CD4099BF Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
Texas Instruments CD4099BF is a CMOS 8-channel addressable D-type latch that doubles as a 1-of-8 demultiplexer, storing 8 bits of data via a 3-bit address bus in a 16-pin ceramic DIP package. Supports 50 pF load capacitance with 2.4 mA maximum output low current from the 4000-series CMOS family. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD4099BF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.0560(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 CD4099BF?
- 8-bit addressable D-latch with 3-bit address bus enabling serial-to-parallel data expansion using only 3 control lines plus data
- Dual-function operation as 1-of-8 demultiplexer, routing a single data input to any of 8 latched outputs without additional logic
- CMOS 4000-series technology with 50 pF load capacitance in a 16-pin ceramic DIP (CDIP) package for high-reliability applications
What is CD4099BF used for?
The CD4099BF is used to expand microcontroller I/O by writing individual control bits to 8 independently addressed output latches over a shared 3-wire bus of address lines and a data line. It is well suited for controlling relay drivers, LED indicator arrays, and output port expanders in industrial control panels where the ceramic DIP package provides the high-temperature and mechanical durability required by mil/aero and legacy industrial equipment. The demultiplexer mode also makes it convenient for steering a single digital signal to any of 8 destinations in programmable logic test fixtures.
What are the specifications of CD4099BF?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | LATCH ACTS AS 1-OF-8 DEMULTIPLEXER |
| Family | 4000/14000/40000 |
| JESD-30 Code | R-GDIP-T16 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | D LATCH |
| Max I(ol) | 0.0024A |
| Number of Bits | 8 |
| Number of Functions | 8 |
| Output Polarity | TRUE |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.3mA |
| Prop. Delay@Nom-Sup | 150ns |
| Propagation Delay (tpd) | 400ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 18V |
| Supply Voltage-Min (Vsup) | 3V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Trigger Type | LOW LEVEL |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the CD4099BF datasheet?
CD4099BF Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD4099BF?
Compatible alternatives and drop-in replacements for CD4099BF:
Latch, 4000/14000/40000 Series, 1-Func, Low Level Triggered, 1-Bit, True Output, CMOS, CDIP16
Frequently Asked Questions
How does the 3-bit address bus of CD4099BF enable 8-output control from a minimal pin count?
The 3 address pins (A0, A1, A2) select one of the 8 latch outputs at a time. A write-enable pulse combined with the data input stores the desired bit in the addressed latch, leaving the other 7 outputs unchanged. This means a microcontroller can control 8 independent digital outputs using only 4 pins — 3 address lines and 1 data line — reducing port usage by 4 pins compared with driving 8 discrete outputs directly.
What output drive current does CD4099BF provide, and what loads can it directly switch?
Each output has a maximum low-level sink current of 2.4 mA, which is sufficient to drive standard CMOS logic inputs and small-signal LEDs with a 470 Ω current-limiting resistor from a 3.3 V rail. For higher-current loads such as relay coils or power LEDs, a discrete NPN transistor or a MOSFET buffer on each output is recommended, as the 2.4 mA limit would otherwise limit output pull-down to only low-current indicator circuits.
In what high-reliability or legacy system scenarios is the ceramic DIP package of CD4099BF preferred?
The 16-pin ceramic DIP (JESD-30 code R-GDIP-T16) is preferred in military, aerospace, and industrial equipment designed for operation above 85°C where plastic DIP packages risk moisture ingress or delamination. Ceramic packages also provide better hermeticity for long-term storage in military depot environments and remain pin-compatible with standard 16-pin DIP sockets used in legacy test fixtures and relay logic panels, simplifying drop-in replacement of older TTL latch ICs.
How does CD4099BF behave as a 1-of-8 demultiplexer, and when is this mode useful?
When the write-enable pin is held active, the data input is transparently routed to the output selected by the 3-bit address, making the device act as a 1-of-8 demultiplexer with 50 pF rated load on each output. This mode is useful in audio or digital routing matrices, programmable test stimulus generators, and scan-chain multiplexers where a single event signal must be steered to one of 8 destinations in sequence without retaining state between address changes.
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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+ | $10.1400 | $10.14 |
| 40+ | $4.3940 | $175.76 |
| 115+ | $4.0560 | $466.44 |
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