SN74LVT244B_101 Datasheet, PDF (4/19 Pages) Texas Instruments – 3.3-V ABT OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS

SN74LVT244B
3.3-V ABT OCTAL BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCAS354J − FEBRUARY 1994 − REVISED SEPTEMBER 2003
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP^†
V_IK
V_OH
V_OL
Control inputs
I_I
Data inputs
I_off
I_OZH
I_OZL
V_CC = 2.7 V,
V_CC = 2.7 V to 3.6 V,
V_CC = 2.7 V,
V_CC = 3 V,
V_CC = 2.7 V
V_CC = 3 V
V_CC = 0 or 3.6 V,
V_CC = 3.6 V,
V_CC = 3.6 V
V_CC = 0,
V_CC = 3.6 V,
V_CC = 3.6 V,
I_I = −18 mA
I_OH = −100 μA
I_OH = −8 mA
I_OH = −32 mA
I_OL = 100 μA
I_OL = 24 mA
I_OL = 16 mA
I_OL = 32 mA
I_OL = 64 mA
V_I = 5.5 V
V_I = V_CC or GND
V_I = V_CC
V_I = 0
V_I or V_O = 0 to 4.5 V
V_O = 3 V
V_O = 0.5 V
V_CC−0.2
2.4
2
I_OZPU
V_CC = 0 to 1.5 V, V_O = 0.5 V to 3 V, OE = don’t care
I_OZPD
V_CC = 1.5 V to 0, V_O = 0.5 V to 3 V, OE = don’t care
V_CC = 3.6 V,
Outputs high
I_CC
I_O = 0,
Outputs low
V_I = V_CC or GND
Outputs disabled
ΔI_CC‡
V_CC = 3 V to 3.6 V, One input at V_CC − 0.6 V,
Other inputs at V_CC or GND
C_i
V_I = 3 V or 0
4
C_o
V_O = 3 V or 0
7
† _{All typical values are at VCC = 3.3 V, TA = 25°C.}
‡ _{This is the increase in supply current for each input that is at the specified TTL voltage level, rather than VCC or GND.}
MAX
−1.2
0.2
0.5
0.4
0.5
0.55
10
±1
1
−5
±100
5
−5
±100
±100
0.19
5
0.19
0.2
UNIT
V
V
V
μA
μA
μA
μA
μA
μA
mA
mA
pF
pF
switching characteristics over recommended operating free-air temperature range, C_L = 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
t_PLH
A
t_PHL
t_PZH
OE
t_PZL
t_PHZ
OE
t_PLZ
† _{All typical values are at VCC = 3.3 V, TA = 25°C.}
TO
(OUTPUT)
Y
Y
Y
V_CC = 3.3 V
± 0.3 V
MIN TYP^† MAX
1.1 2.3 3.5
1.3 2.1 3.3
1.1 2.5 4.5
1.4 2.7 4.4
1.9 2.8 4.4
1.8 2.9 4.4
V_CC = 2.7 V
MIN MAX
3.8
3.6
5.3
4.9
4.5
4.4
UNIT
ns
ns
ns
4
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