cx74hc138 has three enable control terminals 1E, 2e, 3e. When 1E, 2e are low level and 3E is high level, eight decode output terminals will have decoded output. If not, all eight decode output terminals will be high. Cx74hc138 is usually applied to 3-8 decoder of single three address data input and eight decoding output, or to 4-16 decoder of four address data input and 16 decoding output with two cx74hc138 according to the characteristics of the enable signal.
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[ CX74HC138 ]"
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产品概述 返回TOP
CX74HC138是一款高速CMOS器件，引脚兼容低功耗肖特基TTL（LSTTL）系列。 CX74HC138有三个地址数据输入端（A0、A1、A2）和八个有效译码为低的输出端（Y0 —Y7 ）；CX74HC138有三个使能控制端1E、2E、3E），当1E、2E为低电平且3E为高电平时，八个译码输出端才有译码输出，否则八个译码输出端将全为高。CX74HC138通常应用于单个三地址数据输入八译码输出的3-8译码器，也可根据使能信号特点用两个CX74HC138实现四地址数据输入和16译码输出的4-16译码器，应用中未使用的使能端要处在译码有效
输出使能电平状态。
产品特点 返回TOP
采用CMOS工艺
低功耗
工作电压：3.0V—5.0V
封装形式：SOP16
应用范围 返回TOP
适用于数字电路中的3—8译码功能
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| 显示控制驱动系列 | ||||||
| IC Name | Description | Supply oltage | Transmission Delay | Transmission | ESD(HBM) | Package |
| CXLE8891 | Octal bus transceiver; 3-tate | 3.0V~5.5V | <12ns | <2ns | 8KV |
SOP20 SOP20-2 TSSOP20 DIP20 QFN20 |
| CXLE8892C |
Dual P-Channel nhancement Mode Mosfet |
- | - | - | - | SOP8 |
| CXLE8892D |
Dual P-Channel nhancement Mode Mosfet(BVDS=20V) |
- | - | - | - | SOP8 |
| CXLE8892K |
Dual P-Channel nhancement Mode Mosfet(BVDS=20V) |
- | - | - | - | SOP8 |
| CXLE8891B | Octal bus transceiver; 3-state | 3.0V~5.5V | <12ns | <2ns | 8KV |
SOP20 SOP20-2 TSSOP20 DIP20 |
| CXLE8893B | 8-channel multiplexer | 3.0V~5.5V | - | - | 8KV | TSSOP16 |
| CXLE8894B | Dual 4-channel ultiplexer | 3.0V~5.5V | - | - | 8KV | TSSOP16 |
| CXLE8895 | LED display screen driver | 3.0V~5.5V | - | - | 8KV | TSSOP20 |
| CXLE8896 |
3-to-8 Line Decoder & 8 P-channel enhancement mode mosfet |
3.03V~5.5V | - | - | 4KV | SOP16 |
| CX74HC04 | Hex invertors | 3.0V~5.5V | <10ns | <2ns | 8KV | SOP14 |
| SX74HC123 |
Dual retriggerable monostable multivibrator |
3.0V~5.5V | - | - | 8KV | SOP16 |
| CX74HC138 | 3-to-8 Line Decoder | 3.0V~5.5V | - | - | 8KV | SOP16 QFN16 |
