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21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT373T PI74FCT573T Octal Transparent Latches
Fast CMOS Octal Transparent Latches
Features:
* PI74FCT373/573T are pin compatible with bipolar FASTTM Series at a higher speed and lower power consumption * TTL input and output levels * Low ground bounce outputs * Extremely low static power * Hysteresis on all inputs * Industrial operating temperature range: -40C to +85C * Device models available upon request * Packaging: - 20-pin TSSOP (L) - 20-pin SSOP (H) - 20-pin QSOP (Q) - 20-pin SOIC (S)
Description:
Pericom Semiconductor's PI74FCT373T and PI74FCT 573T are 8-bit wide octal transparent latches designed with 3-state outputs and are intended for bus oriented applications. When Latch Enable (LE) is HIGH, the flip-flops appear transparent to the data. The data that meets the set-up time when LE is LOW is latched. When OE is HIGH, the bus output is in the high impedance state.
Block Diagram
D0 D O G G D1 D O G D2 D O G D3 D O G D4 D O G D5 D O G D6 D O G D7 D O
LE
OE
O0
O1
O2
O3
O4
O5
O6
O7
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PI74FCT373T PI74FCT573T OCTAL TRANSPARENT LATCHES
PI74FCT373 Pin Configuration
OE O0 D0 D1 O1 O2 D2 D3 O3 GND
1 20 2 19 3 18 20-PIN 4 L20 17 5 P20 16 6 Q20 15 S20 14 7 8 13 9 12 10 11
Pin Description
Vcc O7 D7 D6 O6 O5 D5 D4 O4 LE
Pin Name OE LE D0-D7 O0-O7 O0-O7 GND VCC
Description Output Enable Input (Active LOW) Latch Enable Input (Active HIGH) Data Inputs 3-State Outputs Complementary 3-State Outputs Ground Power Inputs LE H H X Outputs ON H L Z
Truth Table(1)
DN H L X
1.
PI74FCT573 Pin Configuration
OE D0 D1 D2 D3 D4 D5 D6 D7 GND
1 20 2 19 3 20-PIN 18 L20 4 17 P20 5 16 Q20 6 15 S20 7 14 8 13 9 12 10 11
Vcc O0 O1 O2 O3 O4 O5 O6 O7
LE
OE L L H
H = High Voltage Level L = Low Voltage Level X = Don't Care Z = High Impedance
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PI74FCT373T PI74FCT573T OCTAL TRANSPARENT LATCHES
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ................................................................. -65C to +150C Ambient Temperature with Power Applied ................................. -40C to +85C Supply Voltage to Ground Potential (Inputs & Vcc Only) .......... -0.5V to +7.0V Supply Voltage to Ground Potential (Outputs & D/O Only) ....... -0.5V to +7.0V DC Input Voltage ......................................................................... -0.5V to +7.0V DC Output Current ................................................................................... 120 mA Power Dissipation ......................................................................................... 0.5W
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.
DC Electrical Characteristics (Over the Operating Range, TA = -40C to +85C, VCC = 5.0V 5%)
Parameters Description VOH VOL VOL VIH VIL IIH IIL IOZH IOZL VIK IOFF IOS VH Output HIGH Voltage Output LOW Current Output LOW Current Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current High Impedance Output Current Clamp Diode Voltage Power Down Disable Short Circuit Current Input Hysteresis VCC = Min., IIN = -18 mA VCC = GND, VOUT = 4.5V VCC = Max.(3), VOUT = GND -- -60 Test Conditions(1) VCC = Min., VIN = VIH or VIL VCC = Min., VIN = VIH or VIL VCC = Min., VIN = VIH or VIL Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max. VCC = Max. VCC = MAX. VIN = VCC VIN = GND VOUT = 2.7V VOUT = 0.5V -0.7 -- -120 200 IOH = -15.0 mA IOL = 64 mA IOL = 12 mA (25 Series) 2.0 0.8 1 -1 1 -1 -1.2 100 Min. Typ(2) Max. Units 2.4 3.0 0.3 0.3 0.55 0.50 V V V V V A A A A V A mA mV
Capacitance (TA = 25C, f = 1 MHz)
Parameters(4) CIN COUT Description Input Capacitance Output Capacitance Test Conditions VIN = 0V VOUT = 0V Typ 6 8 Max. 10 12 Units pF pF
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at Vcc = 5.0V, +25C ambient and maximum loading. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. This parameter is determined by device characterization but is not production tested.
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PI74FCT373T PI74FCT573T OCTAL TRANSPARENT LATCHES
Power Supply Characteristics
Parameters Description ICC ICC ICCD Quiescent Power Supply Current Supply Current per Input @ TTL HIGH Supply Current per Input per MHz(4) VCC = Max. VCC = Max., VCC = Max., Outputs Open OE = GND LE = VCC One Bit Toggling 50% Duty Cycle VCC = Max., Outputs Open fI = 10 MHZ 50% Duty Cycle OE = GND LE = VCC One Bit Toggling VCC = Max., Outputs Open fI = 2.5 MHZ 50% Duty Cycle OE = GND LE = VCC Eight Bits Toggling Test Conditions(1) VIN = GND or VCC VIN = 3.4V(3) VIN = VCC VIN = GND Min. Typ(2) 0.1 0.5 0.15 Max. 500 2.0 0.25 Units A mA mA/ MHz
IC
Total Power Supply Current(6)
VIN = VCC VIN = GND VIN = 3.4V VIN = GND VIN = VCC VIN = GND VIN = 3.4V VIN = GND
1.5
3.0(5)
mA
1.8
4.5(5)
3.0
6.0(5)
5.0
14.0(5)
Notes: 1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at Vcc = 5.0V, +25C ambient. 3. Per TTL driven input (VIN = 3.4V); all other inputs at Vcc or GND. 4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations. 5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested. 6. IC =IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ICC DHNT + ICCD (fCP/2 + fINi) ICC = Quiescent Current ICC = Power Supply Current for a TTL High Input (VIN = 3.4V) DH = Duty Cycle for TTL Inputs High NT = Number of TTL Inputs at DH ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL) fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices) fI = Input Frequency NI = Number of Inputs at fI All currents are in milliamps and all frequencies are in megahertz.
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PS2015B
10/06/04
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PI74FCT373T PI74FCT573T OCTAL TRANSPARENT LATCHES
PI74FCT373T Switching Characteristics over Operating Range
373T Com. 373AT Com. Max Min Max Min 373CT Com. Max Min 373DT Com. Max Unit
Parameters tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ tSU tH tW
Description Propagation Delay DN to ON Propagation Delay LE to ON Output Enable Time OE to ON Output Disable Time(3) OE to ON Setup Time HIGH or LOW, DN to LE Hold Time HIGH or LOW, DN to LE LE Pulse Width(3) HIGH
Conditions(1) CL = 50 pF RL = 500
Min
1.5 2.0 1.5 1.5 2.0 1.5 6.0
8.0 13.0 12.0 7.5 -- -- --
1.5 2.0 1.5 1.5 2.0 1.5 5.0
5.2 8.5 6.5 5.5 -- -- --
1.5 2.0 1.5 1.5 2.0 1.5 5.0
4.2 5.5 5.5 5.0 -- -- --
1.5 1.5 1.5 1.5 2.0 1.5 4.0
3.8 4.9 5.5 5.0 -- -- --
ns ns ns ns ns ns ns
PI74FCT573T Switching Characteristics over Operating Range
573T Com. 573AT Com. Max Min Max Min 573CT Com. Max Min 573DT Com. Max Unit
Parameters tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ tSU tH tW
Description Propagation Delay DN to ON Propagation Delay LE to ON Output Enable Time OE to ON Output Disable Time(3) OE to ON Setup Time HIGH or LOW, DN to LE Hold Time HIGH or LOW, DN to LE LE Pulse Width(3) HIGH
Conditions
(1)
Min
CL = 50 pF RL = 500
1.5 2.0 1.5 1.5 2.0 1.5 6.0
8.0 12.0 9.5 6.5 -- -- --
1.5 2.0 1.5 1.5 2.0 1.5 5.0
5.2 8.5 6.5 5.5 -- -- --
1.5 2.0 1.5 1.5 2.0 1.5 5.0
4.2 5.5 5.5 5.0 -- -- --
1.5 2.0 1.5 1.5 1.5 1.0 3.0
3.8 4.9 5.5 5.0 -- -- --
ns ns ns ns ns ns ns
Notes: 1. See test circuit and wave forms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. This parameter guaranteed but not production tested.
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Packaging Mechanical: 20-pin QSOP (Q)
20
.008 0.20 MIN.
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT373T PI74FCT573T OCTAL TRANSPARENT LATCHES
Packaging Mechanical: 20-Pin TSSOP (L)
20
.169 .177
4.3 4.5
1 .252 .260 6.4 6.6 .004 0.09 .008 0.20 .047 1.20 Max 0.45 0.75 .018 .030
SEATING PLANE
.238 .269 6.1 6.7
.0256 BSC 0.65
.007 .012 0.19 0.30
.002 0.05 .006 0.15
X.XX X.XX
DENOTES CONTROLLING DIMENSIONS IN MILLIMETERS
.150 .157
3.81 3.99
Guage Plane
.008 .013 0.20 0.33
.010 0.254
1 .337 8.56 .344 8.74
Detail A
.016 .035 0.41 0.89
.041 1.04 REF
0-6
.058 REF 1.47
.053 1.35 .069 1.75 SEATING PLANE
.015 x 45 0.38
Detail A
.007 .010 .016 .050 0.41 1.27
0.178 0.254
.025 BSC 0.635
.004 0.101 .010 0.254 .008 0.203 .012 0.305
.228 .244 5.79 6.19
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
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PI74FCT373T PI74FCT573T OCTAL TRANSPARENT LATCHES
Packaging Mechanical: 20-Pin SSOP (H)
20
.197 .220
5.00 5.60
1 .272 .295 6.90 7.50 .078 2.00 Max SEATING PLANE .002 Min 0.050
.004 .009
0.09 0.25
0.55 .022 0.95 .037 .291 .322 7.40 8.20
.0256 BSC 0.65
.0098 Max. 0.25
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
Packaging Mechanical: 20-pin SOIC (S)
20
.2914 .2992
7.40 7.60 .010 .029 0.254 x 45 0.737
1 .496 12.60 .511 12.99 .0091 .0125 0.41 .016 1.27 .050 .0926 .1043 2.35 2.65 SEATING PLANE .394 .419 10.00 10.65 0.23 0.32
0-8
.020 0.508 REF .030 0.762
.050 BSC 1.27
.013 .020 0.33 0.51
.0040 .0118
0.10 0.30 X.XX DENOTES CONTROLLING X.XX DIMENSIONS IN MILLIMETERS
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PS2015B
10/06/04
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PI74FCT373T PI74FCT573T OCTAL TRANSPARENT LATCHES
PI74FCT373T Ordering Information
Ordering Code PI74FCT373TL PI74FCT373TQ PI74FCT373TS PI74FCT373ATH PI74FCT373ATL PI74FCT373ATS PI74FCT373ATQ PI74FCT373CTH PI74FCT373CTL PI74FCT373CTS PI74FCT373CTQ PI74FCT373DTH PI74FCT373DTL PI74FCT373DTQ Package Code L Q S H L S Q H L S Q H L Q Speed Grade Blank Blank Blank A A A A C C C C D D D Package Type 20-pin TSSOP 20-pin QSOP 20-pin SOIC 20-pin SSOP 20-pin TSSOP 20-pin SOIC 20-pin QSOP 20-pin SSOP 20-pin TSSOP 20-pin SOIC 20-pin QSOP 20-pin SSOP 20-pin TSSOP 20-pin QSOP
PI74FCT573T Ordering Information
Ordering Code PI74FCT573TQ PI74FCT573TS PI74FCT573ATH PI74FCT573ATL PI74FCT573ATS PI74FCT573ATQ PI74FCT573CTH PI74FCT573CTL PI74FCT573CTS PI74FCT573CTQ PI74FCT573DTQ Package Code Q S H L S Q H L S Q Q Speed Grade Blank Blank A A A A C C C C D Package Type 20-pin QSOP 20-pin SOIC 20-pin SSOP 20-pin TSSOP 20-pin SOIC 20-pin QSOP 20-pin SSOP 20-pin TSSOP 20-pin SOIC 20-pin QSOP 20-pin QSOP
Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
Pericom Semiconductor Corporation * 1-800-435-2336 * www.pericom.com
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PS2015B 10/06/04

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