The 'LVTH16244A devices are 16-bit buffers and line drivers designed for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment. These devices can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. These devices provide true outputs and symmetrical active-low output-enable (OE) inputs.
Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.
When VCC is between 0 and 1.5 V, the devices are in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.5 V, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
These devices are fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict
| SN54LVTH16244A | SN74LVTH16244A | |
| Voltage Nodes(V) | 3.3, 2.7 | 3.3, 2.7 |
| Vcc range(V) | 2.7 to 3.6 | 2.7 to 3.6 |
| Logic | True | True |
| Input Level | TTL/CMOS | TTL/CMOS |
| Output Level | LVTTL | LVTTL |
| Output Drive(mA) | -24/48 | -32/64 |
| No. of Gates | 16 | |
| No. of Outputs | 16 | 16 |
| tpd max(ns) | 4.4 | 4.1 |
| Static Current | 5 mA | 2.54 |
| Rating | Military | Catalog |
| Technology Family | LVT | LVT |
| 器件 | 状态 | 温度 | 价格（美元） | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| SN74LVTH16244ADL | ACTIVE | -40 to 85 | 1.20 | 1ku | SSOP (DL) | 48 | 25 | TUBE | LVTH16244A |
| SN74LVTH16244ADLR | ACTIVE | -40 to 85 | 1.05 | 1ku | SSOP (DL) | 48 | 1000 | LARGE T&R | LVTH16244A |
| 器件 | 环保计划* | 铅/焊球涂层 | MSL 等级/回流焊峰 | 环保信息与无铅 (Pb-free) | DPPM / MTBF / FIT 率 |
| SN74LVTH16244ADL | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH16244ADL | SN74LVTH16244ADL |
| SN74LVTH16244ADLR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH16244ADLR | SN74LVTH16244ADLR |
