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參數(shù)資料
| 型號： | HT23C040 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | CMOS 512K x 8-Bit Mask ROM(CMOS 512K x 8位掩模式ROM) |
| 中文描述： | 的CMOS為512k × 8位掩模ROM（的CMOS為512k × 8位掩模式光盤） |
| 文件頁數(shù)： | 6/10頁 |
| 文件大小： | 140K |
| 代理商： | HT23C040 |
A.C. test condition
Output load: see figure right
Input rise and fall time: 10ns
Input pulse levels: 0.4V to 2.4V
Input and output timing reference levels:
0.8V and 2.0V (V
CC
=5V)
1.5V (V
CC
=3V)
Timing Diagrams
Propagation delay due to address (CE/CE/OE1/OE1 and OE/OE are active)
Propagation delay due to chip and output enable (address valid)
HT23C040
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January 20, 2000
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Output load circuit
Functional Description
The HT23C040 has two modes, namely data
read mode and standby mode, controlled by
CE/CE/OE1/OE1 and OE/OE/NC inputs.
Standby mode
TheHT23C040haslowercurrentconsumption,
controlled by the chip enable input (CE/CE).
When a low/high level is applied to the CE/CE
input regardless of the output enable
(OE/OE/NC) states, the chip will enter the
standby mode.
Data read mode
When both the chip enable (CE/CE/OE1/OE1)
andtheoutputenable(OE/OE/NC)areactive,
the chip is in data read mode. Otherwise, ac-
tive CE/CE and inactive OE/OE/NC result in
deselect mode. The output will remain in Hi-Z
state.
相關PDF資料 |
PDF描述 |
|---|---|
| HT23C128 | CMOS 16Kx 8-Bit Mask ROM |
| HT23C256 | CMOS 32Kx 8-Bit Mask ROM |
| HT23C512 | CMOS 64Kx 8-Bit Mask ROM |
| HT24LC01 | 1K/2K 2-Wire CMOS Serial EEPROM |
| HT24LC02 | 2K-Bit 2-Wire Serial Interface CMOS Serial EEPROM(2K位、2線接口、 CMOS串行EEPROM) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HT23C040H | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS 512K?8-Bit High Speed Mask ROM |
| HT23C128 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CMOS 16Kx 8-Bit Mask ROM |
| HT23C256 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CMOS 32Kx 8-Bit Mask ROM |
| HT23C256-28DIP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 ROM (Mask Programmable) |
| HT23C256-28SOP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 ROM (Mask Programmable) |
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