Pm49FL002 / 004
PMC
AC CHARACTERISTICS (CONTINUED)
FWH/LPC INTERFACE CLOCK WAVEFORM
tCYC
tHIGH
0.6 VCC
tL O W
0.5 VCC
0.4 VCC
0.3 VCC
0.4 VCC p-to-p
(minimum)
0.2 VCC
FWH/LPC INTERFACE MEASUREMENT CONDITION PARAMETERS
Symbol
Value
0.6 VCC
0.2 VCC
0.4 VCC
0.4 VCC
Units
1
VTH
V
V
V
V
1
VTL
VTEST
1
VMAX
Input Signal Edge Rate
1 V/ns
Note: 1. The input test environment is done with 0.1 VCC of overdrive over VIH and VIL. Timing parameters must
be met with no more overdrive that this. VMAX specifies the maximum peak-to-peak waveform allowed
for measuring input timing. Production testing may use different voltage values, but must correlate
results back to these parameter.
FWH/LPC MEMORY READ/WRITE OPERATIONS CHARACTERISTICS
Symbol
TCYC
Parameter
Min
30
7
Max
Units
ns
Clock Cycle Time
Input Set Up Time
ns
TSU
TH
Input Hold Time
0
ns
Clock to Data Out
2
11
28
ns
TVAL
TON
TOFF
Clock to Active Time (float to active delay)
Clock to Inactive Time (active to float delay)
2
ns
ns
Issue Date: December, 2003 Rev: 1.4
Programmable Microelectronics Corp.
37
PMC [ PMC-SIERRA, INC ]
