參數(shù)資料
型號: AL422B
廠商: AverLogic Technologies, Inc.
英文描述: 3M-Bit Frame Buffer
中文描述: 3M公司位幀緩沖
文件頁數(shù): 1/2頁
文件大小: 39K
代理商: AL422B
AL422B
3M-Bit Frame Buffer
Applications
Multimedia systems
Video capture systems
Video editing systems
Scan rate converters
TV’s picture in picture feature
Anti-skip CD players
Description
The AL422B is a First-In-First-Output
(FIFO) video frame memory used to buffer
audio/video/graphic
processing, timing correction, or format
conversion. It is manufactured with state-of-
the-art embedded memory technology for
applications in TVs, VCRs, scan converters,
and digital video systems.
data
for
digital
Ordering Information
Part number
Package
Power supply
AL422B
28-pin plastic SOP
+3.3 volt
Features
384K (393,216) x 8 bits FIFO organization
Supports VGA and CCIR resolutions
Independent read/write operations (different
I/O data rates acceptable)
High speed independent 8-bit data I/O port
operations
Maximum operating speed grade: 50Mhz
Access time: 15 ns
Output enable control (data skipping)
3.3V power supply with 5V signal input
tolerant
Standard 28-pin SOP package
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
DI0
DI1
DI2
DI3
/WE
GND TST /WRST WCK VDD
DI4
DI5
DI6
DI7
DO0 DO1 DO2 DO3
/RE
GND /OE /RRST RCK DEC DO4 DO5 DO6 DO7
AL422B
AL422-04 422B pinout diagram
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