UPD75218 NEC, UPD75218 Datasheet - Page 46

• Manufacturer Part Number: UPD75218
• Description: 4-BIT SINGLE-CHIP MICROCOMPUTER
• Manufacturer: NEC

46
RECOMMENDED PARAMETERS FOR THE OSCILLATION CIRCUIT
When a ceramic resonator is used for the main system clock (T
When a ceramic resonator is used for the main system clock (T
When a crystal resonator is used for the main system clock (T
When a crystal resonator is used for the subsystem clock (T
Caution When finely adjusting the oscillation frequency of a crystal resonator, adjust external capacitance C1 or
C3.
Murata
Mfg.
Kyocera
Kyocera
Kinseki
Manu-
facturer
Manu-
facturer
Manu-
facturer
Manu-
facturer
CSA
CST
CSA
CST
CSA
CST
CSA
CST
CSA
CST
KBR-2.0MS
KBR-4.0MWS
KBR-4.19MWS
KBR-4.19MSA
KBR-4.19MKS
PBRC 4.19A
KBR-6.0MWS
KBR-6.0MSA
KBR-6.0MKS
PBRC 6.00A
Product name
KF-38G
HC-49/U-S
Product name
Product name
Product name
MG
MGW093
MGWU
MGW
MGW
MG
MG093
MGU
MG
MG
Oscillation
frequency (MHz)
32.768
Oscillation frequency
(MHz)
Oscillation frequency
(MHz)
Oscillation frequency
(MHz)
3.072 to 6.000
2.00 to 2.44
2.45 to 3.50
2.51 to 6.00
2.45 to 3.50
2.51 to 6.00
4.19
2.0
4.0
6.0
C1 (pF
External capacitance and
resistance
18
)
a
= -15 to +60 ˚C)
a
External capacitance
(pF)
External capacitance
(pF)
External capacitance
(pF)
a
a
= -20 to +70 ˚C)
Built-in
Built-in
Built-in
Built-in
Built-in
Built-in
Built-in
Built-in
Built-in
C2 (pF)
= -40 to +70 ˚C)
= -20 to +80 ˚C)
C1
C1
30
30
30
30
30
47
33
33
33
33
33
C1
18
18
Built-in
Built-in
Built-in
Built-in
Built-in
Built-in
Built-in
Built-in
Built-in
R (k )
220
C2
30
30
30
30
30
C2
47
33
33
33
33
33
C2
18
Oscillation voltage
range (V)
Oscillation voltage
range (V)
Oscillation voltage
range (V)
Oscillation voltage
range (V)
Min.
Min.
Min.
Min.
2.7
3.0
3.3
2.7
4.0
2.7
Max.
Max.
Max.
Max.
6.0
6.0
6.0
6.0
PD75218