参数资料
型号: SN74CB3T3245PWG4
厂商: Texas Instruments
文件页数: 1/21页
文件大小: 0K
描述: IC FET BUS SWITCH SGL 20TSSOP
标准包装: 70
系列: 74CB
类型: FET 总线开关
电路: 8 x 1:1
独立电路: 1
输出电流高,低: 32mA,64mA
电压电源: 单电源
电源电压: 2.3 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-TSSOP
包装: 管件
DBQ, DGV, DW, OR PW PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
NC
A1
A2
A3
A4
A5
A6
A7
A8
GND
VCC
OE
B1
B2
B3
B4
B5
B6
B7
B8
NC No internal connection
SCDS136A – OCTOBER 2003 – REVISED AUGUST 2012
8-BIT FET BUS SWITCH
2.5-V/3.3-V LOW-VOLTAGE WITH 5-V-TOLERANT LEVEL SHIFTER
Check for Samples: SN74CB3T3245
1
FEATURES
Low Power Consumption (ICC = 40 μA Max)
VCC Operating Range From 2.3 V to 3.6 V
Standard '245-Type Pinout
Data I/Os Support 0- to 5-V Signaling Levels
Output Voltage Translation Tracks VCC
(0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V)
Supports Mixed-Mode Signal Operation on All
Control Inputs Can Be Driven by TTL or 5-
Data I/O Ports
V/3.3-V CMOS Outputs
5-V Input Down to 3.3-V Output Level Shift
Ioff Supports Partial-Power-Down Mode
With 3.3-V VCC
Operation
5-V/3.3-V Input Down to 2.5-V Output Level
Latch-Up Performance Exceeds 250 mA
Shift With 2.5-V VCC
Per JESD 17
5-V-Tolerant I/Os With Device Powered Up or
ESD Performance Tested Per JESD 22
Powered Down
2000-V Human-Body Model (A114-B,
Bidirectional Data Flow With Near-Zero
Class II)
Propagation Delay
1000-V Charged-Device Model (C101)
Low ON-State Resistance (ron) Characteristics
(ron = 5 Typ)
Supports Digital Applications: Level
Translation, PCI Interface, USB Interface,
Low Input/Output Capacitance Minimizes
Memory Interleaving, Bus Isolation
Loading (Cio(OFF) = 5 pF Typ)
Ideal for Low-Power Portable Equipment
Data and Control Inputs Provide Undershoot
Clamp Diodes
DESCRIPTION/ORDERING INFORMATION
The SN74CB3T3245 is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron), 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 VCC. 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).
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.
Copyright 2003–2012, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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