參數(shù)資料
型號: IBM025171
廠商: IBM Microeletronics
英文描述: 4Mb(256K X 16) MULTIPORT VIDEO RAM(4M位(256K X 16)多端口視頻RAM)
中文描述: 4Mb的(256 × 16)多端口視頻內(nèi)存(4分位(256 × 16)多端口視頻內(nèi)存)
文件頁數(shù): 9/65頁
文件大?。?/td> 841K
代理商: IBM025171
IBM025160
IBM025161
IBM025170
IBM025171
256K X 16 MULTIPORT VIDEO RAM
33G0307
SA14-4751-05
Revised 3/98
IBM Corporation, 1995. All rights reserved.
Use is further subject to the provisions at the end of this document.
Page 9 of 65
Output Drivers
Driver
Impedance
Output Voltage, Low (Max)
Output Voltage, High (Min)
Serial Port
60
±
15
I
OUT
=2.0 mA, V=0.4
I
OUT
=-1 mA, V=2.4
Parallel Port
45
±
15
I
OUT
=2.0 mA, V=0.4
I
OUT
=-1 mA, V=2.4
AC Measurement Conditions
Port
Detect
Load
Parallel Port Output Detect Level
2.0V / 0.8V
Serial Port Output Detect Level
2.0V / 0.8V
Parallel Port Output Load
1 TTL + 50 PF
Serial Port Output Load
1 TTL + 30 PF
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