74LVC373A

74LVC373A OCTAL D-TYPE LATCH HIGH PERFORMANCE s s s s s s s s s s 5V TOLERANT INPUTS HIGH SPEED: tPD = 6.8ns (MAX.) at VCC = 3V POWER DOWN PROTECTION ON INPUTS AND OUTPUTS SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24mA (MIN) at VCC = 3V PCI BUS LEVELS GUARANTEED AT 24 mA BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL OPERATING VOLTAGE RANGE: VCC(OPR) = 1.65V to 3.6V (1.2V Data Retention) PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 373 LATCH-UP PERFORMANCE EXCEEDS 500mA (JESD 17) ESD PERFORMANCE: HBM > 2000V (MIL STD 883 method 3015); MM > 200V SOP TSSOP Table 1: Order Codes PACKAGE SOP TSSOP T&R 74LVC373AMTR 74LVC373ATTR DESCRIPTION The 74LVC373A is a low voltage CMOS OCTAL D-TYPE LATCH fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for 1.65 to 3.6 VCC operations and low power and low noise applications. These 8 bit D-Type latch are controlled by a latch enable input (LE) and an output enable input (OE). While the LE inputs is held at a high level, the Q Figure 1: Pin Connection And IEC Logic Symbols outputs will follow the data input precisely or inversely. When the LE is taken low, the Q outputs will be latched precisely or inversely at the logic level of D input data. While the (OE) input is low, the 8 outputs will be in a normal logic state (high or low logic level) and while high level the outputs will be in a high impedance state. This device is designed to interface directly High Speed CMOS systems with TTL and NMOS components. It has more speed performance at 3.3V than 5V AC/ACT family, combined with a lower power consumption. All inputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. July 2004 Rev. 3 1/13 74LVC373A Figure 2: Input And Output Equivalent Circuit Table 2: Pin Description PIN N° 1 2, 5, 6, 9, 12, 15, 16,19 3, 4, 7, 8, 13, 14, 17, 18 11 10 20 SYMBOL OE Q0 to Q7 D0 to D7 LE GND VCC NAME AND FUNCTION Asynchronous Master Reset (Active LOW) 3-State Outputs Data Inputs Latch Enable Input Ground (0V) Positive Supply Voltage Table 3: Truth Table INPUTS OE H L L L X : Don’t Care Z :High Impedance OUTPUT D X X L H Q Z NO CHANGE L H LE X L H H Table 4: Absolute Maximum Ratings Symbol VCC VI VO VO IIK IOK IO Tstg TL Supply Voltage DC Input Voltage DC Output Voltage (VCC = 0V) DC Output Voltage (High or Low State) (note 1) DC Input Diode Current DC Output Diode Current (note 2) DC Output Current Storage Temperature Lead Temperature (10 sec) Parameter Value -0.5 to +7.0 -0.5 to +7.0 -0.5 to +7.0 -0.5 to VCC + 0.5 - 50 - 50 ± 50 ± 100 -65 to +150 300 Unit V V V V mA mA mA mA °C °C ICC or IGND DC VCC or Ground Current per Supply Pin Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied 1) IO absolute maximum rating must be observed 2) VO < GND 2/13 74LVC373A Table 5: Recommended Operating Conditions Symbol VCC VI VO VO IOH, IOL IOH, IOL IOH, IOL IOH, IOL Top dt/dv Supply Voltage (note 1) Input Voltage Output Voltage (VCC = 0V) Output Voltage (High or Low State) High or Low Level Output Current (VCC = 3.0 to 3.6V) High or Low Level Output Current (VCC = 2.7 to 3.0V) High or Low Level Output Current (VCC = 2.3 to 2.7V) High or Low Level Output Current (VCC = 1.65 to 2.3V) Operating Temperature Input Rise and Fall Time (note 2) Parameter Value 1.65 to 3.6 0 to 5.5 0 to 5.5 0 to VCC ± 24 ± 12 ±8 ±4 -55 to 125 0 to 10 Unit V V V V mA mA mA mA °C ns/V 1) Truth Table guaranteed: 1.2V to 3.6V 2) VIN from 0.8V to 2V at VCC = 3.0V Table 6: DC Specifications Test Condition Symbol Parameter VCC (V) 1.65 to 1.95 2.3 to 2.7 2.7 to 3.6 1.65 to 1.95 2.3 to 2.7 2.7 to 3.6 1.65 to 3.6 1.65 2.3 2.7 3.0 3.0 VOL Low Level Output Voltage 1.65 to 3.6 1.65 2.3 2.7 3.0 II Ioff IOZ Input Leakage Current Power Off Leakage Current High Impedance Output Leakage Current Quiescent Supply Current ICC incr. per Input 3.6 0 3.6 IO=-100 µA IO=-4 mA IO=-8 mA IO=-12 mA IO=-18 mA IO=-24 mA IO=100 µA IO=4 mA IO=8 mA IO=12 mA IO=24 mA VI = 0 to 5.5V VI or VO = 5.5V VI = VIH or VIL VO = 0 to 5.5V VI = VCC or GND 3.6 2.7 to 3.6 VI or VO = 3.6 to 5.5V VIH = VCC-0.6V VCC-0.2 1.2 1.7 2.2 2.4 2.2 0.2 0.45 0.7 0.4 0.55 ±5 10 ± 10 -40 to 85 °C Min. 0.65VCC 1.7 2 0.35VCC 0.7 0.8 VCC-0.2 1.2 1.7 2.2 2.4 2.2 0.2 0.45 0.7 0.4 0.55 ±5 10 ± 10 µA µA µA V V Max. Value -55 to 125 °C Min. 0.65VCC 1.7 2 0.35VCC 0.7 0.8 V V Max. Unit VIH High Level Input Voltage Low Level Input Voltage High Level Output Voltage VIL VOH ICC 10 ± 10 500 10 ± 10 500 µA µA 3/13 ∆ICC 74LVC373A Table 7: Dynamic Switching Characteristics Test Condition Symbol Parameter VCC (V) 3.3 CL = 50pF VIL = 0V, VIH = 3.3V Value TA = 25 °C Min. Typ. 0.8 -0.8 Max. V Unit VOLP VOLV Dynamic Low Level Quiet Output (note 1) 1) Number of output defined as "n". Measured with "n-1" outputs switching from HIGH to LOW or LOW to HIGH. The remaining output is measured in the LOW state. Table 8: AC Electrical Characteristics Test Condition Symbol Parameter VCC (V) CL (pF) 30 30 50 50 30 30 50 50 30 30 50 50 30 30 50 50 30 30 50 50 30 30 50 50 30 30 50 50 RL (Ω ) 1000 500 500 500 1000 500 500 500 1000 500 500 500 1000 500 500 500 1000 500 500 500 1000 500 500 500 1000 500 500 500 ts = t r (ns) 2.0 2.0 2.5 2.5 2.0 2.0 2.5 2.5 2.0 2.0 2.5 2.5 2.0 2.0 2.5 2.5 2.0 2.0 2.5 2.5 2.0 2.0 2.5 2.5 2.0 2.0 2.5 2.5 -40 to 85 °C Min. Max. TBD TBD 7.8 6.8 TBD TBD 7.8 6.8 TBD TBD 8.7 7.7 TBD TBD 7.6 7.0 Value -55 to 125 °C Min. Max. TBD TBD 9.4 8.2 TBD TBD 9.4 8.2 TBD TBD 10.4 9.2 TBD TBD 9.1 8.4 Unit tPLH tPHL Propagation Delay Time D to Q tPLH tPHL tPZL tPZH tPLZ tPHZ tW ts th tOSLH tOSHL 1.65 to 1.95 2.3 to 2.7 2.7 3.0 to 3.6 Propagation Delay 1.65 to 1.95 Time LE to Q 2.3 to 2.7 2.7 3.0 to 3.6 Output Enable Time 1.65 to 1.95 2.3 to 2.7 2.7 3.0 to 3.6 Output Disable Time 1.65 to 1.95 2.3 to 2.7 2.7 3.0 to 3.6 LE Pulse Width 1.65 to 1.95 HIGH 2.3 to 2.7 2.7 3.0 to 3.6 Setup Time D to LE 1.65 to 1.95 (HIGH to LOW) 2.3 to 2.7 2.7 3.0 to 3.6 Hold Time D to 1.65 to 1.95 CLOCK, HIGH or 2.3 to 2.7 LOW 2.7 3.0 to 3.6 Output To Output 2.7 to 3.6 Skew Time (note1, 2) 1.5 1 1.5 1 ns 1.5 1 1.5 1 ns 1 1 1 1 ns 2 2 TBD TBD 3.3 3.3 TBD TBD 2 2 TBD TBD 1.5 1.5 2 2 TBD TBD 3.3 3.3 TDB TBD 2 2 TBD TBD 1.5 1.5 ns ns ns ns 1 1 ns 1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switching in the same direction, either HIGH or LOW (tOSLH = | tPLHm - tPLHn|, tOSHL = | tPHLm - tPHLn| 2) Parameter guaranteed by design 4/13 74LVC373A Table 9: Capacitive Characteristics Test Condition Symbol Parameter VCC (V) Value TA = 25 °C Min. fIN = 10MHz Typ. 4 1.8 2.5 3.3 28 30 34 Max. pF pF Unit CIN CPD Input Capacitance Power Dissipation Capacitance (note 1) 1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/n (per circuit) Figure 3: Test Circuit RT = ZOUT of pulse generator (typically 50Ω) Table 10: Test Circuit And Waveform Symbol Value Symbol 1.65 to 1.95V CL RL = R1 VS VIH VM VOH VX VY tr = tr 30pF 1000Ω 2 x VCC VCC VCC/2 VCC VOL + 0.15V VOH - 0.15V