FSTUD32450

更新时间： 2024-09-24 22:17:47

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		开关
页数	文件大小	规格书
13页	497K
描述
Configurable 4-Bit to 40-Bit Bus Switch with -2V Undershoot Protection and Selectable Level Shifting

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FSTUD32450 数据手册

August 2001

Revised July 2002

FSTUD32450

Configurable 4-Bit to 40-Bit Bus Switch with

−2V Undershoot Protection and Selectable Level Shifting

General Description

Features

I Undershoot protected to −2V (A and B Ports)

The Fairchild Universal Bus Switch FSTUD32450 provides

4-bit, 5-bit, 8-bit, 10-bit, 16-bit, 20-bit...40-bit of high-speed

CMOS TTL-compatible bus switching. The low On Resis-

tance of the switch allows inputs to be connected to out-

puts without adding propagation delay or generating

additional ground bounce noise.

I Voltage level shifting

I 4Ω switch connection between two ports

I Minimal propagation delay through the switch

I Low l_CC

The FSTUD32450 is designed to allow “customer” configu-

ration control of the enable connections. The device can be

organized as either a ten 4-bit, eight 5-bit, four 10-bit, two

20-bit or one 40-bit enabled bus switch. Also achievable

are 8-bit and 16-bit enabled configurations (see Functional

Description). The device's bit configuration is controlled

through select pin logic. (see Truth Table). When OE_xis

I Zero bounce in flow-through mode

I Control inputs compatible with TTL level

I See Applications Notes AN-5008 and AN-5021 for UHC

details

I Packaged in plastic Fine-Pitch Ball Grid Array (FBGA)

Applications Note

Select pins S₀, S₁, S₂, S₃, S₄and S₅are intended to be

LOW, Port A_xis connected to Port B_x. When OE_xis HIGH,

the switch is OPEN.

The A and B Ports are protected against undershoot to

support an extended range to 2.0V below ground.

Fairchild's integrated Undershoot Hardened Circuit

(UHC) senses undershoot at the I/O, and responds by

preventing voltage differentials from developing and turn-

ing the switch on.

used as static user configurable control pins. The AC per-

formance of these pins has not been characterized or

tested. Switching of these select pins during system opera-

tion may temporarily disrupt output logic states and/or

enable pin controls.

40-bit configuration can be achieved by connecting the

OE₁and the OE₆pins to together.

Another innovative device feature is the addition of a level

shifting select pin, “S₂and S₅”. When S₂and S₅are LOW,

the device behaves as a standard N-MOS switch. When S₂

and S₅are HIGH, a diode to V_CCis integrated into the cir-

cuit allowing for level shifting between 5V inputs and 3.3V

outputs.

Ordering Code:

Order Number

Package Number

Package Description

FSTUD32450G

(Note 1)(Note 2)

BGA114A

114-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide

Note 1: Ordering code “G” indicates Trays.

Note 2: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

UHC is a trademark of Fairchild Semiconductor Corporation.

DS500447

www.fairchildsemi.com

12 3 4 5 6 7...13

中文翻译

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与FSTUD32450相关器件

型号	品牌	获取价格	描述	数据表
FSTUD32450_06	FAIRCHILD	获取价格	Configurable 4-Bit to 40-Bit Bus Switch with -2V Undershoot Protection and Selectable Leve
FSTUD32450G	FAIRCHILD	获取价格	Configurable 4-Bit to 40-Bit Bus Switch with -2V Undershoot Protection and Selectable Leve
FSTUD32450G	ROCHESTER	获取价格	CBT/FST/QS/5C/B SERIES, QUAD 10-BIT DRIVER, TRUE OUTPUT, PBGA114, 5.50 MM, PLASTIC, MO-205
FSTUD32450GX	FAIRCHILD	获取价格	Configurable 4-Bit to 40-Bit Bus Switch
FSTUD32450GX	ROCHESTER	获取价格	CBT/FST/QS/5C/B SERIES, QUAD 10-BIT DRIVER, TRUE OUTPUT, PBGA114, 5.50 MM, PLASTIC, MO-205
FSTUD32450GX_NL	ROCHESTER	获取价格	CBT/FST/QS/5C/B SERIES, QUAD 10-BIT DRIVER, TRUE OUTPUT, PBGA114, 5.50 MM, PLASTIC, MO-205
FSTYC9055D	INTERSIL	获取价格	Radiation Hardened, SEGR Resistant P-Channel Power MOSFETs
FSTYC9055D1	INTERSIL	获取价格	Radiation Hardened, SEGR Resistant P-Channel Power MOSFETs
FSTYC9055D3	INTERSIL	获取价格	Radiation Hardened, SEGR Resistant P-Channel Power MOSFETs
FSTYC9055R	INTERSIL	获取价格	Radiation Hardened, SEGR Resistant P-Channel Power MOSFETs

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