參數(shù)資料
型號(hào)： SN74AVCH20T245KR
廠商： Texas Instruments, Inc.
英文描述： 20 BIT DUAL SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3 STATE OUTPUTS
中文描述： 20位雙電源總線收發(fā)器可配置電壓轉(zhuǎn)換和3態(tài)輸出
文件頁(yè)數(shù)： 1/19頁(yè)
文件大?。?/td> 439K
代理商： SN74AVCH20T245KR
SCES567D MAY 2004 REVISED NOVEMBER 2004
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Control Inputs V
IH
/V
IL
Levels are
Referenced to V
CCA
Voltage
V
CC
Isolation Feature If Either V
CC
Input
Is at GND, Both Ports Are in the
High-Impedance State
Overvoltage-Tolerant Inputs/Outputs Allow
Mixed-Voltage-Mode Data Communications
Fully Configurable Dual-Rail Design Allows
Each Port to Operate Over the Full 1.2-V to
3.6-V Power-Supply Range
I
off
Supports Partial-Power-Down Mode
Operation
I/Os Are 4.6-V Tolerant
Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors
Max Data Rates
380 Mbps (1.8-V to 3.3-V Translation)
260 Mbps (<1.8-V to 3.3-V Translation)
260 Mbps (Translate to 2.5 V)
210 Mbps (Translate to 1.8 V)
120 Mbps (Translate to 1.5 V)
100 Mbps (Translate to 1.2 V)
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
ESD Protection Exceeds JESD 22
2000-V Human-Body Model (A114-A)
200-V Machine Model (A115-A)
1000-V Charged-Device Model (C101)
description/ordering information
This 20-bit noninverting bus transceiver uses two separate configurable power-supply rails. The
SN74AVCH20T245 is optimized to operate with V
CCA
/V
CCB
set at 1.4 V to 3.6 V. It is operational with V
CCA
/V
CCB
as low as 1.2 V. The A port is designed to track V
CCA
. V
CCA
accepts any supply voltage from 1.2 V to 3.6 V. The
B port is designed to track V
CCB
. V
CCB
accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal
low-voltage bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
TSSOP DGG
Tape and reel
SN74AVCH20T245GR
AVCH20T245
40
°
C to 85
°
C
TVSOP DGV
Tape and reel
SN74AVCH20T245VR
WK245
VFBGA GQL
Tape and reel
SN74AVCH20T245KR
WK245
VFBGA ZQL (Pb-free)
74AVCH20T245ZQLR
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available
at www.ti.com/sc/package.
DGG OR DGV PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
1DIR
1B1
1B2
GND
1B3
1B4
V
CCB
1B5
1B6
1B7
GND
1B8
1B9
1B10
2B1
2B2
2B3
GND
2B4
2B5
2B6
V
CCB
2B7
2B8
GND
2B9
2B10
2DIR
1OE
1A1
1A2
GND
1A3
1A4
V
CCA
1A5
1A6
1A7
GND
1A8
1A9
1A10
2A1
2A2
2A3
GND
2A4
2A5
2A6
V
CCA
2A7
2A8
GND
2A9
2A10
2OE
Copyright
2004, Texas Instruments Incorporated
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.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SN74AVCH20T245VR 功能描述:轉(zhuǎn)換 - 電壓電平 20B DUAL SUPPLY Bus Transceiver RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時(shí)間:1.9 ns 電源電流:14 mA 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8
SN74AVCH24T245GRGR 功能描述:轉(zhuǎn)換 - 電壓電平 24B Dual-Supply Bus Trans RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時(shí)間:1.9 ns 電源電流:14 mA 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8
SN74AVCH24T245ZRGR 功能描述:轉(zhuǎn)換 - 電壓電平 24B Dual-Supply Bus Trans RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時(shí)間:1.9 ns 電源電流:14 mA 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8
SN74AVCH2T45DCTR 功能描述:轉(zhuǎn)換 - 電壓電平 DUALB DUAL SUPPLY Bus Transceiver RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時(shí)間:1.9 ns 電源電流:14 mA 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8
SN74AVCH2T45DCTT 功能描述:轉(zhuǎn)換 - 電壓電平 DUALB DUAL SUPPLY Bus Transceiver RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時(shí)間:1.9 ns 電源電流:14 mA 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8
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