The SM5021 series are crystal oscillator module ICs fabricated in NPC’s Molybdenum-gate CMOS, that
incorporate high-frequency, low current consumption oscillator and output buffer circuits. Highly accurate
thin-film feedback resistors and high-frequency capacitors are built-in, eliminating the need for external com-
ponents to make a stable 3rd overtone oscillator.
FEATURES
I
I
I
I
I
3rd overtone oscillation
Oscillator capacitors C
G
, C
D
built-in
Inverter amplifier feedback resistor built-in
(A×, B× series)
TTL input level
Output drive capability
• 4mA (V
DD
= 2.7V)
• 8mA (V
DD
= 4.5V)
I
I
I
I
I
Output three-state function
Operating supply voltage range
• 2.7 to 5.5V (A×, K× series)
• 4.5 to 5.5V (B×, L× series)
Oscillator frequency output
6-pin SOT (SM5021××H)
Chip form (CF5021××)
SERIES CONFIGURATION
Operating supply
voltage range [V]
Chip
SM5021AAH
SM5021ABH
SM5021ACH
SM5021ADH
SM5021AEH
SM5021BAH
SM5021BBH
SM5021BCH
SM5021BDH
SM5021KDH
SM5021KEH
SM5021LDH
2.7 to 5.5
2.7 to 3.6
4.5 to 5.5
2.7 to 5.5
2.7 to 3.6
4.5 to 5.5
22 to 50
*3
50 to 70
*3
×
4.5 to 5.5
4.5 to 5.5
×
2.7 to 3.6
×
2.7 to 5.5
2.7 to 5.5
4.5 to 5.5
SOT
4.5 to 5.5
Recommended
operating frequency
range
*2
[MHz]
3V
5V
operation operation
×
22 to 30
30 to 40
40 to 50
50 to 70
22 to 30
30 to 43
43 to 55
55 to 70
×
22 to 30
30 to 43
43 to 55
55 to 70
22 to 70
*3
×
22 to 70
*3
8
8
15
12
15
8
15
12
8
15
Built-in
capacitance
[pF]
C
G
C
D
1
1
2
3
4
1
1
2
3
3
4
3
6.0
3.3
3.9
2.7
2.7
6.0
3.3
3.9
2.7
–
–
fo
fo
CMOS
TTL
High impedance
High impedance
fo
TTL
High impedance
fo
CMOS
High impedance
Version
*1
gm
ratio
Rf
[kΩ]
Output
frequency
Output
level
Standby output
state
*1. Chip form devices have designation CF5021××.
*2. The recommended operating frequency is a yardstick value derived from the crystal used for NPC characteristics authentication. However, the oscilla-
tor frequency band is not guaranteed. Specifically, the characteristics can vary greatly due to crystal characteristics and mounting conditions, so the
oscillation characteristics of components must be carefully evaluated.
*3. The 3rd overtone frequency range using an external resistor to set the cutoff frequency.
ORDERING INFORMATION
Device
SM5021××H
CF5021××–2
Package
SOT23-6
Chip form
SEIKO NPC CORPORATION —1
SM5021 series
PAD LAYOUT
(Unit:
µm)
PINOUT
(Top view)
Q
XTN (1000,800)
HA5021
INHN
1
2
3
6
5
4
XTN
VDD
Q
VDD
XT
(0,0) VSS
XT INHN
VSS
Chip size
: 1.00
×
0.80mm
Chip thickness : 220 ± 30µm
Chip base
: V
DD
level
PIN DESCRIPTION and PAD DIMENSIONS
Pad dimensions [µm]
Number
1
2
3
4
5
6
Name
INHN
XT
VSS
Q
VDD
XTN
I/O
I
I
–
O
–
O
Description
X
Output state control input. High impedance when LOW. Pull-up resistor built in
Amplifier input.
Ground
Output. Output frequency (f
O
)
Supply voltage
Amplifier output.
Crystal oscillator connection pins.
Crystal oscillator is connected between XT and XTN
Crystal oscillator connection pins.
Crystal oscillator is connected between XT and XTN
771
553
150
150
796
836
Y
150
150
140
649
409
636
SEIKO NPC CORPORATION —2
SM5021 series
PACKAGE DIMENSIONS
(Unit: mm)
•
6-pin SOT
+ 0.2
1.6
−
0.1
+ 0.2
2.8
−
0.3
1.9
±
0.2
2.9
±
0.2
0.4
±
0.1
0.12
M
1.1
±
0.1
0 to 0.15
+ 0.1
0.15
−
0.05
0.95
0.1
BLOCK DIAGRAM
VDD VSS
XTN
X'tal
R
fo
C
G
R
f
C
D
0.20MIN
Q
XT
INHN
SEIKO NPC CORPORATION —3
SM5021 series
SPECIFICATIONS
Absolute Maximum Ratings
V
SS
= 0V
Parameter
Supply voltage range
Input voltage range
Output voltage range
Operating temperature range
Storage temperature range
Output current
Power dissipation
Symbol
V
DD
V
IN
V
OUT
T
opr
Chip form
T
stg
I
OUT
P
D
SOT23-6
SOT23-6
Condition
Rating
−
0.5 to + 7.0
−
0.5 to V
DD
+ 0.5
−
0.5 to V
DD
+ 0.5
−
40 to + 85
−
65 to + 150
−
55 to + 125
13
250
Unit
V
V
V
°C
°C
mA
mW
Recommended Operating Conditions
V
SS
= 0V, f
≤
70MHz, C
L
≤
15pF
Rating
Parameter
Supply voltage
Input voltage
Operating temperature
Symbol
V
DD
V
IN
T
OPR
Condition
min
2.7
V
SS
−
20
typ
–
–
–
max
5.5
V
DD
+ 80
V
V
°C
Unit
Note: Recommended operating conditions will change in accordance with operating frequency, load capacitance, or power dissipation.
SEIKO NPC CORPORATION —4
SM5021 series
Electrical Characteristics
3V operation: AA, AB, AC, AD, AE, KD, KE series
V
DD
= 2.7 to 3.6V, V
SS
= 0V, Ta =
−
20 to + 80°C unless otherwise noted.
Parameter
Symbol
Condition
SM5021×AH, CF5021×A
SM5021×BH, CF5021×B
SM5021×CH, CF5021×C
SM5021×DH, CF5021×D
SM5021×EH, CF5021×E
SM5021×AH, CF5021×A
SM5021×BH, CF5021×B
SM5021×CH, CF5021×C
SM5021×DH, CF5021×D
SM5021×EH, CF5021×E
2.0
–
–
–
–
25
SM5021×AH, CF5021×A
Feedback resistance
(A× series only)
SM5021×BH, CF5021×B
R
f
Measurement cct 5
SM5021×CH, CF5021×C
SM5021×DH, CF5021×D
SM5021×EH, CF5021×E
C
G
Built-in capacitance
Design value. A monitor pattern on a wafer is tested.
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