SH-32R

High accuracy Crystal Oscillator 32.768kHz

Features・Excellent frequency accuracy and Temperature
characteristics
・Low current consumption
・Complete Pb-free
・Incorporated highly reliable photolithographic
crystal resonator

Applications
Smart Meter, IoT,Wearable device,
Industry device,High precision timing device,
Event data recorderSpecifications
Item

SymbolSpecifications

Unit

Nominal Frequency

f_nom

32.768kHz

Frequency tolerance

f_tol±3×10-6

Frequency temperature coefficient

f0-Tc±50×10-6-40 to +85℃(+25℃ is reference)

Frequency / voltage coefficient

f0_VDD±1×10-6/V

VDD1.5V to 3.63V

VDD

1.5～3.63

V

Storage temperature

T_stg-40～+105℃

Operating temperature

T_use-40～+85℃

1.3 typ.

μA

2.5 max.

μA

Supply VoltageConditions Note

Current consumption

IDD

Symmetry

SYM

40/60

％

Load：30pF

Rise timetr

40 max.

ns

Load：30pF output level 0.1VDD→0.9VDD

Fall timetf

40 max.

nsLoad：30pF output level 0.9VDD→0.1VDD

VIL

0.2VDD max.

V

INHN terminal

VIH

0.8VDD min.

V

INHN terminal

VOL

0.1VDD max.

VQ terminal

VOH

0.9VDD min.

VQ terminal

Output load condition (CMOS)

CLOUT

30 max.

pF

CMOS Loading

Start-up time

t_str

0.5 max.

secInput voltage
Output voltage

No load condition±3×10-6
First year
Unless otherwise stated, characteristics (specifications) shown in the above table are based on the Ta=+25℃、VDD=3.3V condition.
f_aging

Frequency aging

Dimensions

Temperature characteristic
Temperature characteristic graph(ability example)◆ Crystal■ SH-32R4020⊿F/F(ppm)

0-20-40

PIN MapPinConnection

Function#1INHNQ terminal output selector#2VSS

Connects to GND#3

Q

Outputs 32.768kHz

#4

VDD

Connects to VDD-60-80-100-120-40-2002550Temp.(℃)

7085

SH-32R

High accuracy Crystal Oscillator 32.768kHz
Maximum Rating
Item

SymbolSupply voltage range

VDD

VDD-Vss

Conditions

Rated value

Unit
V

Input voltage range

Vininput terminal（INHN）-0.3～+4.5-0.3～VDD+0.3

Output voltage range

Vout

Output terminal（Q）-0.3～VDD+0.3

V

output current

Iout

Output terminal（Q）

±10mA

V

*It is a value that should not be exceeded even for a moment.

Operating Condition
Item

Symbl

Min.

Typ.

Max.

Unit

VDD rise time

tVDD--10ms/V

VDD OFF time

tOFF

0.5--msec

VDD OFF voltage

Vbot

--0V

◆In order to start oscillation correctly, VDD must be kept at 0V for 0.5msec or more, and then start up at less than 10ms/V.
Please note that 32.768kHz oscillation will not start if V DD is restarted without dropping to 0V.

Timing chart for applying power supply voltage
tVDD

VDD

tVDD
VDD＝1.5VVDD＝1.5V

Vbot

tOFF

INHN

t_STR

t_STR

Hi-ZQ
*Oscillation startup time (t_STR) is operated by the boot circuit, and the oscillation frequency is not 32.768kHz±3ppm.

Circuit connection with MCU
Connection example 1Connection example 2

Connect the VDD pin and the INHN pin if the 32kHz output
ON/OFF operation is not to be performed.

Input High/Low to the INHN pin to turn the 32kHz output ON/OFF.

VDD

VDD
32kHz out

32kHz out

34VDD

Q

INHN

VSS

10.1μF

12Vin0.1μF

Connect a bypass capacitor (0.01μF to 0.1μF) between the power supply pins (V DD-VSS).

Q terminal output setting
Terminal INHN (Vin)34Terminal Q

RemarksHigh

0.8VDD～VDD+0.3

32kHzOutput―Low-0.3V～0.2VDD

Hi-Z

―OPEN

――

Do not use

VDD

Q

INHN

VSS2