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參數(shù)資料
| 型號(hào)： | HF88M08 |
| 廠商： | King Billion Electronics Co., Ltd. |
| 英文描述： | 512K x 8 bit Mask ROM |
| 中文描述： | 為512k × 8位掩模ROM |
| 文件頁數(shù)： | 10/19頁 |
| 文件大?。?/td> | 320K |
| 代理商： | HF88M08 |
King Billion Electronics Co., Ltd
駿 億 電 子 股 份 有 限 公 司
HF88M08
registers avoids the necessity of using the RAM as mirror to keep the current status of latches in
applications. However, extra care should be taken when reading P0 and P1. To read the contents of P0
and P1, the DIR0 and DIR1 should be set to output mode. Otherwise, the pin status instead of P0 and P1
will be read. The same precaution should be applied in Read-Modify-Write sequence that read back the
contents of the output latch of output mode pins and input status of input mode pins.
January 16, 2004
This specification is subject to change without notice. Please contact sales person for the latest version before use.
Page 10 of 19
V1.11
7
Timing Diagrams
Symbol
T
CE
T
WEL
T
WEH
T
DHeld
T
OLZ
T
ACE
T
OEL
T
OEH
T
CEHeld
Chip selection signal holding time
T
ACER
Register data available time
T
ORL
Output enable low duty for access register
T
ORH
Output enable low duty for access register
T
RCEL
RS signal setup time
T
RCEH
RS signal hold time
Parameter
Min.
0
100
100
50
200
50
250
150
50
30
100
100
50
50
Typ.
50
-
-
-
-
-
-
-
-
-
-
-
-
-
Max.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Chip selected to active width
WEn active low width
WEn inactive low width
Written data hold time
Read-Write mode transient time
ROM data file available time
Output enable low duty for access ROM
Output enable low duty for access ROM
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HF88M08(S) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| HF88M32(S) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| HF88M32B | 制造商:KB 制造商全稱:KB 功能描述:command interfaced 4M x 8 bit Mask ROM |
| HF88M32B(S) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| HF88S05 | 制造商:KB 制造商全稱:KB 功能描述:command mode SRAM device |
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