SSTL16877DGG Просмотр технического описания (PDF) - Philips Electronics
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SSTL16877DGG Datasheet PDF : 8 Pages
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Philips Semiconductors
14-bit SSTL_2 registered driver with
differential clock inputs
PARAMETER MEASUREMENT INFORMATION
AC WAVEFORMS
CLK
VREF
VIH
VREF
tPLH
OUTPUT
VREF
tPHL
VREF
VIL
VOH
VOL
SW00338
Waveform 1. Propagation delay times inverting and
non-inverting outputs
RESET
OUTPUT
VREF
tPHL
VREF
VIH
VIL
VOH
VOL
SW00402
Waveform 2. Propagation delay RESET to output.
Product specification
SSTL16877
INPUT
tW
VIH
VREF
VREF
VIL
Waveform 3. Pulse duration
SW00339
VIH
TIMING INPUT
VREF
VIL
tsu
th
VIH
DATA INPUT
VREF
VREF
VIL
Waveform 4. Setup and hold times
SW00340
TEST CIRCUIT
TEST
POINT
VTT
25Ω = SSTL_2 Class II
25Ω 50Ω = SSTL_2 Class I
CL = 10pF or 30pF
NOTES:
CL includes probe and jig capacitance
All input pulses are supplied by generators having the following characteristics:
PRR ≤ 10MHz, ZO = 50Ω, tr ≤ 1.25ns/V, tf 1.25ns/V.
The outputs are measured one at a time with one transition per measurement.
VTT = VREF = VDDQ x 0.5
Figure 1. Load circuitry
SW00337
50pF
500 Ω
SW00336
Figure 2.
50pF
SW00335
Figure 3.
2000 Apr 20
6
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