kHz Range Crystal Oscillators
Clock Oscillators Surface Mount Type
KC2520B Series(32.768kHz)
CMOS/ 1.8V
〜
5.0V/ 2.5
×
2.0mm
Features
• Miniature ceramic package
2.5 (L)
×
2.0 (W)
×
0.7 (H) mm (Typ.)
• Highly reliable with seam welding
• CMOS output
•
Supply voltage 1.8/ 2.5/ 3.3/ 5.0V
Wide operating voltage range 1.6
to
5.5V
• Low current consumption
Applications
• Consumer/ Mobile Equipment
How to Order
KC2520B
32K7680
C M 2 E 00
① ② ③ ④ ⑤ ⑥ ⑦
①
Series
②
Output Frequency (32.768kHz)
③
Output Type (CMOS)
④
Supply Voltage (1.8V, 2.5V, 3.3V, 5.0V Compatible)
⑤
Frequency Tolerance (See Specications)
⑥
Symmetry/ INH Function
(45/ 55%, Stand-by)
⑦
Customer Special Model Sufx
(STD Specication is “00”)
Packaging (Tape & Reel 2000 pcs./ reel)
Plating: Ni+Au
Tolerance: ±0.1
Pad Connections
#1
INH
#2 Case GND
#3 Output
#4 VCC
INH Function
Pad1 Pad3 (Output)
Open Active
"H" Level Active
"L" Level
High Z (No-Oscillation)
2.5
2.0
0.6
0.7
0.6
0.6
0.15
0.7
0.9
0.7
0.15
#1#2
#3 #4
Dimensions (Unit: mm)
Note: A capacitor of value 0.01µF between V
CC
and GND is recommended.
1.85
0.95
1.45
1.05
Recommended Land Pattern
(Unit: mm)
Specifications
Item Symbol Conditions
Specifications
Units
Min. Max.
Output Frequency Range fo 32.768 kHz
Frequency Tolerance f
_tol
Initial (25
°
C), Stability (
−
40 to 85
°
C), Voltage change
−
25
+
25
×
10
−
6
Aging (@1year) −3
+
3
Other (load change, shock and vibration) −4
+
4
Storage Temperature Range T
_stg
−
55
+
125
°
C
Operating Temperature Range
T_use
−
40
+
85
°
C
Max. Supply Voltage —
−
0.3
+
7.0 V
Supply Voltage V
CC
+
1.6
+
5.5 V
Current Consumption
(Maximum Loaded/ 1.6
≤
VCC
≤
2.0V)
ICC
— 120
μ
A
Current Consumption
(Maximum Loaded/ 2.0
<
VCC
≤
2.8V)
— 126
Current Consumption
(Maximum Loaded/ 2.8
≤
VCC
≤
3.63V)
— 130
Current Consumption
(Maximum Loaded/ 3.63
≤
VCC
≤
5.5V)
— 140
Stand-by Current I
_std — 10
μ
A
Symmetry SYM @50% V
CC 45 55 %
Rise/ Fall Time
(10% VCC to 90% VCC Maximum Loaded)
tr/ tf — 50 ns
Low Level Output Voltage V
OL IOL
=
1mA — 10% V
CC
V
High Level Output Voltage V
OH IOH
=−
1mA 90% V
CC —
Output Load L_CMOS CMOS Output — 15 pF
Low Level Input Voltage V
IL — 30% VCC
V
High Level Input Voltage V
IH 70% VCC —
Disable Time t
_dis — 100 ns
Enable Time t
_ena — 2 ms
Start−up Time t
_str @Minimum operating voltage to be 0 sec. — 5 ms
Note: All electrical characteristics are defined at the maximum load and operating temperature range.
RoHS Compliant
