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參數(shù)資料
| 型號(hào)： | SN74ABT16657DLR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 總線收發(fā)器 |
| 英文描述： | ABT SERIES, DUAL 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO56 |
| 封裝： | 0.300 INCH, PLASTIC, SSOP-56 |
| 文件頁(yè)數(shù)： | 5/12頁(yè) |
| 文件大?。?/td> | 354K |
| 代理商： | SN74ABT16657DLR |
SN54ABT16657, SN74ABT16657
16-BIT TRANSCEIVERS WITH PARITY GENERATORS/CHECKERS
AND 3-STATE OUTPUTS
SCBS103B – FEBRUARY 1992 – REVISED JANUARY 1997
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
In the receive mode, after the 1B (or 2B) bus is polled to determine the number of high bits, the 1ERR (or 2ERR)
output logic level indicates whether or not the data to be received exhibits the correct parity sense. For example,
if 1ODD/EVEN is high (odd parity selected), 1PARITY is high, and there are three high bits on the 1B bus, then
1ERR is low, indicating a parity error.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN54ABT16657 is characterized for operation over the full military temperature range of –55
°C to 125°C.
The SN74ABT16657 is characterized for operation from –40
°C to 85°C.
FUNCTION TABLE
(each 8-bit section)
NUMBER OF A OR B
INPUTS
INPUT/OUTPUT
OUTPUTS
NUMBER OF A OR B
INPUTS THAT ARE HIGH
OE
T/R
ODD/EVEN
INPUT/OUTPUT
PARITY
ERR
OUTPUT MODE
L
H
Z
Transmit
L
HL
L
Z
Transmit
02468
L
LH
H
Receive
0, 2, 4, 6, 8
L
LH
L
Receive
L
LL
H
L
Receive
L
LL
L
H
Receive
L
H
L
Z
Transmit
L
HL
H
Z
Transmit
1357
L
LH
H
L
Receive
1, 3, 5, 7
L
LH
L
H
Receive
L
LL
H
Receive
L
LL
L
Receive
Don’t care
H
X
Z
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74ABT16657DLRG4 | 功能描述:總線收發(fā)器 16-Bit Transceiver RoHS:否 制造商:Fairchild Semiconductor 邏輯類(lèi)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(lèi)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(shí)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 |
| SN74ABT16657DRL | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74ABT16821 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:20-BIT BUS-INTERFACE FLIP-FLOPS WITH 3-STATE OUTPUTS |
| SN74ABT16821DGG | 制造商:TI 制造商全稱:Texas Instruments 功能描述:20-BIT BUS-INTERFACE FLIP-FLOPS WITH 3-STATE OUTPUTS |
| SN74ABT16821DGGR | 功能描述:觸發(fā)器 3 20bit Bus Int RoHS:否 制造商:Texas Instruments 電路數(shù)量:2 邏輯系列:SN74 邏輯類(lèi)型:D-Type Flip-Flop 極性:Inverting, Non-Inverting 輸入類(lèi)型:CMOS 輸出類(lèi)型: 傳播延遲時(shí)間:4.4 ns 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:X2SON-8 封裝:Reel |
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