adv473 Analog Devices, Inc., adv473 Datasheet - Page 4

• Manufacturer Part Number: adv473
• Description: Cmos 135 Mhz True-color Graphics Triple 8-bit Video Ram-dac
• Manufacturer: Analog Devices, Inc.

ADV473
RECOMMENDED OPERATING CONDITIONS
Parameter
Power Supply
Ambient Operating Temperature
Output Load
Reference Voltage
ABSOLUTE MAXIMUM RATINGS
V
Voltage on Any Digital Pin . . . . GND – 0.5 V to V
Ambient Operating Temperature (T
Storage Temperature (T
Junction Temperature (T
Lead Temperature (Soldering, 10 secs) . . . . . . . . . . . +300 C
Vapor Phase Soldering (2 minutes) . . . . . . . . . . . . . . +220 C
IOR, IOG, IOB to GND
NOTES
1
2
Model
ADV473KP135 135 MHz 0 C to +70 C
ADV473KP110 110 MHz 0 C to +70 C
ADV473KP80
ADV473KP66
NOTE
*
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the ADV473 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
(Continued from page 1)
The device consists of three, high speed, 8-bit, video D/A con-
verters (RGB), a 256
look-up table or a linearization RAM, a 24-bit wide parallel
pixel input port and three 15
controlled through the MPU port by the various on-board con-
trol/command registers.
The individual red, green and blue pixel input ports allow true-
color, image rendition. True-color image rendition, at speeds of
up to 135 MHz, is achieved through the 24-bit pixel input port.
The ADV473 is also capable of implementing 8-bit true color,
8-bit pseudo color and 15-bit true color.
Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those listed in the
operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Analog output short circuit to any power supply or common can be of an indefinite
duration.
All devices are packaged in a 68-pin plastic leaded (J-lead) chip carrier.
AA
to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Speed
80 MHz
66 MHz
ORDERING GUIDE
24 RAM which can be configured as a
S
2
) . . . . . . . . . . . . . . –65 C to +150 C
J
) . . . . . . . . . . . . . . . . . . . . +150 C
. . . . . . . . . . . . . GND–0.5 V to V
Temperature No. of Package
0 C to +70 C
0 C to +70 C
Range
8 overlay registers. The part is
A
) . . . . . –55 C to +125 C
1
Symbol
V
T
R
V
AA
A
L
REF
68
68
Pins
68
68
AA
Option*
P-68A
P-68A
P-68A
P-68A
+ 0.5 V
AA
Min
4.75
0
1.14
–4–
The ADV473 is capable of generating RGB video output sig-
nals, without requiring external buffering, and which are com-
patible with RS-343A and RS-170 video standards. All digital
inputs and outputs are TTL compatible.
The part can be driven by the on-board voltage reference or an
external voltage reference.
The part is packaged in a 68-pin Plastic Leaded Chip Carrier
(PLCC).
OL0
OL2
OL3
RS2
OL1
RS0
RS1
WR
RD
D4
D5
D7
D0
D2
D3
D6
D1
10
12
13
14
17
19
11
15
16
18
20
22
23
24
25
26
21
27 28
9
8
Typ
5.00
37.5
1.235
29
7
30 31 32
6
PIN CONFIGURATION
5
4
33
3
68-Pin PLCC
(Not To Scale)
ADV473
TOP VIEW
34 35
2
1
Max
5.25
+70
1.26
68 67
36
WARNING!
37 38 39
66
65 64
40
ESD SENSITIVE DEVICE
63 62
41 42 43
61
Units
Volts
Volts
C
60
59
58
57
56
55
54
53
52
50
49
48
47
45
44
51
46
REV. A
G7
G6
G5
G4
G3
G2
G1
G0
R7
R6
R5
R4
R3
R2
R1
R0
V
REFOUT