◆CMOS
:Low Power Consumption
■APPLICATIONS
●Crystal
oscillator modules
●Communication
equipment
●Microcomputers
●Clock
units in motor control
●System
clocks on boards
●Timers
●Palmtops
◆Oscillation
Frequency : 4MHz ~ 70MHz
◆Built-In
Oscillator Capacitors
◆Divider
Ratio
: fo/1, fo/2, fo/4, fo/8
◆3-State
Output
◆Supply
Voltage
: 5.0V
◆Mini
Mold SOT-26 Package
The XC2151 series are a group of high frequency, CMOS
low power crystal oscillators with oscillator & divider circuitry,
oscillator capacitors and amplifier feedback resistors built-in.
An oscillator circuit can be created from just an external
crystal.
Output frequency can be selected from four frequencies :
Fundamental f0/1, Divided f0/2, f0/4, f0/8.
The output buffer is 3-State and has a fanout of 10 - TTL.
■GENERAL
DESCRIPTION
: Built-in oscillator capacitors
16pF (TYP.) (or selectable from 10 ~ 20pF)
: On-chip amplifier feedback resistor
5MΩ (TYP.) (or selectable from
1.6kΩ ~ 8.4kΩ)
Oscillation Frequency:
4MHz ~ 70MHz
Divider Ratio
: Selectable from f0/1, f0/2, f0/4, f0/8
Output
: 3-State, 10 - TTL fanout
Operating Voltage Range
: 4.0V ~ 6.0V
Small Supply Current
Stand-By Function
Low Cost
: Oscillator circuit can be created
from just an external crystal
Ultra Small Package
: SOT-26 (150mW) mini mold
■FEATURES
High Precision
■PIN
CONFIGURATION
■PIN
ASSIGNMENT
PIN NUMBER PIN NAME
1
/INH
2
XT
3
V
SS
4
Q
0
5
V
DD
6
/XT
FUNCTION
Control *
Oscillator Connection (Input)
GND
Output
Power Supply
Oscillator Connection (Output)
SOT-26
(TOP VIEW)
* Control pin has pull-up resistor built-in.
■INH,
Q
0
PIN FUNCTION
XC2151x51
/INH
"H"
"L"
open
Q
0
Output
High Impedance (oscillation stopped)
Output
Q
0
Output
High Impedance (oscillation stopped)
Output
XC2151x55
/INH
"H"
"L"
open
"H" = High level
"L" = Low level
1529
XC2151
Series
■PRODUCT
CLASSIFICATION
●Ordering
Information
XC21①②③④⑤⑥⑦⑧
DESIGNATOR
①
②
③
④
DESCRIPTION
Supply Voltage
Product Series
Duty Level
Output Capacity
Stand-By Mode &
Divider Ratio
Fundamental Rf, Cg, Dc
Package
Device Orientation
SYMBOL
5
1
A
C
T
5
1
2
4
8
5
-
M
R
L
DESCRIPTION
: 5.0V
: Large output capability
: CMOS (VDD/2) &TTL
: CMOS (VDD/2)
: TTL
: 10TTL
: f0/1 (CE)
: f0/2 (CE)
: f0/4 (CE)
: f0/8 (CE)
: f0/1 (OE)
: (Please refer to electrical characteristics tables)
: SOT-26
: Embossed tape, Standard feed
: Embossed tape, Reverse feed
⑤
⑥
⑦
⑧
■MARKING
RULE
①Represents
divider ratio
MARK
A
B
RATIO
f0/1
f0/2
MARK
C
D
RATIO
f0/4
f0/8
②Represents
stand-by mode, duty level & output capability
MARK
5
6
7
8
STAND-BY MODE
CE
CE
CE
OE
DUTY LEVEL
CMOS (V
DD
/2), TTL
CMOS (V
DD
/2)
TTL
XC2151T=TTL ,
XC2151C=CMOS
OUTPUT CAPABILITY
10TTL
10TTL
10TTL
10TTL
③Represents
fundamental and Rf, Cg, Cd
④Represents
assembly lot number
(based on internal standards)
1530
XC2151
Series
■BLOCK
DIAGRAM
1) XC2151A Series
2) XC2151T/C Series
■ABSOLUTE
MAXIMUM RATINGS
PARAMETER
Supply Voltage
Input Voltage
Power Dissipation
Operating Temparature Range
Storage Temparature Range
SYMBOL
V
DD
V
IN
Pd
Topr
Tstg
CONDITIONS
V
SS
- 0.3 ~ V
SS
+ 7.0
V
SS
- 0.3 ~ V
DD
+ 0.3
150
-30 ~ +75
-55 ~ +125
UNITS
V
V
mW
℃
℃
1531
XC2151
Series
■ELECTRICAL
CHARACTERISTICS
XC2151A510 / 519 ( Fundamental )
V
DD
=5.0V,
Fosc=20MHz,
No Load, Ta = 25℃
SYMBOL
V
DD
V
IH
V
IL
I
OH
I
OL
I
DD1
I
DD2
R
UP
Cg,Cd
Rf
I
OZ
V
OH
= 4.6V
V
OL
= 0.4V
/ INH = OPEN, Q
0
= OPEN
/ INH = "L"
/ INH = 4.5V
see note below
CONDITIONS
MIN.
4.0
2.4
−
−
16
−
−
50
−
−
−
TYP.
−
−
−
- 10
−
−
2
−
16
5
−
MAX.
6.0
−
0.4
−
−
12
5
200
−
−
10
UNITS
V
V
V
mA
mA
mA
μA
kΩ
pF
MΩ
μA
PARAMETER
Operating Supply Voltage
Input Voltage 'High'
Input Voltage 'Low'
Output Current 'High'
Output Current 'Low'
Supply Current 1
Supply Current 2
Input Pull-Up Resistance
Internal Oscillator Capacitance
Internal Oscillator Feedback Resistance
Output Disable Leak Current
Note : The values for Cg,Cd are the designed values with XC2151A510. The XC2151A519 is an external type.
XC2151A580 / 589 ( Fundamental, f0 / 8 )
V
DD
=5.0V,
Fosc=20MHz,
No Load, Ta = 25℃
SYMBOL
V
DD
V
IH
V
IL
I
OH
I
OL
I
DD1
I
DD2
R
UP
Cg,Cd
Rf
I
OZ
V
OH
= 4.6V
V
OL
= 0.4V
/ INH = OPEN, Q
0
= OPEN
/ INH = "L"
/ INH = 4.5V
see note below
CONDITIONS
MIN.
4.0
2.4
−
−
16
−
−
50
−
−
−
TYP.
−
−
−
- 10
−
−
2
−
16
5
−
MAX.
6.0
−
0.4
−
−
12
5
200
−
−
10
UNITS
V
V
V
mA
mA
mA
μA
kΩ
pF
MΩ
μA
PARAMETER
Operating Supply Voltage
Input Voltage 'High'
Input Voltage 'Low'
Output Current 'High'
Output Current 'Low'
Supply Current 1
Supply Current 2
Input Pull-Up Resistance
Internal Oscillator Capacitance
Internal Oscillator Feedback Resistance
Output Disable Leak Current
Note : The values for Cg,Cd are the designed values with XC2151A580. The XC2151A589 is an external type.
XC2151A ( Fundamental )
PART No.
XC2151A510
XC2151A520
XC2151A540
XC2151A580
XC2151A519
XC2151A529
XC2151A549
XC2151A589
DUTY LEVEL
CMOS (V
DD
/2), TTL
CMOS (V
DD
/2), TTL
CMOS (V
DD
/2), TTL
CMOS (V
DD
/2), TTL
CMOS (V
DD
/2), TTL
CMOS (V
DD
/2), TTL
CMOS (V
DD
/2), TTL
CMOS (V
DD
/2), TTL
OUTPUT
10TTL
10TTL
10TTL
10TTL
10TTL
10TTL
10TTL
10TTL
DIVIDER RATIO
f0 / 1
f0 / 2
f0 / 4
f0 / 8
f0 / 1
f0 / 2
f0 / 4
f0 / 8
Rf (MΩ)
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
Cg/Cd (pF)
16
16
16
16
16 (ext.)
16 (ext.)
16 (ext.)
16 (ext.)
RECOMMENDED
FREQUENCY RANGE
4MHz
4MHz
4MHz
4MHz
4MHz
4MHz
4MHz
4MHz
to 30MHz
to 30MHz
to 30MHz
to 30MHz
to 30MHz
to 30MHz
to 30MHz
to 30MHz
1532
XC2151
Series
■SWITCHING
CHARACTERISTICS
XC2151T
TTL Duty, V
DD
=5.0V,
Ta = 25℃
SYMBOL
T
TLH
T
THL
DUTY
CONDITIONS
Load=10TTL,
Load=10TTL,
0.4V
2.4V
2.4V
0.4V
MIN.
−
−
45
TYP.
−
−
−
MAX.
5
5
55
UNITS
nsec
nsec
%
PARAMETER
Output Rise Time
Output Fall Time
Duty Cycle
Load=10TTL @ 1.4V
1533
