BT477中文资料PDF规格书
BT477规格书详情
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
产品属性
- 型号:
BT477
- 制造商:
BT
- 功能描述:
Digital Analog Converter, Triple, 8 Bit, 44 Pin, PLCC
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
BT |
2016+ |
PLCC44 |
6523 |
只做进口原装现货!假一赔十! |
询价 | ||
原厂 |
NA |
8650 |
一级代理 原装正品假一罚十价格优势长期供货 |
询价 | |||
BT |
9128 |
99 |
原装正品长期供货,如假包赔包换 徐小姐13714450367 |
询价 | |||
BT |
22+ |
PLCC44 |
3600 |
绝对原装!现货热卖! |
询价 | ||
BT |
23+ |
PLCC44 |
2000 |
绝对现货库存 |
询价 | ||
BT |
23+ |
PLCC44 |
5000 |
原装现货,优势热卖 |
询价 | ||
BT |
6000 |
面议 |
19 |
PLCC-44 |
询价 | ||
BT |
2220+ |
PLCC |
3269 |
一级代理/分销渠道价格优势 十年芯程一路只做原装正品 |
询价 | ||
BT |
2022 |
PLCC44 |
80000 |
原装现货,OEM渠道,欢迎咨询 |
询价 | ||
BT |
PLCC |
95 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 |