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Seiko Instruments Crystal Oscillators (32.768kHz)

Product name Appearance  Basic specifications 
Frequency deviation Load capacitance
VT-200-F Cylinder ± 5 ppm,
± 10 ppm,
± 20 ppm
4.5 to 12.5 pF
SSP-T7-F SMD

± 20 ppm,
± 50 ppm

7.0 to 12.5 pF

 

 

Seiko Instruments Real-time Clock

Model No.

Data Sheet

Type Features 

Operation
Voltage

Current Consumption

Package

S-35390A pdf (614KB) 2-wire Super-low 0.25 µA current consumption 1.1 to 5.5 V
(time keeping operation voltage)
0.25 µA (3.0 V) 8-pin SOP
8-pin TSSOP
SNT-8A
S-35392A pdf (413KB) 2-wire Constant 32kHz output   1.1 to 5.5 V
(time keeping operation voltage) 
0.45 µA (3.0 V)  SNT-8A
S-35399A02 pdf (848KB) 2-wire 24-bit counter, Alarm settable to day/month/year, Constant 32kHz output  1.1 to 5.5 V
(time keeping operation voltage) 
0.34 µA (3.0 V)  WLP-12A
S-35399A03 pdf (769KB) 2-wire 24-bit counter, Alarm settable to day/month/year  1.1 to 5.5 V
(time keeping operation voltage) 
0.34 µA (3.0 V)  8-pin SOP
S-78390A Series Under Development 2-wire Switch Input Detection Function  1.1 to 5.5 V
(time keeping operation voltage) 
0.35 µA (3.0 V)  
S-35190A pdf (599KB) 3-wire Super-low 0.25 µA current consumption  1.1 to 5.5 V
(time keeping operation voltage) 
0.25 µA (3.0 V)  8-pin SOP
8-pin TSSOP
SNT-8A
S-35192A pdf (366KB) 3-wire Constant 32kHz output  1.1 to 5.5 V
(time keeping operation voltage) 
0.45 µA (3.0 V)  SNT-8A
S-35199A01 pdf (741KB) 3-wire 24-bit counter
Alarm settable to day/month/year
Constant 32kHz output 
1.1 to 5.5 V
(time keeping operation voltage) 
0.34 µA (3.0 V) WLP-12A
S-78190A Series 3-wire Switch Input Detection Function  1.1 to 5.5 V
(time keeping operation voltage) 
0.35 µA (3.0 V)  WLP-16A
(S-78190A,
S-78390A)