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TECHNICAL DATA
Octal d-type latch with three state outputs
IN74VHC373 integrated circuits are designed for using in up-to-date high-performance computers, high-level electronic equipment for consumer application. IN74VHC373 is identical in pinout to the IC series IN74HC373A, IN74HCT373A, IN74AC373A, IN74ACT373A. Input voltage levels are compatible with standard C-MOS levels. Output voltage levels are compatible with input levels of C-MOS, N-MOS and TTL ICs.
IN74VHC373
ORDERING INFORMATION IN74VHC373N Plastic IN74VHC373DW SOIC TA = -40 to 85 C for all packages
Features: * Supply voltage 2.0 - 5.5 V. * Low input current: 1.0 mkA; 0.1 mkA at = 25 . * Output current 8 mA. * Latchup current not less than 300 mA at = 85 . * Tolerable value of static potential not less than 2000V as per human body model (HBM) and not less than 200V as per machine model (). .
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IN74VHC373
IN74VHC373 truth table
Input Output A L H X Y L H Z
G
L L H Note -
H - high voltage level; L - low voltage level; X - any voltage level (low or high); Z - output in third state
Pins description in IN74VHC373 Pinout
OE Q0 D0 D1 Q1 Q2 D2 D3 Q3
01 02 03 04 05 06 07 08 09 20 19 18 17 16 15 14 13 12 11
Pin No. 01
Symbol
OE
Q0 D0 D1 Q1 Q2 D2 D3 Q3 GND LE Q4 D4 D5 Q5 Q6 D6 D7 Q7 Vcc
Description Input OUTPUT ENABLE Data output Data input Data input Data output Data output Data input Data input Data output Common output Recording enable input Data output Data input Data input Data output Data output Data input Data input Data output Supply output from voltage source
VCC Q7 D7 D6 Q6 Q5 D5 D4 Q4 LE
02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20
GND 10
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IN74VHC373
Absolute maximum conditions* Parameter, unit
Supply voltage, V Input voltage, V Output voltage, V Input diode current, mA Current of common output and supply output, mA Output current, mA Output diode current, mA Dissipated power, mW
Symbol min
VCC Vin Vout Iik Icc Iout Iok Pd -0.5 -0.5 -0.5 - - - - -
Value max
7.0 7.0 Vcc+0.5V -20 75 25 20 180
*Under absolute maximum conditions operation of microcircuit is not guaranteed. Operation is guaranteed under maximum conditions
Maximum conditions Parameter, unit Symbol min
Supply voltage, V Input voltage,V Output voltage, V Output current, mA Input rise and fall time, ns/V at Vcc = (3.3 0.3) V at Vcc = (5.0 0.5) V VCC Vin Vout Iout tLH, tHL 2.0 0 0 - 0 0
Value max
5.5 VCC VCC 8.0 100 20
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IN74VHC373
DC electrical characteristics
Value Symbo l VIH Parameter High input voltage Test conditions - VCC, V 2.0 25 C min 1.5 max - - 0.5 0.3Vcc - - - - - - 0.09 0.09 0.09 0.09 0.36 0.36 0.25 0.1 4.0 -40 to 85 C min max 1.5 - 0.7Vcc - - 1.9 2.9 4.4 5.4 2.48 3.80 - - - - - - - 0.5 0.3Vcc - - - - - - 0.1 0.1 0.1 0.1 0.44 0.44 2.5 1.0 40.0 uA Unit
V
3.0-5.5 0.7Vcc VIL Low input voltage - 2.0 3.0-5.5 2.0 3.0 4.5 5.5 3.0 4.5 2.0 3.0 4.5 5.5 - - 1.92 2.92 4.42 5.52 2.58 3.94 - - - - - - -
VOH High output voltage
VI = VIH or VIL IO = -50 mkA
VOL
Low output voltage
VI = VIH or VIL; IO = -4 mA VI = VIH or VIL; IO = -8 mA VI = VIH orVIL IO = 50 mkA
IOZ II ICC
VI = VIH or VIL 3.0 IO = 4 mA VI = VIH or VIL 4.5 IO = 8 mA Output current in VI = VIH or VIL 5.5 VO = VCC or 0V "off" state Input current VI = 5.5V or 0V 0 - 5.5 Consumption current VI =VCC or 0V 5.5
Noise characteristics (CL = 50 pF)
Parameter Symbol VOLP VOLV VIHD VILD Positive noise of low output voltage Negative noise of low output voltage Input dynamic high voltage Input dynamic low voltage VCC, V 5.0 5.0 5.0 5.0 min -0.9 3.5 Value max 0.9 1.5 Unit V
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IN74VHC373
AC electrical characteristics (tLH = tHL = 3.0 ns, RL = 1 kOhm)
Test conditi VCC, V ons 3.3 0.3 5.0 0.5 3.3 0.3 5.0 0.5 tPHZ , tPLZ Propagation delay time Fig.2 under transition from high, low level into off state tPZH , tPZL Propagation delay time Fig.2 under transition from off state into high, low level tSU Time of setting signal D Fig.3 relativey to LE 3.3 0.3 5.0 0.5 3.3 0.3 5.0 0.5 3.3 0.3 5.0 0.5 tH Retention time, D signal Fig.3 to LE 3.3 0.3 5.0 0.5 tW Pulse duration signal of LE Fig.3 3.3 0.3 5.0 0.5 tOSLH, tOSHL Propagation difference outputs delays between - 3.3 0.3 5.5 0.5 CL, pF 15 50 15 50 15 50 15 50 50 50 15 50 15 50 15 50 15 50 15 50 15 50 15 50 15 50 50 50 Value -40C to 25C 85C min max min max - 11.0 - 13.0 - 14.5 - 16.5 - 7.2 - 8.5 - 9.2 - 10.5 - 11.4 - 13.5 - 14.9 - 17.0 - 7.2 - 8.5 - 9.2 - 10.5 - 13.2 - 15.0 - - - - - 4.0 4.0 4.0 4.0 1.0 1.0 1.0 1.0 5.0 5.0 5.0 5.0 - - 9.2 11.4 14.9 8.1 10.1 - - - - - - - - - - - - 1.5 1.0 - - - - - 4.0 4.0 4.0 4.0 1.0 1.0 1.0 1.0 5.0 5.0 5.0 5.0 - - 10.5 13.5 17.0 9.5 11.5 - - - - - - - - - - - - 1.5 1.0
Symbol tPHL, tPLH
Parameter
Unit ns
Popagation delay time Fig. 1 when switching on, off from input LE to output Q From input D to output Q
Capacitance characteristics
Symbol CI CO CD Parameter Input capacity Output capacity Dynamic capacity Test conditions VI = 0 V orVCC VCC, V 5.0 5.0 5.0 Value 25 C min max 10 12 54 Unit pF pF pF
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IN74VHC373
- Time diagram of input and output pulses
tLH 0.9 Input 0.1 tPLH 0.5 0.5 0.1 tPHL GND VCC 0.5 0.5 0V tHL 0.9 VCC
Output
Fig. 1
tHL Input 0.9 0.5 0.1 tPZH Output 0.5 0.1
tLH 0.9 0.5
VCC
0V 0.9 tPHZ 0V VCC VOH
tPLZ Output 0.5 tPZL Fig.2 0.1
VOL
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IN74VHC373
Time diagram of input pulses
VCC Input D 0.5 tSU tH 0.5 GND VCC 0.5 tW 0.5 GND
Input LE
Fig.3
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IN74VHC373
N SUFFIX PLASTIC DIP (MS - 001AD)
A
Dimension, mm
20 11 B 1 10
Symbol A B C
MIN 24.89 6.1
MAX 26.92 7.11 5.33
F
L
D F
0.36 1.14 2.54 7.62 0 2.92 7.62 0.2 0.38
0.56 1.78
C -T- SEATING N G D 0.25 (0.010) M T K
PLANE
G H
H J
M
J K L M N
10 3.81 8.26 0.36
NOTES:
1. Dimensions "A", "B" do not include mold flash or protrusions. Maximum mold flash or protrusions 0.25 mm (0.010) per side.
D SUFFIX SOIC (MS - 013AC)
A 20 11
Dimension, mm Symbol MIN 12.6 7.4 2.35 0.33 0.4 1.27 9.53 0 0.1 0.23 10 0.25 8 0.3 0.32 10.65 0.75 MAX 13 7.6 2.65 0.51 1.27
H
B
P
A B
1
G
10 C R x 45
C D F
-TD 0.25 (0.010) M T C M K
SEATING PLANE
J
F
M
G H J K M P R
NOTES: 1. Dimensions A and B do not include mold flash or protrusion. 2. Maximum mold flash or protrusion 0.15 mm (0.006) per side for A; for B 0.25 mm (0.010) per side.
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