CD74FCT244M96 Datasheet, PDF (3/11 Pages) Texas Instruments – BiCMOS OCTAL BUFFERS/LINE DRIVERS WITH 3-STATE OUTPUTS

CD74FCT244, CD74FCT244AT
BiCMOS OCTAL BUFFERS/LINE DRIVERS
WITH 3-STATE OUTPUTS
SCBS722B – JULY 2000 – REVISED AUGUST 2003
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
MIN
MIN MAX
VIK
II = –18 mA
4.75 V
–1.2
VOH
IOH = –15 mA
4.75 V
2.4
2.4
VOL
IOL = 64 mA
4.75 V
0.55
II
VI = VCC or GND
5.25 V
±0.1
IOZ
IOS†
VO = VCC or GND
VI = VCC or GND,
VO = 0
5.25 V
5.25 V
±0.5
–60
–60
ICC
VI = VCC or GND,
IO = 0
5.25 V
8
∆ICC‡
One input at 3.4 V,
Other inputs at VCC or GND
5.25 V
1.6
Ci
VI = VCC or GND
10
Co
VO = VCC or GND
15
† _{Not more than one output should be tested at a time, and the duration of the test should not exceed 100 ms.}
‡ _{This is the increase in supply current for each input at one of the specified TTL voltage levels, rather than 0 V or VCC.}
MAX
–1.2
0.55
±1
±10
80
1.6
10
15
UNIT
V
V
V
mA
mA
mA
mA
mA
pF
pF
switching characteristics over recommended operating free-air temperature range,
V_CC = 5 V ± 0.25 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
CD74FCT244
TA = 25°C
TYP
MIN MAX
CD74FCT244AT
TA = 25°C
TYP
MIN MAX
UNIT
tpd
A
ten
OE
tdis
OE
Y
4.5
1.5 6.5
3.8
1.5 5.3 ns
Y
6
1.5
8
4.8
1.5 6.5 ns
Y
5
1.5
7
4.5
1.5 5.8 ns
noise characteristics, V_CC = 5 V, C_L = 50 pF, T_A = 25°C
PARAMETER
VOL(P)
VOH(V)
VIH(D)
VIL(D)
Quiet output, maximum dynamic VOL
Quiet output, minimum dynamic VOH
High-level dynamic input voltage
Low-level dynamic input voltage
MIN TYP MAX UNIT
1
V
0.5
V
2
V
0.8 V
operating characteristics, V_CC = 5 V, T_A = 25°C
PARAMETER
Cpd Power dissipation capacitance
TEST CONDITIONS
No load, f = 1 MHz
TYP UNIT
35 pF
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