UPD78F9500MA-CAC-A Datasheet, PDF (20/342 Pages) Renesas Technology Corp – 8-Bit Single-Chip Microcontrollers

1.5 Block Diagram
1.5.1 μPD78F920x
CHAPTER 1 OVERVIEW
TO00/TI010/P21
TI000/P20
TOH1/P20
16-bit TIMER/
EVENT COUNTER 00
8-bit TIMER H1
LOW-SPEED
INTERNAL
OSCILLATOR
WATCHDOG TIMER
ANI0/P20-
ANI3/P23
4
A/D CONVERTER
INTP0/P21
INTP1/P32
INTERRUPT
CONTROL
78K0S
CPU
CORE
FLASH
MEMORY
INTERNAL
HIGH-SPEED
RAM
VDD^Note1 VSSNote2
PORT 2
PORT 3
PORT 4
4 P20-P23
P32
P34
2 P40, P43
POWER ON CLEAR/
LOW VOLTAGE
INDICATOR
POC/LVI
CONTROL
RESET CONTROL
SYSTEM
CONTROL
HIGH-SPEED
INTERNAL
OSCILLATOR
RESET/P34
X1/P23
X2/P22
Notes 1. In μPD78F920x, VDD functions alternately as the A/D converter reference voltage input. When using the
A/D converter, stabilize VDD at the supply voltage used (2.7 to 5.5 V).
2. In μPD78F920x, VSS functions alternately as the ground potential of the A/D converter. Be sure to
connect VSS to a stabilized GND (= 0 V).
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User’s Manual U18172EJ3V0UD