74LVC2244ABQ-74LVC2244APW Fast Delivery |IC PHOENIX CO.,LIMITED

74LVC2244ABQ ,Octal buffer/line driver; 30 惟 series termination; 5 V tolerant input/output; 3-stateFeatures and benefits 5 V tolerant inputs/outputs, for interfacing with 5 V logic Wide supply vol ..
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74LVC2244APW ,Octal buffer/line driver with 30 ohm series termination resistors; 5 V input/output tolerant; 3-stateFEATURES DESCRIPTION• 5 V tolerant inputs/outputs for interfacing with 5 V logic The 74LVC2244A is ..
74LVC2244APW ,Octal buffer/line driver with 30 ohm series termination resistors; 5 V input/output tolerant; 3-stateLogic diagram74LVC2244A All information provided in this document is subject to legal disclaimers. ..
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74LVC2244ABQ-74LVC2244APW
Octal buffer/line driver; 30 惟 series termination; 5 V tolerant input/output; 3-state
1. General description
The 74LVC2244A is an octal non-inverting buffer/line driver with 3-state outputs. The
3-state outputs are controlled by the output enable input pins 1OE and 2OE. A HIGH on
pin nOE causes the outputs to assume a high-impedance OFF-state. Schmitt trigger
action at all inputs makes the circuit highly tolerant for slower input rise and fall times. The
device is designed with 30  series termination resistors in both HIGH and LOW output
stages to reduce line noise.
Inputs can be driven from either 3.3 Vor5 V devices. When disabled, up to 5.5 V can be
applied to the outputs. These features allow the use of these devices as translators in
mixed 3.3V and5 V applications.
2. Features and benefits 5 V tolerant inputs/outputs, for interfacing with 5 V logic Wide supply voltage range from 1.2 Vto 3.6V CMOS low-power consumption Direct interface with TTL levels Integrated 30  termination resistors Complies with JEDEC standard: JESD8-7A (1.65Vto 1.95V) JESD8-5A (2.3Vto 2.7V) JESD8-C/JESD36 (2.7Vto 3.6V) ESD protection: HBM JESD22-A114F exceeds 2000V MM JESD22-A115B exceeds 200V CDM JESD22-C101E exceeds 1000V Specified from 40 C to +85 C and 40 C to +125C
74L VC2244A
Octal buffer/line driver; 30  series termination; 5 V tolerant
input/output; 3-state
Rev. 5 — 3 November 2011 Product data sheet
NXP Semiconductors 74LVC2244A
Octal buffer/line driver; 30  series termination; 3-state
3. Ordering information
4. Functional diagram
Table 1. Ordering information
74LVC2244AD 40Cto +125C SO20 plastic small outline package; 20 leads;
body width 7.5 mm
SOT163-1
74LVC2244ADB 40Cto +125C SSOP20 plastic shrink small outline package; 20 leads;
body width 5.3 mm
SOT339-1
74LVC2244APW 40Cto +125C TSSOP20 plastic thin shrink small outline package; 20 leads;
body width 4.4 mm
SOT360-1
74LVC2244ABQ 40Cto +125C DHVQFN20 plastic dual in-line compatible thermal enhanced
very thin quad flat package; no leads; 20 terminals;
body 2.5  4.5  0.85 mm
SOT764-1
NXP Semiconductors 74LVC2244A
Octal buffer/line driver; 30  series termination; 3-state
5. Pinning information
5.1 Pinning
5.2 Pin description
Table 2. Pin description
1OE 1 output enable input (active LOW)
2OE 19 output enable input (active LOW)
1A[0:3] 2, 4, 6, 8 data input
2A[0:3] 17, 15, 13, 11 data input
1Y[0:3] 18, 16, 14, 12 data output
2Y[0:3] 3, 5, 7, 9 data output
GND 10 ground (0 V)
VCC 20 supply voltage
NXP Semiconductors 74LVC2244A
Octal buffer/line driver; 30  series termination; 3-state
6. Functional description
[1] H = HIGH voltage level
L = LOW voltage level
X = don’t care
Z = high-impedance OFF-state
7. Limiting values
[1] The minimum input voltage ratings may be exceeded if the input current ratings are observed.
[2] The output voltage ratings may be exceeded if the output current ratings are observed.
[3] For SO20 packages: above 70 C derate linearly with 8 mW/K.
For (T)SSOP20 packages: above 60 C derate linearly with 5.5 mW/K.
For DHVQFN20 packages: above 60 C derate linearly with 4.5 mW/K.
Table 3. Functional table[1] L H Z
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
VCC supply voltage 0.5 +6.5 V
IIK input clamping current VI < 0 V 50 - mA input voltage [1] 0.5 +6.5 V
IOK output clamping current VO > VCC or VO < 0 V - 50 mA output voltage output HIGH or LOW state [2] 0.5 VCC + 0.5 V
output 3-state [2] 0.5 +6.5 V output current VO = 0 V to VCC - 50 mA
ICC supply current - 100 mA
IGND ground current 100 - mA
Tstg storage temperature 65 +150 C
Ptot total power dissipation Tamb = 40 C to +125 C [3] -500 mW
NXP Semiconductors 74LVC2244A
Octal buffer/line driver; 30  series termination; 3-state
8. Recommended operating conditions
9. Static characteristics
Table 5. Recommended operating conditions
VCC supply voltage 1.65 - 3.6 V
functional 1.2 - - V input voltage 0 - 5.5 V output voltage output HIGH or LOW state 0 - VCC V
output 3-state 0 - 5.5 V
Tamb ambient temperature 40 - +125 C
t/V input transition rise
and fall rate
VCC = 1.65 V to 2.7 V 0 - 20 ns/V
VCC = 2.7 V to 3.6 V 0 - 10 ns/V
Table 6. Static characteristics
At recommended operating conditions. Voltages are referenced to GND (ground = 0 V).
VIH HIGH-level
input voltage
VCC = 1.2 V 1.08 - - 1.08 - V
VCC = 1.65 V to 1.95 V 0.65  VCC - - 0.65  VCC -V
VCC = 2.3 V to 2.7 V 1.7 - - 1.7 - V
VCC = 2.7 V to 3.6 V 2.0 - - 2.0 - V
VIL LOW-level
input voltage
VCC = 1.2 V - - 0.12 - 0.12 V
VCC = 1.65 V to 1.95 V - - 0.35  VCC -0.35  VCCV
VCC = 2.3 V to 2.7 V - - 0.7 - 0.7 V
VCC = 2.7 V to 3.6 V - - 0.8 - 0.8 V
VOH HIGH-level
output
voltage =VIHorVIL= 100 A;
VCC =1.65Vto3.6V
VCC 0.2 VCC -VCC 0.3 - V= 2mA; VCC = 1.65 V 1.2 - - 1.05 - V= 4mA; VCC = 2.3V 1.8 - - 1.65 - V= 6mA; VCC = 2.7 V 2.2 - - 2.05 - V= 9mA; VCC = 2.7 V 2.4 - - 2.25 - V= 12 mA; VCC = 3.0 V 2.2 - - 2.0 - V
VOL LOW-level
output
voltage =VIHorVIL= 100 A;
VCC= 1.65Vto 3.6 V - 0.2 - 0.3 V =2mA; VCC = 1.65 V - - 0.45 - 0.65 V =4mA; VCC = 2.3V - - 0.6 - 0.8 V =6mA; VCC = 2.7 V - - 0.4 - 0.6 V =12mA; VCC = 3.0 V - - 0.55 - 0.8 V input leakage
current
VCC = 3.6 V; VI =5.5V orGND - 0.1 5- 20 A
NXP Semiconductors 74LVC2244A
Octal buffer/line driver; 30  series termination; 3-state
[1] All typical values are measured at VCC=3.3 V (unless stated otherwise) and Tamb =25C.
IOZ OFF-state
output
current =VIHor VIL; VCC= 3.6 V; =5.5V orGND; 0.1 5- 20 A
IOFF power-off
leakage
current
VCC = 0 V; VIorVO = 5.5V - 0.1 10 - 20 A
ICC supply
current
VCC = 3.6 V; VI =VCCor GND; =0A
-0.1 10 - 40 A
ICC additional
supply
current
per input pin;
VCC= 2.7Vto 3.6V; =VCC 0.6 V; IO =0A 5 500 - 5000 A input
capacitance
VCC= 0 V to 3.6V; =GNDto VCC
-4.0 - - - pF
Table 6. Static characteristics …continued
At recommended operating conditions. Voltages are referenced to GND (ground = 0 V).
NXP Semiconductors 74LVC2244A
Octal buffer/line driver; 30  series termination; 3-state
10. Dynamic characteristics
[1] Typical values are measured at Tamb =25 C and VCC = 1.2 V, 1.8 V, 2.5 V, 2.7 V, and 3.3 V respectively.
[2] tpd is the same as tPLH and tPHL.
ten is the same as tPZL and tPZH.
tdis is the same as tPLZ and tPHZ.
[3] Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
[4] CPD is used to determine the dynamic power dissipation (PDin W). =CPD VCC2fi N+ (CL VCC2fo) where: = input frequency in MHz; fo= output frequency in MHz= output load capacitance inpF
VCC= supply voltage in Volts= number of inputs switching
(CL VCC2fo)= sum of the outputs
Table 7. Dynamic characteristics
Voltages are referenced to GND (ground=0 V). For test circuit see Figure7.
tpd propagation delay nAnto nYn; see Figure5 [2]
VCC = 1.2 V - 35 - - - ns
VCC = 1.65 V to 1.95 V 1.9 7.8 17.7 1.9 18.6 ns
VCC = 2.3 V to 2.7 V 1.5 4.1 8.7 1.5 9.6 ns
VCC = 2.7 V 1.5 4.1 6.4 1.5 7.0 ns
VCC = 3.0 V to 3.6 V 1.5 3.5 5.5 1.5 8.0 ns
ten enable time nOEto nYn; see Figure6 [2]
VCC = 1.2 V - 38 - - - ns
VCC = 1.65 V to 1.95 V 2.3 8.9 19.7 2.3 20.7 ns
VCC = 2.3 V to 2.7 V 1.9 5.0 10.3 1.9 11.4 ns
VCC = 2.7 V 1.5 5.1 8.1 1.5 9.0 ns
VCC = 3.0 V to 3.6 V 1.0 4.0 7.1 1.0 10.5 ns
tdis disable time nOEto nYn; see Figure6 [2]
VCC = 1.2 V - 9.0 - - - ns
VCC = 1.65 V to 1.95 V 2.9 4.7 9.3 2.9 9.8 ns
VCC = 2.3 V to 2.7 V 1.0 2.6 5.0 1.0 5.6 ns
VCC = 2.7 V 1.5 3.4 6.4 1.5 7.0 ns
VCC = 3.0 V to 3.6 V 1.5 3.2 5.4 1.5 8.0 ns
tsk(o) output skew time VCC= 3.0 V to 3.6V [3] - - 1.0 - 1.5 ns
CPD power dissipation
capacitance
per input; VI =GNDto VCC [4]
VCC = 1.65 V to 1.95 V - 1.8 - - - pF
VCC = 2.3 V to 2.7 V - 4.9 - - - pF
VCC = 3.0 V to 3.6 V - 7.7 - - - pF
NXP Semiconductors 74LVC2244A
Octal buffer/line driver; 30  series termination; 3-state
11. Waveforms

Partno	Mfg	Dc	Qty	Available	Descript
74LVC2244ABQ	PHILIPS	N/a	21072	avai	Octal buffer/line driver; 30 惟 series termination; 5 V tolerant input/output; 3-state
74LVC2244APW	NXP	N/a	500	avai	Octal buffer/line driver with 30 ohm series termination resistors; 5 V input/output tolerant; 3-state