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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(hào):
BT473
- 制造商:
BT
- 功能描述:
Digital Analog Converter, Triple, 8 Bit, 68 Pin, PLCC
供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
---|---|---|---|---|---|---|---|
BT |
23+ |
DIP |
20000 |
原廠原裝正品現(xiàn)貨 |
詢(xún)價(jià) | ||
BT |
23+ |
PLCC |
9365 |
價(jià)格優(yōu)勢(shì)、原裝現(xiàn)貨、客戶(hù)至上。歡迎廣大客戶(hù)來(lái)電查詢(xún) |
詢(xún)價(jià) | ||
BT |
22+ |
ZIP15 |
3000 |
進(jìn)口原裝 假一罰十 現(xiàn)貨 |
詢(xún)價(jià) | ||
原廠 |
NA |
8650 |
一級(jí)代理 原裝正品假一罰十價(jià)格優(yōu)勢(shì)長(zhǎng)期供貨 |
詢(xún)價(jià) | |||
CONEXANT |
23+ |
NA |
1260 |
專(zhuān)做原裝正品,假一罰百! |
詢(xún)價(jià) | ||
BT |
23+ |
NA/ |
3339 |
原裝現(xiàn)貨,當(dāng)天可交貨,原型號(hào)開(kāi)票 |
詢(xún)價(jià) | ||
Bt |
23+ |
PLCC44 |
7000 |
絕對(duì)全新原裝!100%保質(zhì)量特價(jià)!請(qǐng)放心訂購(gòu)! |
詢(xún)價(jià) | ||
BT |
22+ |
PLCC |
8500 |
只做原裝正品假一賠十!正規(guī)渠道訂貨! |
詢(xún)價(jià) | ||
BT |
2224+ |
PLCC68 |
4911 |
一級(jí)代理/分銷(xiāo)渠道價(jià)格優(yōu)勢(shì) 十年芯程一路只做原裝正品 |
詢(xún)價(jià) | ||
BT |
23+ |
PLCC |
3200 |
全新原裝、誠(chéng)信經(jīng)營(yíng)、公司現(xiàn)貨銷(xiāo)售 |
詢(xún)價(jià) |