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LC7874E の電気的特性と機能
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LC7874EのメーカーはSanyo Semicon Deviceです、この部品の機能は「CD Graphics Decorder」です。 |
製品の詳細 ( Datasheet PDF )
| 部品番号 | LC7874E |
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| 部品説明 | CD Graphics Decorder | ||
| メーカ | Sanyo Semicon Device | ||
| ロゴ |  |
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このページの下部にプレビューとLC7874Eダウンロード（pdfファイル）リンクがあります。 Total 22 pages
Ordering number : EN5521
CMOS LSI
LC7874E
CD Graphics Decorder
Overview
The LC7874E is a CMOS LSI that provides the signal
processing needed for compact disc graphics (CD-G) on a
single chip. The LC7874E accepts subcode R to W
signals output from a CD player DSP LC786X Series,
LC7862XE Series, or LC7863XE Series device, and
performs de-interleaving, error detection and correction,
graphic instruction processing, and image processing.
Features
• A CD-G decoder can be configured using a three-chip
combination of this LSI—the LC7874E—with external
RAM (64K × 4 bits) and an LC78010E digital RGB
encoder.
• Performs insertion and protection of CD subcode R to
W sync signals and detection of R to W signal de-
interleave error signals.
• Has two crystal oscillators, for NTSC and PAL, with
simple switchover by means of a control pin.
Connecting a crystal resonator of 14.31818 MHz for
NTSC and 17.734476 MHz for PAL enables the
standard clock and other necessary timings to be
generated internally.
• Performs CD graphics instruction processing and
drawing functions, and controls image display.
• Has microcomputer interface functions, allowing set
upgrading.
• Provides superimposition support.
• Has a color bar signal output function.
• DRAM interface and RGB output and sync signal output
are 3-state outputs.
Package Dimensions
unit: mm
3159-QFP64E
[LC7874E]
SANYO: QIP64E
• CCB is a trademark of SANYO ELECTRIC CO., LTD.
• CCB is SANYO’s original bus format and all the bus
addresses are controlled by SANYO.
Specifications
Electrical Characteristics at Ta = –30°C to +85°C
Parameter
Power supply voltage
Input voltage
Output voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VDD
VIN
VOUT
Pd max
Topr
Tstg
Conditions
Ratings
VDD
S1, S2, SFSY, PW, SBSY, CE, DI, CL, MUTE, DB0 to 3,
VSS – 0.3 to VSS + 7.0
CB, CE1, CE2, CE3, LINE, HRESET, VRESET, INIT,
RESET, N/P, SON, XIN1, XIN2
VSS – 0.3 to VDD + 0.3
SBCK, DO, CDGM, WE, RAS, A0 to 7, DB0 to 3, CAS, OE,
ROUT0 to 3, GOUT0 to 3, BOUT0 to 3, HSYNC, CSYNC,
BLANK, YS, 4FSCO, EFLG, FSCO, XOUT1, XOUT2
VSS – 0.3 to VDD +0 .3
Ta = 25°C
500
–30 to +85
–40 to +125
Unit
V
V
V
mW
°C
°C
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
13097HA(OT) No. 5521-1/22
1 Page  
LC7874E
Timing Characteristics (Microcontroller Interface Timing) at Ta = 25°C, VDD = 5 V
Parameter
Input minimum pulse width
Data setup time
Data hold time
Data hold time
CE wait time
CE setup time
CE hold time
Symbol
Conditions
tWH
tWL
tDS
tDH
tDOH
tCP
tCS
tCH
CL, high pulse width
CL, low pulse width
DI, CL
DI, CL
DO, CL
CE, CL
CE, CL
CE, CL
min
400
400
200
200
130
400
400
400
Ratings
typ
max
300
Unit
ns
ns
ns
ns
ns
ns
ns
ns
No. 5521-3/22
3Pages 
DRAM Early Write Cycle
LC7874E
No. 5521-6/22
6 Page | |||
| ページ | 合計 : 22 ページ | ||
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PDF ダウンロード | [ LC7874E データシート.PDF ] | |
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データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
共有リンク
Link :| 部品番号 | 部品説明 | メーカ |
| LC7874E | CD Graphics Decorder | Sanyo Semicon Device |