AL128 View Datasheet(PDF) - Unspecified
Part Name
Description
Manufacturer
AL128 Datasheet PDF : 45 Pages
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AL128
MWENL
out (CMOS)
78
Memory Low Byte Write Enable
MWRST
out (CMOS)
71
Memory Write Reset
PAL
in (CMOSd)
2
NTSC/PAL select
0 - NTSC
1 - PAL
RED<7:0>
in (CMOSd)
100-107
Graphic Red input data
RGBOUT
in (CMOSd)
1
RGB/YC Composite output select
0 - ACMP, AY, AC
1 - R, G, B
RSET
SCL
SDA
in
42
in (CMOSsu)
13
in/out (CMOSsu) 10
DAC Full scale current adjust, 82 ohm pull-
down for S-video and Composite output, 140
ohm pull-down for RGB output.
I2C Clock
I2C Data
SELECT
in (CMOSsd)
5
Select button
TEST1~12
out (CMOS)
9, 15-18, 20- Unused pins for factory test purpose only
23, 25,26,33
TVCSYNC
out (CMOS)
32
TV composite sync
TVHSYNC
out (CMOS)
30
TV horizontal sync
TVVSYNC
out (CMOS)
31
TV vertical sync
TVCLK
out (CMOS)
151
Clock output for graphic chip clock
VRB
in (0 V)
135
ADC Bottom Voltage Reference
VREF
in (1.23 V)
35
DAC Voltage Reference Input
VRT
in
134
ADC Top Voltage Reference
XIN1/FIN1
in (CMOS)
159
Crystal Input/External Clock Input 1 for
NTSC
XIN2/FIN2
in (CMOS)
154
Crystal Input/External Clock Input 2 for PAL
XOUT1
out (CMOS)
158
Crystal Output 1 for NTSC
XOUT2
out (CMOS)
153
Crystal Output 2 for PAL
Power and Ground
VDD x 13
5V
8, 24, 46, 61,
70, 79, 89, 99,
113, 123, 139,
144, 150
Digital power
April 2, 1999
8
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