Datasheet

C505/C505C/C505A/C505CA
Data Sheet 76 12.00
AC Characteristics of Programming Mode (C505A-4E and C505CA-4E only)
V
DD
= 5 V ± 10 %; V
PP
= 11.5 V ± 5%; T
A
= 25 °C ± 10 °C
Parameter Symbol Limit Values Unit
min. max.
PALE pulse width
t
PAW
35 – ns
PMSEL setup to PALE rising edge
t
PMS
10 –
Address setup to PALE, PROG
, or PRD
falling edge
t
PAS
10 – ns
Address hold after PALE, PROG
, or PRD
falling edge
t
PAH
10 – ns
Address, data setup to PROG
or PRD t
PCS
100 – ns
Address, data hold after PROG
or PRD t
PCH
0 – ns
PMSEL setup to PROG
or PRD t
PMS
10 – ns
PMSEL hold after PROG
or PRD t
PMH
10 – ns
PROG
pulse width t
PWW
100 – µs
PRD
pulse width t
PRW
100 – ns
Address to valid data out
t
PAD
– 75 ns
PRD
to valid data out t
PRD
– 20 ns
Data hold after PRD
t
PDH
0 – ns
Data float after PRD
t
PDF
– 20 ns
PROG
high between two consecutive PROG
low pulses
t
PWH1
1 – µs
PRD
high between two consecutive PRD low
pulses
t
PWH2
100 ns
XTAL clock period
t
CLKP
83.3 500 ns