HD404629R Datasheet, PDF (9/157 Pages) Renesas Technology Corp – AS Microcomputer Incorporating a DTMF Generator Circuit

HD404629R Series
Pin Description
Item
Power
supply
Test
Symbol
V_CC
GND
TEST
Reset
Oscillato
r
RESET
OSC₁
OSC₂
Pin Number
FP-100B
TFP-100B FP-100A I/O
97
99
13
15
7
9
I
10
12
I
8
10
I
9
11
O
X1
11
13
I
X2
12
14
O
Port
D₀–D₉
14–23
Interrupt
Stop clear
D₁₀, D₁₁
R0₀–R7₃
INT₀, INT₁,
INT₂–INT₄
STOPC
24, 25
26–57
25–29
24
Serial
interface
Timer
LCD
SCK
SI
SO
TOB, TOC,
TOD
EVNB, EVND
V₁, V₂, V₃
35
36
37
30–32
33, 34
94–96
16–25
I/O
26, 27
I
28–59
I/O
27–31
I
26
I
37
I/O
38
I
39
O
32–34
O
35, 36
I
96–98
COM1–COM4 90–93
SEG1–SEG52 38–89
92–95
O
40–91
O
Function
Applies power voltage
Connected to ground
Used for factory testing only: Connect this pin
to V_CC
Resets the MCU
Input/output pins for the internal oscillator
circuit:
Connect them to a ceramic oscillator ,crystal
oscillator or connect OSC₁ to an external
oscillator
curcuit
Used for a 32.768-kHz crystal for clock
purposes.
If not to be used, fix the X1 pin to V_CC and
leave
the X2 pin open.
Input/output pins addressed by individual bits;
pins D₀–D₉ are high-current pins that can each
supply up to 15 mA
Input pins addressable by individual bits
Input/output pins addressable in 4-bit units
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 pins
Event count input pins
Power pins for LCD controller/driver; may be left
open during operation since they are connected by
internal voltage division resistors.
Voltage conditions are: V_CC ≥ V₁ ≥ V₂ ≥ V₃ ≥ GND
Common signal pins for LCD
Segment signal pins for LCD
7