SN74HCT74 具有清零和预设功能的双路 D 类上升沿触发器
The ’HCT74 devices contain two independent D-type positive-edge-triggered flip-flops. A low level at the preset (PRE)\ or clear (CLR)\ inputs sets or resets the outputs, regardless of the levels of the other inputs. When PRE\ and CLR\ are inactive (high), data at the data (D) input meeting the setup time requirements are transferred to the outputs on the positive-going edge of the clock (CLK) pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of CLK. Following the hold-time interval, data at the D input may be changed without affecting the levels at the outputs.
SN74HCT74 特性
- Operating Voltage Range of 4.5 V to 5.5 V
- Outputs Can Drive Up To 10 LSTTL Loads
- Low Power Consumption, 40-uA Max ICC
- Typical tpd = 17 ns
- ±4-mA Output Drive at 5 V
- Low Input Current of 1 uA Max
- Inputs Are TTL-Voltage Compatible
SN74HCT74 芯片订购指南
| 器件 |
状态 |
温度 |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| SN74HCT74DBLE |
OBSOLETE |
-40 to 85 |
|
SSOP (DB) | 14 |
|
|
| SN74HCT74DBR |
ACTIVE |
-40 to 85 |
0.40 | 1ku |
SSOP (DB) | 14 |
2000 | LARGE T&R |
|
| SN74HCT74DBRG4 |
ACTIVE |
-40 to 85 |
0.40 | 1ku |
SSOP (DB) | 14 |
2000 | LARGE T&R |
|
| SN74HCT74DW |
ACTIVE |
-40 to 85 |
0.43 | 1ku |
SOIC (D) | 14 |
25 | TUBE |
|
| SN74HCT74DWE4 |
ACTIVE |
-40 to 85 |
0.43 | 1ku |
SOIC (D) | 14 |
25 | TUBE |
|
| SN74HCT74DWG4 |
ACTIVE |
-40 to 85 |
0.43 | 1ku |
SOIC (D) | 14 |
25 | TUBE |
|
| SN74HCT74DWR |
ACTIVE |
-40 to 85 |
0.36 | 1ku |
SOIC (D) | 14 |
2000 | LARGE T&R |
|
| SN74HCT74DWRE4 |
ACTIVE |
-40 to 85 |
0.36 | 1ku |
SOIC (D) | 14 |
2000 | LARGE T&R |
|
| SN74HCT74DWRG4 |
ACTIVE |
-40 to 85 |
0.36 | 1ku |
SOIC (D) | 14 |
2000 | LARGE T&R |
|
| SN74HCT74N |
ACTIVE |
-40 to 85 |
0.40 | 1ku |
PDIP (N) | 14 |
20 | TUBE |
|
| SN74HCT74NE4 |
ACTIVE |
-40 to 85 |
0.40 | 1ku |
PDIP (N) | 14 |
20 | TUBE |
|
| SN74HCT74NSR |
ACTIVE |
-40 to 85 |
0.40 | 1ku |
SO (NS) | 14 |
2000 | LARGE T&R |
|
| SN74HCT74NSRE4 |
ACTIVE |
-40 to 85 |
0.40 | 1ku |
SO (NS) | 14 |
2000 | LARGE T&R |
|
| SN74HCT74NSRG4 |
ACTIVE |
-40 to 85 |
0.40 | 1ku |
SO (NS) | 14 |
2000 | LARGE T&R |
|
| SN74HCT74PW |
ACTIVE |
-40 to 85 |
0.43 | 1ku |
TSSOP (PW) | 14 |
70 | TUBE |
|
| SN74HCT74PWE4 |
ACTIVE |
-40 to 85 |
0.43 | 1ku |
TSSOP (PW) | 14 |
70 | TUBE |
|
| SN74HCT74PWG4 |
ACTIVE |
-40 to 85 |
0.43 | 1ku |
TSSOP (PW) | 14 |
70 | TUBE |
|
| SN74HCT74PWLE |
OBSOLETE |
-40 to 85 |
|
TSSOP (PW) | 14 |
|
|
| SN74HCT74PWR |
ACTIVE |
-40 to 85 |
0.36 | 1ku |
TSSOP (PW) | 14 |
2000 | LARGE T&R |
|
| SN74HCT74PWRE4 |
ACTIVE |
-40 to 85 |
0.36 | 1ku |
TSSOP (PW) | 14 |
2000 | LARGE T&R |
|
| SN74HCT74PWRG4 |
ACTIVE |
-40 to 85 |
0.36 | 1ku |
TSSOP (PW) | 14 |
2000 | LARGE T&R |
|
SN74HCT74 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| SN74HCT74DBR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HCT74DBR |
SN74HCT74DBR |
| SN74HCT74DBRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HCT74DBRG4 |
SN74HCT74DBRG4 |
| SN74HCT74DW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HCT74DW |
SN74HCT74DW |
| SN74HCT74DWE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HCT74DWE4 |
SN74HCT74DWE4 |
| SN74HCT74DWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HCT74DWG4 |
SN74HCT74DWG4 |
| SN74HCT74DWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HCT74DWR |
SN74HCT74DWR |
| SN74HCT74DWRE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HCT74DWRE4 |
SN74HCT74DWRE4 |
| SN74HCT74DWRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HCT74DWRG4 |
SN74HCT74DWRG4 |
| SN74HCT74N |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
SN74HCT74N |
SN74HCT74N |
| SN74HCT74NE4 |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
SN74HCT74NE4 |
SN74HCT74NE4 |
| SN74HCT74NSR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HCT74NSR |
SN74HCT74NSR |
| SN74HCT74NSRE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HCT74NSRE4 |
SN74HCT74NSRE4 |
| SN74HCT74NSRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HCT74NSRG4 |
SN74HCT74NSRG4 |
| SN74HCT74PW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HCT74PW |
SN74HCT74PW |
| SN74HCT74PWE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HCT74PWE4 |
SN74HCT74PWE4 |
| SN74HCT74PWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HCT74PWG4 |
SN74HCT74PWG4 |
| SN74HCT74PWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HCT74PWR |
SN74HCT74PWR |
| SN74HCT74PWRE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HCT74PWRE4 |
SN74HCT74PWRE4 |
| SN74HCT74PWRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HCT74PWRG4 |
SN74HCT74PWRG4 |
SN74HCT74 应用技术支持与电子电路设计开发资源下载
- SN74HCT74 数据资料 dataSheet 下载.PDF
- TI 德州仪器触发器/锁存器/寄存器产品选型与价格 . xls
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
- Understanding and Interpreting Standard-Logic Data Sheets (PDF 857 KB)
- TI IBIS File Creation, Validation, and Distribution Processes (PDF 380 KB)
- Implications of Slow or Floating CMOS Inputs (PDF 101 KB)
- CMOS Power Consumption and CPD Calculation (PDF 89 KB)
- Designing With Logic (PDF 186 KB)
- Live Insertion (PDF 150 KB)
- Input and Output Characteristics of Digital Integrated Circuits (PDF 1708 KB)
- Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (PDF 43 KB)
- HiRel Unitrode Power Management Brochure (PDF 206 KB)
- LOGIC Pocket Data Book (PDF 6001 KB)
- HiRel Unitrode Power Management Brochure (PDF 206 KB)
- Logic Cross-Reference (PDF 2938 KB)