|
|
Part: 74LCX14T
Category:
Description:
Company:
Datasheet: Download 74LCX14T datasheet File size : 201 kB
Request For quote: Find where to buy 74LCX14T
Datasheet text preview:
74LCX14
LOW VOLTAGE CMOS HEX SCHMITT INVERTER WITH 5V TOLERANT INPUTS
PRELIMINARY DATA
s s
s
s
s s
s
s
s s
5V TOLERANT INPUTS HIGH SPEED: tPD = 6.5 ns (MAX.) at VCC = 3.0V POWER-DOWN PROTECTION ON INPUTS AND OUTPUTS SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24 mA (MIN) PCI BUS LEVELS GUARANTEED AT 24mA BALANCED PROPAGATION DELAYS: tPLH tPHL OPERATING VOLTAGE RANGE: VCC (OPR) = 2.0V to 3.6V (1.5V Data Retention) PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 14 LATCH-UP PERFORMANCE EXCEEDS 500mA ESD PERFORMANCE: HBM >2000V; MM > 200V
M (Micro Package)
T (TSSOP Package)
ORDER CODES : 74LCX14M 74LCX14T AC/ACT family, combined with a lower power consumption. Pin configuration and function are the same as those of the L CX04 but the LCX14 has histeresys between the positive and negative input threshold typically o f 0.8V. This together with its schmitt trigger function allows it to be used on line receivers with slow rise/fall input segnals. All inputs and outputs are equipped with protection circuits against s tatic discharge, giving them 2KV ESD immunity and transient excess voltage.
DESCRIPTION The LCX14 is a low voltage CMOS HEX SCHMITT INVERTER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for low power and high speed 3.3V applications; it can be interfaced to 5V signal enviroment for inputs. It has same speed performance at 3.3V than 5V,
PIN CONNECTION AND IEC LOGIC SYMBOLS
January 1997
1/8
74LCX14
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
P IN N o 1, 3, 5, 9, 11, 13 2, 4, 6, 8, 10, 12 7 14 S Y M BO L 1A to 6A 1Y to 6Y GND VC C NA M E AND F UNC T I O N Dat a In puts Dat a Ou t uts Grou nd (0V) Pos it ive Su pply Vo lt age
TRUTH TABLE
A L H Y H L
ABSOLUTE MAXIMUM RATINGS
S y mb o l VCC VI VO VO II K IOK IO ICC IGND Tstg TL Supply Vo lt age DC In put Volta ge DC Ou tpu t Vo lt age ( VCC= 0V) DC Ou tpu t Vo lt age ( High or L ow S tat e) (not e1) DC In put Diode Curr ent DC Ou tpu t D iode C u rrent (n ot e2) DC Ou tpu t So u rce/ Si nk Current DC Su pply Curr ent per S upply P in DC Gr ound Current per S upply Pin Stor age T emperat ur e Lead T empe ratu re (10 se c) P arame t er V al u e -0.5 to + 7.0 -0.5 to + 7.0 -0.5 to + 7.0 -0.5 t o VCC + 0.5 - 50 ± 50 ± 50 ± 100 ± 100 -65 to +150 300 Un i t V V V V mA mA mA mA mA
o o
C C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. 1) IO absolute maximum rating must be observed 2) VO VCC
2/8
74LCX14
RECOMMENDED OPERATING CONDITIONS
Sy m b o l VCC VI VO VO IOH, IOL IOH, IOL Top dt/dv In put V oltage Ou tp ut Vo lt age (VCC = 0V ) Ou tp ut Vo lt age (High o r L ow S t at e) High or L ow Level O utput C ur rent (V CC = 3. 0 t o 3.6V ) High or L ow Level O utput C ur rent (V CC = 2. 7 t o 3.0V ) Op er ating T emperat ur e: In put T ra nsit ion R ise o r Fall R a te ( VCC = 3.0 V) ( note 2) P ara met er Su pply Volt age (note 1 ) V al u e 2.0 to 3.6 0 to 5.5 0 to 5.5 0 to VCC ± 24 ± 12 -40 to +85 0 to 10 Un i t V V V V mA mA
o
C
ns/V
1) Truth Table guaranteed: 1.5V to 3.6V 2) VIN from 0.8V to 2.0V
DC SPECIFICATIONS
S ym b o l P a ra m e t er V CC (V ) Vt+ VtVH VOH Pos it ive In put Th reshold Negativ e I nput Th reshold Hys te ris is High Level O ut put Volta ge 3.0 3.0 3.0 2.7 to 3.6 2.7 3.0 VOL Low L evel Outp ut Volt age 2.7 to 3.6 2.7 3.0 3.0 II Ioff ICC Input Leakage C urrent Power O f f Leak age C u rrent Quies cent Supply C u rrent 2. 7 t o 3. 6 0 2.7 to 3.6 VI = V I H or VIL IO=-12 mA IO=-18 mA IO=-24 mA VI = V I H or VIL IO=100 µA IO=12 mA IO=16 mA IO=24 mA VI = 0 to 5.5 V VI or VO = 5.5V VI = VCC or GND VI or VO = 3.6 to 5.5V ICC ICC inc r. per input 2.7 to 3.6 VIH = VCC -0.6V T est C o n d i t i o n s V al u e - 40 t o 85 C Mi n. 1.2 0.6 0.4 IO=-100 µA V CC - 0. 2 2.2 2.4 2.2 0.2 0.4 0.4 0.55 ±5 100 10 ±10 500 µA µA µA µA V V M ax. 2.2 1.5 1.2 V V V
o
Unit
DYNAMIC SWITCHING CHARACTERISTICS
S ym b o l P arame t er V CC (V) VOLP VOLV Dynam ic Low V oltag e Quiet O utput (not e 1 ) 3.3 C L = 50 pF V IL = 0 V V I H = 3 . 3V T est Co n d i t i o n s M in. V al u e T A = 25 o C T yp . 0.8 -0.8 V M a x. Unit
1) Number of outputs defined as "n". Measured with "n-1" outputs switching from HIGH to LOW or LOW to HIGH. The remaining output is measured in the LOW state.
3/8
74LCX14
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 , Input tr = t f = 2.5 ns)
S ym b o l P ar am e t er V CC ( V) tPLH tPHL tOSLZ tOSHL Propagati on D e lay T ime Out put to Ou tp ut Sk ew T im e (not e 1 , 2) 2.7 3.0 to 3.6 3.0 to 3.6 T est Co n d i t i o n W av ef o rm V al u e - 40 t o 85 C M i n . M ax. 6.0 1.5 6.5 1.0
o
Unit
1
ns ns
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switching in the same direction, either HIGH or LOW (tOSLH = |tPLHm - tPLHn|, tOSHL = |tPHLm - tpHLn|) 2) Parameter guaranteed by design
CAPACITIVE CHARACTERISTICS
S ym b o l P arame t er V CC (V ) CIN C PD Input Capacita nce Power D is sipat ion Capac ita nce (note 1) 3.3 3.3 VIN = 0 to VCC fIN = 10MHz VIN = 0 or VCC T est C o n d i t i o n s Min . Va l u e TA = 25 oC Typ. 6 48 M ax. pF pF Unit
1) CPD is defined as the value of the IC's internal equivalent capacitance which is calculated from the operating current consumption without load. Average operting current can be obtained by the following equation. ICC(opr) = CPD · VCC · fIN + ICC/n (per circuit)
4/8
74LCX14
TEST CIRCUIT
CL = 50 pF or equivalent (includes jig and probe capacitance) RL = 500 or equivalent RT = ZOUT of pulse generator (typically 50)
WAVEFORM: PROPAGATION DELAYS (f=1MHz; 50% duty cycle)
5/8
Others parts begin by 74
74-1 74-2 74-3 74-4 74-5 74-6 74-7 74-8 74-9 74-10 74-11 74-12 74-13 74-14 74-15 74-16 74-17 74-18 74-19 74-20 74-21 74-22 74-23 74-24 74-25 74-26 74-27 74-28 74-29 74-30 74-31 74-32 74-33 74-34 74-35 74-36 74-37 74-38 74-39 74-40 74-41 74-42 74-43 74-44 74-45 74-46 74-47 74-48 74-49 74-50 74-51 74-52 74-53 74-54 74-55 74-56 74-57 74-58 74-59 74-60 74-61 74-62
|
|
|
