CD74HC573M96G4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments CD74HC573M96G4 is an octal 3-state D-type transparent latch in the HC logic family, featuring active-low output enable and broadside pinout, operating from 2 V to 6 V in a 20-pin SOIC package.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- CD74HC573M96G4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3313(MOQ 1000)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit transparent D-latch with 3-state outputs and active-low output enable, providing bus isolation and address/data hold functionality in 8-bit microprocessor and FPGA interfaces
- Broadside pinout (all inputs on one side, all outputs on the other) simplifies PCB trace routing compared to the staggered 74HC373 pin arrangement, reducing layout complexity
- HC family operation from 2 V to 6 V with 50 pF load capacitance rating ensures compatibility with both 3.3 V and 5 V logic systems in mixed-voltage bus designs
Applications
The CD74HC573M96G4 is used as an 8-bit address latch in demultiplexed bus architectures—such as Intel 8051 and classic microprocessor systems—where address and data share the same 8-bit port and need to be latched on LE assertion. It is also used in FPGA I/O expansion boards, memory interface circuits, and parallel data pipeline stages where a transparent latch with 3-state bus release is required. The 20-pin SOIC package suits automated SMT assembly on high-volume consumer and industrial PCBs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | BROADSIDE VERSION OF 373 |
| Control Type | ENABLE LOW/HIGH |
| Count Direction | UNIDIRECTIONAL |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.0078A |
| Number of Bits | 8 |
| Number of Functions | 8 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 53ns |
| Propagation Delay (tpd) | 265ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC573M96G4:
Frequently Asked Questions
How does the broadside pinout of the CD74HC573M96G4 differ from the 74HC373, and why does it matter for PCB layout?
The CD74HC573 places all 8 data inputs (D0–D7) on one side of the 20-pin SOIC and all 8 outputs (Q0–Q7) on the opposite side, enabling straight-through bus routing without crossovers. The 74HC373 has an interleaved pinout that forces trace crossings, increasing PCB layer count or routing complexity. For dense 8-bit bus boards, the 573 broadside layout can reduce routing layers by 1.
At what supply voltage range does the CD74HC573M96G4 guarantee valid 3-state output performance?
The CD74HC573M96G4 operates across a 2 V to 6 V supply range, maintaining valid 3-state high-impedance output over this full range. At 3.3 V the device achieves typical propagation delays around 9 ns at 50 pF load, while at 5 V delays fall to approximately 7 ns, making it compatible with both 3.3 V LVTTL and 5 V TTL bus standards.
In a multiplexed address/data bus design, how does the CD74HC573M96G4 latch the lower address byte from an 8051 MCU?
In an 8051 demultiplexed bus, the CD74HC573 LE input connects to the ALE (Address Latch Enable) signal. When ALE pulses high during the address phase, the 8 transparent inputs capture the lower 8 address bits from the AD0–AD7 port. On the falling edge of ALE, the latch freezes the address, holding it stable on the outputs while the same AD0–AD7 pins switch to carry data, separating a 16-bit address from 8-bit data with a single IC.
What is the maximum output current the CD74HC573M96G4 can drive per pin for LED indicators?
The HC family output can source or sink up to 25 mA per pin at 5 V supply, with an absolute maximum of 35 mA. For standard 20 mA red or green indicator LEDs, a single 100 Ω to 150 Ω series resistor per output suffices. However, total package dissipation limits simultaneous full-load drive on all 8 outputs, so high-current LED arrays typically use dedicated LED driver ICs downstream.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1000+ | $0.4480 | $448.00 |
| 2000+ | $0.4290 | $858.00 |
| 4000+ | $0.4170 | $1668.00 |
| 10000+ | $0.3375 | $3374.80 |
| 14000+ | $0.3343 | $4680.48 |
| 20000+ | $0.3313 | $6625.80 |
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