HD404829R Datasheet, PDF (9/149 Pages) Renesas Technology Corp – AS Microcomputer Incorporating a LCD controller/Driver Circuit

HD404829R Series
Pin Description
Pin Number
Item
Symbol
FP-100B
TFP-100B
FP-100A
I/O Function
Power
V_CC
97
99
supply
GND
13
15
Applies power voltage
Connected to ground
Test
TEST
7
Reset
RESET
10
9
I
Used for factory testing only: Connect this pin to V_CC
12
I
Resets the MCU
Oscillator OSC₁
8
OSC₂
9
10
I
Input/output pins for the internal oscillator circuit:
11
O
Connect them to a ceramic oscillator ,crystal
oscillator or connect OSC₁ to an external oscillator
curcuit
X1
11
13
I
Used for a 32.768-kHz crystal for clock purposes.
X2
12
14
O
If not to be used, fix the X1 pin to V_CC and leave
the X2 pin open.
Port
D₀–D₉
14–23
16–25
I/O Input/output pins addressed by individual bits; pins
D₀–D₉ are high-current pins that can each supply up
to 15 mA
Interrupt
Stop clear
D₁₀, D₁₁
R0₀–R7₃
INT₀, INT₁,
INT₂–INT₄
STOPC
24, 25
26–57
25–29
24
26, 27
28–59
27–31
26
I
Input pins addressable by individual bits
I/O Input/output pins addressable in 4-bit units
I
Input pins for external interrupts
I
Input pin for transition from stop mode to active
mode
Serial
SCK
35
37
I/O Serial interface clock input/output pin
interface _SI
36
38
I
Serial interface receive data input pin
SO
37
39
O
Serial interface transmit data output pin
Timer
TOB, TOC,
TOD
30–32
32–34
O
Timer output pins
EVNB, EVND 33, 34
35, 36
I
Event count input pins
LCD
V₁, V₂, V₃
94–96
COM1–COM4 90–93
96–98
92–95
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
O
Common signal pins for LCD
SEG1–SEG52 38–89
40–91
O
Segment signal pins for LCD
7