PI74VCX16373 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 16-Bit Transparent D-Type Latch with 3-State Outputs Features Description • The PI74VCX Family is designed for low voltage operation, VDD = 1.8V to 3.6V • 3.6V I/O Tolerant Inputs and Outputs • Supports Live Insertion • Balanced Drive, ±24mA • Uses patented Noise Reduction Circuitry • Typical VOLP (Output Ground Bounce) < 0.6V at VDD = 2.5V, TA = 25ºC • Typical VOHV (Output VOH Undershoot) < –0.6V at VDD = 2.5V, TA = 25ºC Pericom Semiconductor’s PI74VCX16373 is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. This device can be used as two 8bit latches or one 16-bit latch. When the Latch Enable (LE) input is HIGH, the Q outputs follow the (D) inputs. When LE is taken LOW, the Q outputs are latched at the levels set up at the D inputs. A buffered Output Enable (OE) input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or a high-impedance state in which the outputs neither load nor drive the bus lines significantly. The high-impedance state and the increased drive provide the capability to drive bus lines without need for interface or pullup components. OE does not affect internal operations of the latch. Old data can be retained or new data can be entered while the outputs are in the high impedance state. • Power-Off high impedance inputs and outputs • Industrial operation at –40°C to +85°C • Packaging (Pb-free & Green available): – 48-pin 240-mil wide plastic TSSOP (A) To ensure the high-impedance state during power up or power down, OE should be tied to VDD through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. Block Diagram The PI74VCX family is I/O Tolerant, allowing it to operate in mixed 1.8V/3.6V systems. 1 1OE 48 1LE C1 2 1D1 47 1Q1 1D To Seven Other Channels 24 2OE 25 2LE C1 13 2D1 36 2Q1 1D To Seven Other Channels 06-0203 1 PS8326C 10/27/06 PI74VCX16373 16-Bit Transparent D-Type Latch with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Truth Table(1) Pin Description Pin Name OE Description Output Enable Input (Active LOW) LE Dx Qx GND VDD Latch Enable (Active HIGH) Data Inputs 3-State Outputs Ground Power Inputs 1OE 1 48 1LE 1Q1 2 47 1D1 1Q2 3 46 1D2 GND 4 45 GND 1Q3 5 44 1D3 1Q4 6 43 1D4 VDD 7 42 VDD 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 VDD 18 31 VDD 2Q5 19 30 2D5 2Q6 20 29 2D6 GND 21 28 GND 2Q7 22 27 2D7 2Q8 23 26 2D8 2OE 24 25 2LE 06-0203 OE LE D Q L H H H L H L L L L X Q0 H X X Z Notes: 1. H L X Z Pin Configuration 2 Outputs = = = = High Signal Level Low Signal Level Don’t Care or Irrelevant High Impedance PS8326C 10/27/06 PI74VCX16373 16-Bit Transparent D-Type Latch with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Supply Voltage Range, VDD .............................................. –0.5V to 4.6V Input Voltage Range, VI ....................................................... -0.5V to 4.6V Output Voltage Range, VO (3-Stated) .......................... -0.5V to 4.6V Output Voltage Range, VO(1) (Active) ............ –0.5V to VDD + 0.5V DC Input Diode Current (IIK) VI < 0V .................................... -50mA DC Output Diode Current (IOK) VO < 0V ................................................................................ -50mA VO > VDD ......................................................................................... -50mA DC Output Source/Sink Current (IOH/IOL) ............................ ±50mA DC VDD or GND Current per Supply Pin (ICC or GND) .... ±100mA Storage Temperature Range, TSTG ............................ –65°C to150°C Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. Notes: 1. Absolute maximum of IO must be observed. Recommended Operating Conditions(1) Parame te rs VDD De s cription Conditions M in. M a x. Operating 1.8 3.6 Data Retention Only 1.2 3.6 2.0 Supply voltage VIH High- level input voltage VDD = 2.7V to 3.6V VIL Low- level input voltage VDD = 2.7V to 3.6V VI Input voltage VO Output voltage Output current in IOH/IOL Δt/Δv TA Units 0 .8 - 0 .3 3 .6 Active State 0 VDD Off State 0 3.6 ± 24 ±18 ±6 mA 0 10 ns/V − 40 85 C VDD = 3.0V to 3.6V VDD = 2.3V to 2.7V VDD = 1.8V Input transistion rise or fall rate(2) Operating free- air temperature V Notes: 1. Unused control inputs must be held HIGH or LOW to prevent them from floating. 2. As measured between 0.8V and 2.0V, VDD = 3.0V. 06-0203 3 PS8326C 10/27/06 PI74VCX16373 16-Bit Transparent D-Type Latch with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Electrical Characteristics over Recommended Operating Free-Air Temperature Range (unless otherwise noted) DC Characteristics (2.7V < VDD ≤ 3.6V) Parame te rs De s cription VIH HIGH Level Input Voltage VIL LOW Level Input Voltage Conditions VDD HIGH Level Output Voltage 2.7 - 3.6 LOW Level Output Voltage IOH = −12 mA 2.7 IOH = −18 mA 2.4 0.2 IOL = 12 mA 2. 7 0 .4 IOL = 18 mA IOZ 3- STATE Output Leakage 0 ≤ VO ≤ 3.6V VI = VIH or VIL IOFF Power- OFF Leakage Current 0 ≤ (VI,VO) ≤ 3.6V IDD Quiescent Supply Current 06-0203 V 2.2 2 . 7 - 3 .6 VI = 0.0V, V1 = 3.6V Increase in IDD per input 2.2 IOL = 100 μA Input Leakage Current ΔIDD Units 0.8 3.0 0.4 3.0 IOL = 24 mA II M a x. VDD - 0.2 IOH = −24 mA VOL Typ. 2.0 IOH = −100 μA VOH M in. 0.5 3.6 ± 5 .0 2.7 - 3.6 ±10 0 10 VI = VDD to GND μA 20 VDD ≤ (VI,VO) ≤ 3.6V VIH = VDD - 0.6V, Other inputs at VDD or GND 4 2.7 - 3.6 ± 20 750 PS8326C 10/27/06 PI74VCX16373 16-Bit Transparent D-Type Latch with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 DC Characteristics (2.3V ≤ VDD ≤ 2.7V) Parame te rs De s cription VIH HIGH Level Input Voltage VIL LOW Level Input Voltage Conditions VDD HIGH Level Output Voltage IOH = - 6mA 2.0 2.3 1.8 V 1.7 IOL = 100μA 2.3 - 2.7 0. 2 IOL = 12mA 0.4 2.3 IOL = 18mA 0. 4 Input Leakage Current V1 = 0.0V, V1 = 2.7V IOZ 3- STATE Output Leakage 0 ≤ VO ≤ 3.6V VI = VIH or VIL IOFF Power- OFF Leakage Current 0 ≤ (VI,VO) ≤ 3.6V IDD Quiescent Supply Current II Units VDD - 0.2 IOH = - 12mA LOW Level Output Voltage M ax. 0.7 2.3 - 2.7 IOH = - 18mA VOL Typ. 1. 6 IOH = - 100μA VOH M in. 2. 7 ± 5.0 2.3 - 2.7 ± 10 0 10 VI = VDD or GND μA 20 VDD ≤ (VI,VO) ≤ 3.6V 2.3 - 2.7 ± 20 DC Characteristics (1.8V ≤ VDD ≤ 2.3V) Parame te rs De s cription VIH HIGH Level Input Voltage VIL LOW Level Input Voltage VOH HIGH Level Output Voltage Conditions VDD 1. 8 - 2 . 3 LOW Level Output Voltage IOH = - 100μA Input Leakage Current Units 0.7 x VDD V 1. 4 IOL = 100μA 0.2 1. 8 0 ≤ VO ≤ 3.6V VI = VIH or VIL 3- STATE Output Leakage IOFF Power- OFF Leakage Current 0 ≤ (VI,VO) ≤ 3.6V IDD Quiescent Supply Current 0. 3 ± 5.0 V1 = 0.0V, V1 = 1.8V IOZ 06-0203 M ax. VDD - 0.2 IOL = 6mA II Typ. 0.2 x VDD IOH = - 6mA VOL M in. ±10 0 10 VI = VDD or GND 1.8 20 VDD ≤ (VI,VO) ≤ 3.6V 1.8 ± 20 5 μA PS8326C 10/27/06 PI74VCX16373 16-Bit Transparent D-Type Latch with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 AC Electrical Characteristics(1) TA = -40°C to +85°C, CL = 30pF, RL = 500Ω VDD = 3.3V ± 0.3V VDD = 2.5V ± 0.2V Symbol Parame te rs tPLH, tPHL VDD = 1.8V M in. M ax. M in. M a x. M in. M a x. Prop Delay, DTOQ 0 .8 3.0 1.0 3.4 1.5 6.0 tPLH, tPHL Prop Delay, LE to Q 0 .8 3.0 1.0 3.9 1.5 6.0 tPZH, tPZL Output Enable Time 0 .8 3.5 1.0 4. 6 1.5 7 .0 tPHZ, tPLZ Output Disable Time 0 .8 3.5 1.0 3.8 1.5 5.0 tOSHL, tOSLH Output to Output Skew(2) 0.5 0.5 Units ns 0 .5 Notes: 1. For CL = 50pF add approximatly 300ps to AC maximum specification. 2. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH or LOW (tOSHL) or LOW to HIGH (tOSLH). AC Setup Requirements TA = -40ºC to +85ºC, CL = 30pF, RL = 500Ω VDD =3.3V ± 0.3V Symbol Parame te rs M in. Typ. VDD =2.5V ± 0.2V M in. VDD =1.8V Typ. M in. tSU Setup Time, D to LE 1. 5 1. 5 2 .5 tH Hold Time, D to LE 1.0 1.0 1.0 tW LE Pulse Width, High 1.5 1. 5 3 .0 Typ. Units ns Dynamic Switching Characteristics Symbol Parame te rs Conditions VDD TA = +25°C Typical VOLP Quiet Output Dynamic Peak VOL CL = 50pF, VIH = VDD, VIL = 0V 1.8 2.5 3.3 0.25 0.6 0.8 VOLP Quiet Output Dynamic Valley VOL CL = 50pF, VIH = VDD, VIL = 0V 1.8 2.5 3.3 - 0.25 - 0.6 - 0.8 VOLP Quiet Output Dynamic Valley VOH CL = 50pF, VIH = VDD, VIL = 0V 1.8 2.5 3.3 1.5 1.9 2.2 Units V Capacitance Symbol Parame te rs Conditions TA = +25°C Typical CIN Input Capacitance VDD = 1.8, 2.5V or 3.3V, VI = 0V or VDD 6 COUT Output Capacitance VI = 0V or VDD, VDD = 1.8V, 2.5V or 3.3V 7 C PD Power Dissipation Capacitance VI = 0V or VDD, F = 10 MHz VDD = 1.8V, 2.5V or 3.3V 20 06-0203 6 Units pF PS8326C 10/27/06 PI74VCX16373 16-Bit Transparent D-Type Latch with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Test Circuits and Switching Waveforms Switch Position Parameter Measurement Information (VDD = 1.8V - 3.6V) Te s t S1 tPD Open tPLZ/tPZL 2 x VDD tPHZ/tPZH GND 2 x VDD R1 500Ω From Output Under Test Open RL 500Ω 30pF CL GND Pulse Width VDD (See Note A) Low-High-Low Pulse VDD/2 0V tW VDD High-Low-High Pulse Setup, Hold, and Release Timing Data Input tSU Timing Input tH VDD/2 0V VDD VDD/2 0V Propagaton Delay VDD VDD VDD/2 0V VDD/2 Input 0V tPHL tPLH VDD Notes: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is LOW except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is HIGH except when disabled by the output control. • All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50Ω, tR ≤ 2ns, tF ≤ 2ns, measured from 10% to 90%, unless otherwise specified. • The outputs are measured one at a time with one transition per measurement. Output VDD/2 VOL tPHL tPLH VDD Opposite Phase Input Transition VDD/2 0V Enable Disable Timing VDD Output Control (Active LOW) VDD/2 0V tPLZ tPZL VDD Output Waveform 1 S1 at 2xVDD (see Note B) Output Waveform 2 S1 at GND VDD VDD/2 +0.15V tPZH -0.15V 7 VOH VDD/2 0V (see Note B) 06-0203 VOL tPHZ PS8326C 10/27/06 PI74VCX16373 16-Bit Transparent D-Type Latch with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Packaging Mechanical: 48-pin TSSOP (A) 48 .236 .244 1 6.0 6.2 .488 12.4 .496 12.6 .047 1.20 Max SEATING PLANE .004 0.09 .008 0.20 X.XX X.XX DENOTES DIMENSIONS IN MILLIMETERS .0197 BSC 0.50 .002 .006 0.05 0.15 .007 .010 0.17 0.27 0.45 .018 0.75 .030 .319 BSC 8.1 Ordering Information Ordering Code PI74VCX16373A PI74VCX16373AE Package Code A A Package Type 48-pin TSSOP Pb-free & Green, 48-pin TSSOP Notes: • Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ • E = Pb-free & Green • Adding an X suffix = Tape/Reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 06-0203 8 PS8326C 10/27/06