epm3064a Altera Corporation, epm3064a Datasheet - Page 15

• Manufacturer Part Number: epm3064a
• 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 3000A Device
The time required to program a single MAX 3000A device in-system can
be calculated from the following formula:
where: t
The ISP times for a stand-alone verification of a single MAX 3000A device
can be calculated from the following formula:
where: t
t
t
PROG
VER
=
=
t
VPULSE
t
Cycle
f
t
Cycle
TCK
t
PROG
PPULSE
VER
VPULSE
PPULSE
PTCK
VTCK
+
MAX 3000A Programmable Logic Device Family Data Sheet
+
Cycle
--------------------------------
Cycle
------------------------------- -
= 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
TCK
f
TCK
VTCK
verify the EEPROM cells
PTCK
15