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Part: 74VCXH16245
Category:
Logic
Description:
Company: ON Semiconductor
Datasheet: Download 74VCXH16245 datasheet File size : 110 kB
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Datasheet text preview:
74VCXH16245 Low-Voltage 1.8/2.5/3.3V 16-Bit Transceiver
With 3.6 VTolerant Inputs and Outputs (3State, NonInverting)
The 74VCXH16245 is an advanced performance, noninverting 16bit transceiver. It is designed for very highspeed, very lowpower operation in 1.8 V, 2.5 V or 3.3 V systems. When operating at 2.5 V (or 1.8 V) the part is designed to tolerate voltages it may encounter on either inputs or outputs when interfacing to 3.3 V busses. It is guaranteed to be overvoltage tolerant to 3.6 V. The VCXH16245 is designed with byte control. It can be operated as two separate octals, or with the controls tied together, as a 16bit wide function. The Transmit/Receive (T/Rn) inputs determine the direction of data flow through the bidirectional transceiver. Transmit (activeHIGH) enables data from A ports to B ports; Receive (activeLOW) enables data from B to A ports. The Output Enable inputs (OEn), when HIGH, disable both A and B ports by placing them in a HIGH Z condition. The data inputs include active bushold circuitry, eliminating the need for external pullup resistors to hold unused or floating inputs at a valid logic state.
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48
48
74VCXH16245DT
1
AWLYYWW
TSSOP48 DT SUFFIX CASE 1201 A WL YY WW
1 = Assembly Location = Wafer Lot = Year = Work Week
· Designed for Low Voltage Operation: VCC = 1.653.6 V · 3.6 V Tolerant Inputs and Outputs · High Speed Operation: 2.5 ns max for 3.0 to 3.6 V · · · · · · ·
3.0 ns max for 2.3 to 2.7 V Device 6.0 ns max for 1.65 to 1.95 V 74VCXH16245DT Static Drive: ±24 mA Drive at 3.0 V ±18 mA Drive at 2.3 V 74VCXH16245DTR ±6 mA Drive at 1.65 V Supports Live Insertion and Withdrawal Includes Active Bushold to Hold Unused or Floating Inputs at a Valid Logic State IOFF Specification Guarantees High Impedance When VCC = 0 V Near Zero Static Supply Current in All Three Logic States (20 µA) Substantially Reduces System Power Requirements Latchup Performance Exceeds ±250 mA @ 125°C ESD Performance: Human Body Model >2000 V; Machine Model >200 V
ORDERING INFORMATION
Package TSSOP TSSOP Shipping 39 / Rail 2500 / Reel
NOTE: To ensure the outputs activate in the 3state condition, the output enable pins should be connected to VCC through a pullup resistor. The value of the resistor is determined by the current sinking capability of the output connected to the OE pin.
© Semiconductor Components Industries, LLC, 2001
1
January, 2001 Rev. 1
Publication Order Number: 74VCXH16245/D
74VCXH16245
T/R1 1 B0 2 B1 3 GND 4 B2 5 B3 6 VCC 7 B4 8 B5 9 GND 10 B6 11 B7 12 B8 13 B9 14 GND 15 B10 16 B11 17 VCC 18 B12 19 B13 20 GND 21 B14 22 B15 23 T/R2 24 48 OE1 47 A0 46 A1 45 GND 44 A2 43 A3 42 VCC 41 A4 40 A5 39 GND 38 A6 37 A7 36 A8 35 A9 34 GND 33 A10 32 A11 31 VCC 30 A12 29 A13 28 GND 27 A14 26 A15 25 OE2 T/R1 48 OE1 25 OE2 24 T/R2 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15
47 46 44 43 41 40 38 37 36 35 33 32 30 29 27 26 1 1 1 1
T/R1
1 48
T/R2
24 25
OE1
OE2
A0:7
B0:7
A8:15
B8:15
One of Eight
Figure 2. Logic Diagram
EN1 EN2 EN3 EN4
1
1
2 3 5 6 8 9 11
2
3
12 13 14 16
Figure 1. 48Lead Pinout (Top View) PIN NAMES
Pins OEn T/Rn A0A15 B0B15 Function Output Enable Inputs Transmit/Receive Inputs Side A Inputs or 3State Outputs Side B Inputs or 3State Outputs
4
17 19 20 22 23
B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15
Figure 3. IEC Logic Diagram
Inputs OE1 L L H T/R1 L H X Outputs Bus B0:7 Data to Bus A0:7 Bus A0:7 Data to Bus B0:7 High Z State on A0:7, B0:7 OE2 L L H
Inputs T/R2 L H X Outputs Bus B8:15 Data to Bus A8:15 Bus A8:15 Data to Bus B8:15 High Z State on A8:15, B8:15
H = High Voltage Level; L = Low Voltage Level; X = High or Low Voltage Level and Transitions Are Acceptable
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74VCXH16245
ABSOLUTE MAXIMUM RATINGS*
Symbol VCC VI VO Parameter DC Supply Voltage DC Input Voltage DC Output Voltage Value 0.5 to +4.6 0.5 VI +4.6 0.5 VO +4.6 0.5 VO VCC + 0.5 IIK IOK DC Input Diode Current DC Output Diode Current 50 50 +50 IO ICC IGND TSTG DC Output Source/Sink Current DC Supply Current Per Supply Pin DC Ground Current Per Ground Pin Storage Temperature Range ±50 ±100 ±100 65 to +150 Output in 3State Note 1.; Outputs Active VI VCC Condition Unit V V V V mA mA mA mA mA mA °C
* Absolute maximum continuous ratings are those values beyond which damage to the device may occur. Exposure to these conditions or conditions beyond those indicated may adversely affect device reliability. Functional operation under absolutemaximumrated conditions is not implied. 1. IO absolute maximum rating must be observed.
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VI VO IOH IOL IOH IOL IOH IOL TA t/V Supply Voltage Input Voltage Output Voltage HIGH Level Output Current, VCC = 3.0V 3.6V LOW Level Output Current, VCC = 3.0V 3.6V HIGH Level Output Current, VCC = 2.3V 2.7V LOW Level Output Current, VCC = 2.3V 2.7V HIGH Level Output Current, VCC = 1.65 1.95V LOW Level Output Current, VCC = 1.65 1.95V Operating FreeAir Temperature Input Transition Rise or Fall Rate, VIN from 0.8V to 2.0V, VCC = 3.0V 40 0 (Active State) (3State) Parameter Operating Data Retention Only Min 1.65 1.2 0.3 0 0 Typ 3.3 3.3 Max 3.6 3.6 3.6 VCC 3.6 24 24 18 18 6 6 +85 10 Unit V V V mA mA mA mA mA mA °C ns/V
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74VCXH16245
DC ELECTRICAL CHARACTERISTICS
TA = 40°C to +85°C Symbol VIH Characteristic HIGH Level Input Voltage (Note 2.) Condition 1.65V VCC < 2.3V 2.3V VCC 2.7V 2.7V < VCC 3.6V VIL LOW Level Input Voltage (Note 2.) 1.65V VCC < 2.3V 2.3V VCC 2.7V 2.7V < VCC 3.6V VOH HIGH Level Output Voltage 1.65V VCC 3.6V; IOH = 100µA VCC = 1.65V; IOH = 6mA VCC = 2.3V; IOH = 6mA VCC = 2.3V; IOH = 12mA VCC = 2.3V; IOH = 18mA VCC = 2.7V; IOH = 12mA VCC = 3.0V; IOH = 18mA VCC = 3.0V; IOH = 24mA VOL LOW Level Output Voltage 1.65V VCC 3.6V; IOL = 100µA VCC = 1.65V; IOL = 6mA VCC = 2.3V; IOL = 12mA VCC = 2.3V; IOL = 18mA VCC = 2.7V; IOL = 12mA VCC = 3.0V; IOL = 18mA VCC = 3.0V; IOL = 24mA II II(HOLD) Input Leakage Current Minimum Bushold Input Current 1.65V VCC 3.6V; 0V VI 3.6V VCC = 3.0V, VIN = 0.8V VCC = 3.0V, VIN = 2.0V VCC = 2.3V, VIN = 0.7V VCC = 2.3V, VIN = 1.6V VCC = 1.65V, VIN = 0.57V VCC = 1.65V, VIN = 1.07V II ( ) (OD) Minimum Bushold OverDrive Current N d d t Ch Needed to Change St t State VCC = 3.6V, (Note 3.) VCC = 3.6V, (Note 4.) VCC = 2.7V, (Note 3.) VCC = 2.7V, (Note 4.) VCC = 1.95V, (Note 3.) VCC = 1.95V, (Note 4.) IOZ IOFF ICC ICC 2. 3. 4. 5. 3State Output Current PowerOff Leakage Current Quiescent Supply Current (Note 5.) 1.65V VCC 3.6V; 0V VO 3.6V; VI = VIH or VIL VCC = 0V; VI or VO = 3.6V 1.65V VCC 3.6V; VI = GND or VCC 1.65V VCC 3.6V; 3.6V VI, VO 3.6V Increase in ICC per Input 2.7V < VCC 3.6V; VIH = VCC 0.6V These values of VI are used to test DC electrical characteristics only. An external driver must source at least the specified current to switch from LOWtoHIGH. An external driver must source at least the specified current to switch from HIGHtoLOW. Outputs disabled or 3state only. 75 75 45 45 25 25 450 450 300 300 200 200 ±10 10 20 ±20 750 µA µA µA µA µA µA VCC 0.2 1.25 2.0 1.8 1.7 2.2 2.4 2.2 0.2 0.3 0.4 0.6 0.4 0.4 0.55 ±5.0 µA µA V Min 0.65 x VCC 1.6 2.0 0.35 x VCC 0.7 0.8 V V Max Unit V
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74VCXH16245
AC CHARACTERISTICS (Note 6.; tR = tF = 2.0ns; CL = 30pF; RL = 500)
Limits TA = 40°C to +85°C VCC = 3.0V to 3.6V Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ tOSHL tOSLH Parameter Propagation Delay Input to Output Output Enable Time to High and Low Level Output Disable Time From High and Low Level OutputtoOutput Skew (Note 7.) Waveform 1 2 2 Min 0.8 0.8 0.8 0.8 0.8 0.8 Max 2.5 2.5 3.8 3.8 3.7 3.7 0.5 0.5 VCC = 2.3V to 2.7V Min 1.0 1.0 1.0 1.0 1.0 1.0 Max 3.0 3.0 4.9 4.9 4.2 4.2 0.5 0.5 VCC = 1.65 to1.95V Min 1.5 1.5 1.5 1.5 1.5 1.5 Max 6.0 6.0 9.3 9.3 7.6 7.6 0.75 0.75 Unit ns ns ns ns
6. For CL = 50pF, add approximately 300ps to the AC maximum specification. 7. 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 HIGHtoLOW (tOSHL) or LOWtoHIGH (tOSLH); parameter guaranteed by design.
DYNAMIC SWITCHING CHARACTERISTICS
TA = +25°C Symbol VOLP Characteristic Dynamic LOW Peak Voltage (Note 8.) Condition VCC = 1.8V, CL = 30pF, VIH = VCC, VIL = 0V VCC = 2.5V, CL = 30pF, VIH = VCC, VIL = 0V VCC = 3.3V, CL = 30pF, VIH = VCC, VIL = 0V VOLV Dynamic LOW Valley Voltage (Note 8.) VCC = 1.8V, CL = 30pF, VIH = VCC, VIL = 0V VCC = 2.5V, CL = 30pF, VIH = VCC, VIL = 0V VCC = 3.3V, CL = 30pF, VIH = VCC, VIL = 0V VOHV Dynamic HIGH Valley Voltage (Note 9.) VCC = 1.8V, CL = 30pF, VIH = VCC, VIL = 0V VCC = 2.5V, CL = 30pF, VIH = VCC, VIL = 0V VCC = 3.3V, CL = 30pF, VIH = VCC, VIL = 0V Typ 0.25 0.6 0.8 0.25 0.6 0.8 1.5 1.9 2.2 V V Unit V
8. Number of outputs defined as "n". Measured with "n1" outputs switching from HIGHtoLOW or LOWtoHIGH. The remaining output is measured in the LOW state. 9. Number of outputs defined as "n". Measured with "n1" outputs switching from HIGHtoLOW or LOWtoHIGH. The remaining output is measured in the HIGH state.
CAPACITIVE CHARACTERISTICS
Symbol CIN COUT CP D Parameter Input Capacitance Output Capacitance Power Dissipation Capacitance Condition Note 10. Note 10. Note 10., 10MHz Typical 6 7 20 Unit pF pF pF
10. VCC = 1.8, 2.5 or 3.3V; VI = 0V or VCC.
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