HD404369 Datasheet, PDF (7/117 Pages) Hitachi Semiconductor – 4-bit HMCS400-Series microcomputer

HD404369 Series
Pin Description
Item
Power
Supply
Test
Symbol
V_CC
GND
TEST
Reset RESET
Oscillator OSC₁
Port
OSC₂
X1
X2
D₀–D ₁₃
RA₁
R0₀–R0₃,
R3₀–R9₃
R1₀–R2₃
Interrupt INT₀, INT₁
Stop clear STOPC
Serial SCK
Interface SI
SO
Timer TOC
EVNB
Alarm BUZZ
Pin Number
DP-64S FP-64B FP-64A I/O Function
33
27
25
Applies power voltage
16
10
8
Connected to ground
12
6
4
I Cannot be used in user applications. Connect this
pin to GND.
13
7
5
I Resets the MCU
14
8
6
I Input/output pin for the internal oscillator. Connect
these pins to the ceramic oscillator or crystal
oscillator, or OSC₁ to an external oscillator circuit.
15
9
7
O
17
11
9
I Used with a 32.768-kHz crystal ocillator for clock
purposes
18
12
10
O
34–47 28–41 26–39 I/O Input/output pins consisting of standard voltage
pins addressed individually by bits
64
58
56
I One-bit standard-voltage input port pin
1–11, 1–5, 1–3, I/O Four-bit input/output pins consisting of standard
20–31, 14–25, 12–23,
voltage pins
48–55 42–49, 40–47,
59–64 57–64
56–63 50–57 48–55 I/O Four-bit input/output pins consisting of
intermediate voltage pins
34, 35 28, 29 26, 27 I Input pins for external interrupts
38
32
30
I Input pin for transition from stop mode to active
mode
8
2
64
I/O Serial interface clock input/output pin
9
3
1
I Serial interface receive data input pin
10
4
2
O Serial interface transmit data output pin
11
5
3
O Timer output pin
36
30
28
I Event count input pin
37
31
29
O Square waveform output pin
5