PI3B4010 Datasheet, PDF (4/6 Pages) Pericom Semiconductor Corporation – 3.3V, High-Bandwidth, 40:10-Bit DDR Mux/Demux NanoSwitch

PI3B4010
3.3V, High Bandwidth, 40:10-Bit,
DDR Mux/Demux NanoSwitch _{112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233}
Switching Characteristics (over operating range over recommended operating free-air temperature range).
Parameter
Description
t_IY
t_SY
t_PZL
t_PLZ
t_SK(o)
t_SK(p)
Propagation Delay^(2,3) A_N to B_N w/Z_O = 50 Ohms
Bus Select Time - SEL_N to A_N, B_N
Bus Enable Time - SEL_N to A_N, B_N
Bus Disable Time - SEL_N to A_N, B_N
Output skew between center ports (A₄ & A₅) to any other port⁽²⁾
Skew between opposite transitions of the same output (It_PHL - t_PLHI)⁽²⁾
Conditions
–
–
–
–
–
–
Min.
–
0.5
0.5
0.5
–
–
Com
Typ
0.3
–
–
–
0.1
0.1
Max.
–
3.0
3.0
3.0
0.2
0.2
Units
ns
Notes:
1. See test circuit and waveforms.
2. This parameter is guaranteed by design.
3. The bus switch contributes no propagational delay other than the RC delay of the ON resistance of the switch and the load
capacitance. The time constant for the switch alone is of the order of 0.75ns for 50pF load. Since this time constant is much smaller
than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the
bus switch when used in a system is determined by the driving circuit on the driving side of the switch and its interaction with the
load on the driven side.
Test Circuits for All Outputs⁽¹⁾
VCC
5.0V
Pulse
VIN
Generator
55Ω
D.U.T ^{VOUT 55Ω}
RT
500Ω
8pF
CL
500Ω
Switch Positions
Test
Disable LOW, Enable LOW (output on A side)
Disable HIGH, Enable HIGH (output on A side)
Disable/Enable High (output on B side) & Prop Delay
Switch
5.0V
GND
Open
Notes:
1. C_L = Load capacitance: includes jig and probe capacitance.
2. R_T = Termination resistance: should be equal to Z_OUT of the Pulse Generator
3. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
4. All input impulses are supplied by generators having the following characteristics: PRR ≤ MHz, Z_O = 50Ω, t_R ≤ 2.5ns, t_F ≤ 2.5ns.
5. The outputs are measured one at a time with one transition per measurement.
4
PS8571A
12/11/02