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TC7MA138FK
Preliminary TOSHIBA CMOS Digital Integrated Circuit
Silicon Monolithic
TC7MA138FK
Low Voltage 3-to-8 Line Decoder with 3.6 V Tolerant Inputs and Outputs
The TC7MA138FK is a high performance CMOS 3-to-8 decoder. Designed for use in 1.8, 2.5 or 3.3 V systems, it achieves high speed operation while maintaining the CMOS low power dissipation. It is also designed with over voltage tolerant inputs and outputs up to 3.6 V. When the device is enabled, 3 binary select inputs (A, B and C) determine which one of the outputs ( Y0 - Y7 ) will go low. When enable input G1 is held low or either G2A or G2B is held high, decoding function is inhibited and all outputs go high. Weight: 0.02 g (typ.) G1, G2A and G2B inputs are provided to ease cascade connection and for use as an address decoder for memory systems. All inputs are equipped with protection circuits against static discharge.
Features
* * Low voltage operation: VCC = 1.8~3.6 V High speed operation: tpd = TBD (max) (VCC = 3.0~3.6 V) tpd = TBD (max) (VCC = 2.3~2.7 V) tpd = TBD (max) (VCC = 1.8 V) 3.6 V tolerant inputs and outputs. Output current: IOH/IOL = 24 mA (min) (VCC = 3.0 V) IOH/IOL = 18 mA (min) (VCC = 2.3 V) IOH/IOL = 6 mA (min) (VCC = 1.8 V) Latch-up performance: 300 mA ESD performance: Machine model > 200 V Human body model > 2000 V Package: VSSOP (US16) Power down protection is provided on all inputs and outputs.
* *
* * * *
000630EBA1
* TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc.. * The Toshiba products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These Toshiba products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of Toshiba products listed in this document shall be made at the customer's own risk. * The products described in this document are subject to the foreign exchange and foreign trade laws. * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. * The information contained herein is subject to change without notice.
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TC7MA138FK
Pin Assignment (top view)
A B C
G 2A G 2B
1 2 3 4 5 6 7 8 (top view)
16 15 14 13 12 11 10 9
VCC
Y0
Y1 Y2
Y3
G1 Y7 GND
Y4
Y5 Y6
IEC Logic Symbol
Bin/Oct A B C G1
G2A G2B
1 2 3 6 4 5
1 2 4 & EN
0 1 2 3 4 5 6 7
15 14 13 12 11 10 9 7
Y0
Dmux A B C G1
G2A G2B
Y1 Y2
Y3
1 2 3 6 4 5
0 G 2 &
0 7
Y4
Y5 Y6
Y7
0 1 2 3 4 5 6 7
15 14 13 12 11 10 9 7
Y0
Y1 Y2
Y3
Y4
Y5 Y6
Y7
Truth Table
Inputs Enable G1 L X X H H H H H H H H
G2 A
Outputs Select
Y0
Selected Output Y1 H H H H L H H H H H H Y2 H H H H H L H H H H H
Y3
Y4 H H H H H H H L H H H
Y5
Y6
Y7 H H H H H H H H H H L None None None
Y0
G 2B
C X X X L L L L H H H H
B X X X L L H H L L H H
A X X X L H L H L H L H H H H L H H H H H H H H H H H H H L H H H H H H H H H H H H L H H H H H H H H H H H L H
X H X L L L L L L L L
X X H L L L L L L L L
Y1 Y2
Y3
Y4
Y5 Y6
Y7
X: Don't care
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TC7MA138FK
System Diagram
15 14 A 1 13 12 Select inputs B 2 11 10 C 3 9 7
G2 A
Y0
Y1 Y2
Y3
Y4
Data outputs
Y5 Y6
Y7
4 5 6
Enable inputs
G2B
G1
Maximum Ratings
Characteristics Power supply voltage DC input voltage DC output voltage Input diode current Output diode current DC output current Power dissipation DC VCC/ground current Storage temperature Symbol VCC VIN VOUT IIK IOK IOUT PD ICC/IGND Tstg Rating -0.5~4.6 -0.5~4.6 -0.5~4.6 (Note1) Unit V V V mA (Note3) mA mA mW mA C
-0.5~VCC + 0.5 (Note2) -50 50 50 180 100 -65~150
Note1: VCC = 0 V Note2: High or low state. IOUT absolute maximum rating must be observed. Note3: VOUT < GND, VOUT > VCC
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Recommended Operating Range
Characteristics Supply voltage Input voltage Output voltage Symbol VCC VIN VOUT Rating 1.8~3.6 1.2~3.6 -0.3~3.6 0~3.6 0~VCC 24 Output current IOH/IOL 18 6 Operating temperature Input rise and fall time Topr dt/dv -40~85 0~10 (Note10) (Note5) (Note6) (Note7) (Note8) (Note9) C ns/V mA (Note4) V V Unit V
Note4: Data retention only Note5: VCC = 0 V Note6: High or low state Note7: VCC = 3.0~3.6 V Note8: VCC = 2.3~2.7 V Note9: VCC = 1.8 V Note10: VIN = 0.8~2.0 V, VCC = 3.0 V
Electrical Characteristics
< DC Characteristics (Ta = -40~85C, 2.7 V < VCC = 3.6 V)
Characteristics High level Low level Symbol VIH VIL Test Condition VCC (V) Input voltage IOH = -100 A High level VOH VIN = VIH or VIL IOH = -12 mA IOH = -18 mA Output voltage IOH = -24 mA IOL = 100 A Low level VOL VIN = VIH or VIL IOL = 12 mA IOL = 18 mA IOL = 24 mA Input leakage current Power off leakage current Quiescent supply current Increase in ICC per input IIN IOFF ICC ICC VIN = 0~3.6 V VIN, VOUT = 0~3.6 V VIN = VCC or GND VCC < VIN < 3.6 V = = VIH = VCC - 0.6 V 2.7~3.6 2.7~3.6 2.7~3.6 2.7 3.0 3.0 2.7~3.6 2.7 3.0 3.0 2.7~3.6 0 2.7~3.6 2.7~3.6 2.7~3.6 2.0 VCC - 0.2 2.2 2.4 2.2 0.8 0.2 0.4 0.4 0.55 5.0 10.0 20.0 20.0 750 A A A V V Min Max Unit
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< < DC Characteristics (Ta = -40~85C, 2.3 V = VCC = 2.7 V)
Characteristics High level Low level Symbol VIH VIL Test Condition VCC (V) Input voltage IOH = -100 A High level Output voltage VOH VIN = VIH or VIL IOH = -6 mA IOH = -12 mA IOH = -18 mA IOL = 100 A Low level VOL VIN = VIH or VIL IOL = 12 mA IOL = 18 mA Input leakage current Power off leakage current Quiescent supply current IIN IOFF ICC VIN = 0~3.6 V VIN, VOUT = 0~3.6 V VIN = VCC or GND VCC < VIN < 3.6 V = = 2.3~2.7 2.3~2.7 2.3~2.7 2.3 2.3 2.3 2.3~2.7 2.3 2.3 2.3~2.7 0 2.3~2.7 2.3~2.7 1.6 VCC - 0.2 2.0 1.8 1.7 0.7 0.2 0.4 0.6 5.0 10.0 20.0 20.0 A A A V V Min Max Unit
< DC Characteristics (Ta = -40~85C, 1.8 V = VCC < 2.3 V)
Characteristics Symbol Test Condition VCC (V) High level Input voltage Low level VIL IOH = -100 A IOH = -6 mA Low level Input leakage current Power off leakage current Quiescent supply current VOL IIN IOFF ICC VIN = VIH or VIL VIN = 0~3.6 V VIN, VOUT = 0~3.6 V VIN = VCC or GND VCC < VIN < 3.6 V = = IOL = 100 A IOL = 6 mA 1.8~2.3 1.8 1.8 1.8 1.8 1.8 0 1.8 1.8 VIH 1.8~2.3 0.7 x VCC VCC - 0.2 1.4 0.2 x VCC 0.2 0.3 5.0 10.0 20.0 20.0 A A A V V Min Max Unit
High level Output voltage
VOH
VIN = VIH or VIL
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TC7MA138FK
AC Characteristics (Ta = -40~85C, Input: tr = tf = 2.0 ns, CL = 30 pF, RL = 500 )
Characteristics Symbol Test Condition VCC (V) tpLH tpHL 1.8 Figure 1, Figure 2 2.5 0.2 3.3 0.3 1.8 Propagation delay time (G1, Y ) tpLH tpHL Figure 1, Figure 3 2.5 0.2 3.3 0.3 1.8 Propagation delay time ( G2 , Y ) tpLH tpHL Figure 1, Figure 3 2.5 0.2 3.3 0.3 1.0 0.8 0.6 1.0 0.8 0.6 1.0 0.8 0.6 TBD TBD TBD TBD TBD TBD TBD TBD TBD ns ns ns Min Max Unit
Propagation delay time (A, B, C- Y )
For CL = 50 pF, add approximately 300 ps to the AC maximum specification.
Dynamic Switching Characteristics (Ta = 25C, Input: tr = tf = 2.0 ns, CL = 30 pF)
Characteristics Symbol Test Condition VCC (V) VIH = 1.8 V, VIL = 0 V Quiet output maximum dynamic VOL VOLP VIH = 2.5 V, VIL = 0 V VIH = 3.3 V, VIL = 0 V VIH = 1.8 V, VIL = 0 V Quiet output minimum dynamic VOL VOLV VIH = 2.5 V, VIL = 0 V VIH = 3.3 V, VIL = 0 V VIH = 1.8 V, VIL = 0 V Quiet output minimum dynamic VOH VOHV VIH = 2.5 V, VIL = 0 V VIH = 3.3 V, VIL = 0 V (Note11) (Note11) (Note11) (Note11) (Note11) (Note11) (Note11) (Note11) (Note11) 1.8 2.5 3.3 1.8 2.5 3.3 1.8 2.5 3.3 0.25 0.6 0.8 -0.25 -0.6 -0.8 1.5 1.9 2.2 V V V Typ. Unit
Note11: This parameter is guaranteed by design.
Capacitive Characteristics (Ta = 25C)
Characteristics Input capacitance Power dissipation capacitance Symbol CIN CPD fIN = 10 MHz Test Condition VCC (V) (Note12) 1.8, 2.5, 3.3 1.8, 2.5, 3.3 6 20 pF pF Typ. Unit
Note12: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained by the equation: ICC (opr) = CPD VCC fIN + ICC
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TC7MA138FK
AC Test Circuit
Output CL RL Measure
CL = 30 pF RL = 500
Figure 1 AC Waveform
tf Input (A) 2.0 ns tr 2.0 ns 90% VM 10% VIH
Output (Y) tpLH, tpHL
VOH VM tpHL, tpLH VOL
Symbol VIH VM
VCC 3.3 0.3 V 2.7 V 1.5 V 2.5 0.2 V VCC VCC/2 1.8 V VCC VCC/2
Figure 2
tpLH, tpHL
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TC7MA138FK
Package Dimensions
Weight: 0.02 g (typ.)
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