONS:**
|**Parameters**
~~βββββββ~~|**Parameters**
~~βββββββ~~|**Min**
~~βββββ~~|**Typ**
~~βββββ~~|**Max**
~~βββββ~~|**Unit**
~~βββββ~~|**Notes**
~~βββββ~~|
|---|---|---|---|---|---|---|
|Output Frequency (Fout
)
~~βββββββ~~||8
6
7.2
3
~~βββββ~~|||z
H
k
~~βββββ~~|~~βββββ~~|
|Frequency Stability over Temperature
(Fstab)(1)(without Initial Offset(2))
~~βββββββ~~
~~ββ~~||-5
~~βββββ~~
~~βββ_ββββ~~|~~βββββ~~
~~βββ_ββββ~~|+5
~~βββββ~~
~~βββ_ββββ~~|ppm
~~βββββ~~
~~βββ_ββββ~~
~~ββββ~~|StabilityOption βGβ
~~βββββ~~
~~βββ_ββββ~~|
|||-10
~~βββββ~~
~~βββ_ββββ~~|~~βββββ~~
~~βββ_ββββ~~|+10
~~βββββ~~
~~βββ_ββββ~~||StabilityOption βYβ
~~βββββ~~
~~βββ_ββββ~~|
|||-20
~~βββββ~~
~~βββ_ββββ~~
~~ee~~|~~βββββ~~
~~βββ_ββββ~~
~~ee~~|+20
~~βββββ~~
~~βββ_ββββ~~
~~ee~~||StabilityOption βJβ
~~βββββ~~
~~βββ_ββββ~~
~~oO~~
~~ββββ~~|
|Frequency Stability over Temperature
(Fstab) (with Initial Offset(2))
~~βββββββ~~
~~ββ~~
~~=~~||-10
~~βββββ~~
~~βββ_ββββ~~
~~ee~~|~~βββββ~~
~~βββ_ββββ~~
~~ee~~|+10
~~βββββ~~
~~βββ_ββββ~~
~~ee~~|ppm
~~βββββ~~
~~βββ_ββββ~~
~~ββββ~~|StabilityOption βGβ
~~βββββ~~
~~βββ_ββββ~~
~~ββββ~~|
|||-13
~~βββ_ββββ~~
~~ee~~|~~βββ_ββββ~~
~~ee~~|+13
~~βββ_ββββ~~
~~ee~~||StabilityOption βYβ
~~βββ_ββββ~~
~~ββββ~~|
|||-22
~~βββ_ββββ~~
~~ee~~
~~=~~|~~βββ_ββββ~~
~~ee~~
~~=~~|+22
~~βββ_ββββ~~
~~ee~~
~~=~~||StabilityOption βJβ
~~βββ_ββββ~~
~~ββββ~~|
|Frequency Stability vs Voltage (Fvdd)
~~ββ~~
~~=~~||-0.75
~~βββ_ββββ~~
~~ee~~
~~=~~|~~βββ_ββββ~~
~~ee~~
~~=~~|+0.75
~~βββ_ββββ~~
~~ee~~
~~=~~|ppm
~~βββ_ββββ~~
~~ββββ~~
|1.8VΒ±10%
~~βββ_ββββ~~
~~ββββ~~|
|||-1.5
~~βββ_ββββ~~
~~=~~|~~βββ_ββββ~~
~~=~~
~~β es~~|+1.5
~~βββ_ββββ~~
~~=~~
~~es~~||1.5-3.63V
~~βββ_ββββ~~
~~po~~|
|Aging (@+25Β°C)
~~ββ~~
~~=~~||-1
~~βββ_ββββ~~
~~=~~
~~βa~~|~~βββ_ββββ~~
~~=~~
~~a~~
~~β es~~|+1
~~βββ_ββββ~~
~~=~~
~~es~~|ppm
~~βββ_ββββ~~
|Firstyear. Vdd= 3.3V
~~βββ_ββββ~~
~~po~~|
|SupplyVoltage(Vdd)
~~a~~||1.5
~~a~~
~~eee~~|~~a~~
~~β es~~
~~eee~~|3.63
~~es ~~
~~eee~~|V
~~β~~|TA= -40Β°C to +85Β°C
~~po~~
~~β~~|
|Core Supply Current ( Idd)(3)
~~a~~
~~Ss~~
~~es~~||~~eee~~
~~Ss~~|0.99
~~eee~~
~~Ss~~|~~eee~~
~~Ss~~|Β΅A
~~β~~
~~Sspo~~
~~po~~|TA= +25Β°C, Vdd: 1.8V. LVCMOS
output. No load.
~~β~~
~~po~~|
|||~~eee~~
~~Ss~~
~~ββ~~
|~~eee~~
~~Ss~~
~~ββ~~|1.52
~~eee~~
~~Ss~~
~~ββ~~||TA= -40Β°C to +85Β°C,
Vddmax: 1.5V - 3.63V. No load.
~~β~~
~~po~~
~~po~~|
|Power SupplyRamp (tVdd_Ramp)
~~Ss~~
~~es~~||~~Ss~~
~~ββ~~
~~oe~~|~~Ss~~
~~ββ~~|100
~~Ss~~
~~ββ~~|ms
~~Sspo~~
~~po~~
~~Oo~~|TA= -40Β°C to +60Β°C, 0 to 90%*Vdd
~~po~~
~~po~~
~~Oo~~|
|Start-up Time at Power-up (Tstart)
~~Ss~~
~~es~~||~~Ss~~
~~ββ~~
~~oe~~|180
~~Ss~~
~~ββ~~|300
~~Ss~~
~~ββ~~|ms
~~Sspo~~
~~po~~
~~Oo~~|TA= -40Β°C to +60Β°C,valid output
~~po~~
~~po~~
~~Oo~~|
|||~~Ss~~
~~ββ~~
~~oe~~|~~Ss~~
~~ββ~~|350
~~Ss~~
~~ββ~~||TA= +60Β°C to +70Β°C,valid output
~~po~~
~~po~~
~~Oo~~|
|||~~Ss~~
~~ββ~~
~~oe~~
~~pp~~|~~Ss~~
~~ββ~~
~~pp~~|380
~~Ss~~
~~ββ~~||TA= +70Β°C to +85Β°C,valid output
~~po~~
~~po~~
~~Oo~~|
|Operating Temperature Range (Tuse)
~~es~~
~~OT~~||0
~~ββ~~
~~oe~~
~~pp~~|~~ββ~~
~~pp~~
~~a~~|+70
~~ββ~~
~~a~~|Β°C
~~po~~
~~Oo~~|Option βNβ
~~po~~
~~Oo~~|
|||-40
~~ββ~~
~~oe~~
~~OT~~|~~ββ~~|+85
~~ββ~~||Option βLβ
~~po~~
~~Oo~~|
|rettiJ
m
re
T
g
n
o
L
~~es ~~
~~OT~~||~~ββ~~
~~oe~~
~~OT~~|~~ββ~~|5.2
~~ββ ~~
~~pop~~|s
Β΅
pp
~~po~~
~~Oo~~
~~pop~~|81920 cycles(2.5sec), 100 samples
~~po~~
~~Oo~~
~~pop~~|
|rettiJ d
oire
P
~~OT~~||~~OT~~|5
3|~~pop~~|s
n
RMS
~~pop~~|Cycles=10000, TA= +25Β°C,
Vdd:1.5-3.63V
~~pop~~|
|**LVCMOS Output Option**(TA= -40Β°C to +85Β°C. Typical values are at TA= +25Β°C)
~~pop~~
~~pT~~|||||||
|Output Rise/Fall Time (tr/tf)
~~a~~||~~oo~~
~~ee~~|100
~~oo~~|200|ns|10-90%(Vdd),15pF load|
|||~~oo~~
~~ee~~|~~oo~~|50||10-90%(Vdd),5pF load,Vddβ₯1.62V|
|Output Clock DutyCycle
~~a~~
~~ββ_~~||48
~~oo~~
~~ee~~
~~a~~|~~oo~~
~~Ee~~
~~a~~|52
~~Ee~~
~~a~~|%
~~Ee~~
~~βββββββ~~|~~Ee~~
~~βββββββ~~|
|Output Voltage
~~β~~|VOH
~~ββ_~~|90%*Vdd
~~a~~|~~Ee~~
~~a~~|~~Ee~~
~~a~~|V
~~Ee~~
~~βββββββ~~|Vdd:1.5-3.63V. IOH= -1Β΅A,15pF
~~Ee~~
~~βββββββ~~|
||VOL
~~ββ_~~|~~a~~|~~Ee~~
~~a~~|10%*Vdd
~~Ee~~
~~a~~||Vdd:1.5-3.63V. IOL= 1Β΅A,15pF
~~Ee~~
~~βββββββ~~|
2. Initial offset is defined as the frequency deviation from the ideal 32.768kHz at room temperature, past reflow.
3. Core operating current does not include output driver operating current or load current. To derive total operating current (no load), add core operating current + output driver operating current, where output driver operating current = Cdriver*Vout*Fout.
2 Faraday, Suite# B **|** Irvine **|** CA 92618 **Revised: 06.30.15** Ph. 949.546.8000 **|** Fax. 949.546.8001 Visit www.abracon.com for Terms and Conditions of Sale
**ABRACON IS** ISO9001:2008 **CERTIFIED**
**LLC**
## **Ultra-miniature, Low Power, 32.768kHz MEMS Oscillator**
## ASTMTXK
**Pb RoHS/RoHS II compliant**
**==> picture [72 x 7] intentionally omitted <==**
**----- Start of picture text -----**
1.54 x 0.84 x 0.60mm
**----- End of picture text -----**
## **Absolute Maximum Ratings**
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 ratings.
|**Parameters**|**Test Condition**|**Value**|**Unit**|
|---|---|---|---|
|ContinuousPowerSupply VoltageRange (Vdd
)||3
6.3 ot 5.0
-|V|
|Short Duration Max. Power SupplyVoltage(Vdd)|β€30 minutes|4.0|V|
|Continuous Maximum OperatingTemperature Range|Vdd:1.5-3.63V|105|Β°C|
|Short Duration Max. OperatingTemperature Range|Vdd:1.5-3.63V, β€30 minutes|125|Β°C|
|Human BodyModel(HBM)ESD Protection|JESD22-A114|3000|V|
|Charge-Device Model (CDM) ESD Protection|JESD22-C101|750|V|
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## **Block Diagram**
yy **PART IDENTIFICATION:**
ASTMTXK - 32.768 kHz - - **Operating Temp. Freq. Stability Packaging** N: 0Β°C ~ +70Β°C G: Β±5ppm Blank: Bulk L: -40Β°C ~ +85Β°C Y: Β±10 ppm T: Tape & Reel J: Β±20 ppm (1kpcs / reel) T3: Tape & Reel (3kpcs / reel) T10: Tape & Reel (10kpcs / reel)
2 Faraday, Suite# B **|** Irvine **|** CA 92618 **Revised: 06.30.15** Ph. 949.546.8000 **|** Fax. 949.546.8001 Visit www.abracon.com for Terms and Conditions of Sale
**ABRACON IS** ISO9001:2008 **CERTIFIED** |
**LLC**
ASTMTXK
## **Ultra-miniature, Low Power, 32.768kHz MEMS Oscillator**
**==> picture [15 x 9] intentionally omitted <==**
**----- Start of picture text -----**
Pb
**----- End of picture text -----**
**==> picture [229 x 14] intentionally omitted <==**
**----- Start of picture text -----**
RoHS/RoHS II compliant
1.54 x 0.84 x 0.60mm
**----- End of picture text -----**
## kg **Typical Performance Data (TA=25Β°C, Vdd=1.8V, unless otherwise stated)** ==βeβesS
**==> picture [483 x 19] intentionally omitted <==**
**----- Start of picture text -----**
Frequency Stability vs. Operating Temperature Range Frequency Stability vs. Operating Temperature Range
(Pre-Reflow ) (Post-Reflow)
**----- End of picture text -----**
**==> picture [510 x 22] intentionally omitted <==**
**----- Start of picture text -----**
Total Supply Current vs Operating Temperature Range
Core Current vs Operating Temperature Range (Core+LVCMOS Output Driver, No Load)
**----- End of picture text -----**
**==> picture [186 x 11] intentionally omitted <==**
**----- Start of picture text -----**
Start-up and Steady-State Current Profile
**----- End of picture text -----**
2 Faraday, Suite# B **|** Irvine **|** CA 92618 **Revised: 06.30.15** Ph. 949.546.8000 **|** Fax. 949.546.8001 Visit www.abracon.com for Terms and Conditions of Sale
**ABRACON IS** ISO9001:2008 **CERTIFIED** |
**LLC**
ASTMTXK
1.54 x 0.84 x 0.60mm
## **Ultra-miniature, Low Power, 32.768kHz MEMS Oscillator**
**Pb RoHS/RoHS II compliant**
**==> picture [386 x 462] intentionally omitted <==**
**----- Start of picture text -----**
βzySSS PART IDENTIFICATION: βhβ β ets
Power Supply Noise Rejection (Β±150mV Noise)
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β4k 10k 100k 1M
Noise Injection Frequency (Hz)
Temperature Ramp Response
100
)
~~ Ramp
g2 50 va
x
a 0
|Β§
$05 50 100 150 200
Time (s)
10
>_=| eee eee TCXO
2 β
oa 0
es 5 ee ee ee
a
-10
0 50 100 150 200
Time (s)
LVCMOS Output Waveform
(Vswing = 1.8V, 10pF load)
**----- End of picture text -----**
2 Faraday, Suite# B **|** Irvine **|** CA 92618 **Revised: 06.30.15** Ph. 949.546.8000 **|** Fax. 949.546.8001 Visit www.abracon.com for Terms and Conditions of Sale
**ABRACON IS** ISO9001:2008 **CERTIFIED**
**LLC**
ASTMTXK
1.54 x 0.84 x 0.60mm
## **Ultra-miniature, Low Power, 32.768kHz MEMS Oscillator**
**Pb RoHS/RoHS II compliant**
## **OUTLINE DIMENSION:** ki
## **Recommended Land Pattern**
**Pin Name I/O Functionality** Connect to ground. All GND pins must be connected to power supply ground. The GND pins can be **1,4** GND Power Supply Ground connected together, as long as both GND pins are connected to ground. **2** CLK Out OUT Oscillator clock output. Connect to power supply 1.5Vβ€Vddβ€3.63V. Under normal operating conditions, Vdd doesnβt require external bypass/decoupling capacitor(s). Internal **3** Vdd Power Supply power supply filtering will reject more than Β±150mVpp with frequency components through 10MHz.
**Dimensions: mm**
## CCL) **REFLOW PROFILE:**
|**Item**|**Conditions**|
|---|---|
|TSMAX to TL(Ramp-up Rate)|3Β°C/second max|
|Preheat||
|Temperature Minimum (TSMIN)|150Β°C|
|Temperature Typical (TSTYP)|175Β°C|
|Temperature Maximum (TSMAX)|200Β°C|
|Time (tS
)|s
d
n
o
c
e
s 0
8
1 β 0
6|
|Ramp-up Rate (TLto TP)|3Β°C/second max|
|Time Maintained Above||
|Temperature(TL)|217Β°C|
|Time (tL
)|s
d
n
o
c
e
s 0
5
1 β 0
6|
|Peak Temperature (TP)|260Β°C max|
|Target Peak Temperature (TPTarget)|255Β°C|
|Time within 5Β°C of actual peak (tP)|20 β 40 seconds|
|Max. Number of Reflow Cycles|3|
|Ramp-down Rate|6Β°C/second max|
|Time 25Β°C to Peak Temperature (t)|8 minutes max|
2 Faraday, Suite# B **|** Irvine **|** CA 92618 **Revised: 06.30.15** Ph. 949.546.8000 **|** Fax. 949.546.8001 Visit www.abracon.com for Terms and Conditions of Sale
**ABRACON IS** ISO9001:2008 **CERTIFIED** |
**LLC**
ASTMTXK
1.54 x 0.84 x 0.60mm
## **Ultra-miniature, Low Power, 32.768kHz MEMS Oscillator**
**==> picture [139 x 11] intentionally omitted <==**
**----- Start of picture text -----**
Pb RoHS/RoHS II compliant
**----- End of picture text -----**
**==> picture [286 x 16] intentionally omitted <==**
**----- Start of picture text -----**
ki TAPE & REEL:
**----- End of picture text -----**
**==> picture [445 x 61] intentionally omitted <==**
**----- Start of picture text -----**
Unit: mm
D0 D1 min. E1 E2 min. F P0 P1 P2
1.55Β±0.05 0.18 1.75Β±0.1 6.05 3.5Β±0.05 4.0Β±0.1 4.0Β±0.1 2.0Β±0.05
T T1 max. T2 max. W max. A0 B0 K0
0.20Β±0.02 0.1 1.55 8.3 0.96Β±0.03 1.66Β±0.03 0.63Β±0.03
**----- End of picture text -----**
|**Option**|**A max.**|**B min.**|**C**|**D min.**|**N**|**W1**|**W2 max.**|
|---|---|---|---|---|---|---|---|
|**T & T3**|**180**|**1.5**|**13.0+0.6/-0.2**|**20.2**|**60Β±0.5**|**8.4+1.5/-0 **|**14.4**|
|**T10**|**330**|**1.5**|**13.0Β±0.2**|**20.2**|**100Β±0.5**|**8.4+1.5/-0 **|**14.4**|
**T= Tape and reel (1,000pcs/reel) T3= Tape and reel (3,000pcs/reel) T10= Tape and reel (10,000pcs/reel)**
**ATTENTION:** Abracon Corporationβs products are COTS β Commercial-Off-The-Shelf products; suitable for Commercial, Industrial and, where designated, Automotive Applications. Abraconβs products are not specifically designed for Military, Aviation, Aerospace, Life-dependant Medical applications or any application requiring high reliability where component failure could result in loss of life and/or property. For applications requiring high reliability and/or presenting an extreme operating environment, written consent and authorization from Abracon Corporation is required. Please contact Abracon Corporation for more information.
2 Faraday, Suite# B **|** Irvine **|** CA 92618 **Revised: 06.30.15** Ph. 949.546.8000 **|** Fax. 949.546.8001 Visit www.abracon.com for Terms and Conditions of Sale
**ABRACON IS** ISO9001:2008 **CERTIFIED** "|
**LLC**
## Links
- [View this product on Novapart](https://novapart.co/products/ASTMTXK-32.768KHZ-LG-T/mems-oscillator-32768-khz-smd-154mm-x-084mm-5-ppm)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/abracon/astmtxk-32-768khz-lg-t/tcxo-32-768khz-lvcmos-smd-1-54x0/dp/3820137)
---
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