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MC74F574 OCTAL D-TYPE FLIP-FLOP WITH 3-STATE OUTPUTS
The MC74F574 is a high-speed, low-power octal D-type flip-flop featuring separate D-type inputs for each flip-flop and 3-state outputs for bus oriented applications. A buffered clock (CP) and Output Enable (OE) are common to all flip-flops. This device is functionally identical to the F374 except for the pinouts. * Broadside Pinout Version of F374 * Edge-Triggered D-Type Inputs * Buffered Positive Edge-Triggered Clock * 3-State Outputs for Bus Oriented Applications * ESD Protection > 4000 Volts
OCTAL D-TYPE FLIP-FLOP WITH 3-STATE OUTPUTS
FASTTM SCHOTTKY TTL
PIN ASSIGNMENT
VCC O0 20 19 O1 18 O2 17 O3 16 O4 15 O5 14 O6 13 O7 12 CP 11
20 1
J SUFFIX CERAMIC CASE 732-03
20 1
N SUFFIX PLASTIC CASE 738-03
1 OE
2 D0
3 D1
4 D2
5 D3
6 D4
7 D5
8 D6
9 D7
10 GND
20 1
DW SUFFIX SOIC CASE 751D-03
LOGIC SYMBOL
2 3 4 5 6 7 8 9
ORDERING INFORMATION
D0 11 CP D1 D2 D3 D4 D5 D6 D7 MC74FXXXJ Ceramic MC74FXXXN Plastic MC74FXXXDW SOIC
1
OE O0 19 O1 18 O2 17 O3 16 O4 15 O5 14 O6 13 O7 12
GUARANTEED OPERATING RANGES
Symbol VCC TA IOH IOL DC Supply Voltage Operating Ambient Temperature Range Output Current -- High Output Current -- Low Parameter 74 74 74 74 Min 4.5 0 -- -- Typ 5.0 25 -- -- Max 5.5 70 3.0 24 Unit V C mA mA
FAST AND LS TTL DATA 4-226
MC74F574
FUNCTION TABLE
Inputs OE L L L H H CP X Dn l h X Dn X Internal Register L H NC Dn X Outputs Operating Mode Q0-Q7 L H NC Z Z Load and read register Hold Disable outputs
H = HIGH voltage level h = HIGH voltage level one set-up time prior to the Low-to-High clock transition L = LOW voltage level l = LOW voltage level one set-up time prior to the Low-to-High clock transition NC = No change X = Don't care Z = High impedance "off" state = Low-to-High clock transition = Not a Low-to-High clock transition
FUNCTIONAL DESCRIPTION
The MC74F574 consists of eight edge-triggered flip-flops with individual D-type inputs and 3-state true outputs. The buffered clock and buffered Output Enable are common to all flip-flops. The eight flip-flops will store the state of their individual D inputs that meet the setup and hold times requirements on the LOW-to-HIGH Clock (CP) transition. With the Output Enable (OE) LOW, the contents of the eight flip-flops are available at the outputs. When the OE is HIGH, the outputs go to the high impedance state. Operation of the OE input does not affect the state of the flip-flops.
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits Symbol VIH VIL VIK VOH VOL IIH IIL IOZH IOZL IOS ICCZ Parameter Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Output HIGH Voltage 2.7 Output LOW Voltage Input HIGH Current -- Input LOW Current Output Off Current -- HIGH Output Off Current -- LOW Output Short Circuit Current (Note 2) Power Supply Current (All Outputs OFF) -- -- -- - 60 -- -- -- -- -- -- 55 100 - 0.6 50 -50 -150 86 -- -- -- -- -- -- 0.5 20 V V A mA A A mA mA Min 2.0 -- -- 2.4 Typ -- -- -- -- Max -- 0.8 - 1.2 -- Unit V V V V IOH = - 3.0 mA IOL = 24 mA Test Conditions (Note 1) Guaranteed Input HIGH Voltage Guaranteed Input LOW Voltage VCC = MIN, IIN = - 18 mA VCC = MIN VCC = 4.75 V VCC = MIN
VCC = MAX, VIN = 2.7 V VCC = MAX, VIN = 7.0 V VCC = MAX, VIN = 0.5 V VCC = MAX, VOUT = 2.7 V VCC = MAX, VOUT = 0.5 V VCC = MAX, VOUT = 0 V VCC = MAX Dn - GND; OE = 4.5 V
NOTES: 1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable device type. 2. Not more than one output should be shorted at a time, nor for more than 1 second.
FAST AND LS TTL DATA 4-227
MC74F574
LOGIC DIAGRAM
D0 D1 D2 D3 D4 D5 D6 D7
CP CP Q D Q CP Q D Q CP Q D Q CP Q D Q CP Q D Q CP Q D Q CP Q D Q CP Q D Q
OE
O0
O1
O2
O3
O4
O5
O6
O7
AC ELECTRICAL CHARACTERISTICS
54 / 74F TA = + 25C VCC = + 5.0 V CL = 50 pF Symbol fMAX tPLH tPHL tPZH tPZL tPHZ tPLZ Parameter Maximum Clock Frequency Propagation Delay CP to On Output Enable Time Output Disable Time Min 100 2.5 2.5 3.0 3.0 1.5 1.0 Typ -- -- -- -- -- -- -- Max -- 8.5 8.5 9.0 9.0 5.5 5.5 74F TA = 0C to + 70C VCC = +5.0 V 10% CL = 50 pF Min 70 2.5 2.5 2.5 2.5 1.5 1.0 Max -- 8.5 8.5 10.0 10.0 6.5 6.5 Unit MHz ns ns ns
AC OPERATING CHARACTERISTICS
54 / 74F TA = + 25C VCC = + 5.0 V CL = 50 pF Symbol ts(H) ts(L) th(H) th(L) tw(H) tw(L) Parameter Setup Time, HIGH or LOW Dn to CP Hold Time, HIGH to LOW Dn to CP CP Pulse Width HIGH or LOW Min 2.5 2.0 2.0 2.0 5.0 5.0 Typ -- -- -- -- -- -- Max -- -- -- -- -- -- Min 2.5 3.0 2.0 2.0 5.0 5.0 74F TA = 0C to + 70C VCC = +5.0 V 10% CL = 50 pF Typ -- -- -- -- -- -- Max -- -- -- -- -- -- Unit ns ns ns
FAST AND LS TTL DATA 4-228

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