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Texas InstrumentsSN74ALVCHR16601GRThis 18-bit universal bus transceiver is designed for 1.65-V to 3.6-V VCC operation.
The SN74ALVCHR16601GR combines D-type latches and D-type flip-flops to allow data flow in transparent, latched, clocked, and clock-enabled modes.
Data flow in each direction is controlled by output-enable (OEAB\ and OEBA\), latch-enable (LEAB and LEBA), and clock (CLKAB and CLKBA) inputs. The clock can be controlled by the clock-enable (CLKENAB\ and CLKENBA\) inputs. For A-to-B data flow, the device operates in the transparent mode when LEAB is high. When LEAB is low, the A data is latched if CLKAB is held at a high or low logic level. If LEAB is low, the A data is stored in the latch/flip-flop on the low-to-high transition of CLKAB. When OEAB\ is low, the outputs are active. When OEAB\ is high, the outputs are in the high-impedance state.
Data flow for B to A is similar to that of A to B, but uses OEBA\, LEBA, CLKBA, and CLKENBA\.
The outputs include equivalent 26- series resistors to reduce overshoot and undershoot.
To ensure the high-impedance state during power up or power down, 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.
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.
TYPE | DESCRIPTION | Select all |
---|---|---|
Current - Output High, Low | 12mA, 12mA | |
Number of Circuits | 18-Bit | |
Logic Type | Universal Bus Transceiver | |
Product Status | Active | |
Package | Tape & Reel (TR) | |
Series | 74ALVCHR | |
Supplier Device Package | 56-TSSOP | |
Package / Case | 56-TFSOP (0.240", 6.10mm Width) | |
Mounting Type | Surface Mount | |
Operating Temperature | -40°C ~ 85°C | |
Voltage - Supply | 1.65V ~ 3.6V |
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