參數(shù)資料
型號(hào): LTC4315CDE#PBF
廠商: Linear Technology
文件頁數(shù): 7/20頁
文件大?。?/td> 0K
描述: IC 2WIRE BUS BUFFER 12DFN
標(biāo)準(zhǔn)包裝: 91
類型: 2線總線緩沖器
Tx/Rx類型: I²C Logic
電容 - 輸入: 10pF
電源電壓: 2.9 V ~ 5.5 V
電流 - 電源: 8.1mA
安裝類型: 表面貼裝
封裝/外殼: 12-WFDFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 12-DFN(4x3)
包裝: 管件
LTC4315
15
4315f
APPLICATIONS INFORMATION
from a live backplane. The features mentioned previously
provide noise immunity and allow timing specifications to
be met for a wide range of backplane loading conditions.
In the 6 × 4 radial configuration shown in Figure 9, the
LTC4314s on the shelf managers and the LTC4315s on
the FRUs drive the large backplane capacitance while the
I2C slave devices on the FRUs only drive the small input
capacitance of the LTC4315. The LTC4314s on only one
of the shelf managers are enabled at a given time. All the
benefits provided by the LTC4315 in Figure 8 apply to
Figure 9 as well.
Cascading and Interoperability with Other LTC Buffers
and Non-Compliant I2C Devices
Multiple LTC4315s can be cascaded or the LTC4315 can be
cascaded with other LTC bus buffers. Cascades often exist
in large I2C systems, where multiple I/O cards having bus
buffers connect to a common backplane bus. Two issues
need to be considered when using such cascades—the
additive nature of the buffer logic low offset voltages and the
impact of the RTA-buffer interaction on the noise margin.
Figure 9. LTC4315s Used in a Radially Connected Telecommunications System in a 6 × 4 Arrangement. Only the
Clock Path Is Shown for Simplicity. The Data Pathway Is Identical.
SHELF MANAGER #1
IPMB-A(X24)
IPMB-B(X24)
SCL1
SCL24
SCL1
SCL24
3.3V
R2
10k
LTC4314#1
VCC
VCC2
SCLOUT1
SCLOUT2
SCLOUT3
SCLOUT4
SCLIN
ENABLE1
ENABLE2
ENABLE3
ENABLE4
ACC
ENABLE1A
ENABLE2A
ENABLE3A
ENABLE4A
ENABLE21A
ENABLE22A
ENABLE23A
ENABLE24A
R1
10k
μP
3.3V
IPMB-B DETAILS (NOT SHOWN) ARE IDENTICAL TO IPMB-A
IPMB-B
R5
10k
LTC4314#6
VCC
VCC2
SCLOUT1
SCLOUT2
SCLOUT3
SCLOUT4
SCLIN
ENABLE1
ENABLE2
ENABLE3
ENABLE4
ACC
3.3V
4315 F09
BACKPLANE
IPMB-B
SCL24
IPMB-A
SCL1
IPMB-A
SCL24
IPMB-B
SCL1
FRU #1
LTC4315
I2C
DEVICE
3.3V
SCLOUT
VCC2
VCC
SCLIN
ACC
R3
10k
R4
10k
LTC4315
3.3V
SCLOUT
VCC2
VCC
SCLIN
ACC
FRU #24
LTC4315
I2C
DEVICE
3.3V
SCLOUT
VCC2
VCC
SCLIN
ACC
R6
10k
R7
10k
LTC4315
3.3V
SCLOUT
VCC2
VCC
SCLIN
ACC
SHELF MANAGER #2
IDENTICAL TO SHELF MANAGER #1
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LTC4315CMS#PBF 功能描述:IC 2WIRE BUS BUFFER 12MSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 信號(hào)緩沖器,中繼器,分配器 系列:- 標(biāo)準(zhǔn)包裝:160 系列:- 類型:轉(zhuǎn)發(fā)器 Tx/Rx類型:以太網(wǎng) 延遲時(shí)間:- 電容 - 輸入:- 電源電壓:2.37 V ~ 2.63 V 電流 - 電源:60mA 安裝類型:表面貼裝 封裝/外殼:64-TQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-TQFP-EP(10x10) 包裝:托盤 其它名稱:Q5134101
LTC4315CMS#TRPBF 功能描述:IC 2WIRE BUS BUFFER 12MSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 信號(hào)緩沖器,中繼器,分配器 系列:- 標(biāo)準(zhǔn)包裝:160 系列:- 類型:轉(zhuǎn)發(fā)器 Tx/Rx類型:以太網(wǎng) 延遲時(shí)間:- 電容 - 輸入:- 電源電壓:2.37 V ~ 2.63 V 電流 - 電源:60mA 安裝類型:表面貼裝 封裝/外殼:64-TQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-TQFP-EP(10x10) 包裝:托盤 其它名稱:Q5134101
LTC4315IDE#PBF 功能描述:IC 2WIRE BUS BUFFER 12DFN RoHS:是 類別:集成電路 (IC) >> 接口 - 信號(hào)緩沖器,中繼器,分配器 系列:- 標(biāo)準(zhǔn)包裝:160 系列:- 類型:轉(zhuǎn)發(fā)器 Tx/Rx類型:以太網(wǎng) 延遲時(shí)間:- 電容 - 輸入:- 電源電壓:2.37 V ~ 2.63 V 電流 - 電源:60mA 安裝類型:表面貼裝 封裝/外殼:64-TQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-TQFP-EP(10x10) 包裝:托盤 其它名稱:Q5134101
LTC4315IDE#TRPBF 功能描述:IC 2WIRE BUS BUFFER 12DFN RoHS:是 類別:集成電路 (IC) >> 接口 - 信號(hào)緩沖器,中繼器,分配器 系列:- 標(biāo)準(zhǔn)包裝:160 系列:- 類型:轉(zhuǎn)發(fā)器 Tx/Rx類型:以太網(wǎng) 延遲時(shí)間:- 電容 - 輸入:- 電源電壓:2.37 V ~ 2.63 V 電流 - 電源:60mA 安裝類型:表面貼裝 封裝/外殼:64-TQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-TQFP-EP(10x10) 包裝:托盤 其它名稱:Q5134101
LTC4315IMS#PBF 功能描述:IC 2WIRE BUS BUFFER 12MSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 信號(hào)緩沖器,中繼器,分配器 系列:- 標(biāo)準(zhǔn)包裝:160 系列:- 類型:轉(zhuǎn)發(fā)器 Tx/Rx類型:以太網(wǎng) 延遲時(shí)間:- 電容 - 輸入:- 電源電壓:2.37 V ~ 2.63 V 電流 - 電源:60mA 安裝類型:表面貼裝 封裝/外殼:64-TQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-TQFP-EP(10x10) 包裝:托盤 其它名稱:Q5134101