Overview
The M74HC595YTTR is a high-speed CMOS 8-bit shift register with output latches (3-state) produced by STMicroelectronics. This device is fabricated using silicon gate C2MOS technology and features an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. The storage register has 8 3-state outputs, and separate clocks are provided for both the shift register and the storage register. The device includes direct overriding clear, serial input, and serial output pins for cascading, and all inputs are equipped with protection circuits against static discharge and transient excess voltage.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Temperature | -40 | 125 | °C | |
| Supply Voltage (VCC) | 2.0 | 6.0 | V | |
| High-level Input Voltage (VCC = 6 V) | 4.2 | V | ||
| Low-level Input Voltage (VCC = 6 V) | 1.8 | V | ||
| Propagation Delay (SHCP to Q7S, VCC = 6 V) | 15 | 27 | 41 | ns |
| Propagation Delay (STCP to Qn, VCC = 6 V) | 16 | 30 | 45 | ns |
| Output Current (IOH, IOL) | 4 | mA | ||
| Package Type | TSSOP-16L |
Key Features
- High speed: fMAX = 59 MHz (typ.) at VCC = 6 V.
- Low power dissipation: ICC = 4 μA (max.) at TA = 25 °C.
- High noise immunity: VNIH = VNIL = 28% VCC(min.).
- Symmetrical output impedance: |IOH| = IOL = 6 mA (min.) for QA to QH.
- Balanced propagation delays: tPLH≅ tPHL.
- Wide operating voltage range: VCC(opr.) = 2 V to 6 V.
- Pin and function compatible with 74 series 595.
- ESD performance: HBM: 2 kV, MM: 200 V, CDM: 1 kV.
Applications
The M74HC595YTTR is suitable for a variety of applications requiring serial-to-parallel data conversion, such as:
- Display drivers and LED drivers where serial data needs to be converted to parallel outputs.
- Automotive systems where high-speed and low power consumption are critical.
- Industrial control systems requiring reliable and high-speed data transfer.
- Consumer electronics where compact packaging and low power are essential.
Q & A
- What is the M74HC595YTTR?
The M74HC595YTTR is a high-speed CMOS 8-bit shift register with output latches (3-state) produced by STMicroelectronics.
- What is the operating temperature range of the M74HC595YTTR?
The operating temperature range is from -40°C to 125°C.
- What is the supply voltage range for the M74HC595YTTR?
The supply voltage range is from 2.0 V to 6.0 V.
- How many bits does the shift register have?
The shift register has 8 bits.
- What type of outputs does the M74HC595YTTR have?
The device has 3-state outputs.
- What is the maximum propagation delay for the SHCP to Q7S transition at VCC = 6 V?
The maximum propagation delay is 41 ns.
- What is the package type of the M74HC595YTTR?
The package type is TSSOP-16L.
- Does the M74HC595YTTR have ESD protection?
Yes, it has ESD protection with HBM: 2 kV, MM: 200 V, CDM: 1 kV.
- What are some common applications for the M74HC595YTTR?
Common applications include display drivers, LED drivers, automotive systems, industrial control systems, and consumer electronics.
- How does the reset function work on the M74HC595YTTR?
The reset function (MR) sets all shift register values to zero when asserted low, independent of all clocks.
