S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X PRODUCT OVERVIEW
1-7
Table 1-1. S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X Pin Descriptions (Continued) Pin Names Pin Type Pin Description CircuitType Pin No. Shared Functions
VLC0−VLC2 − LCD power supply pins. − 6−8 −
INT0−INT2
INT3−INT7 I/O External interrupts input pins. E-4 18−20
29−33 P0.0−P0.2
P1.3−P1.7
T1CLK I/O Timer 1/A external clock input. E-4 21 P0.3
TAOUT I/O Timer 1/A clock output. E-4 22 P0.4
TBOUT I/O Timer B clock output. E-4 23 P0.5
CLKOUT I/O System clock output. E-4 24 P0.6
BUZ I/O Output pin for buzzer signal. E-4 25 P0.7
SCK, SO, SI I/O Serial clock, data output, and data input. E-4 26,27,28 P1.0, P1.1, P1.2
COM0–COM3 I/O LCD common signal outputs. H-9 2−5 P6.0−P6.3
SEG0–SEG15
SEG16–SEG30
SEG31
I/O LCD segment signal outputs. H-9
H-8
H-10
1,64− 50
49−35
34
P5.7−P4.0
P3.7−P2.1
P2.0/VBLDREF
VBLDREF I/O Battery level detector reference voltage H-10 34 P2.0/SEG31
VREG O Regulator voltage output for sub clock
(needed 0.1uF) − 17 −
nRESET I System reset pin B 16 −
XTIN, XTOUT − Sub oscillator pins − 14, 15 −
XIN, XOUT − Main oscillator pins. − 12, 11 −
TEST I
Test input: it must be connected to VSS ��� 13 −
VDD, VSS − Power input pins − 9, 10 −