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PDF RD74VT1G245 Data sheet ( Hoja de datos )
| Número de pieza | RD74VT1G245 | |
| Descripción | Bus Transceiver with 3-state output / Dual Supply Voltage Translator | |
| Fabricantes | Renesas Technology | |
| Logotipo |  |
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RD74VT1G245
www.DataSheet4U.com
Bus Transceiver with 3–state Output /
Dual Supply Voltage Translator
Description
REJ03D0494–0200
Rev.2.00
Apr. 01, 2005
The RD74VT1G245 has one buffer in a 6 pin package. When DIR is high, data is transferred from the A inputs to the
B outputs, and when DIR is low, data is transferred from the B inputs to the A outputs. And this product has two
terminals (VCCA, VCCB), VCCA is connected with control input and A bus side VCCB is connected with B bus side. VCCA
and VCCB are isolated. The A port is designed to track VCCA, which accepts voltages from 1.2V to 3.6V, and the B port
is designed to track VCCB, which operation at 1.2V to 3.6V. Therefore, Bidirectional board voltage conversion is
possible. Low voltage and high-speed operation is suitable for the battery powered products (e.g., notebook computers),
and the low power consumption extends the battery life.
Features
• This product function as level shift transceiver that change VCCA input level to VCCB output level, VCCB input level to
VCCA output level by providing different supply voltage to VCCA and VCCB.
• Supply voltage range:
VCCA = 1.2 to 3.6 V
VCCB = 1.2 to 3.6 V
• Operating temperature range: −40 to +85°C
• Control input VI(max) = 3.6 V
• A bus side input outputs VI/O (max) = 3.6 V
• B bus side input outputs VI/O (max) = 3.6 V
• High output current
(@VCCA = 0 to 3.6 V)
(@VCCA = 0 V or Output off state)
(@VCCB = 0 V or Output off state)
A bus side: ±2 mA (@VCCA = 1.2 V)
±4 mA (@VCCA = 1.5±0.1 V)
±6 mA (@VCCA = 1.8±0.15 V)
±18 mA (@VCCA = 2.5±0.2 V)
±24 mA (@VCCA = 3.3±0.3 V)
• Ordering Information
B bus side:
±2 mA (@VCCB = 1.2 V)
±4 mA (@VCCB = 1.5±0.1 V)
±6 mA (@VCCB = 1.8±0.15 V)
±18 mA (@VCCB = 2.5±0.2 V)
±24 mA (@VCCB = 3.3±0.3 V)
Part Name
Package Type
Package Code
Package
Taping Abbreviation
(Previous Code)
Abbreviation
(Quantity)
RD74VT1G245CLE
WCSP–6 pin
SXBG0006KB–A
CL E (3,000 pcs / reel)
(TBS–6AV)
Rev.2.00 Apr. 01, 2005 page 1 of 13
1 page  
RD74VT1G245
Electrical Characteristics
www.DataSheet4U.com
Item
Input voltage
Symbol
VIHA
VIHB
VCCA (V) *
1.2
1.5±0.1
1.8±0.15
2.5±0.2
3.3±0.3
1.2 to 3.6
VILA 1.2
1.5±0.1
1.8±0.15
2.5±0.2
3.3±0.3
VILB 1.2 to 3.6
Output voltage VOH
VOL
Input current
IIN
1.2 to 3.6
1.2
1.5±0.1
1.8±0.15
2.5±0.2
3.3±0.3
1.2 to 3.6
1.2
1.5±0.1
1.8±0.15
2.5±0.2
3.3±0.3
3.6
Off state output
current
Output leakage
current
Quiescent
supply current
IOZ
IOFF
ICCA
ICCB
3.6
0
1.2 to 3.6
1.2 to 3.6
Increase in ICC
per input
∆ICCA
∆ICCB
3.6
3.6
Input
capacitance
Input/output
capacitance
CIN
CI/O
3.3
3.3
VCCB (V) *
1.2 to 3.6
1.2
1.5±0.1
1.8±0.15
2.5±0.2
3.3±0.3
1.2 to 3.6
1.2
1.5±0.1
1.8±0.15
2.5±0.2
3.3±0.3
1.2 to 3.6
1.2
1.5±0.1
1.8±0.15
2.5±0.2
3.3±0.3
1.2 to 3.6
1.2
1.5±0.1
1.8±0.15
2.5±0.2
3.3±0.3
3.6
Min
VCCA×0.75
VCCA×0.70
VCCA×0.65
1.6
2.0
VCCB×0.75
VCCB×0.70
VCCB×0.65
1.6
2.0
VCC−0.2
0.9
1.1
1.25
1.7
2.2
–1.5
3.6 –1.5
0
1.2 to 3.6
–3.0
1.2 to 3.6
–3.0
3.6
3.6
3.3
3.3
(Ta = −40 to 85°C)
Typ Max Unit Test conditions
V A port
Control input
V B port
VCCA×0.25 V A port
VCCA×0.30
Control input
VCCA×0.35
0.7
0.8
VCCB×0.25 V B port
VCCB×0.30
VCCB×0.35
0.7
0.8
V IOH = –100 µA
IOH = –2 mA
IOH = –4 mA
IOH = –6 mA
IOH = –18 mA
IOH = –24 mA
0.2 V IOL = 100 µA
0.3
IOL = 2 mA
0.3
IOL = 4 mA
0.3
IOL = 6 mA
0.6
IOL = 18 mA
0.55
IOL = 24 mA
1.5 µA VIN = GND or VCCA
control input
1.5 µA VIN = VIH or VIL
1.5 µA VIN, VOUT =
0 to 3.6 V
3.0 µA IO(A port) = 0
VIN = VCCB or GND
3.0
IO(B port) = 0
VIN = VCCA or GND
250 µA A port or control
VCCA–0.6 (1 input)
250
B port
VCCB–0.6 (1 input)
3.5 pF VIN = VCC or GND
6.0 pF VO = VCC or GND
Note: For conditions shown as Min or Max, use the appropriate values under recommended operating conditions.
Rev.2.00 Apr. 01, 2005 page 5 of 13
5 Page 
RD74VT1G245
Application Information
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Figure 1 is an example circuit of the RD74VT1G245 being used in a bidirectional logic level–shifting application.
VCC1
VCC2
VCC1
1
2
3
6
VCC2
5
4
SYSTEM–1
SYSTEM–2
Figure 1. Bidirectional Logic Level–Shifting Application
Pin Description
PIN NAME FUNCTION
DESCRIPTION
1 DIR DIR The GND (low–level) determines B–port to A–port direction
2
A
OUT
Output level depends on VCC1 voltage
3
GND
GND
Device GND
4 B IN Input threshold value depends on VCC2 voltage
5
VCCB
VCC2
SYSTEM–2 supply voltage (1.2V to 3.6V)
6
VCCA
VCC1
SYSTEM–1 supply voltage (1.2V to 3.6V)
Rev.2.00 Apr. 01, 2005 page 11 of 13
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet RD74VT1G245.PDF ] | |
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