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HD74LVC374A
Octal D-type Flip Flops with 3-state Outputs
REJ03D0355-0400Z (Previous ADE-205-113B (Z)) Rev.4.00 Jul. 27, 2004
Description
The HD74 LVC374A has eight edge trigger D type flip flops with three state outputs in a 20 pin package. Data at the D inputs meeting set up requirements are transferred to the Q outputs on positive going transitions of the clock input. When the clock input goes low, data at the D inputs will be retained at the outputs until clock input returns high again. When a high logic level is applied to the output control input, all outputs go to a high impedance state, regardless of what signals are present at the other inputs and the state of the storage elements. Low voltage and high-speed operation is suitable at the battery drive product (note type personal computer) and low power consumption extends the life of a battery for long time operation.
Features
* * * * * * * VCC = 2.0 V to 5.5 V All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V) All outputs VOUT (Max.) = 5.5 V (@VCC = 0 V or output off state) Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25 C) Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25C) High output current 24 mA (@VCC = 3.0 V to 5.5 V) Ordering Information
Package Type SOP-20 pin (JEITA) TSSOP-20 pin Package Code FP-20DAV TTP-20DAV Package Abbreviation FP T Taping Abbreviation (Quantity) EL (2,000 pcs/reel) ELL (2,000 pcs/reel)
Part Name HD74LVC374AFPEL HD74LVC374ATELL
Note: Please consult the sales office for the above package availability.
Function Table
Inputs G H L L L H: L: X: Z: : Q0 : CK X L D X L H X Output Q Z L H Q0
High level Low level Immaterial High impedance Low to high transition Level of Q before the indicated steady input conditions were established.
Rev.4.00 Jul. 27, 2004 page 1 of 7
HD74LVC374A
Pin Arrangement
G1 1Q 2 1D 3 2D 4 2Q 5 3Q 6 3D 7 4D 8 4Q 9 GND 10
GQ CK D GQ CK D
20 VCC 19 8Q 18 8D 17 7D 16 7Q 15 6Q 14 6D 13 5D 12 5Q 11 CK
CK D GQ
CK D GQ
GQ CK D
GQ CK D
CK D GQ
CK D GQ
(Top view)
Absolute Maximum Ratings
Item Supply voltage Input diode current Input voltage Output diode current Output voltage Output current VCC, GND current / pin Storage temperature Symbol VCC IIK VI IOK VO IO ICC or IGND Tstg Ratings -0.5 to 6.0 -50 -0.5 to 6.0 -50 50 -0.5 to VCC +0.5 -0.5 to 6.0 50 100 -65 to +150 Unit V mA V mA V mA mA C Conditions VI = -0.5 V VO = -0.5 V VO = VCC+0.5 V Output "H" or "L" Output "Z" or VCC:OFF
Note: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of which may be realized at the same time.
Rev.4.00 Jul. 27, 2004 page 2 of 7
HD74LVC374A
Recommended Operating Conditions
Item Supply voltage Input / output voltage Symbol VCC VI VO Ta IOH IOL Input rise / fall time *1 tr, tf Ratings 1.5 to 5.5 2.0 to 5.5 0 to 5.5 0 to VCC 0 to 5.5 -40 to 85 -12 -24*2 12 24*2 10 Unit V V V C mA mA ns/V Conditions Data hold At operation G, CK, D Output "H" or "L" Output "Z" or VCC:OFF VCC = 2.7 V VCC = 3.0 V to 5.5 V VCC = 2.7 V VCC = 3.0 V to 5.5 V
Operating temperature Output current
Notes: 1. This item guarantees maximum limit when one input switches.
Waveform: Refer to test circuit of switching characteristics.
2. Duty cycle 50%
Electrical Characteristics
Ta = -40 to 85C Item Input voltage Symbol VIH VIL Output voltage VOH VCC (V) 2.7 to 3.6 4.5 to 5.5 2.7 to 3.6 4.5 to 5.5 2.7 to 5.5 2.7 3.0 3.0 4.5 2.7 to 5.5 2.7 3.0 4.5 0 to 5.5 2.7 to 5.5 0 2.7 to 3.6 2.7 to 5.5 3.0 to 3.6 Min 2.0 VCCx0.7 -- -- VCC-0.2 2.2 2.4 2.2 3.8 -- -- -- -- -- -- -- -- -- -- Max -- -- 0.8 VCCx0.3 -- -- -- -- -- 0.2 0.4 0.55 0.55 5.0 5.0 20 10 10 500 Unit V V V IOH = -100 A IOH = -12 mA IOH = -24 mA V IOL = 100 A IOL = 12 mA IOL = 24 mA VIN = 5.5 V or GND VIN = VCC, GND VOUT = 5.5 V or GND VIN / VOUT = 5.5 V VIN / VOUT = 3.6 to 5.5 V VIN = VCC or GND VIN = one input at(VCC-0.6)V, other inputs at VCC or GND Test Conditions
VOL
Input current Off state output current Output leak current Quiescent supply current
IIN IOZ IOFF ICC ICC
A A A A A
Rev.4.00 Jul. 27, 2004 page 3 of 7
HD74LVC374A
Switching Characteristics
Ta = -40 to 85C Item Maximum clock frequency Propagation delay time Symbol fmax VCC (V) 2.7 3.30.3 5.00.5 2.7 3.30.3 5.00.5 2.7 3.30.3 5.00.5 2.7 3.30.3 5.00.5 2.7 3.30.3 5.00.5 2.7 3.30.3 5.00.5 2.7 3.30.3 5.00.5 2.7 3.30.3 5.00.5 2.7 2.7 Min 80.0 100.0 125.0 -- 1.5 -- -- 1.5 -- -- 1.5 -- 2.0 2.0 2.0 1.5 1.5 1.5 3.3 3.3 3.3 -- -- -- -- -- Typ -- 150.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 3.0 15.0 Max -- -- -- 9.5 8.5 7.0 9.5 8.5 7.0 8.5 7.5 6.5 -- -- -- -- -- -- -- -- -- -- 1.0 1.0 -- -- Unit MHz From (Input) To (Output)
tPLH tPHL tZH tZL tHZ tLZ tsu
ns
CK
Q
Output enable time
ns
G
Q
Output disable time
ns
G
Q
Setup time
ns
Hold time
th
ns
Pulse width
tw
ns
Between output pins skew*1 tOSLH tOSHL Input capacitance Output capacitance Note: CIN CO
ns
pF pF
1. This parameter is characterized but not tested.
tosLH = | tPLHm - tPLHn|, tosHL = | tPHLm - tPHLn|
Rev.4.00 Jul. 27, 2004 page 4 of 7
HD74LVC374A
Test Circuit
VCC VCC Output G Input 1Q to 8Q CL = 50 pF 1D to 8D Symbol t PLH / t PHL CK t su / t h / t w t ZH/ t HZ t ZL / t LZ S1
Vcc=2.7V, 3.30.3V Vcc=5.00.5V
500 S1 450 50 Scope
OPEN
*1 See under table
Pulse generator Zout = 50 Input Pulse generator Zout = 50
See Function Table
GND
OPEN GND 6V
OPEN GND 2xVcc
Note:
1. CL includes probe and jig capacitance.
Waveforms - 1
tr Input CK 10 % tr 90 % Input D 10 % t PLH Output Q Vref 10 % t PHL Vref VOL GND VOH 90 % 90 % Vref 10 % tf 90 % tf VIH Vref GND VIH
Rev.4.00 Jul. 27, 2004 page 5 of 7
HD74LVC374A Waveforms - 2
tr Input CK 10 % tw tsu Vref th VIH Input D Vref GND 90 % 90 % Vref Vref 10 % tw tf VIH Vref GND
Waveforms - 3
tf Input G 90 % Vref 10 % t ZL Waveform - A t ZH Waveform - B Vref Vref t HZ VOH - 0.3 V tr 90 % Vref 10 % t LZ VIH GND V OH1 VOL + 0.3 V VOL VOH V OL1 TEST VIH Vref VOH1 VOL1
Vcc=2.7V, 3.30.3V Vcc=5.00.5V
2.7 V 1.5 V 3V GND
Vcc 50%Vcc Vcc GND
Notes:
1. tr = 2.5 ns, tf = 2.5 ns 2. Input waveform : PRR = 10 MHz, duty cycle 50% 3. Waveform - A shows input conditions such that the output is "L" level when enable by the output control. 4. Waveform - B shows input conditions such that the output is "H" level when enable by the output control.
Rev.4.00 Jul. 27, 2004 page 6 of 7
HD74LVC374A
Package Dimensions
As of January, 2002
12.6 13 Max
20
Unit: mm
11
1
10
5.5
0.80 Max
2.20 Max
*0.20 0.05
0.20 7.80 + 0.30 -
1.15
1.27
*0.40 0.06
0.10 0.10
0 - 8
0.70 0.20
0.15
0.12 M
*Pd plating
Package Code JEDEC JEITA Mass (reference value)
FP-20DAV -- Conforms 0.31 g
As of January, 2002
Unit: mm
6.50 6.80 Max 20 11
1
10 0.65 1.0 6.40 0.20 0.65 Max
*0.20 0.05
0.13 M
4.40
*0.15 0.05
1.10 Max
0.10
0.07 +0.03 -0.04
0 - 8
0.50 0.10
*Pd plating
Package Code JEDEC JEITA Mass (reference value)
TTP-20DAV -- -- 0.07 g
Rev.4.00 Jul. 27, 2004 page 7 of 7
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