UNISONIC TECHNOLOGIES CO., LTD U74AHCT1G126
SINGLE BUS BUFFER GATE WITH 3-STATE OUTPUT
3 2 1
CMOS IC
5
DESCRIPTION
The U74AHCT1G126 is a single bus buffer gate with 3-state output controlled by enable input (OE), When OE is LOW, the output is disabled.
2 1
4
SOT-25
3
5 4
FEATURES
* Operation Voltage Range: 4.5~5.5V * Low Power Dissipation: (10uA Max Icc) * Inputs are TTL-Voltage Compatible
SOT-353
*Pb-free plating product number: U74AHCT1G126L
ORDERING INFORMATION
Order Number Normal Lead Free Plating U74AHCT1G126-AF5-R U74AHCT1G126L-AF5-R U74AHCT1G126-AL5-R U74AHCT1G126L-AL5-R Package SOT-25 SOT-325 Packing Tape Reel Tape Reel
U74AHCT1G126L-AF5-R (1)Packing Type (2)Package Type (3)Lead Plating (1) R: Tape Reel (2) AF5: SOT-25, AL5: SOT-353 (3) L: Lead Free Plating, Blank: Pb/Sn
MARKING
3 2 U L6 4 5 1
Lead Plating
www.unisonic.com.tw Copyright © 2005 Unisonic Technologies Co., Ltd
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QW-R502-096,A
U74AHCT1G126
PIN CONFIGURATION
GND 3 A 2 OE 1
CMOS IC
4 Y
5 VCC
FUNCTION TABLE (each gate)
INPUT OE H H L A L H X OUTPUT Y L H Z
LOGIC DIAGRAM (positive logic)
1 2 4 Y OE A 1 2 OE 4
OE A
Y
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R502-096,A
U74AHCT1G126
ABSOLUTE MAXIMUM RATINGS (unless otherwise specified)(Note 1)
PARAMETER
CMOS IC
SYMBOL RATINGS UNIT Supply Voltage VCC -0.5~7 V Input Voltage VIN -0.5~7 V Output Voltage VOUT -0.5~VCC+0.5 V Input Clamp Current IIK -20 mA Output Clamp Current IOK ±20 mA Output Current IOUT ±25 mA VCC or GND Current ICC ±50 mA Storage Temperature TSTG -65 ~ +150 ℃ Note 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied.
RECOMMENDED OPERATING COMDITIONS
PARAMETER Supply Voltage nput Voltage Output Voltage nput Transition Rise or Fall Rate Operating Temperature SYMBOL CONDITIONS VCC VIN VOUT ∆t/∆v VCC=5.0±0.5V TA MIN 4.5 0 0 -40 MIN 2 4.4 3.94 TYP TYP MAX 5.5 5.5 VCC 20 85 MAX 0.8 4.5 0.1 0.36 ±0.1 ±0.25 1 1.35 4 10 10 UNIT V V V ns/V ℃
STATIC CHARACTERISTICS (TA=25℃)
PARAMETER SYMBOL TEST CONDITIONS High-Level VIH VCC=4.5V~5.5V Input Voltage VCC=4.5V~5.5V Low-Level VIL VCC=4.5V, IOH=-50µA High-Level VOH VCC=4.5V, IOH=-8mA Output Voltage VCC=4.5V, IOL=50µA Low-Level VOL VCC=4.5V, IOH=8mA Input Leakage Current II(LEAK) VCC=0V~5.5V, VIN=VCC or GND Output Current, OFF-state IOZ VCC=5.5V, VOUT=VCC or GND VCC=5.5V, VIN=VCC or GND Quiescent Supply Current IQ IOUT=0 Additional Quiescent Supply VCC=5.5V, One input at 3.4V, ∆ICC Current Other input at VCC or GND Input Capacitance CIN VCC=5V, VIN=VCC or GND Output Capacitance COUT VCC=5V, VOUT=VCC or GND SYMBOL tPLH Propagation delay from A to Y tPHL tPZH Turn-on time OE to Y tPZL tPHZ Turn-off time OE to Y tPLZ tPLH Propagation delay from A to Y tPHL tPZH Turn-on time OE to Y tPZL tPHZ Turn-off time OE to Y tPLZ OPERATING CHARACTERISTICS Power Dissipation Capacitance Cpd PARAMETER TEST CONDITIONS VCC =5V±0.5V, CL=15pF VCC =5V±0.5V, CL=15pF VCC =5V±0.5V, CL=15pF VCC =5V±0.5V, CL=50pF VCC =5V±0.5V, CL=50pF VCC =5V±0.5V, CL=50pF No load, f=1MHz, VCC=5V UNIT V V V V µA µA µA mA pF pF
DYNAMIC CHARACTERISTICS (TA=25℃, Input: tR, tF≤3ns; PRR≤1MHz)
MIN TYP 3.8 3.8 3.6 3.6 4.6 4.6 5.3 5.3 5.1 5.1 6.1 6.1 14 MAX 5.5 5.5 5.1 5.1 6.8 6.8 7.5 7.5 7.1 7.1 8.8 8.8 UNIT ns ns ns ns ns ns pF 3 of 5
QW-R502-096,A
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
U74AHCT1G126
TEST CIRCUIT AND WAVEFORMS
HIGH
CMOS IC
OE A Y
VIN
VOUT
CL
3V 1.5V VIN tPLH 1.5V tPHL GND
1/2 * VCC VOUT
1/2 * VCC
Note: CL includes probe and jig capacitance. Fig-1 Propagation delay from A to Y
TEST GND TPHZ /TPZH OE Vi A Y VCC TPLZ /T PZL 1KΩ RL Vo
Vo E
TEST TPHZ /TPZH VCC TPLZ /TPZL GND
CL
Turn-ON
Turn-OFF
Turn-ON 3V
VoE
1.5V
1.5V GND
tPHZ VOH-0.3V VOUT tPZH 1/2 * VCC
t PLZ VOUT VOL+0.3V
t PZL
1/2 * VCC
Fig-2 The turn-on and turn-off times.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R502-096,A
U74AHCT1G126
CMOS IC
UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 5
QW-R502-096,A
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