LC82221L Datasheet PDF - Sanyo Semicon Device

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LC82221L
Sanyo Semicon Device

Part Number LC82221L
Description Motion JPEG Decoder
Page 7 Pages


LC82221L datasheet pdf
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Ordering number : EN *5846
CMOS IC
LC82221L
Motion JPEG Decoder
Preliminary
Overview
The LC82221L is a full-color digital image data expansion
IC that accepts data in formats that essentially conform to
the JPEG standard. With the provision of frame memory,
this IC can input and output image data in standard video
formats. In addition, it also supports a wide range of
image display functions using that frame memory. As
compared to earlier JPEG ICs, this IC features simplified
JPEG functionality and a greater emphasis on display
functions. Thus it supports the creation of excellent cost-
performance ratio systems for applications that require a
display system.
Features
• High image quality image expansion using the JPEG
system
• Superlative cost performance achieved by only
providing decoding functions.
• Two built-in quantization tables.
• High-speed processing achieved by using fixed Huffman
tables. Application do not have to set up these tables.
• Two Huffman tables, one for luminance data and one for
chrominance data, are provided.
• Supports scaling factor parameters that allow the
quantization factor to be changed.
• DRAM for code data buffering and image data playback
can be connected directly.
• Applications can use either 2Mb or 4Mb DRAMs based
on the sizes of the image handled and the structure of the
system. However, 16-bit data path DRAMs must be
used.
• Image data is output in synchronization with an image
display synchronizing signal.
• Color structure of the code data is Y:U:V=4:1:1.
• Dedicated code data input bus provided to avoid loading
the host bus. DMA transfers are also supported.
• Users can select either RGB or YUV for image data
output.
• Built-in YUV to RGB color conversion circuit
• The LC82221L supports image sizes up to 1024 pixels
in the horizontal direction. The range of vertical sizes
handled can be set up arbitrarily, since it is limited by
the size of the DRAM provided.
• 3.3-V single-voltage power supply. Low power.
• The display position and display size can be set.
• SOI and EOI marker support
• Horizontal and vertical scrolling display functions
• Support for overwrite display, in which the next data for
expansion is displayed by overwriting the previously
expanded image data
Package Dimensions
unit: mm
3214-SQFP144
[LC82221L]
SANYO: SQFP144
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
62698RM (OT) No. 5846-1/7



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Block Diagram
LC82221L
No. 5846-2/7



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LC82221L
Specifications
Electrical Characteristics
Absolute Maximum Ratings at VSS = 0 V
Parameter
Maximum supply voltage
Input and output voltage
Input and output current
Operating temperature
Storage temperature
Symbol
VDD
VI, VO
II, IO
Topr
Tstg
Allowable Operating Ranges at Ta = –30 to +70°C
Conditions
Parameter
Supply voltage
Input voltage
Symbol
VDD
VIN
Conditions
Ratings
–0.3 to +4.6
–0.3 to VDD+0.3
–20 to +20
–30 to +70
–55 to +125
Unit
V
V
mA
°C
°C
min
3.0
0
Ratings
typ
3.3
max
3.6
VDD
Unit
V
V
DC Characteristics at Ta = –30 to +70°C, VDD = 3.0 to 3.6 V, VSS = 0 V
Parameter
Symbol
Conditions
Ratings
Unit
min typ max
Input high-level voltage
Input low-level voltage
Input high-level voltage
Input low-level voltage
Input high-level current
Input low-level current
Output high-level voltage
VIH1
VIL1
VIH2
VIL2
IIH
IIL1
IIL2
VOH
CMOS level inputs: (1)
0.7 VDD
CMOS level Schmitt inputs: (2)
0.75 VDD
VIN = VDD; All input pins (including bus pins)
VIN = VSS : (3)
VIN = VDD; Pins with pull-up resistors: (4)
IOH = –6 mA; All output pins
(including bus pins)
–10
–10
–100
VDD – 0.8
0.2 VDD
0.15 VDD
+10
+10
–10
V
V
V
V
µA
µA
µA
V
Output low-level voltage
VOL
IOL = 6 mA; All output pins
(including bus pins)
0.4 V
Output leakage current
Pull-up resistance
IOZ When set to high-impedance output: (5)
RUP (6)
–10 +10 µA
70 140 280 k
Applicable Pins
(1) CTLCPU, CTLA, CTLD, CLKSEL, CLK, CDD, TEST, MD, DG, DB, DR, ZPXEN, ZHSYNC, ZVSYNC, PXCLK
(2) ZCTLCS, ZCTLRD, ZCTLWR, ZRESET, ZCDCS, ZCDWR
(3) CTLCPU, CTLA, CTLD, CLKSEL, CLK, CDD, TEST, DG, DB, DR, ZPXEN, ZHSYNC, ZVSYNC, PXCLK, ZCTLCS, ZCTLRD, ZCTLWR, ZRESET,
ZCDCS, ZCDWR
(4) MD
(5) ZCTLRDY, CTLD, ZCDRDY, MD, DG, DB, DR
(6) MD
No. 5846-3/7



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LC82221L
Pin Functions
Pin Number
Pin Name
Type
Description
1 VSS
Ground
2
ZCTLINT
O Control bus interrupt request
3
ZCTLCS
I Control bus select
4
ZCTLRD/RW
I Control bus read or R/W select
5
ZCTLWR/DS
I Control bus write/data strobe
6
ZCTLRDY
O Control bus ready (tri-state output)
7
CTLCPU
I Control bus CPU type selection
8 VDD
+3.3-V power supply
9 VSS
Ground
10 NC
11 NC
12
CTLA5
I
13
CTLA4
I
14
CTLA3
I
Control bus address
15
CTLA2
I
16
CTLA1
I
17
CTLA0
I
18 VDD
+3.3-V power supply
19 VSS
Ground
20
CTLD7
I/O
21
CTLD6
I/O
22
CTLD5
I/O
23
CTLD4
I/O
Control bus data
24
CTLD3
I/O
25
CTLD2
I/O
26
CTLD1
I/O
27
CTLD0
I/O
28 VDD
+3.3-V power supply
29 VSS
Ground
30
CLKSEL0
I Clock divisor setting
31
CLKSEL1
I CLKSEL1:0 = 00: No divisor, 01: Divisor = 2, 10: Divisor = 3.
32
CLK
I System (decode) clock input
33 NC
34
ZRESET
I Hardware reset
35 NC
36 VSS
Ground
37 VDD
+3.3-V power supply
38
ZCDCS/ZCDACK
I Code bus select/code bus DMA acknowledge
39 ZCDINT/ZCDREQ O Code bus interrupt/code bus DMA request
40
ZCDWR
I Code bus data write signal
41
ZCDRDY
O Code bus ready (tri-state output)
42
CDD15
I
43
CDD14
I Code bus data
44
CDD13
I (CDD8 to CDD15 are unused in 8-bit mode.*)
45
CDD12
I
Note: * These pins must be pulled up with a resistance of about 10 k.
Continued on next page.
No. 5846-4/7



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