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參數(shù)資料
| 型號： | PI74FCT245TQEX |
| 廠商： | Pericom |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX OCTAL BIDIR 20QSOP |
| 標準包裝： | 3,000 |
| 系列： | 74FCT |
| 邏輯類型： | 收發(fā)器，非反相 |
| 元件數(shù)： | 1 |
| 每個元件的位元數(shù)： | 8 |
| 輸出電流高，低： | 15mA，64mA |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-SSOP（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 20-QSOP |
| 包裝： | 帶卷 (TR) |
1
PS2012E
08/08/06
PinConfiguration
Inputs
OE
T/R
Outputs
L
Bus B Data to Bus A
L
H
Bus A Data to Bus B
H
X
High Z State
1.
H = High Voltage Level, X = Don't Care, L = Low
Voltage Level, Z = High Impedance
TruthTable(1)
Pin Name
Description
OE
3-State Output Enable Inputs (Active LOW)
T/R
Transmit/Receive Input
A0-A7
Side A Inputs or 3-State Outputs
B0-B7
Side B Inputs or 3-State Outputs
GND
Ground
VCC
Power
Pin Description
Fast CMOS Octal Bidirectional Transceivers
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
PI74FCT245T
PI74FCT2245T (25
Ω
Ω Series)
Block Diagram
Description
Pericom Semiconductor’s PI74FCT245T and PI74FCT2245T are
8-bit wide octal buffer bidirectional transceivers designed for
asynchronous two-way communication between data buses. The
transmit/receive (T/R) input determines the direction of data flow
throughthebidirectionaltransceiver.Transmit(activeHIGH)enables
data from A ports to B ports, and receive (active LOW) from B ports
to A ports. The output enable (OE) input, when HIGH, disables both
A and B ports by placing them in Hi-Z condition.
PI74FCT2245T has a built-in 25-ohm series resistor on all outputs to
reduce noise because of reflections, thus eliminating the need for an
external terminating resistor.
Features
Pin compatible with bipolar FAST Series at a higher speed
and lower power consumption
25-ohm series resistor on all outputs (FCT2245Tonly)
TTL input and output levels
Low ground bounce outputs
Extremely low static power
Hysteresis on all inputs
Industrial operating temperature range: –40°C to +85°C
Packaging (Pb-free & Green Available):
– 20-pin 173-mil wide plastic TSSOP (L)
– 20-pin 300-mil wide plastic SOIC (S)
– 20-pin 209-mil wide plastic SSOP (H)
– 20-pin 150-mil wide plastic QSOP (Q)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
T/R
A0
A1
A2
A3
A4
A5
A6
A7
GND
Vcc
OE
B0
B1
B2
B3
B4
B5
B6
B7
A0
B0
OE
A1
B1
A2
B2
A3
B3
A4
B4
A5
B5
A6
B6
A7
B7
T/R
06-0207
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PI74FCT245TQX | 制造商:Pericom Semiconductor Corporation 功能描述:Bus XCVR Single 8-CH 3-ST 20-Pin QSOP T/R |
| PI74FCT245TS | 制造商:PERI 功能描述: |
| PI74FCT245TSA | 制造商:Pericom Semiconductor Corporation 功能描述:Bus Transceiver, Single, 8 Bit, 20 Pin, Plastic, SOP |
| PI74FCT245TSE | 功能描述:總線收發(fā)器 Octal Bidirectional Transceiver RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| PI74FCT245TSEX | 功能描述:總線收發(fā)器 Octal Bidirectional Transceiver RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
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