H8/3656 Ver la hoja de datos (PDF) - Renesas Electronics
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H8/3656 Datasheet PDF : 453 Pages
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1.3.2 Pin Functions
Table 1-2 outlines the pin functions of the H8/3657 Series.
Table 1-2 Pin Functions
Pin No.
Type
TFP-80C,
TFP-80F,
Symbol FP-80A FP-80B
Power
VCC
source pins
13, 53 15, 55
VSS
AVCC
9, 52
76
11, 54
78
AVSS
5
7
Clock pins OSC1 10
12
OSC2 11
13
X1
8
10
X2
7
9
System
RES
12
14
control
TEST 6
8
Interrupt
pins
IRQ0
IRQ1
IRQ2
IRQ3
INT7 to
INT0
19
73
74
75
27 to
20
21
75
76
77
29 to
22
Timer pins TMOW 68
70
I/O
Input
Input
Input
Input
Input
Output
Input
Output
Input
Input
Input
Input
Output
Name and Functions
Power supply: All VCC pins should be
connectedto the system power supply
(+5 V)
Ground: All VSS pins should be connected
to the system power supply (0 V)
Analog power supply: This is the power
supply pin for the A/D converter. When the
A/D converter is not used, connect this pin
to the system power supply (+5 V).
Analog ground: This is the A/D converter
ground pin. It should be connected to the
system power supply (0 V).
System clock: These pins connect to a
crystal or ceramic oscillator, or can be
used to input an external clock.
See section 4, Clock Pulse Generators,
for a typical connection diagram.
Subclock: These pins connect to a
32.768-kHz crystal oscillator. See section
4, Clock Pulse Generators, for a typical
connection diagram.
Reset: When this pin is driven low,
the chip is reset
Test: This is a test pin, not for use in
application systems. It should be
connected to VSS.
IRQ interrupt request 0 to 3: These are
input pins for edge-sensitive external
interrupts, with a selection of rising or
falling edge
INT interrupt request 0 to 7: These are
input pins for edge-sensitive external
interrupts, with a selection of rising or
falling edge
Clock output: This is an output pin for
waveforms generated by the timer A output
circuit
8
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