HD404324UFS View Datasheet(PDF) - Hitachi -> Renesas Electronics
Part Name
Description
Manufacturer
HD404324UFS Datasheet PDF : 94 Pages
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HD404328 Series
Pin Description
Item
Power
supply
Test
Symbol
VCC
GND
TEST
Reset
RESET
Oscillator OSC1
Pin Number
DP-64S
DC-64S FP-64B
64
58
16
10
10
4
13
7
11
5
Port
OSC2
X1
X2
D0–D8
12
6
14
8
15
17–25
9
11–19
D9, D10
R00–R53
Interrupt
Serial
interface
INT0, INT1
SCK
SI
SO
Buzzer
LCD
BUZZ
V1, V2, V3
26, 27 20, 21
28–51 22–45
26, 27
32
20, 21
26
33
27
34
28
35
29
1–3
59–61
COM1–COM4 60–63
SEG1–SEG24 36–59
54–57
30–53
FP-64A
56
8
2
5
3
4
6
7
9–17
18, 19
20–43
18, 19
24
25
26
27
57–59
52–55
28–51
I/O Function
Applies power voltage
Connected to ground
I
Used for factory testing only; connect
this pin to VCC
I
Resets the MCU
I
Input/output pins for the internal
oscillator circuit; connect them to a
crystal, ceramic, or external oscillator
circuit
O
I
Used for a 32.768-kHz crystal for
clock purposes; if not used, fix X1 to
VCC and leave X2 open
O
I/O Input/output ports addressed by
individual bits; pins D0–D7 are high-
current pins that can each supply up
to 15 mA
I
Input ports addressable by individual
bits
I/O Input/output ports addressable in 4-
bit units
I
Input pins for external interrupts
I/O Serial interface clock input/output pin
I
Serial interface receive data input pin
O Serial interface transmit data output
pin
O Buzzer signal output pin
Power pins for LCD driver; can be left
open in operation because they are
connected by internal voltage division
resistors (except for HD404324U,
HD404326U, HD404328U and
HD4074329U) Voltage conditions
are: VCC ≥ V1 ≥ V2 ≥ V3 ≥ GND
O Common signal pins for LCD
O Segment signal pins for LCD
5
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