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Details, datasheet, quote on part number:74VCXH16373
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Datasheet text preview:
74VCXH16373 Low-Voltage 1.8/2.5/3.3V 16-Bit Transparent Latch
With 3.6VTolerant Inputs and Outputs (3State, NonInverting)
The 74VCXH16373 is an advanced performance, noninverting 16bit transparent latch. It is designed for very highspeed, very l o w p o w e r operation in 1.8V, 2.5V or 3.3V systems. The V C X H 1 6 3 7 3 is byte controlled, with each byte functioning identically, but independently. Each byte has separate Output Enable and Latch Enable inputs. These control pins can be tied together for full 16bit operation. When operating at 2.5V (or 1.8V) the part is designed to tolerate voltages it may encounter on either inputs or outputs when interfacing to 3.3V busses. It is guaranteed to be overvoltage tolerant to 3.6V. The 74VCXH16373 contains 16 Dtype latches with 3state 3.6Vtolerant outputs. When the Latch Enable (LEn) inputs are HIGH, data on the Dn inputs enters the latches. In this condition, the latches are transparent, (a latch output will change state each time its D input changes). When LE is LOW, the latch stores the information that w a s present on the D inputs a setup time preceding the HIGHtoLOW transition of LE. The 3state outputs are controlled by the Output Enable (OEn) inputs. When OE is LOW, the outputs are enabled. When OE is HIGH, the standard outputs are in the high impedance state, but this does not interfere with new data entering into the latches. 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
74VCXH16373DT
1
AWLYYWW
TSSOP48 DT SUFFIX CASE 1201 A WL YY WW
1 = Assembly Location = Wafer Lot = Year = Work Week
PIN NAMES
Pins OEn LEn D0D15 O0O15 Function Output Enable Inputs Latch Enable Inputs Inputs Outputs
· Designed for Low Voltage Operation: VCC = 1.653.6V · 3.6V Tolerant Inputs and Outputs · High Speed Operation: 3.0ns max for 3.0 to 3.6V · · · · · · ·
3.9ns max for 2.3 to 2.7V 6.8ns max for 1.65 to 1.95V Static Drive: ±24mA Drive at 3.0V ±18mA Drive at 2.3V ±6mA Drive at 1.65V 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 = 0V Near Zero Static Supply Current in All Three Logic States (20µA) Substantially Reduces System Power Requirements Latchup Performance Exceeds ±250mA @ 125°C ESD Performance: Human Body Model >2000V; Machine Model >200V
ORDERING INFORMATION
Device 74VCXH16373DT 74VCXH16373DTR 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
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January, 2001 Rev. 1
Publication Order Number: 74VCXH16373/D
74VCXH16373
OE1 1 O0 2 O1 3 GND 4 O2 5 O3 6 VCC 7 O4 8 O5 9 GND 10 O6 11 O7 12 O8 13 O9 14 GND 15 O10 16 O11 17 VCC 18 O12 19 O13 20 GND 21 O14 22 O15 23 OE2 24 48 LE1 47 D0 46 D1 45 GND 44 D2 43 D3 42 VCC 41 D4 40 D5 39 GND 38 D6 37 D7 36 D8 35 D9 34 GND 33 D10 32 D11 31 VCC 30 D12 29 D13 28 GND 27 D14 26 D15 25 LE2 D1 OE1 LE1 D0 1 48 47 nLE D nLE D nLE D nLE D nLE D nLE D nLE D nLE D Q 2 O0 OE2 LE2 D8 24 25 36 nLE D nLE D nLE D nLE D nLE D nLE D nLE D nLE D Q 13 O8
46
Q
3
O1
D9
35
Q
14
O9
D2
44
Q
5
O2
D10
33
Q
16
O10
D3
43
Q
6
O3
D11
32
Q
17
O11
D4
41
Q
8
O4
D12
30
Q
19
O12
D5
40
Q
9
O5
D13
29
Q
20
O13
D6
38
Q
11
O6
D14
27
Q
22
O14
D7
37
Q
12
O7
D15
26
Q
23
O15
Figure 1. 48Lead Pinout (Top View)
Figure 2. Logic Diagram
1 OE1 LE1 48 25 LE2 24
OE2
EN1 EN2 EN3 EN4
1
D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15
47 46 44 43 41 40 38 37 36 35 33 32 30 29 27 26
1 2
1
1
3
1
4
2 3 5 6 8 9 11 12 13 14 16 17 19 20 22 23
O0 O1 O2 O3 O4 O5 O6 O7 O8 O9 O10 O11 O12 O13 O14 O15
Figure 3. IEC Logic Diagram
Inputs LE1 X H H L OE1 H L L L D0:7 X L H X Outputs O0:7 Z L H O0 LE2 X H H L Inputs OE2 H L L L D8:15 X L H X Outputs O8:15 Z L H O0
H = High Voltage Level; L = Low Voltage Level; Z = High Impedance State; X = High or Low Voltage Level and Transitions Are Acceptable, for ICC reasons, DO NOT FLOAT Inputs. O0 = No Change.
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74VCXH16373
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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74VCXH16373
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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74VCXH16373
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 tPLH tPHL tPZH tPZL tPHZ tPLZ ts th tw tOSHL tOSLH Parameter Propagation Delay Dn to On Propagation Delay LE to On Output Enable Time to High and Low Level Output Disable Time From High and Low Level Setup Time, High or Low Dn to LE Hold Time, High or Low Dn to LE LE Pulse Width, High OutputtoOutput Skew (Note 7.) Waveform 1 1 2 2 3 3 3 Min 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1.5 1.0 1.5 0.5 0.5 Max 3.0 3.0 3.0 3.0 3.5 3.5 3.5 3.5 VCC = 2.3V to 2.7V Min 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.5 1.0 1.5 0.5 0.5 Max 3.4 3.4 3.9 3.9 4.6 4.6 3.8 3.8 VCC = 1.65 to 1.95V Min 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 1.0 4.0 0.75 0.75 Max 6.8 6.8 7.8 7.8 9.2 9.2 6.8 6.8 Unit ns ns ns ns 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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