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S3C8245/P8245/C8249/P8249 PRODUCT OVERVIEW
1-7
Table 1-1. S3C8245/C8249 Pin Descriptions (Continued)
Pin
Names
Pin
Type
Pin
Description
Circuit
Type
Pin
Numbers
(note)
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Pins
ADC0–ADC6
ADC7
I A/D converter analog input channels F–10
F–18
36–42
43
P2.0–P2.6
P2.7
AV
REF
– A/D converter reference voltage – 44 –
AV
SS
– A/D converter ground – 45 –
INT0–INT7 I External interrupt input pins D–4 20–27 P0.0–P0.7
nRESET I System reset pin
(pull-up resistor: 250 kΩ)
B 19 –
TEST I 0 V: Normal MCU operating
5 V: Test mode
12 V: for OTP writing
– 16 –
SDAT, SCLK O Serial OTP interface pins; serial data
and clock
D–2 10, 11 P3.3, P3.4
V
DD,
V
SS
– Power input pins for CPU operation
(internal) and Power input for OTP
Writing
– 12, 13 –
X
OUT,
X
IN
– Main oscillator pins – 14, 15 –
SO, SCK, SI I/O Serial I/O interface clock signal E–2 33–35 P1.5–P1.7
V
VLDREF
I Voltage detector reference voltage input F–18 43 P2.7
TACAP I Timer A Capture input D–2 10 P3.3
TACLK I Timer A External clock input D–2 9 P3.2
TAOUT/TAPWM O Timer A output and PWM output D–2 8 P3.1
TBPWM O Timer B PWM output D–2 7 P3.0
T1CAP I Timer 1 Capture input E–2 28 P1.0
T1CLK I Timer 1 External clock input E–2 29 P1.1
T1OUT/T1PWM O Timer 1 output and PWM output E–2 30 P1.2
COM0–COM3 O LCD common signal output H 51–54 –
SEG0–SEG15 O LCD segment output H 55–70 –
SEG16–SEG23 O LCD segment output H–14 71–78 P4.0–P4.7
SEG24–SEG31 O LCD Segment output H–14 79–6 P5.0–P5.7
V
LC0
–V
LC2
O LCD power supply – 48–50 –
BUZ O 0.5, 1, 2 or 4 kHz frequency output for
buzzer sound with 4.19 MHz main
system clock or 32768 Hz subsystem
clock
E–2 32 P1.4
CA, CB – Capacitor terminal for voltage booster – 46–47 –