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參數(shù)資料
| 型號： | 74LVC4245ADH |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 通用總線功能 |
| 英文描述： | Hex Inverting Buffers And Line Drivers With 3-State Outputs 16-TSSOP -40 to 85 |
| 中文描述： | LVC/LCX/Z SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO24 |
| 文件頁數(shù)： | 2/16頁 |
| 文件大小： | 90K |
| 代理商： | 74LVC4245ADH |
1999 Jun 15
2
Philips Semiconductors
Product specification
Octal dual supply translating transceiver; 3-state
74LVC4245A
FEATURES
In accordance with JEDEC
standard no. 8-1A
Wide supply voltage range:
3 V port: 1.5 to 3.6 V
5 V port: 1.5 to 5.5 V
CMOS low power consumption
Direct interface with TTL levels
Control inputs accept voltages up
to 5.5 V.
DESCRIPTION
The 74LVC4245A is a high-performance, low-power, low-voltage, Si-gate
CMOS device, superior to most advanced CMOS compatible TTL families.
The 74LVC4245A is an octal dual supply translating transceiver featuring
non-inverting 3-state bus compatible outputs in both send and receive
directions. It is designed to interface between a 3 and 5 V bus in a mixed 3/5 V
supply environment.
The 74LVC4245A features an output enable (OE) input for easy cascading and
a send/receive (DIR) input for direction control. (OE) controls the outputs so
that the buses are effectively isolated.
In suspend mode, when V
CCA
is zero, there will be no current flow from one
supply to the other supply. The A-outputs must be set 3-state and the voltage
on the A-bus must be smaller than V
diode
(typ. 0.7 V). V
CCA
≥
V
CCB
(except in
suspend mode).
QUICK REFERENCE DATA
GND = 0 V; T
amb
= 25
°
C; t
r
= t
f
≤
2.5 ns.
Note
1.
C
PD
is used to determine the dynamic power dissipation (P
D
in
μ
W).
P
D
= C
PD
×
V
CC2
×
f
i
+
Σ
(C
L
×
V
CC2
×
f
o
) where:
f
i
= input frequency in MHz;
f
o
= output frequency in MHz;
C
L
= output load capacitance in pF;
V
CC
= supply voltage in Volts;
Σ
(C
L
×
V
CC2
×
f
o
) = sum of the outputs.
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
t
PHL
/t
PLH
propagation delay
A
n
to B
n
B
n
to A
n
input/output capacitance
A port
A
n
to B
n
B
n
to A
n
B port
A
n
to B
n
B
n
to A
n
C
L
= 50 pF
V
CCA
= 5.0 V
V
CCB
= 3.3 V
4.0
4.0
10.0
ns
ns
pF
C
I/O
C
PDA
V
I
= GND to V
CC
; note 1
V
I
= GND to V
CC
; note 1
7.8
27.9
pF
pF
C
PDB
V
I
= GND to V
CC
; note 1
V
I
= GND to V
CC
; note 1
26
10.4
pF
pF
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| 74LVC4245AD-Q100J | 功能描述:Voltage Level Translator Bidirectional 1 Circuit 8 Channel 24-SO 制造商:nxp semiconductors 系列:汽車級，AEC-Q100，74LVC 包裝:帶卷（TR） 零件狀態(tài):有效 轉(zhuǎn)換器類型:電壓電平 通道類型:雙向 電路數(shù):1 每個電路的通道數(shù):8 電壓 - VCCA:1.5 V ~ 5.5 V 電壓?- VCCB:1.5 V ~ 3.6 V 輸入信號:- 輸出信號:- 輸出類型:三態(tài)，非反相 數(shù)據(jù)速率:- 工作溫度:-40°C ~ 125°C（TA） 特性:- 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商器件封裝:24-SO 標(biāo)準(zhǔn)包裝:1,000 |
| 74LVC4245AD-T | 制造商:NXP Semiconductors 功能描述:Bus XCVR Single 8-CH 3-ST 24-Pin SO T/R 制造商:NXP Semiconductors 功能描述:Voltage Level Translator 24-Pin SO T/R |
| 74LVC4245APW | 功能描述:總線收發(fā)器 XCVR 8BIT LVL SHIFTR 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 |
| 74LVC4245APW,112 | 功能描述:總線收發(fā)器 XCVR 8BIT LVL SHIFTR 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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