HD404339 Datasheet, PDF (4/78 Pages) Hitachi Semiconductor – 4-bit HMCS400-Series microcomputer with large-capacity memory

HD404339 Series
Pin Description
Pin Number
Item
Symbol DP-64S FP-64B I/O
Power supply V_CC
33
27
GND 16
10
Test
V_disp
64
58
(shared
with RA₁)
TEST 12
6
I
Reset
RESET 13
7
I
Oscillator
OSC₁ 14
8
I
OSC₂ 15
9
O
X1
17
11
I
X2
18
12
O
Port
D₀–D₁₃ 34–47 28–41 I/O
Interrupt
Stop clear
RA₁
64
58
I
R0₀–R0₃, 1–11, 1–5,
I/O
R3₀–R7₂ ^20–31 14–25,
59–64
R1₀–R2₃, 48–63 42–57 I/O
R8₀–R9₃
INT₀, INT₁ 34, 35 28, 29 I
STOPC 38
32
I
Serial interface SCK
8
2
I/O
SI
9
3
I
SO
10
4
O
Timer
TOC
11
5
O
EVNB 36
30
I
Alarm
BUZZ 37
31
O
Function
Applies power voltage
Connected to ground
Used as a high-voltage output power supply pin
when selected by the mask option
Cannot be used in user applications. Connect
this pin to GND.
Resets the MCU
Input/output pin for the internal oscillator.
Connect these pins to the ceramic or crystal
oscillator, or OSC₁ to an external oscillator
circuit.
Used with a 32.768-kHz crystal oscillator for
clock purposes
Input/output pins addressed individually by bits;
D₀–D₁₃ are all high-voltage I/O pins. Each pin
can be individually configured as selected by
the mask option.
One-bit high-voltage input port pin
Four-bit input/output pins consisting of standard
voltage pins
Four-bit input/output pins consisting of high
voltage pins
Input pins for external interrupts
Input pin for transition from stop mode to active
mode
Serial interface clock input/output pin
Serial interface receive data input pin
Serial interface transmit data output pin
Timer output pin
Event count input pin
Square waveform output pin
4