BT474中文資料ETC數(shù)據(jù)手冊PDF規(guī)格書
BT474規(guī)格書詳情
Product Description
The Bt471, 476, and 478 are pin-compatible
and software-compatible RAMDACs de-
signed specifically for Personal System/2?-
compatible color graphics. The Bt476 is
also available in a 28-pin DIP package that
is pin compatible with the IMS? G176.
‘The Bt471 has a 256 x 18 color lookup ta-
ble with triple 6-bit video D/A converters.
The Bt478 has a 256 x 24 color lookup table
with triple 8-bit video D/A converters. It
may be configured for either 6-bit or 8-bit
D/A converter operation. The Bt476 is simi-
lar to the Bt471 but has no overlays, no pro-
grammable setup, and no sync information
on the analog outputs.
Additional features on the Bt471 and
Bt478 include 15 overlay registers that pro-
vide, for example, overlaying cursors, grids,
‘menus, and EGA emulation. Also supported
is sync generation on all three channels, a
programmable pedestal (0 or 7.5 IRE), and
use of either an external voltage or current
reference.
‘The Bt471/476/478 generates RS-343A-
compatible video signals into a doubly-
terminated 75 Q load.
Note: Personal System/2? and PS/2? are
registered trademarks of IBM. IMS? is a
registered trademark of Inmos Limited.
Distinguishing Features
+ Personal System/2? Compatibility
+ 80,66, 50, 35 MHz Operation
Triple 6-bit or 8-bit D/A Converters
+ 256-Word Color Palette RAM
+ RS-343A-Compatible Outputs
* 15 Overlay Registers (Bt471/478)
+ Sync on All Three Channels
(Bt471/478)
+ Programmable Pedestal (Bt471/478)
+ External Voltage or Current
Reference
+ Standard MPU Interface
+ +5 V CMOS Monolithic
Construction
?+ 44-pin PLCC or 28-pin DIP Package
Applications
+ High-Resolution Color
Graphics
+ CAE/CAD/CAM
+ Image Processing
+ Instrumentation
+ Desktop Publishing
產(chǎn)品屬性
- 型號:
BT474
- 制造商:
BT
- 功能描述:
Digital Analog Converter, Triple, 8 Bit, 84 Pin, PLCC
供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
---|---|---|---|---|---|---|---|
BT |
9219+ |
PLCC84 |
217 |
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價 | ||
BT |
2020+ |
PLCC84 |
80000 |
只做自己庫存,全新原裝進(jìn)口正品假一賠百,可開13%增 |
詢價 | ||
ST |
2023+ |
DIP8 |
50000 |
原裝現(xiàn)貨 |
詢價 | ||
原廠 |
NA |
8650 |
一級代理 原裝正品假一罰十價格優(yōu)勢長期供貨 |
詢價 | |||
BT |
21+ |
PLCC84 |
257 |
原裝現(xiàn)貨假一賠十 |
詢價 | ||
BT |
23+ |
PLCC-32 |
17523 |
詢價 | |||
BT |
23+ |
PLCC84 |
8890 |
價格優(yōu)勢、原裝現(xiàn)貨、客戶至上。歡迎廣大客戶來電查詢 |
詢價 | ||
BT |
24+ |
PGA |
2978 |
100%全新原裝公司現(xiàn)貨供應(yīng)!隨時可發(fā)貨 |
詢價 | ||
BT |
24+ |
PLCC84 |
16800 |
絕對原裝進(jìn)口現(xiàn)貨,假一賠十,價格優(yōu)勢!? |
詢價 | ||
BT |
24+ |
PLCC |
120 |
詢價 |