TC74LCX16373FT TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74LCX16373FT Low-Voltage 16-Bit D-Type Latch with 5-V Tolerant Inputs and Outputs The TC74LCX16373FT is a high-performance CMOS 16-bit D-type latch. 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 latch is controlled by a latch enable input (LE) and an output enable input (OE) which are common to each byte. It can be used as two 8-bit latches or one 16-bit latch. 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 = 5.4 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 (thin shrink small outline package) * Power-down protection provided on all inputs and outputs 1 2002-10-1 TC74LCX16373FT Pin Assignment (top view) 1OE 1 IEC Logic Symbol 48 1LE 1OE 1LE 2OE 2LE 1Q1 2 47 1D1 1Q2 3 46 1D2 GND 4 45 GND 1Q3 5 44 1D3 1Q4 6 43 1D4 VCC 7 42 VCC 1Q5 8 41 1D5 1Q6 9 40 1D6 GND 10 39 GND 1Q7 11 38 1D7 1Q8 12 37 1D8 2Q1 13 36 2D1 2Q2 14 35 2D2 GND 15 34 GND 2Q3 16 33 2D3 2Q4 17 32 2D4 VCC 18 31 VCC 2Q5 19 30 2D5 2Q6 20 29 2D6 GND 21 28 GND 2Q7 22 27 2D7 2Q8 23 26 2D8 24 25 2LE 2OE 1D1 1D2 1D3 1D4 1D5 1D6 1D7 1D8 2D1 2D2 2D3 2D4 2D5 2D6 2D7 2D8 2 1 48 24 25 47 46 44 43 41 40 38 37 36 35 33 32 30 29 27 26 1EN C3 2EN C4 3D 1 4D 2 2 3 5 6 8 9 11 12 13 14 16 17 19 20 22 23 1Q1 1Q2 1Q3 1Q4 1Q5 1Q6 1Q7 1Q8 2Q1 2Q2 2Q3 2Q4 2Q5 2Q6 2Q7 2Q8 2002-10-1 TC74LCX16373FT Truth Table Inputs Outputs 1OE 1LE 1D1-1D8 1Q1-1Q8 H X X Z L L X Qn L H L L L H H H Inputs Outputs 2OE 2LE 2D1-2D8 2Q1-2Q8 H X X Z L L X Qn L H L L L H H H X: Don't care Z: High impedance Qn: Q outputs are latched at the time when the LE input is taken to a low logic level System Diagram 1D2 46 1D1 47 1LE 1OE 2OE 1D4 43 1D5 41 1D6 40 1D7 38 1D8 37 D D D D D D D D LE Q LE Q LE Q LE Q LE Q LE Q LE Q LE Q 2 3 5 6 8 9 1Q1 1Q2 1Q3 1Q4 1Q5 1Q6 1Q7 2D2 35 2D3 33 2D4 32 2D5 30 2D6 29 2D7 27 2D8 26 48 1 2D1 36 2LE 1D3 44 11 12 1Q8 D D D D D D D D LE Q LE Q LE Q LE Q LE Q LE Q LE Q LE Q 25 24 13 2Q1 14 2Q2 16 17 2Q3 2Q4 3 19 2Q5 20 2Q6 22 2Q7 23 2Q8 2002-10-1 TC74LCX16373FT Maximum Ratings Characteristics Symbol Rating Unit Power supply voltage VCC -0.5 to 6.0 V Input voltage VIN -0.5 to 7.0 V Output voltage VOUT -0.5 to 7.0 (Note 1) -0.5 to VCC + 0.5 (Note 2) V Input diode current IIK -50 Output diode current IOK 50 DC output current IOUT 50 mA Power dissipation PD 400 mW ICC/IGND 100 mA Tstg -65 to 150 C DC VCC/ground current per supply pin Storage temperature mA (Note 3) mA Note 1: Output in OFF state Note 2: High or low state. IOUT absolute maximum rating must be observed. Note 3: VOUT < GND, VOUT > VCC Recommended Operating Conditions Characteristics Power supply voltage Symbol VCC Input voltage Rating Unit 2.0 to 3.6 V 1.5 to 3.6 (Note 4) VIN 0 to 5.5 V 0 to 5.5 (Note 5) Output voltage Output current V VOUT 0 to VCC (Note 6) IOH/IOL Operating temperature Topr Input rise and fall time dt/dv 24 (Note 7) 12 (Note 8) 8 (Note 9) -40 to 85 0 to 10 (Note 10) mA C ns/V Note 4: Data retention only Note 5: Output in OFF state Note 6: High or low state Note 7: VCC = 3.0 to 3.6 V Note 8: VCC = 2.7 to 3.0 V Note 9: VCC = 2.3 to 2.7 V Note 10: VIN = 0.8 to 2.0 V, VCC = 3.0 V 4 2002-10-1 TC74LCX16373FT Electrical Characteristics DC Characteristics (Ta = -40 to 85C) Characteristics Symbol Test Condition Min Max Unit 2.3 to 2.7 1.7 3/4 2.7 to 3.6 2.0 3/4 2.3 to 2.7 3/4 0.7 2.7 to 3.6 3/4 0.8 2.3 to 3.6 VCC - 0.2 3/4 IOH = -8 mA 2.3 1.8 3/4 IOH = -12 mA 2.7 2.2 IOH = -18 mA 3.0 2.4 3/4 IOH = -24 mA 3.0 2.2 3/4 IOL = 100 mA 2.3 to 3.6 3/4 0.2 IOL = 8 mA 2.3 3/4 0.6 IOL = 12 mA 2.7 3/4 0.4 IOL = 16 mA 3.0 3/4 0.4 IOL = 24 mA 3.0 3/4 0.55 2.3 to 3.6 3/4 5.0 mA 2.3 to 3.6 3/4 5.0 mA VIN/VOUT = 5.5 V 0 3/4 10.0 mA VIN = VCC or GND 2.3 to 3.6 3/4 20.0 VIN/VOUT = 3.6 to 5.5 V 2.3 to 3.6 3/4 20.0 VIH = VCC - 0.6 V 2.3 to 3.6 3/4 500 VCC (V) H-level 3/4 VIH Input voltage L-level 3/4 VIL IOH = -100 mA H-level VOH VIN = VIH or VIL Output voltage L-level VOL Input leakage current IIN 3-state output OFF state current IOZ Power-off leakage current IOFF Quiescent supply current ICC Increase in Icc per input DICC VIN = VIH or VIL VIN = 0 to 5.5 V VIN = VIH or VIL VOUT = 0 to 5.5 V 5 V V mA 2002-10-1 TC74LCX16373FT AC Characteristics (Ta = -40 to 85C) Characteristics Propagation delay time (D-Q) Symbol tpLH Figure 1, Figure 2 tpHL Propagation delay time tpLH (LE-Q) tpHL 3-state output enable time Test Condition tpZL Figure 1, Figure 2 Figure 1, Figure 3 tpZH 3-state output disable time tpLZ Figure 1, Figure 3 tpHZ Minimum pulse width (LE) Minimum setup time Minimum hold time Output to output skew tw (H) ts th Figure 1, Figure 2 Figure 1, Figure 2 Figure 1, Figure 2 tosLH (Note 11) tosHL Min Max 30 1.5 6.5 2.7 50 1.5 5.9 3.3 0.3 50 1.5 5.4 2.5 0.2 30 1.5 6.6 2.7 50 1.5 6.4 3.3 0.3 50 1.5 5.5 2.5 0.2 30 1.5 7.9 2.7 50 1.5 6.5 3.3 0.3 50 1.5 6.1 2.5 0.2 30 1.5 7.2 2.7 50 1.5 6.3 3.3 0.3 50 1.5 6.0 2.5 0.2 30 3.5 3/4 2.7 50 3.0 3/4 3.3 0.3 50 3.0 3/4 2.5 0.2 30 3.0 3/4 2.7 50 2.5 3/4 3.3 0.3 50 2.5 3/4 2.5 0.2 30 2.0 3/4 2.7 50 1.5 3/4 3.3 0.3 50 1.5 3/4 2.5 0.2 30 3/4 3/4 2.7 50 3/4 3/4 3.3 0.3 50 3/4 1.0 VCC (V) CL(pF) 2.5 0.2 Unit ns ns ns ns ns ns ns ns Note 11: Parameter guaranteed by design. (tosLH = |tpLHm - tpLHn|, tosHL = |tpHLm - tpHLn|) Dynamic Switching Characteristics (Ta = 25C, input: tr = tf = 2.5 ns, RL = 500 W) Characteristics Symbol Test Condition Typ. Unit VCC (V) Quiet output maximum dynamic VOL VOLP Quiet output minimum dynamic VOL |VOLV| VIH = 2.5 V, VIL = 0 V, CL =30pF 2.5 0.6 VIH = 3.3 V, VIL = 0 V, CL =50pF 3.3 0.8 VIH = 2.5 V, VIL = 0 V, CL =30pF 2.5 0.6 VIH = 3.3 V, VIL = 0 V, CL =50pF 3.3 0.8 6 V V 2002-10-1 TC74LCX16373FT Capacitive Characteristics (Ta = 25C) Characteristics Symbol Test Condition Typ. Unit VCC (V) Input capacitance Output capacitance Power dissipation capacitance CIN 3/4 3.3 7 pF COUT 3/4 3.3 8 pF 3.3 25 pF CPD fIN = 10 MHz (Note 12) Note 12: 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 RL Switch Measure Parameter Switch tpLH, tpHL Open tpLZ, tpZL RL CL Output 6.0 V or VCC 2 Open GND tpHZ, tpZH 6.0 V VCC 2 @VCC = 3.3 0.3 V @VCC = 2.5 0.2 V GND RL = 500 W Figure 1 7 2002-10-1 TC74LCX16373FT AC Waveform tf 2.5 ns VM 10% tf 2.5 ns tr 2.5 ns GND tw (H) 2.7 V 90% VM VM th (H) ts (L) 10% GND ts (H) Output (Q) VIH 90% VM Input (LE) Input (D) tr 2.5 ns th (L) VOH VM VM tpLH tpHL tpHL Figure 2 VOL tpLH tpLH, tpHL, tw, ts, th tr 2.5 ns tf 2.5 ns VIH 90% VM Output Enable ( OE ) 10% tpLZ GND tpZL 3.0 V or Vcc Output (Q) Low to Off to Low VM VX tpHZ VOL tpZH VOH VY Output (Q) High to Off to High VM GND Outputs enabled Figure 3 Symbol Outputs enabled Outputs disabled tpLZ, tpHZ, tpZL, tpZH VCC 3.3 0.3 V 2.7 V 2.5 0.2 V VIH 2.7 V 2.7 V VCC VM 1.5 V 1.5 V VCC/2 VX VOL + 0.3 V VOL + 0.3 V VOL + 0.15 V VY VOH - 0.3 V VOH - 0.3 V VOH - 0.15 V 8 2002-10-1 TC74LCX16373FT Package Dimensions Weight: 0.25 g (typ.) 9 2002-10-1 TC74LCX16373FT RESTRICTIONS ON PRODUCT USE 000707EBA * 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. 10 2002-10-1