- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385397 > HT23C020 (Holtek Semiconductor Inc.) CMOS 256K x 8-Bit Mask ROM(CMOS 256K x 8位掩模式ROM) PDF資料下載
參數(shù)資料
| 型號(hào)： | HT23C020 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | CMOS 256K x 8-Bit Mask ROM(CMOS 256K x 8位掩模式ROM) |
| 中文描述： | 的CMOS 256K × 8位掩模ROM的CMOS（256K × 8位掩模式光盤） |
| 文件頁數(shù)： | 5/8頁 |
| 文件大?。?/td> | 261K |
| 代理商： | HT23C020 |
A.C. test conditions
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 /OE 1/OE 1, CE 1/CE 1/OE 2/OE 2
and OE /OE are active)
Propagation delay due to chip and output enable (address valid)
Functional Description
The HT23C020 has two modes, namely data
read mode and standby mode, controlled by
CE /CE /OE 1/OE 1,CE 1/CE 1/OE 2/OE 2/NC and
OE /OE /NC inputs.
Standby mode
The HT23C020 has lower current consumption,
controlled by the chip enable input (CE/CE and
CE1/CE1). When a low/high level is applied to
the CE/CE or CE1/CE1 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 /OE 1/OE 1,
CE 1/CE 1/OE 2/OE 2/NC) and the output en-
able (OE /OE /NC) are active, the chip is in
data read mode. Otherwise, active CE /CE ,
CE 1/CE 1 and inactive OE /OE /NC result in
deselect mode. The output will remain in Hi-Z
state.
Output load circuit
HT23C020
5
21st Aug ’98
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT23C040 | CMOS 512K x 8-Bit Mask ROM(CMOS 512K x 8位掩模式ROM) |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT23C040 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CMOS 512Kx8-Bit Mask ROM |
| 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) |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。