Specifications
| Type | Description |
|---|---|
| Part Number | SN74LV245A |
| Manufacturer | Texas Instruments |
| Product Type | Buffer |
| Category | Logic |
| Package/Case | DB (SSOP, 20) 7.20 mm × 5.30 mm; DGV (TVSOP, 20) 5.00 mm × 4.40 mm; PW (TSSOP, 20) 6.50 mm × 4.40 mm; RGY (VQFN, 20) 4.50 mm × 3.50 mm; DW (SOIC, 20) 12.80 mm × 7.50 mm; RKS (VQFN, 20) 4.50 mm × 2.50 mm; DGS (VSSOP, 20) 5.10 mm × 3.00 mm; N (PDIP, 20) 24.33 mm × 6.35 mm; NS (SO, 20) 12.60 mm × 5.30 mm |
| Datasheet Manufacturer | Texas Instruments; datasheet copyright and product folder indicate Texas Instruments; supplied manufacturer value CREE conflicts with datasheet |
| Function | Octal bus transceiver with 3-state outputs |
| Supply Voltage Range | 2 V to 5.5 V; recommended operating conditions |
| Absolute Maximum Supply Voltage | -0.5 V to 7 V; absolute maximum ratings |
| Input Voltage Range | 0 V to 5.5 V; recommended operating conditions |
| Absolute Maximum Input Voltage | -0.5 V to 7 V; except I/O ports; absolute maximum ratings |
| High-Level Input Voltage | 1.5 V min; VCC = 2 V |
| High-Level Input Voltage | 0.7 × VCC min; VCC = 2.3 V to 2.7 V, 3 V to 3.6 V, or 4.5 V to 5.5 V |
| Low-Level Input Voltage | 0.5 V max; VCC = 2 V |
| Low-Level Input Voltage | 0.3 × VCC max; VCC = 2.3 V to 2.7 V, 3 V to 3.6 V, or 4.5 V to 5.5 V |
| Output Voltage Range | 0 V to VCC; high or low output state; recommended operating conditions |
| Output Voltage Range | 0 V to 5.5 V; 3-state output; recommended operating conditions |
| High-Level Output Current | -50 µA; VCC = 2 V |
| High-Level Output Current | -2 mA; VCC = 2.3 V to 2.7 V |
| High-Level Output Current | -8 mA; VCC = 3 V to 3.6 V |
| High-Level Output Current | -16 mA; VCC = 4.5 V to 5.5 V |
| Low-Level Output Current | 50 µA; VCC = 2 V |
| Low-Level Output Current | 2 mA; VCC = 2.3 V to 2.7 V |
| Low-Level Output Current | 8 mA; VCC = 3 V to 3.6 V |
| Low-Level Output Current | 16 mA; VCC = 4.5 V to 5.5 V |
| Operating Free-Air Temperature | -40°C to 125°C; recommended operating conditions |
| Storage Temperature Range | -65°C to 150°C; ESD ratings table |
| Maximum Propagation Delay | 6.5 ns; VCC = 5 V ± 0.5 V, CL = 15 pF, -40°C to 85°C |
| Propagation Delay | typ 4.3 ns, max 5.5 ns at TA = 25°C; max 6.5 ns from -40°C to 85°C; max 7 ns from -40°C to 125°C; A or B to B or A, VCC = 5 V ± 0.5 V, CL = 15 pF |
| Propagation Delay | typ 5.6 ns, max 7.5 ns at TA = 25°C; max 8.5 ns from -40°C to 85°C; max 9 ns from -40°C to 125°C; A or B to B or A, VCC = 5 V ± 0.5 V, CL = 50 pF |
| Output Enable Time | typ 5.7 ns, max 8.5 ns at TA = 25°C; max 10 ns from -40°C to 85°C; max 10.5 ns from -40°C to 125°C; OE to A or B, VCC = 5 V ± 0.5 V, CL = 15 pF |
| Output Disable Time | typ 7.8 ns, max 12.8 ns at TA = 25°C; max 14.2 ns from -40°C to 85°C; max 14.7 ns from -40°C to 125°C; OE to A or B, VCC = 5 V ± 0.5 V, CL = 15 pF |
| Propagation Delay | typ 5.9 ns, max 8.4 ns at TA = 25°C; max 10 ns from -40°C to 85°C; max 11 ns from -40°C to 125°C; A or B to B or A, VCC = 3.3 V ± 0.3 V, CL = 15 pF |
| Propagation Delay | typ 7.9 ns, max 11.9 ns at TA = 25°C; max 13.5 ns from -40°C to 85°C; max 14.5 ns from -40°C to 125°C; A or B to B or A, VCC = 3.3 V ± 0.3 V, CL = 50 pF |
| Propagation Delay | typ 8.3 ns, max 13 ns at TA = 25°C; max 15 ns from -40°C to 85°C; max 17 ns from -40°C to 125°C; A or B to B or A, VCC = 2.5 V ± 0.2 V, CL = 15 pF |
| VOH | VCC - 0.1 V min; IOH = -50 µA, VCC = 2 V to 5.5 V |
| VOH | 2 V min; IOH = -2 mA, VCC = 2.3 V |
| VOH | 2.48 V min; IOH = -8 mA, VCC = 3 V |
| VOH | 3.8 V min; IOH = -16 mA, VCC = 4.5 V |
| VOL | 0.1 V max; IOL = 50 µA, VCC = 2 V to 5.5 V |
| VOL | 0.4 V max; IOL = 2 mA, VCC = 2.3 V |
| VOL | 0.44 V max; IOL = 8 mA, VCC = 3 V |
| VOL | 0.55 V max; IOL = 16 mA, VCC = 4.5 V |
| Control Input Leakage Current | ±1 µA max; VI = 5.5 V or GND, VCC = 0 V to 5.5 V |
| 3-State Output Leakage Current | ±5 µA max; A or B port, VO = VCC or GND, VCC = 5.5 V |
| Supply Current | 20 µA max; VI = VCC or GND, IO = 0, VCC = 5.5 V |
| Power-Off Leakage Current | 5 µA max; VI or VO = 0 V to 5.5 V, VCC = 0 V |
| Control Input Capacitance | 3 pF typ; VI = VCC or GND, VCC = 3.3 V or 5 V |
| I/O Port Capacitance | 5.5 pF typ; A or B port, VO = VCC or GND, VCC = 3.3 V or 5 V |
| ESD Rating HBM | 2000 V; Human body model, ANSI/ESDA/JEDEC JS-001, all pins |
| ESD Rating CDM | 1000 V; Charged device model, JESD22-C101, all pins |
| ESD Rating Machine Model | 200 V; JESD 22 A115-A, feature list |
| Latch-Up Performance | exceeds 250 mA; per JESD 17 |
| Power Dissipation Capacitance | 20 pF typ; outputs enabled, CL = 50 pF, f = 10 MHz, VCC = 3.3 V, TA = 25°C |
| Power Dissipation Capacitance | 25 pF typ; outputs enabled, CL = 50 pF, f = 10 MHz, VCC = 5 V, TA = 25°C |
| Junction-to-Ambient Thermal Resistance | DB 113.1, DGV 114.8, DW 96.2, NS 101.1, PW 101.5, RGY 34.1, RKS 67.7, DGS 118.4 °C/W; 20-pin packages |
| Pin Count | 20 pins; all listed packages |
| Control Pins | DIR pin 1, OE pin 19; pin functions table |
| Power Pins | GND pin 10, VCC pin 20; pin functions table |
| Bus Pins | A1-A8 pins 2-9; B1-B8 pins 18-11; pin functions table |
| Datasheet Status | request_only |
Product Overview
The recommended supply voltage range is 2 V to 5.5 V, with input voltage from 0 V to 5.5 V. Output voltage is specified from 0 V to VCC in the high or low output state and from 0 V to 5.5 V in the 3-state condition. Output drive ratings vary by VCC, from ±50 µA at 2 V to ±16 mA at 4.5 V to 5.5 V.
Key Features
- Octal bus transceiver with 3-state outputs
- Recommended supply range from 2 V to 5.5 V
- Input voltage range from 0 V to 5.5 V
- High or low output range from 0 V to VCC
- 3-state output range from 0 V to 5.5 V
- Output drive up to ±16 mA at 4.5 V to 5.5 V
- Operating free-air temperature from -40°C to 125°C
- HBM ESD rating is 2000 V on all pins
- CDM ESD rating is 1000 V on all pins
- Power-off leakage current is 5 µA maximum
- DIR and OE control pins support bus control
- Available in multiple 20-pin package formats
Typical Applications
- Bidirectional bus interface
- 3-state bus isolation
- Octal digital signal buffering
- 2 V to 5.5 V logic buses
- Controlled A-to-B bus direction
- Controlled B-to-A bus direction
- 20-pin interface assemblies
Procurement Notes
When requesting a quote for SN74LV245A, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For MCU, processor and logic IC sourcing, package, operating voltage, temperature grade, speed or frequency grade, firmware or mask version, lifecycle status and programming requirements should be checked before approval.
FAQ
What function does SN74LV245A provide?
SN74LV245A is identified in the extracted facts as an octal bus transceiver with 3-state outputs. It uses A1-A8 and B1-B8 bus pins, with DIR and OE pins for direction and output-enable control.
What supply voltage range is specified for SN74LV245A?
The recommended operating supply voltage range is 2 V to 5.5 V. The absolute maximum supply voltage rating is -0.5 V to 7 V, according to the extracted absolute maximum ratings.
Which packages are listed for SN74LV245A?
The extracted facts list multiple 20-pin packages, including SSOP, TVSOP, TSSOP, VQFN, SOIC, VSSOP, PDIP, and SO package formats with package-specific body dimensions.
What are the key SN74LV245A control and power pins?
The pin function facts identify DIR on pin 1 and OE on pin 19. Power pins are GND on pin 10 and VCC on pin 20, with A1-A8 and B1-B8 used as bus pins.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.