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TC7MZ138FK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC7MZ138FK
Low Voltage 3-to-8 Line Decoder with 5 V Tolerant Inputs and Outputs
The TC7MZ138FK is a high performance CMOS 3-to-8 decoder. Designed for use in 3.3 V systems, it achieves high speed operation while maintaining the CMOS low power dissipation. The device is designed for low-voltage (3.3 V) VCC applications, but it could be used to interface to 5 V supply environment for inputs. 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 = 2.0~3.6 V High speed operation: tpd = 6.0 ns (max) (VCC = 3.0~3.6 V) Output current: |IOH|/IOL = 24 mA (min) (VCC = 3.0 V) Latch-up performance: 500 mA Package: VSSOP (US16) Power down protection is provided on all inputs and outputs. Pin and function compatible with the 74 series (74AC/VHC/HC/F/ALS/LS etc.) 138 type.
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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TC7MZ138FK
Pin Assignment (top view)
A B C
G2A
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
VCC
Y0
Y1 Y2
Y3
G2B
G1 Y7 GND
Y4
Y5 Y6
IEC Logic Symbol
1 2 3 Bin/Oct 1 2 4 0 1 2 3 4 5 6 7 15 14 13 12 11 10 9 7 1 2 3 Dmux 0 2 0 G 7 0 1 2 3 4 5 6 7 15 14 13 12 11 10 9 7
A B C
Y0
Y1 Y2
Y3
A B C
Y0
Y1 Y2
Y3
G1 G2 A G2B
6 4 5
Y4
Y5 Y6
EN
Y7
G1 G2 A G2B
6 4 5
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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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
Y5 Y6
Data outputs
4 5 6
Y7
Enable inputs
G2B
G1
Maximum Ratings
Characteristics Supply voltage range 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 -0.5~7.0 -0.5~7.0 -0.5~7.0 (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 Conditions
Characteristics Supply voltage Input voltage Output voltage Symbol VCC VIN VOUT Rating 2.0~3.6 1.5~3.6 0~5.5 0~5.5 0~VCC 24 12 -40~85 0~10 (Note9) (Note5) (Note6) (Note7) (Note8) C ns/V mA (Note4) V V Unit V
Output current Operating temperature Input rise and fall time
IOH/IOL Topr dt/dv
Note4: Data retention only Note5: VCC = 0 V Note6: High or low state Note7: VCC = 3.0~3.6 V Note8: VCC = 2.7~3.0 V Note9: VIN = 0.8~2.0 V, VCC = 3.0 V
Electrical Characteristics DC Characteristics (Ta = -40~85C)
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 = 16 mA IOL = 24 mA Input leakage current Power off leakage current Quiescent supply current Increase in ICC per input IIN IOFF ICC ICC VIN = 0~5.5 V VIN/VOUT = 5.5 V VIN = VCC or GND VIN = 3.6~5.5 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 10.0 10.0 500 A A A V V Min Max Unit
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TC7MZ138FK
AC Characteristics (Ta = -40~85C)
Characteristics Propagation delay time (A, B, C- Y ) Propagation delay time (G1- Y ) Propagation delay time ( G2 - Y ) Output to output skew Symbol tpLH tpHL tpLH tpHL tpLH tpHL tosLH tosHL (Note10) Figure 1, Figure 2 Figure 1, Figure 2 Test Condition VCC (V) Figure 1, Figure 2 2.7 3.3 0.3 2.7 3.3 0.3 2.7 3.3 0.3 2.7 3.3 0.3 1.5 1.5 1.5 7.0 6.0 8.0 7.0 7.0 6.0 1.0 ns ns ns ns Min Max Unit
Note10: This parameter is guaranteed by design. (tosLH = |tpLHm - tpLHn|, tosHL = |tpHLm - tpHLn|)
Dynamic Switching Characteristics
(Ta = 25C, Input: tr = tf = 2.5 ns, CL = 50 pF, RL = 500 )
Characteristics Quiet output maximum dynamic Quiet output minimum dynamic VOL VOL Symbol VOLP |VOLV| Test Condition VCC (V) VIH = 3.3 V, VIL = 0 V VIH = 3.3 V, VIL = 0 V 3.3 3.3 0.8 0.8 V V Typ. Unit
Capacitive Characteristics (Ta = 25C)
Characteristics Input capacitance Output capacitance Power dissipation capacitance Symbol CIN COUT CPD fIN = 10 MHz Test Condition VCC (V) (Note11) 3.3 0 3.3 7 8 25 pF pF pF Typ. Unit
Note11: 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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AC Test Circuit
Output CL RL Measure
CL = 50 pF RL = 500
Figure 1 AC Waveform
tf Input 2.5 ns tr 2.5 ns 90% 1.5 V 10% 2.7 V
GND
VOH Output tpLH 1.5 V tpHL VOL
Figure 2
tpLH, tpHL
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Package Dimensions
Weight: 0.02 g (typ.)
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