Overview
The 74HC165D is a high-speed CMOS 8-bit parallel-load shift register produced by Toshiba Semiconductor and Storage. This device is designed to shift data from parallel inputs to a serial output. It features a wide operating voltage range, low power consumption, and high-speed operation, making it suitable for various applications.
The 74HC165D uses silicon gate C2MOS technology, which combines the high speed of LSTTL with the low power dissipation of CMOS. It includes gated clock inputs and a clock-inhibit function, allowing for flexible control over data shifting and loading.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Temperature | -40°C to 85°C |
| Operating Voltage Range | 2.0 V to 6.0 V |
| Maximum Clock Frequency | 56 MHz (typ.) at VCC = 5 V |
| Power Consumption | ICC = 4.0 µA (max) at Ta = 25°C |
| Package / Case | 16-SOIC (0.154, 3.90mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | RoHS Compliant |
| Output Drive | ±4-mA at 5 V |
| Input Current | 1 µA Maximum |
Key Features
- Wide operating voltage range of 2 V to 6 V
- High speed operation with a maximum clock frequency of 56 MHz at VCC = 5 V
- Low power consumption with ICC = 4.0 µA (max) at Ta = 25°C
- Outputs can drive up to 10 LSTTL loads
- Complementary serial outputs
- Direct overriding load (data) inputs
- Gated clock inputs and clock-inhibit function
- Parallel-to-serial data conversion
- Protection circuits against static discharge and transient excess voltage
Applications
- Programmable devices
- Appliances
- Video display systems
- Output expanders
- Keyboards
- Generating PN (Pseudo Noise) sequences in CDMA (Code Division Multiple Access) systems
Q & A
- What is the 74HC165D?
The 74HC165D is a high-speed CMOS 8-bit parallel-load shift register.
- What is the operating temperature range of the 74HC165D?
The operating temperature range is -40°C to 85°C.
- What is the maximum clock frequency of the 74HC165D?
The maximum clock frequency is 56 MHz at VCC = 5 V.
- What is the power consumption of the 74HC165D?
The power consumption is ICC = 4.0 µA (max) at Ta = 25°C.
- What type of package does the 74HC165D come in?
The 74HC165D comes in a 16-SOIC package.
- Is the 74HC165D RoHS compliant?
Yes, the 74HC165D is RoHS compliant.
- What are the key features of the 74HC165D?
The key features include a wide operating voltage range, high speed operation, low power consumption, and gated clock inputs.
- What are some typical applications of the 74HC165D?
Typical applications include programmable devices, appliances, video display systems, output expanders, and keyboards.
- How does the 74HC165D handle clocking and data loading?
The 74HC165D uses a gated clock input and a clock-inhibit function to control data shifting and loading. Data can be loaded in parallel when the SHIFT/LOAD input is low, and serial data input is enabled when the SHIFT/LOAD input is high.
- Does the 74HC165D have protection against static discharge?
Yes, the 74HC165D has protection circuits against static discharge and transient excess voltage.
