CD74HC563E Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
Texas Instruments CD74HC563E is a high-speed CMOS octal inverting transparent latch with 3-state bus outputs in a 20-pin DIP package. Supports 50 pF load drive with active-low enable control for straightforward bus interface designs. Available from stock worldwide with global shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- CD74HC563E Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4752(MOQ 1)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CD74HC563E?
- 8-bit transparent latch with inverting outputs and 3-state bus capability, enabling direct data bus buffering with minimal external logic
- Active-low enable control and broadside pin arrangement compatible with 74HC533 for flexible layout in legacy and new board designs
- High-speed CMOS HC family operation at 2 V to 6 V supply with 50 pF load drive, bridging TTL and CMOS logic levels
What is CD74HC563E used for?
The CD74HC563E is used as an 8-bit data bus latch and buffer in microprocessor and microcontroller designs, where it holds data byte values on the bus while enabling downstream peripherals to read at their own pace. It fits address demultiplexing circuits in 8051-family and Z80 designs that use multiplexed address and data buses. The DIP-20 through-hole package simplifies prototyping on breadboards and evaluation boards requiring quick assembly and rework.
What are the specifications of CD74HC563E?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | BROADSIDE VERSION OF 533 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | HC/UH |
| JESD-30 Code | R-PDIP-T20 |
| 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 | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 45ns |
| Propagation Delay (tpd) | 250ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Where can I find the CD74HC563E datasheet?
CD74HC563E Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC563E?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the CD74HC563E differ from the CD74HC533, and when should designers choose one over the other?
The CD74HC563E is the broadside pin version of the CD74HC533, meaning data inputs and outputs share the same physical side of the 20-pin DIP package rather than opposing sides. This broadside layout simplifies PCB routing when bus lines run parallel on the same board layer, while the CD74HC533 is preferred when input and output buses are on opposite sides of the component.
What supply voltage range does the CD74HC563E support, and can it interface with both TTL and 3.3 V CMOS logic?
The CD74HC563E operates from 2 V to 6 V, allowing direct connection to 3.3 V CMOS logic outputs while retaining compatibility with 5 V TTL systems. At 5 V the output drive current meets standard HC-family specifications of 4 mA, sufficient to drive 50 pF bus loads typical in short backplane and PCB trace environments.
How does the 3-state output feature of the CD74HC563E enable multi-device bus sharing?
When the output enable is deasserted, all 8 outputs of the CD74HC563E enter a high-impedance state, disconnecting the latch from the bus and allowing other devices to drive the same 8-bit bus lines. This 3-state control allows multiple latches or bus drivers to share a common data bus without signal contention, which is essential in multi-master microprocessor systems.
For a rapid prototype, how easy is the CD74HC563E to use on a standard breadboard?
The CD74HC563E comes in a 20-pin 600-mil DIP package with 2.54 mm pin pitch, which fits standard solderless breadboards and prototype perfboards directly. Its 20-pin DIP footprint spans 10 breadboard rows, and the 2 V to 6 V supply range means a single 5 V bench supply powers the device with no additional regulation required for most prototype circuits.
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Why Buy from FindMyChip
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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.5880 | $0.59 |
| 24+ | $0.4752 | $11.40 |
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