Datasheet

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TIMING REQUIREMENTS
SWITCHING CHARACTERISTICS
OPERATING CHARACTERISTICS
SN74ALVCH162268
12-BIT TO 24-BIT REGISTERED BUS EXCHANGER
WITH 3-STATE OUTPUTS
SCES018L – AUGUST 1995 – REVISED SEPTEMBER 2004
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1)
V
CC
= 2.5 V V
CC
= 3.3 V
V
CC
= 2.7 V
± 0.2 V ± 0.3 V
UNIT
MIN MAX MIN MAX MIN MAX
f
clock
Clock frequency 120 125 150 MHz
t
w
Pulse duration, CLK high or low 3.3 3.3 3.3 ns
A data before CLK ↑ 4.5 4 3.4
B data before CLK ↑ 0.8 1.2 1
SEL before CLK ↑ 1.4 1.6 1.3
t
su
Setup time ns
CLKENA1 or CLKENA2 before CLK ↑ 3.6 3.4 2.8
CLKEN1B or CLKEN2B before CLK ↑ 3.2 3 2.5
OE before CLK ↑ 4.2 3.9 3.2
A data after CLK ↑ 0 0 0.2
B data after CLK ↑ 1.3 1.2 1.3
SEL after CLK ↑ 1 1 1
t
h
Hold time ns
CLKENA1 or CLKENA2 after CLK ↑ 0.1 0.1 0.4
CLKEN1B or CLKEN2B after CLK ↑ 0.1 0 0.5
OE after CLK ↑ 0 0 0.2
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1)
V
CC
= 2.5 V V
CC
= 3.3 V
V
CC
= 1.8 V V
CC
= 2.7 V
FROM TO
± 0.2 V ± 0.3 V
PARAMETER UNIT
(INPUT) (OUTPUT)
TYP MIN MAX MIN MAX MIN MAX
f
max
120 125 150 MHz
B 8 1.6 6.1 5.9 1.8 5.4
A (1B) 8 1.6 5.8 5.4 1.7 4.8
t
pd
CLK ns
A (2B) 8 1.6 5.8 5.3 1.8 4.8
A ( SEL) 11 2.5 7.3 6.5 2.4 5.8
B 12 2.7 7.2 6.8 2.6 6.1
t
en
CLK ns
A 9 2 6.2 5.6 1.8 5.1
B 10 2.8 7.2 6.1 2.5 5.9
t
dis
CLK ns
A 9 2 6.5 5.4 2.1 5
T
A
= 25 ° C
V
CC
= 2.5 V V
CC
= 3.3 V
PARAMETER TEST CONDITIONS UNIT
TYP TYP
Outputs enabled 87 120
C
pd
Power dissipation capacitance C
L
= 50 pF, f = 10 MHz pF
Outputs disabled 80.5 118
8