SN74CB3T3245,SN74CB3T3245,SN74CB3T3245DBQR,SN74CB3T3245DGVR,SN74CB3T3245DW,SN74CB3T3245DW

Part No.:
SN74CB3T3245,SN74CB3T3245,SN74CB3T3245DBQR,SN74CB3T3245DGVR,SN74CB3T3245DW,SN74CB3T3245DW
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Description:
8-BIT FET BUS SWITCH 2.5-V/3.3-V LOW-VOLTAGE BUS SWTCH WITH 5-V-TOLERANK LEVEL SHIFTER
File Size:
302 K
Page:
14 Pages
Logo:
Maker:
TI [ TEXAS INSTRUMENTS ]
PCB Prototype

July 16, 2018:

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SSM2166_08

PCB Datasheet:1PCB Datasheet:1
www.ti.com
SN74CB3T3245
8-BIT FET BUS SWITCH
2.5-V/3.3-V LOW-VOLTAGE WITH 5-V-TOLERANT LEVEL SHIFTER
SCDS136 – OCTOBER 2003 – REVISED MARCH 2005
FEATURES
Standard '245-Type Pinout
Output Voltage Translation Tracks V
CC
Supports Mixed-Mode Signal Operation on All
Data I/O Ports
– 5-V Input Down to 3.3-V Output Level Shift
With 3.3-V V
CC
– 5-V/3.3-V Input Down to 2.5-V Output Level
Shift With 2.5-V V
CC
5-V-Tolerant I/Os With Device Powered Up or
Powered Down
Bidirectional Data Flow With Near-Zero
Propagation Delay
Low ON-State Resistance (r
on
) Characteristics
(r
on
= 5
Typ)
Low Input/Output Capacitance Minimizes
Loading (C
io(OFF)
= 5 pF Typ)
Data and Control Inputs Provide Undershoot
Clamp Diodes
Low Power Consumption (I
CC
= 40
µA
Max)
V
CC
Operating Range From 2.3 V to 3.6 V
Data I/Os Support 0- to 5-V Signaling Levels
(0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V)
Control Inputs Can Be Driven by TTL or
5-V/3.3-V CMOS Outputs
I
off
Supports Partial-Power-Down Mode
Operation
Latch-Up Performance Exceeds 250 mA
Per JESD 17
ESD Performance Tested Per JESD 22
– 2000-V Human-Body Model (A114-B,
Class II)
– 1000-V Charged-Device Model (C101)
Supports Digital Applications: Level
Translation, PCI Interface, USB Interface,
Memory Interleaving, Bus Isolation
Ideal for Low-Power Portable Equipment
DBQ, DGV, DW, OR PW PACKAGE
(TOP VIEW)
NC
A1
A2
A3
A4
A5
A6
A7
A8
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CC
OE
B1
B2
B3
B4
B5
B6
B7
B8
NC − No internal connection
DESCRIPTION/ORDERING INFORMATION
The SN74CB3T3245 is a high-speed TTL-compatible FET bus switch with low ON-state resistance (r
on
), allowing
for minimal propagation delay. The device fully supports mixed-mode signal operation on all data I/O ports by
providing voltage translation that tracks V
CC
. The SN74CB3T3245 supports systems using 5-V TTL, 3.3-V
LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels (see Figure 1).
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 © 2003–2005, Texas Instruments Incorporated