CD74HCT299 具有三态输出的高速 CMOS 逻辑 8 位通用移位寄存器
The ’HC259 and ’HCT299 are 8-bit shift/storage registers with three-state bus interface capability. The register has four synchronous-operating modes controlled by the two select inputs as shown in the mode select (S0, S1) table. The mode select, the serial data (DS0, DS7) and the parallel data (I/O0 – I/O7) respond only to the low-to-high transition of the clock (CP) pulse. S0, S1 and data inputs must be one set-up time prior to the clock positive transition.
The Master Reset (MR)\ is an asynchronous active low input. When MR\ output is low, the register is cleared regardless of the status of all other inputs. The register can be expanded by cascading same units by tying the serial output (Q0) to the serial data (DS7) input of the preceding register, and tying the serial output (Q7) to the serial data (DS0) input of the following register
CD74HCT299 特性
- Buffered Inputs
- Four Operating Modes: Shift Left, Shift Right, Load and Store
- Can be Cascaded for N-Bit Word Lengths
- I/O0 – I/O7 Bus Drive Capability and Three-State for Bus Oriented Applications
- Typical fMAX = 50MHz at VCC =5V, CL = 15pF, TA = 25°C
- Fanout (Over Temperature Range)
- Standard Outputs. . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . 15 LSTTL Loads
- Wide Operating Temperature Range . . . –55°C to 125°C
- Balanced Propagation Delay and Transition Times
- Significant Power Reduction Compared to LSTTL Logic ICs
- HC Types
- 2V to 6V Operation
- High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
- HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
- CMOS Input Compatibility, Il
1uA at VOL, VOH
CD74HCT299 芯片订购指南
| 器件 |
状态 |
温度 |
价格 |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| CD74HCT299E |
ACTIVE |
-55 to 125 |
0.65 | 1ku |
PDIP (N) | 20 |
20 | TUBE |
CD74HCT299E |
| CD74HCT299EE4 |
ACTIVE |
-55 to 125 |
0.65 | 1ku |
PDIP (N) | 20 |
20 | TUBE |
CD74HCT299E |
| CD74HCT299M |
ACTIVE |
-55 to 125 |
0.60 | 1ku |
SOIC (DW) | 20 |
25 | TUBE |
HC299M |
| CD74HCT299M96 |
ACTIVE |
-55 to 125 |
0.48 | 1ku |
SOIC (DW) | 20 |
2000 | LARGE T&R |
HC299M |
| CD74HCT299M96E4 |
ACTIVE |
-55 to 125 |
0.48 | 1ku |
SOIC (DW) | 20 |
2000 | LARGE T&R |
HC299M |
| CD74HCT299M96G4 |
ACTIVE |
-55 to 125 |
0.48 | 1ku |
SOIC (DW) | 20 |
2000 | LARGE T&R |
HC299M |
| CD74HCT299ME4 |
ACTIVE |
-55 to 125 |
0.60 | 1ku |
SOIC (DW) | 20 |
25 | TUBE |
HC299M |
| CD74HCT299MG4 |
ACTIVE |
-55 to 125 |
0.60 | 1ku |
SOIC (DW) | 20 |
25 | TUBE |
HC299M |
CD74HCT299 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 |
| CD74HCT299E |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
CD74HCT299E |
CD74HCT299E |
| CD74HCT299EE4 |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
CD74HCT299EE4 |
CD74HCT299EE4 |
| CD74HCT299M |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
CD74HCT299M |
CD74HCT299M |
| CD74HCT299M96 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
CD74HCT299M96 |
CD74HCT299M96 |
| CD74HCT299M96E4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
CD74HCT299M96E4 |
CD74HCT299M96E4 |
| CD74HCT299M96G4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
CD74HCT299M96G4 |
CD74HCT299M96G4 |
| CD74HCT299ME4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
CD74HCT299ME4 |
CD74HCT299ME4 |
| CD74HCT299MG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
CD74HCT299MG4 |
CD74HCT299MG4 |
CD74HCT299 应用技术支持与电子电路设计开发资源下载
- CD74HCT299 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)