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TC74LCX16374FT
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74LCX16374FT
Low-Voltage 16-Bit D-Type Flip-Flop with 5-V Tolerant Inputs and Outputs
The TC74LCX16374FT is a high-performance CMOS 16-bit D-type flip-flop. Designed for use in 2.5-V or 3.3-V systems, it achieves high-speed operation while maintaining the CMOS low power dissipation. The device is designed for low-voltage (2.5-V or 3.3-V) VCC applications, but it could be used to interface to 5-V supply environment for both inputs and outputs. This 16-bit D-type flip-flop is controlled by a clock input (CK) and an output enable input ( OE ) which are common to each byte. It can be used as two 8-bit flip-flops or one 16-bit flip-flop. When the OE input is high, the outputs are in a high-impedance state. All inputs are equipped with protection circuits against static discharge.
Weight: 0.25 g (typ.)
Features
* * * * * * Low-voltage operation: VCC = 2.0 to 3.6 V High-speed operation: tpd = 6.2 ns (max) (VCC = 3.0 to 3.6 V) Ouput current: |IOH|/IOL = 24 mA (min) (VCC = 3.0 V) Latch-up performance: -500 mA Package: TSSOP Power-down protection provided on all inputs and outputs
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TC74LCX16374FT
Pin Assignment (top view) IEC Logic Symbol
1 48 24 25 47 46 44 43 41 40 38 37 36 35 33 32 30 29 27 26
1OE 1Q1 1Q2 GND 1Q3 1Q4 VCC 1Q5 1Q6
1 2 3 4 5 6 7 8 9
48 47 46 45 44 43 42
1CK 1D1 1D2 GND
1OE
1CK
2OE
2CK 1D1 1D2 1D3 1D4 1D5 1D6 1D7 1D8 2D1 2D2 2D3 2D4 2D5 2D6 2D7 2D8
1EN C1 2EN C2 1D 1 2 3 5 6 8 9 11 12 2D 2 13 14 16 17 19 20 22 23 1Q1 1Q2 1Q3 1Q4 1Q5 1Q6 1Q7 1Q8 2Q1 2Q2 2Q3 2Q4 2Q5 2Q6 2Q7 2Q8
1D3 1D4 VCC 1D5 1D6 GND 1D7 1D8 2D1 2D2 GND 2D3 2D4 VCC 2D5 2D6 GND 2D7 2D8 2CK
41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
GND 10 1Q7 11 1Q8 12 2Q1 13 2Q2 14 GND 15 2Q3 16 2Q4 17 VCC 18 2Q5 19 2Q6 20 GND 21 2Q7 22 2Q8 23 2OE 24
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TC74LCX16374FT
Truth Table
Inputs Outputs 1D1-1D8 X X L H 1Q1-1Q8 Z Qn L H
1OE
H L L L
1CK X
Inputs
Outputs 2D1-2D8 X X L H 2Q1-2Q8 Z Qn L H
2OE
H L L L
2CK X
X: Don't care Z: High impedance Qn: No change
System Diagram
1D1 47 D 1D2 46 D 1D3 44 D 1D4 43 D 1D5 41 D 1D6 40 D 1D7 38 D 1D8 37 D
1CK
48
CK Q
CK Q
CK Q
CK Q
CK Q
CK Q
CK Q
CK Q
1OE
1 2 1Q1 2D1 36 D 2D2 35 D 3 1Q2 2D3 33 D 5 1Q3 2D4 32 D 6 1Q4 2D5 30 D 8 1Q5 2D6 29 D 9 1Q6 2D7 27 D 11 1Q7 2D8 26 D 12 1Q8
2CK
25
CK Q
CK Q
CK Q
CK Q
CK Q
CK Q
CK Q
CK Q
2OE
24 13 2Q1 14 2Q2 16 2Q3 17 2Q4 19 2Q5 20 2Q6 22 2Q7 23 2Q8
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TC74LCX16374FT
Absolute Maximum Ratings (Note 1)
Characteristics Power supply voltage Input voltage Output voltage Input diode current Output diode current DC output current Power dissipation DC VCC/ground current per supply pin Storage temperature Symbol VCC VIN VOUT IIK IOK IOUT PD ICC/IGND Tstg Rating
-0.5 to 6.0 -0.5 to 7.0 -0.5 to 7.0 (Note 2) -0.5 to VCC + 0.5 (Note 3) -50 50 50
Unit V V V mA (Note 4) mA mA mW mA C
400
100 -65 to 150
Note 1: Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or even destruction. Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum ratings and the operating ranges. Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook ("Handling Precautions"/"Derating Concept and Methods") and individual reliability data (i.e. reliability test report and estimated failure rate, etc). Note 2: Output in OFF state Note 3: High or low state. IOUT absolute maximum rating must be observed. Note 4: VOUT < GND, VOUT > VCC
Operating Ranges (Note 1)
Characteristics Power supply voltage Input voltage Output voltage Symbol VCC VIN VOUT Rating 2.0 to 3.6 1.5 to 3.6 (Note 2) 0 to 5.5 0 to 5.5 (Note 3) 0 to VCC (Note 4)
24
Unit V V V
(Note 5) (Note 6) (Note 7) C (Note 8) ns/V mA
Output current
IOH/IOL
12 8
Operating temperature Input rise and fall time
Topr dt/dv
-40 to 85
0 to 10
Note 1: The operating ranges must be maintained to ensure the normal operation of the device. Unused inputs must be tied to either VCC or GND. Note 2: Data retention only Note 3: Output in OFF state Note 4: High or low state Note 5: VCC = 3.0 to 3.6 V Note 6: VCC = 2.7 to 3.0 V Note 7: VCC = 2.3 to 2.7 V Note 8: VIN = 0.8 to 2.0 V, VCC = 3.0 V
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Electrical Characteristics DC Characteristics (Ta = -40 to 85C)
Characteristics Symbol Test Condition VCC (V) 2.3 to 2.7 2.7 to 3.6 2.3 to 2.7 2.7 to 3.6 IOH = -100 A IOH = -8 mA IOH = -12 mA IOH = -18 mA Output voltage IOH = -24 mA IOL = 100 A IOL = 8 mA L-level VOL VIN = VIH or VIL IOL = 12 mA IOL = 16 mA IOL = 24 mA Input leakage current 3-state output OFF state current Power-off leakage current Quiescent supply current Increase in Icc per input IIN IOZ IOFF ICC
ICC
Min 1.7 2.0

Max

Unit
H-level Input voltage L-level
VIH
VIL
0.7 0.8

V
2.3 to 3.6 2.3 2.7 3.0 3.0 2.3 to 3.6 2.3 2.7 3.0 3.0 2.3 to 3.6 2.3 to 3.6 0 2.3 to 3.6 2.3 to 3.6 2.3 to 3.6
VCC - 0.2 1.8 2.2 2.4 2.2

H-level
VOH
VIN = VIH or VIL

V
0.2 0.6 0.4 0.4 0.55
5.0 5.0 A A A
VIN = 0 to 5.5 V VIN = VIH or VIL VOUT = 0 to 5.5 V VIN/VOUT = 5.5 V VIN = VCC or GND VIN/VOUT = 3.6 to 5.5 V VIH = VCC - 0.6 V
10.0 20.0
20.0
A
500
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TC74LCX16374FT
AC Characteristics (Ta = -40 to 85C)
Characteristics Symbol Test Condition VCC (V) 2.5 0.2 Maximum clock frequency fmax Figure 1, Figure 2 2.7 3.3 0.3 Propagation delay time (CK-Q) tpLH tpHL 2.5 0.2 Figure 1, Figure 2 2.7 3.3 0.3 2.5 0.2 Figure 1, Figure 3 2.7 3.3 0.3 2.5 0.2 Figure 1, Figure 3 2.7 3.3 0.3 2.5 0.2 Figure 1, Figure 2 2.7 3.3 0.3 2.5 0.2 Minimum setup time ts Figure 1, Figure 2 2.7 3.3 0.3 2.5 0.2 Minimum hold time th Figure 1, Figure 2 2.7 3.3 0.3 tosLH tosHL 2.5 0.2 (Note) 2.7 3.3 0.3 CL(pF) 30 50 50 30 50 50 30 50 50 30 50 50 30 50 50 30 50 50 30 50 50 30 50 50 Min

Max

Unit
MHz
170 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 3.5 3.0 3.0 3.0 2.5 2.5 2.0 1.5 1.5

7.4 6.5 6.2 7.9 6.3 6.1 7.2 6.2 6.0

ns
3-state output enable time
tpZL tpZH
ns
3-state output disable time
tpLZ tpHZ
ns
Minimum pulse width (CK)
tw (H) tw (L)
ns
ns
ns
Output to output skew
ns
1.0
Note:
Parameter guaranteed by design. (tosLH = |tpLHm - tpLHn|, tosHL = |tpHLm - tpHLn|)
Dynamic Switching Characteristics
(Ta = 25C, input: tr = tf = 2.5 ns, RL = 500 )
Characteristics Quiet output maximum dynamic VOL Quiet output minimum dynamic VOL Symbol Test Condition VIH = 2.5 V, VIL = 0 V, CL =30pF VIH = 3.3 V, VIL = 0 V, CL =50pF VIH = 2.5 V, VIL = 0 V, CL =30pF VIH = 3.3 V, VIL = 0 V, CL =50pF VCC (V) 2.5 3.3 2.5 3.3 Typ. 0.6 0.8 0.6 0.8 Unit
VOLP
V
|VOLV|
V
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TC74LCX16374FT
Capacitive Characteristics (Ta = 25C)
Characteristics Input capacitance Output capacitance Power dissipation capacitance Symbol CIN COUT CPD fIN = 10 MHz Test Condition

VCC (V) 3.3 3.3 (Note) 3.3
Typ. 7 8 25
Unit pF pF pF
Note:
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) = CPDVCCfIN + ICC/16 (per bit)
AC Test Circuit
Switch
RL
6.0 V or VCC x 2 Open GND Measure
Parameter tpLH, tpHL tpLZ, tpZL tpHZ, tpZH 6.0 V VCC x 2
Switch Open @VCC = 3.3 0.3 V @VCC = 2.5 0.2 V GND
Output
CL RL
RL = 500
Figure 1
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TC74LCX16374FT
AC Waveform
tr 2.5 ns Input (CK)
tf 2.5 ns VIH GND tr 2.5 ns tf 2.5 ns 90% VM 10% ts (H) th (H) ts (L) th (L) tw (H) tw (L) VIH GND VOH VM tpHL tpLH VOL
90% VM 10%
Input (D)
Output (Q)
Figure 2 tpLH, tpHL, tw, ts, th
tr 2.5 ns Output Enable ( OE ) tpLZ Output (Q) Low to Off to Low tpHZ Output (Q) High to Off to High Outputs enabled
tf 2.5 ns 90% VM 10% tpZL 3.0 V or Vcc VM VX tpZH VOL VOH VM GND Outputs disabled Outputs enabled VIH GND
VY
Figure 3 tpLZ, tpHZ, tpZL, tpZH
Symbol VIH VM VX VY
VCC 3.3 0.3 V 2.7 V 1.5 V VOL + 0.3 V VOH - 0.3 V 2.7 V 2.7 V 1.5 V VOL + 0.3 V VOH - 0.3 V 2.5 0.2 V VCC VCC/2 VOL + 0.15 V VOH - 0.15 V
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Package Dimensions
Weight: 0.25 g (typ.)
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RESTRICTIONS ON PRODUCT USE
* The information contained herein is subject to change without notice.
20070701-EN GENERAL
* 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 his document shall be made at the customer's own risk. * The products described in this document shall not be used or embedded to any downstream products of which manufacture, use and/or sale are prohibited under any applicable laws and regulations. * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any patents or other rights of TOSHIBA or the third parties. * Please contact your sales representative for product-by-product details in this document regarding RoHS compatibility. Please use these products in this document in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances. Toshiba assumes no liability for damage or losses occurring as a result of noncompliance with applicable laws and regulations.
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2007-10-19

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