UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 42

• 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

2.2.13 AV
the same potential as the V
2.2.14 RESET
2.2.15 REGC
pin to V
2.2.16 V
2.2.17 V
2.2.18 FLMD0
42
This is the A/D converter ground potential pin. Even when the A/D converter is not used, always use this pin with
This is the active-low system reset input pin.
This is the pin for connecting regulator output (2.5 V) stabilization capacitance for internal operation. Connect this
Caution Keep the wiring length as short as possible for the broken-line part in the above figure.
V
EV
Always make EV
V
EV
Always make EV
This is a pin for setting flash memory programming mode.
Connect FLMD0 to EV
In flash memory programming mode, connect this pin to the flash memory programmer.
DD
SS
DD
SS
is the ground potential pin for P121 to P124 and other than ports.
is the positive power supply pin for P121 to P124 and other than ports.
SS
is the ground potential pin for ports other than P20 to P27 and P121 to P124.
is the positive power supply pin for ports other than P20 to P27 and P121 to P124.
DD
SS
via a capacitor (0.47 to 1
SS
and EV
and EV
SS
DD
DD
SS
the same potential as V
the same potential as V
SS
SS
or V
pin.
SS
in the normal operation mode.
µ
F: recommended).
CHAPTER 2 PIN FUNCTIONS
User’s Manual U17260EJ6V0UD
SS
DD
.
.
REGC
V
SS