CBTLV3245A
CBTLV3245A is LOW-VOLTAGE OCTAL FET BUS SWITCH manufactured by Texas Instruments.
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Features
- Standard '245-Type Pinout
- 5-Ω Switch Connection Between Two Ports
- Rail-to-Rail Switching on Data I/O Ports
- Ioff Supports Partial-Power-Down Mode
Operation
DBQ, DGV, DW, OR PW PACKAGE (TOP VIEW)
NC 1 A1 2 A2 3 A3 4 A4 5 A5 6 A6 7 A7 8 A8 9 GND 10
20 VCC 19 OE 18 B1 17 B2 16 B3 15 B4 14 B5 13 B6 12 B7 11 B8
- No internal connection
SN74CBTLV3245A LOW-VOLTAGE OCTAL FET BUS SWITCH
SCDS034M
- JULY 1997
- REVISED AUGUST 2005
- Latch-Up Performance Exceeds 250 m A Per JESD 17
- ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
RGY PACKAGE (TOP VIEW)
1 A1 2 A2 3 A3 4 A4 5 A5 6 A6 7 A7 8 A8 9
20 19 OE 18 B1 17 B2 16 B3 15 B4 14 B5 13 B6 12 B7
B8
- No internal connection
DESCRIPTION/ORDERING INFORMATION
The SN74CBTLV3245A provides eight bits of high-speed bus switching in a standard '245 device pinout. The low on-state resistance of the switch allows connections to be made with minimal propagation delay.
The device is organized as one 8-bit switch. When output enable (OE) is low, the 8-bit bus switch is on, and port A is connected to port B. When OE is high, the switch is open, and the high-impedance state exists between the two ports.
This device is fully specified for partial-power-down applications using Ioff. The Ioff feature ensures that damaging current will not backflow through the device when it is powered down. The device has isolation during power off.
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.
- 40°C to...