IDT74FCT16952ATPF 查看數據表（PDF） - Integrated Device Technology
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IDT74FCT16952ATPF Datasheet PDF : 8 Pages
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IDT73720 /A16-BIT TRI-PORT BUS EXCHANGER
COMMERCIAL TEMPERATURE RANGE
AC ELECTRICAL CHARACTERISTICS (VCC = 5.0V ± 5%, TA = 0° to +70°C)
Symbol
Parameter
Test Conditions(1)
73720A
Min.(2) Max.
tPLH X to Y & X to Z Latches enabled
tPHL
tPLH Y to X & Z to X Latches enabled
tPHL
tPLH Latch Enable to Y & Z Port
tPHL
LEXY to Y
LEXZ to Z
CL = 50pF
2.0
6.0
RL = 500 Ohms
2.0
6.0
2.0
7.0
tPLH Latch Enable to X
tPHL
LEYX to X
LEZX to X
2.0
7.0
tPLH Path to X Port Propagation Delay
tPHL
tHZ Y & Z Port Disable Time (T/R, PATH, OEU, OEL)(3)
tLZ
tZH Y & Z Port Enable Time (T/R, PATH, OEU, OEL)(3)
tZL
tHZ X-Port DisableTime (T/R, OEU, OEL)(3)
tLZ
tZH X-Port Enable Time (T/R, OEU, OEL)(3)
tZL
tSU Port to LE Set-up time
tH
Port to LE Hold time
tW
LE Pulse Width, HIGH or LOW(2)
2.0
7.0
2.0
8.5
2.0
9.5
2.0
8.5
2.0
9.5
2.0
—
1.5
—
3
—
NOTES:
1. All timings are referenced to 1.5 V.
2. Minimum Delay Times, Enable Times, Disable Times and Pulse Width are guaranteed by design, but not tested.
3. Bus turnaround times are guaranteed by design, but not tested. (T/R enable/disable times).
73720
Min.(2)
Max.
2.0
7.5
2.0
7.5
2.0
8.5
2.0
8.5
2.0
8.5
2.0
9.5
2.0
10.5
2.0
9.5
2.0
10.5
2.0
—
1.5
—
4
—
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
2527 tbl 07
TEST CIRCUITS AND WAVEFORMS
VCC
7.0V
VIN
Pulse
Generator
V OUT
D.U.T.
500Ω
50pF
500Ω
RT
CL
2527 drw 07
SWITCH POSITION
Test
Switch
Disable LOW
Closed
Enable LOW
All Other Tests
Open
DEFINITIONS:
2527 tbl 08
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse
Generator.
Figure 5. Test Circuit for all outputs
11.5
7
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