Technical data

Introduction
CP 486 ⋅ 00/14 VIPA GmbH 11
- Silicon Disk Additional Board
The different additional boards are plugged into the slot for the PC bus and thus, have a capacity
of up to 7MB. These silicon disk boards are available with FLASH-, SRAM- and EPROM
assembly.
The different types EPROM, SRAM, FLASH-PROM and OTP-ROM of the silicon disks differ
as follows:
- OTPROM-Disk is a read-only memory medium in the builtin mode comparable to a disk with
write protection. The OTPROM disk has to be programmed with a specific programming device.
The OTPROM card can be programmed only once and cannot be deleted again.
-EPROMdiskis a read-only memory medium in the builtin mode comparable to a disk with
write protection. EPROMs of this disk are generated with an additional program and
programmed, before inserting into the base, with an EPROM program available on the market.
EPROMs can be deleted by means of UV light.
- FLASH-PROM-Disk is a read-only and recordable memory medium in the builtin mode. The
FLASH-PROM-DISK can be deleted and recorded agian in the builtin mode. The FLASH
memory can only be completely deleted and recorded again (with 12V erase voltage). This
memory can be recorded anew approximately 10000 times.
-PEROMdiskis a read-only and recordable memory medium in the builtin mode. PEROM
modules can be deleted and recorded again in the buitin mode. Note: the PEROM meory can
only be completely deleted and recorded again (with 5V erase voltage). Only up to 1000 write
cycles are permitted.
- SRAM disk is a read-only able and recordable memory medium in the buitin mode comparable
to a recordable disk. But the read and write access is much more faster to the SRAM disk than to
a normal disk. The data remain backed up. The chip silicon disk is backed up approx. 100 days
by means of the accu of the CP486. The SRAM memory cards avail of an integrated,
exchangeable battery for approx. 100 days. So they can also be used as transportable me-mories.
The silicon disk additional boards have an own battery for nearly the same buffer time.