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AD9854ASVZ
Electronics Part Number
AD9854ASVZ-WXManufacturer
onsemi
AD9854ASVZ
Description
300 MHz Direct Digital Synthesizer, 12-Bit, 80-TQFPInventory
376 Pcs New Original In Stock
80-TQFP-EP DDS; 12-bit DAC, 300 MHz clock, 48-bit tuning, high resolution for medical imaging and sonar.
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Technical Specifications
Category
Logic, Shift Registers
Manufacturer
onsemi
Packaging
-
Operating Temperature
-55°C ~ 125°C
Mounting Type
Through Hole
Package / Case
16-DIP (0.300", 7.62mm)
Series
74HC
Base Product Number
74HC595
Product Status
Obsolete
Output Type
Tri-State
Voltage - Supply
2V ~ 6V
Function
Serial to Parallel, Serial
Supplier Device Package
16-PDIP
Number of Elements
1
Logic Type
Shift Register
Number of Bits per Element
8
Data Sheet Document (D)
Datasheets
Download MC74HC595ANG Product Specification (PDF)
HTML Datasheet
MC74HC595ANG-DG
Environmental & Export Classification
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
MC74HC595ANGOS
Standard Package
500
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Frequently Asked Questions (FAQ)
Can the MC74HC595ANG safely interface with 3.3V microcontrollers like the STM32 or ESP32, and what l
Yes, the MC74HC595ANG can safely interface with 3.3V microcontrollers as it supports supply voltages down to 2V and is 3.3V logic compatible. However, ensure that all input signals (e.g., from a 5V MCU) do not exceed VCC + 0.5V to avoid damaging the device. In mixed-voltage systems, if driving the MC74HC595ANG from a 5V microcontroller while powering it at 3.3V, use series resistors or dedicated level shifters (e.g., TXS0108E) to protect the inputs. Also, verify signal integrity when cascading multiple MC74HC595ANG devices due to reduced noise margin at lower VCC levels.
What are the risks of using the MC74HC595ANG in new designs given its obsolete status, and how shoul
The MC74HC595ANG is marked as obsolete by onsemi, meaning it's no longer recommended for new designs due to potential long-term availability risks. For prototyping or low-volume production, current inventory (8,290 pcs) may suffice, but for scalable projects, consider drop-in replacements like the CD74HC595E (Texas Instruments) or SN74HC595N (also obsolete but widely stocked). To mitigate supply risks, purchase enough stock for the product lifecycle or redesign with active-pin-compatible alternatives such as LSF0108 or 74AHC595 variants with similar functionality and active manufacturing status.
How does the tri-state output of the MC74HC595ANG benefit bus-sharing applications, and what are com
The tri-state output of the MC74HC595ANG allows multiple devices to share a common data bus without contention, which is essential in multiplexed LED displays or port-expansion systems. A common pitfall is leaving the OE pin unconnected or improperly pulled up/down; always use a 10kΩ pull-up resistor on the OE pin to ensure predictable output disable during power-up. Additionally, avoid toggling OE simultaneously with latch (RCLK) signals to prevent glitches on the output bus. For robust operation, ensure OE transitions occur only when the data lines are stable.
When replacing the SN74HC595N with the MC74HC595ANG in an existing PCB design, are there any functio
The MC74HC595ANG and SN74HC595N are functionally equivalent and pin-to-pin compatible, both conforming to the 74HC595 standard. However, subtle differences in propagation delay and AC performance may exist due to manufacturing variations between onsemi and TI. In high-speed cascaded configurations (>10 MHz shift clock), verify setup/hold times and clock-to-output delays in your specific operating conditions (especially at 2V or near temperature extremes). Also, confirm that the MC74HC595ANG's PDIP package thermal characteristics suit your ambient environment, as through-hole packages dissipate heat less efficiently in dense layouts.
What PCB layout and decoupling practices are critical when using the MC74HC595ANG in noise-sensitive
To minimize noise and ensure reliable operation of the MC74HC595ANG in sensitive environments, place a 100nF ceramic decoupling capacitor between VCC and GND as close as possible to the device pins, and add a 1μF bulk capacitor per IC group. Avoid long trace runs on clock and data lines to reduce EMI susceptibility. Route sensitive analog traces away from the MC74HC595ANG’s outputs, especially when driving high capacitive loads. In high-reliability applications, consider using guard rings or ground planes under the 16-DIP package to improve thermal and electrical stability, particularly given its through-hole mounting type and wide temperature range of -55°C to 125°C.
Can the MC74HC595ANG safely interface with 3.3V microcontrollers like the STM32 or ESP32, and what l
Yes, the MC74HC595ANG can safely interface with 3.3V microcontrollers as it supports supply voltages down to 2V and is 3.3V logic compatible. However, ensure that all input signals (e.g., from a 5V MCU) do not exceed VCC + 0.5V to avoid damaging the device. In mixed-voltage systems, if driving the MC74HC595ANG from a 5V microcontroller while powering it at 3.3V, use series resistors or dedicated level shifters (e.g., TXS0108E) to protect the inputs. Also, verify signal integrity when cascading multiple MC74HC595ANG devices due to reduced noise margin at lower VCC levels.
What are the risks of using the MC74HC595ANG in new designs given its obsolete status, and how shoul
The MC74HC595ANG is marked as obsolete by onsemi, meaning it's no longer recommended for new designs due to potential long-term availability risks. For prototyping or low-volume production, current inventory (8,290 pcs) may suffice, but for scalable projects, consider drop-in replacements like the CD74HC595E (Texas Instruments) or SN74HC595N (also obsolete but widely stocked). To mitigate supply risks, purchase enough stock for the product lifecycle or redesign with active-pin-compatible alternatives such as LSF0108 or 74AHC595 variants with similar functionality and active manufacturing status.
How does the tri-state output of the MC74HC595ANG benefit bus-sharing applications, and what are com
The tri-state output of the MC74HC595ANG allows multiple devices to share a common data bus without contention, which is essential in multiplexed LED displays or port-expansion systems. A common pitfall is leaving the OE pin unconnected or improperly pulled up/down; always use a 10kΩ pull-up resistor on the OE pin to ensure predictable output disable during power-up. Additionally, avoid toggling OE simultaneously with latch (RCLK) signals to prevent glitches on the output bus. For robust operation, ensure OE transitions occur only when the data lines are stable.
When replacing the SN74HC595N with the MC74HC595ANG in an existing PCB design, are there any functio
The MC74HC595ANG and SN74HC595N are functionally equivalent and pin-to-pin compatible, both conforming to the 74HC595 standard. However, subtle differences in propagation delay and AC performance may exist due to manufacturing variations between onsemi and TI. In high-speed cascaded configurations (>10 MHz shift clock), verify setup/hold times and clock-to-output delays in your specific operating conditions (especially at 2V or near temperature extremes). Also, confirm that the MC74HC595ANG's PDIP package thermal characteristics suit your ambient environment, as through-hole packages dissipate heat less efficiently in dense layouts.
What PCB layout and decoupling practices are critical when using the MC74HC595ANG in noise-sensitive
To minimize noise and ensure reliable operation of the MC74HC595ANG in sensitive environments, place a 100nF ceramic decoupling capacitor between VCC and GND as close as possible to the device pins, and add a 1μF bulk capacitor per IC group. Avoid long trace runs on clock and data lines to reduce EMI susceptibility. Route sensitive analog traces away from the MC74HC595ANG’s outputs, especially when driving high capacitive loads. In high-reliability applications, consider using guard rings or ground planes under the 16-DIP package to improve thermal and electrical stability, particularly given its through-hole mounting type and wide temperature range of -55°C to 125°C.
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Sep 15 2026
