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RD74VT1G245
Bus Transceiver with 3–state Output / Dual Supply Voltage Translator
REJ03D0494–0200 Rev.2.00 Apr. 01, 2005
Description
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 (@VCCA = 0 to 3.6 V) • A bus side input outputs VI/O (max) = 3.6 V (@VCCA = 0 V or Output off state) • B bus side input outputs VI/O (max) = 3.6 V (@VCCB = 0 V or Output off state) • High output current A bus side: ±2 mA (@VCCA = 1.2 V) B bus side: ±2 mA (@VCCB = 1.2 V) ±4 mA (@VCCA = 1.5±0.1 V) ±4 mA (@VCCB = 1.5±0.1 V) ±6 mA (@VCCA = 1.8±0.15 V) ±6 mA (@VCCB = 1.8±0.15 V) ±18 mA (@VCCA = 2.5±0.2 V) ±18 mA (@VCCB = 2.5±0.2 V) ±24 mA (@VCCA = 3.3±0.3 V) ±24 mA (@VCCB = 3.3±0.3 V) • Ordering Information
Part Name RD74VT1G245CLE Package Type WCSP–6 pin Package Code (Previous Code) SXBG0006KB–A (TBS–6AV) Package Abbreviation CL Taping Abbreviation (Quantity) E (3,000 pcs / reel)
Rev.2.00 Apr. 01, 2005 page 1 of 13
RD74VT1G245
Article Indication
Marking Year code Month code
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VYYM
Function Table
Input DIR L H H: High level L: Low level Operation B→A A→B
Pin Arrangement
0.9 mm Height 0.5 mm 0.5 mm pitch 0.23 mm 6–Ball (CL) GND
3
4
B
A
2
5
VCCB
1.4 mm
Pin#1 INDEX
DIR
1
6
VCCA
(Bottom view)
(Top view)
Rev.2.00 Apr. 01, 2005 page 2 of 13
RD74VT1G245
Logic Diagram
DIR
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A
B
Absolute Maximum Ratings
Item Supply voltage range Input voltage range *1 Input/output voltage range
*1, 2
Symbol VCCA, VCCB VI VI/O
Ratings –0.5 to 4.6 –0.5 to 4.6 –0.5 to VCCA+0.5 –0.5 to 4.6 –0.5 to VCCB+0.5 –0.5 to 4.6
Unit V V V DIR
Conditions
A port output: “H” or “L” A port output: “Z” or VCCA: OFF B port output: “H” or “L” B port output: “Z” or VCCB: OFF
Input clamp current Output clamp current Continuous output current Continuous output current VCC or GND Package Thermal impedance Storage temperature Notes:
IIK IOK IO ICCA, ICCB, IGND θja Tstg
–50 –50 50 ±50 ±100 123 –65 to 150
mA mA mA mA °C/W °C
VI < 0 VO < 0 VO > VCC+0.5
The absolute maximum ratings are values, which mu must not individually be exceeded, and furthermore, no two of which may be realized at the same time. 1. The input and output voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 2. This value is limited to 4.6 V maximum.
Rev.2.00 Apr. 01, 2005 page 3 of 13
RD74VT1G245
Recommended Operating Conditions
Item Supply voltage range Input/Output voltage Symbol VCCA VCCB VI VI/O Ratings 1.2 to 3.6 1.2 to 3.6 0 to 3.6 0 to VCCA 0 to 3.6 0 to VCCB 0 to 3.6 Output current IOHA –2 –4 –6 –18 –24 IOHB –2 –4 –6 –18 –24 IOLA 2 4 6 18 24 IOLB 2 4 6 18 24 Input transition rise or fall time Operation free-air temperature ∆t / ∆v Ta 10 –40 to 85 ns / V °C mA mA mA mA V V DIR Unit V
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Conditions
A port output: “H” or “L” A port output: “Z” or VCCA: OFF B port output: “H” or “L” B port output: “Z” or VCCB: OFF VCCA = 1.2 V VCCA = 1.5±0.1 V VCCA = 1.8±0.15 V VCCA = 2.5±0.2 V VCCA = 3.3±0.3 V VCCB = 1.2 V VCCB = 1.5±0.1 V VCCB = 1.8±0.15 V VCCB = 2.5±0.2 V VCCB = 3.3±0.3 V VCCA = 1.2 V VCCA = 1.5±0.1 V VCCA = 1.8±0.15 V VCCA = 2.5±0.2 V VCCA = 3.3±0.3 V VCCB = 1.2 V VCCB = 1.5±0.1 V VCCB = 1.8±0.15 V VCCB = 2.5±0.2 V VCCB = 3.3±0.3 V
Rev.2.00 Apr. 01, 2005 page 4 of 13
RD74VT1G245
Electrical Characteristics
Item Input voltage Symbol VIHA 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
*
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(Ta = −40 to 85°C)
VCCB (V) 1.2 to 3.6
*
VIHB
VILA
VILB
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
Output voltage
VOH
VOL
Input current Off state output current Output leakage current Quiescent supply current
IIN IOZ IOFF ICCA ICCB
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 3.6 0 1.2 to 3.6 1.2 to 3.6 3.6 3.6 3.3 3.3
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.