SN74CBTLV3245A_10 Datasheet, PDF (1/18 Pages) Texas Instruments – LOW-VOLTAGE OCTAL FET BUS SWITCH

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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
• I_off 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 V_CC
19 OE
18 B1
17 B2
16 B3
15 B4
14 B5
13 B6
12 B7
11 B8
NC - No internal connection
SN74CBTLV3245A
LOW-VOLTAGE OCTAL FET BUS SWITCH
SCDS034M – JULY 1997 – REVISED AUGUST 2005
• Latch-Up Performance Exceeds 250 mA 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
10
20
19 OE
18 B1
17 B2
16 B3
15 B4
14 B5
13 B6
12 B7
11
NC - 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 I_off. The I_off 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 V_CC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
T_A
–40°C to 85°C
ORDERING INFORMATION
PACKAGE ⁽¹⁾
ORDERABLE PART NUMBER
QFN – RGY
Tape and reel
SN74CBTLV3245ARGYR
SOIC – DW
Tube
Tape and reel
SN74CBTLV3245ADW
SN74CBTLV3245ADWR
SSOP (QSOP) – DBQ
Tape and reel
SN74CBTLV3245ADBQR
TSSOP – PW
Tape and reel
SN74CBTLV3245APWR
TVSOP – DGV
Tape and reel
SN74CBTLV3245ADGVR
VFBGA – GQN
Tape and reel
SN74CBTLV3245AGQNR
VFBGA – ZQN
Tape and reel
SN74CBTLV3245AZQNR
TOP-SIDE MARKING
CL245A
CBTLV3245A
CBTLV3245A
CL245A
CL245A
CL245A
CL245A
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1997–2005, Texas Instruments Incorporated