epm9560wc208-20c Altera Corporation, epm9560wc208-20c Datasheet - Page 21

• Manufacturer Part Number: epm9560wc208-20c
• Description: Programmable Logic Device Family
• Manufacturer: Altera Corporation

Altera Corporation
By combining the pulse and shift times for each of the programming
stages, the program or verify time can be derived as a function of the TCK
frequency, the number of devices, and specific target device(s). Because
different ISP-capable devices have a different number of EEPROM cells,
both the total fixed and total variable times are unique for a single device.
Programming a Single MAX 9000 Device
The time required to program a single MAX 9000 device in-system can be
calculated from the following formula:
where: t
The ISP times for a stand-alone verification of a single MAX 9000 device
can be calculated from the following formula:
where: t
t
t
PR OG
VER
=
=
t
VPULSE
t
Cycle
f
t
Cycle
TCK
t
PROG
PPULSE
VER
VPULSE
PP ULSE
PTCK
VTCK
+
+
C ycle
--------------------------------
MAX 9000 Programmable Logic Device Family Data Sheet
Cyc le
------------------------------- -
= Programming time
= Sum of the fixed times to erase, program, and
= Number of TCK cycles to program a device
= TCK frequency
f
= Verify time
= Sum of the fixed times to verify the EEPROM cells
= Number of TCK cycles to verify a device
TC K
f
T CK
VTC K
verify the EEPROM cells
PTC K
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