74AVC16835 Просмотр технического описания (PDF) - Philips Electronics
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74AVC16835 Datasheet PDF : 10 Pages
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Philips Semiconductors
18-bit Registered Driver (3-State)
Preliminary specification
74AVC16835
AC CHARACTERISTICS
GND = 0V; tr = tf ≤ 2.0ns; CL = 30pF
LIMITS
SYMBOL
PARAMETER
WAVEFORM VCC = 3.3 ± 0.3V
VCC = 2.5 ± 0.2V VCC = 1.8 ± 0.15V VCC = 1.2V UNIT
MIN TYP1 MAX MIN TYP1 MAX MIN TYP1 MAX
TYP
Propagation delay
An to Yn
1, 7
0.7 1.7 2.5 0.8 2.0 3.0 1.0 2.6 4.5
5.2
tPHL/tPLH
Propagation delay
LE to Yn
2, 7
0.7 1.8 2.7 0.8 2.2 3.3 1.0 2.8 5.0
5.6
ns
Propagation delay
CP to Yn
3, 7
0.7 1.7 2.5 0.8 2.0 3.0 1.0 2.6 4.5
5.2
tPZH/tPZL
3-State output enable
time OE to Yn
6, 7
1.0 2.3 4.0 1.0 2.5 4.5 1.5 3.0 6.5
5.5
ns
tPHZ/tPLZ
3-State output disable
time OE to Yn
6, 7
1.0 2.3 3.5 1.0 2.2 4.0 1.5 3.5 6.5
5.5
ns
tW
CP pulse width HIGH
or LOW
3, 7
1.0 –
– 1.2 –
– 2.0 –
–
LE pulse width HIGH
2, 7
1.0 –
– 1.2 –
– 2.0 –
–
–
ns
–
Set-up time An to CP
5, 7
0.3 –
– 0.4 –
– 0.5 –
–
tSU
Set-up time An to LE
4, 7
0.3 –
– 0.4 –
– 0.5 –
–
–
ns
–
Hold time An to CP
5, 7
0.3 –
– 0.4 –
– 0.5 –
–
th
ns
Hold time An to LE
4, 7
0.3 –
– 0.4 –
– 0.5 –
–
Fmax
Maximum clock pulse
frequency
3, 7
500 –
– 400 –
– 250 –
–
NOTES:
1. All typical values are measured at Tamb = 25°C and at VCC = 1.8 V, 2.5 V, 3.3 V.
MHz
AC WAVEFORMS FOR VCC = 3.0V TO 3.6V RANGE
VM = 0.5 VCC
VX = VOL + 0.300 V
VY = VOH – 0.300 V
VOL and VOH are the typical output voltage drop that occur with the
output load.
VI = VCC
AC WAVEFORMS FOR VCC = 2.3 V TO 2.7 V AND
VCC < 2.3 V RANGE
VM = 0.5 VCC
VX = VOL + 0.15 V
VY = VOH – 0.15 V
VOL and VOH are the typical output voltage drop that occur with the
output load.
VI = VCC
VI
LE INPUT
GND
VM
tW
tPHL
VM
tPLH
VOH
Yn OUTPUT
VM
VOL
NOTE: VM = 0.5VCC at VCC = 2.3 to 2.7V
SH00134
Waveform 2. Latch enable input (LE) pulse width, the latch
enable input to output (Yn) propagation delays.
VI
An
INPUT
VM
GND
VOH
tPHL
tPLH
Yn
VM
OUTPUT
VOL
NOTE: VM = 0.5VCC at VCC = 2.3 to 2.7 V
SH00132
Waveform 1. Input (An) to output (Yn) propagation delay
1999 Jul 23
6
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