UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 41

• 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

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2.2.10 P130 (port 13)
2.2.11 P140, P141 (port 14)
output, and buzzer output pins.
(1) Port mode
(2) Control mode
2.2.12 AV
converter.
P130 functions as a 1-bit output-only port.
Remark When the device is reset, P130 outputs a low level. Therefore, to output a high level from P130 before
P140 and P141 function as a 2-bit I/O port. These pins also function as external interrupt request input, clock
The following operation modes can be specified in 1-bit units.
This is the A/D converter reference voltage input pin and the positive power supply pin of P20 to P27 and A/D
When the A/D converter is not used, connect this pin directly to EV
Note Make the AV
P140 and P141 function as a 2-bit I/O port. P140 and P141 can be set to input or output port in 1-bit units using
port mode register 14 (PM14). Use of an on-chip pull-up resistor can be specified by pull-up resistor option
register 14 (PU14).
P140 and P141 function as external interrupt request input, clock output, and buzzer output pins.
(a) INTP6, INTP7
(b) PCL
(c) BUZ
Note OCD0A is provided to the
Remarks 1. For the product ranks, consult an NEC Electronics sales representative.
These are the external interrupt request input pins for which the valid edge (rising edge, falling edge, or both
rising and falling edges) can be specified.
This is a clock output pin.
This is a buzzer output pin.
REF
the device is reset, the output signal of P130 can be used as a pseudo reset signal of the CPU (see the
figure for Remark in 5.2.10 Port 13).
2. Only for the
REF
(OCD0A, OCD0B) when the on-chip debug function is used. For how to connect an in-circuit
emulator supporting on-chip debugging (QB-78K0MINI or QB-MINI2), see CHAPTER 27 ON-
CHIP DEBUG FUNCTION (
pin the same potential as the V
µ
PD78F0537D, X1 and X2 can be used as on-chip debug mode setting pins
µ
PD78F0537D only.
CHAPTER 2 PIN FUNCTIONS
User’s Manual U17260EJ6V0UD
µ
PD78F0537D ONLY).
DD
pin when port 2 is used as a digital port.
DD
or V
DD
Note
.
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