HD404054 Datasheet, PDF (4/101 Pages) Hitachi Semiconductor – HMCS400-series microcomputers designed to increase program productivity with large-capacity memory

HD404054 Series/HD404094 Series
Pin Description
Pin Number
Item
Symbol DP-42S FP-44A I/O Function
Power supply V_CC
42
38
GND
11
6
Applies power voltage
Connected to ground
Test
Reset
TEST
7
2
RESET 10
5
I
Used for factory testing only: Connect this pin to V_CC
I
Resets the MCU
Oscillator
Port
OSC₁
OSC₂
D₀–D₉
8
9
12–21
3
4
7–16
I
O
I/O* Input/output pins addressed by individual bits; pins
D₀–D₃ are high-current source pins that can each
supply up to 10 mA.
The HD404054 Series: pins D₄–D₉are high-current
sink pins that can each supply up to 15mA.
The HD404094 Series: D₄–D₇ are intermediate
voltage (12 V) NMOS open-drain pins, and D₈, D₉ are
high-current sink pins that can each supply up to 15
mA.
Interrupt
Stop clear
D₁₂,D₁₃
R0₀–R4₃
RD₀–RD₃,
RC₀, RE₀
INT₀, INT₁
STOPC
22, 23
24–40
1–6
23, 24
22
17, 18 I
19–36 I/O
39–43,1 I
Input pins addressable by individual bits
Input/output pins addressable in 4-bit units
Input pins addressable in 4-bit units
18, 19 I
17
I
Input pins for external interrupts
Input pin for transition from stop mode to active mode
Serial
Timer
SCK₁
38
SI₁
39
SO₁
40
TOC, TOD 34, 35
34
35
36
30, 31
I/O Serial clock input/output pin
I
Serial receive data input pin
O Serial transmit data output pin
O Timer output pins
EVND
37
33
I
Event count input pins
Comparator COMP₀, 1, 2
COMP₁
VC _ref
6
39, 40 I
Analog input pins for voltage comparator
1
Reference voltage pin for inputting the threshold
voltage of the analog input pin.
Division rate SEL
41
37
I
Input pin for selecting system clock division rate after
RESET input or after stop mode cancellation.
1/4 division rate: Connect it to V_CC
1/32 division rate: Connect it to GND
Note: * D₄–D₇ of the HD404094 Series are output pins.
4