SN74BCT2952 Datasheet, PDF (4/6 Pages) Texas Instruments – OCTAL BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS

SN74BCT2952
OCTAL BUS TRANSCEIVER AND REGISTER
WITH 3ĆSTATE OUTPUTS
SCBS063A − FEBRUARY 1991 − REVISED NOVEMBER 1993
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
fclock
tw
tsu
Clock frequency
Pulse duration, CLK high or low
Setup time before CLK↑
th
Hold time after CLK↑
A or B
CLKENAB or CLKENBA
A or B
CLKENAB or CLKENBA
VCC = 5 V,
TA = 25°C
MIN MAX
125
4
2.5
2
1.5
2.5
MIN MAX UNIT
125 MHz
4
ns
2.5
ns
2
1.5
ns
2.5
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, C_L = 50 pF (unless otherwise noted) (see Note 3)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
TA = 25°C
MIN TYP MAX
MIN MAX UNIT
fmax
tPLH
tPHL
CLKBA or CLKAB
A or B
tPZH
tPZL
OEBA or OEAB
A or B
tPHZ
tPLZ
OEBA or OEAB
A or B
NOTE 3: Load circuits and voltage waveforms are shown in Section 1.
125
125
MHz
3.5 5.7 7.5 3.5
9
ns
5
7 9.5
5 10.5
2.9 5.2 6.9 2.9 8.2
ns
5.2 7.6 11.4 5.2 12.9
3.5 5.3 7.1 3.5 8.4
ns
2.7 4.3
6 2.7
7
2−4
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