SN74LV8154PW Part Information
Details for SN74LV8154PW by Texas Instruments
Semiconductors - ICs > Logic > Counters
Part Description
The SN74LV8154 device is a dual 16-bit binary counter with 3-state output registers, designed for 2-V to 5.5-V VCC operation. The counters have dedicated clock inputs. The counters share a clocked storage register to sample and save the counter contents. Both counters share an asynchronous clear input. The 32-bit storage register can be mapped on the output bus 8-bits at a time. Four bus reads are needed to access the contents of both stored counts. The two counters can be chained by connecting CLKBEN to RCOA. All clocks are positive edge triggered. All other inputs are active low. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
Part Downloads
Download PCB Footprint from Ultra Librarian
Part Features
- 2-V to 5.5-V VCC Operation
- 8 bit counter read bus
- Can Be Used as Two 16-Bit Counters or a Single 32-Bit Counter
- ESD Protection Exceeds JESD 22
- Ioff Supports Partial-Power-Down Mode Operation
- Latch-Up Performance Exceeds 250 mA Per JESD 17
- Maximum tpd of 25 ns at 5 V (RCLK to Y)
- Typical VOHV (Output VOH Undershoot) > 4.4 V at VCC = 5 V, TA = 25u00b0C
- Typical VOLP (Output Ground Bounce) < 0.7 V at VCC = 5 V, TA = 25u00b0C
Part Specifications
| Logic Family / Base Number | 74LV81 |
| Counter Type | Binary |
| Clock Frequency | 40MHz |
| Count Maximum | 65535 |
| Logic Case Style | TSSOP |
| No. of Pins | 20Pins |
| Supply Voltage Min | 2V |
| Supply Voltage Max | 5.5V |
| Logic IC Family | 74LV |
| Logic IC Base Number | 7481, 748154 |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 85°C |
| Product Range | - |
| RoHS Phthalates Compliant | Yes |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (27-Jun-2018) |
| Count Max | 65536 |
| Logic Function Number | 748154 |
| Logic IC Function | Dual 16-Bit Binary Counter with 3-State Output Registers |
| Operating Temperature Range | -40°C to +85°C |
| Supply Voltage Range | 2V to 5.5V |
| Termination Type | Surface Mount Device |
Alternative Part Descriptions
- Counter/Register Dual 16-Bit Binary | RS Components
- Dual 16-Bit Binary Counters with 3-State Output Registers | Texas Instruments