UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 656

• Manufacturer Part Number: UPD78F0537DGA(T)-9EV-A
• Description: 8BIT MCU, 128K FLASH, 7KB RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F0537DGA(T)-9EV-A

• Controller Family/series: UPD78
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

X1 Oscillator Characteristics
(T
Notes 1. Indicates only oscillator characteristics. Refer to AC Characteristics for instruction execution time.
Cautions 1. When using the X1 oscillator, wire as follows in the area enclosed by the broken lines in the
Remark For the resonator selection and oscillator constant, customers are requested to either evaluate the
656
Ceramic
resonator
Crystal
resonator
Resonator Recommended Circuit
A
= −40 to +110°C, 2.7 V ≤ V
2. It is 2.0 MHz (MIN.) when programming on the board via UART6.
2. Since the CPU is started by the internal high-speed oscillation clock after a reset release, check
oscillation themselves or apply to the resonator manufacturer for evaluation.
CHAPTER 31 ELECTRICAL SPECIFICATIONS ((A2) GRADE PRODUCTS: T
above figures to avoid an adverse effect from wiring capacitance.
• Keep the wiring length as short as possible.
• Do not cross the wiring with the other signal lines.
• Do not route the wiring near a signal line through which a high fluctuating current flows.
• Always make the ground point of the oscillator capacitor the same potential as V
• Do not ground the capacitor to a ground pattern through which a high current flows.
• Do not fetch signals from the oscillator.
the X1 clock oscillation stabilization time using the oscillation stabilization time counter status
register (OSTC) by the user. Determine the oscillation stabilization time of the OSTC register
and oscillation stabilization time select register (OSTS) after sufficiently evaluating the
oscillation stabilization time with the resonator to be used.
V
V
SS
SS
C1
C1
X1
X1
C2
C2
X2
X2
DD
= EV
X1 clock
oscillation
frequency (f
X1 clock
oscillation
frequency (f
Parameter
DD
≤ 5.5 V, V
X
X
)
)
User’s Manual U17260EJ6V0UD
Note 1
Note 1
SS
4.0 V ≤ V
2.7 V ≤ V
4.0 V ≤ V
2.7 V ≤ V
= EV
SS
DD
DD
DD
DD
= AV
≤ 5.5 V
< 4.0 V
≤ 5.5 V
< 4.0 V
Conditions
SS
= 0 V)
(A2) grade products: T
A
1.0
1.0
1.0
1.0
= −40 to +110°C)
MIN.
Note 2
Note 2
Note 2
Note 2
TYP.
A
= −40 to +110°C
SS
MAX.
20.0
10.0
20.0
10.0
.
MHz
MHz
Unit