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CY24212
PRELIMINARY
Document #: 38-07402 Rev. *B
Page 2 of 6
Pin Description
Name
Pin Number Description
XIN
1
Reference Input.
VDD
2
Voltage Supply.
VCXO
3
Input Analog Control for VCXO.
VSS
4
Ground.
CLKA
5
27-MHz Clock Output.
FSEL (-1,-2)
6
Input Frequency Select, Weak Internal Pull-up.
FSEL = 0, XIN = 13.5 MHz
FSEL = 1, XIN = 27 MHz
FSEL (-3,-5)
6
Output Frequency Select, Weak Internal Pull-up.
FSEL = 0, CLKA = 27 MHz, CLKB = 27 MHz
FSEL = 1, CLKA = 27 MHz, CLKB = 27.027 MHz
VSS (-1)
7
Ground.
CLKB (-2)
7
27 MHz.
CLKB (-3,-5)
7
27 MHz/27.027 MHz.
XOUT[1]
8
Reference Output.
Pullable Crystal Specifications
Parameter
Name
Min
Typ
Max
Unit
CRload
Crystal Load Capacitance
14
pF
C0/C1
240
ESR
Equivalent Series Resistance
35
50
Ω
To
Operating Temperature
0
70
°C
Crystal Accuracy
Crystal Accuracy
+ 20
ppm
TTs
Stability over Temperature and Aging
+ 50
ppm
Absolute Maximum Conditions
Parameter
Description
Min
Max
Unit
VDD
Supply Voltage
–0.5
7.0
V
TS
Storage Temperature[2]
–65
125
°C
TJ
Junction Temperature
125
°C
Digital Inputs
VSS – 0.3
VDD + 0.3
V
Electrostatic Discharge
2
kV
Recommended Operating Conditions
Parameter
Description
Min
Typ
Max
Unit
VDD
Operating Voltage
3.135
3.3
3.465
V
TA
Ambient Temperature
0
70
°C
CLOAD
Max. Load Capacitance
15
pF
fREF
Reference Frequency
13.5
27
MHz
Notes:
1.
Float XOUT if XIN is externally driven.
2.
Rated for ten years.
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