产品应用与封装尺寸
图纸取自原厂规格书，点击可放大查看原始尺寸标注。
引脚定义与内部结构
| 引脚 | 符号 | 名称 |
|---|---|---|
| 11 | B8 | |
| 12 | B7 | |
| 13 | B6 | |
| 14 | B5 | |
| 15 | LSTTL | |
| 16 | B3 | |
| 17 | B2 | |
| 18 | B1 | |
| 19 | OE | |
| 20 | V |
数据来源：原厂规格书引脚图
关键参数速览
- 电源电压 VCC
- ±1000 nA
- 工作温度 TA
- SN74HC245
电气特性 Electrical Characteristics（TA = 25°C）
| 最小 | 典型 | 最大 | 最小2 | 最大2 | 最小3 | 最大3 |
|---|---|---|---|---|---|---|
| TA | = 25°C | SN54HC245 | SN74HC245 | |||
| 2 V 1.9 | 1.998 | 1.9 | 1.9 | |||
| IIOOHH == ––2200 µAA 4.5 V 4.4 | 4.499 | 4.4 | 4.4 | |||
| VVVOOHH VVVII === VVVIIHH ooorrr VVVIILL 6 V 5.9 | 5.999 | 5.9 | 5.9 | VVV | ||
| IOH = –6 mA 4.5 V 3.98 | 4.3 | 3.7 | 3.84 | |||
| IOH = –7.8 mA 6 V 5.48 | 5.8 | 5.2 | 5.34 | |||
| 2 V | 0.002 | 0.1 | 0.1 | 0.1 | ||
| IIOOLL == 2200 µAA 4.5 V | 0.001 | 0.1 | 0.1 | 0.1 | ||
| VVVOOLL VVVII === VVVIIHH ooorrr VVVIILL 6 V | 0.001 | 0.1 | 0.1 | 0.1 VVV | ||
| IOL = 6 mA 4.5 V | 0.17 | 0.26 | 0.4 | 0.33 | ||
| IOL = 7.8 mA 6 V | 0.15 | 0.26 | 0.4 | 0.33 | ||
| II DIR or OE VI = VCC or 0 6 V | ±0.1 | ±100 | ±1000 | ±1000 nA | ||
| IOZ A or B VO = VCC or 0 6 V | ±0.01 | ±0.5 | ±10 | ±5 µA | ||
| ICC VI = VCC or 0, IO = 0 6 V | 8 | 160 | 80 µA | |||
| Ci DIR or OE 2 V to 6 V | 3 | 10 | 10 | 10 pF | ||
| POST OFFICE BOX 655303 DALLAS, | TEXAS 75265 | 3 |