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Saia-Burgess Controls AG
Manual
Manual PCD 1 / PCD 2 Series
│ Document 26
/
737 E
N22 │ 2013-11-26
CPUs and expansion housings
3-40
Expansion of user memory
3
3.14.5 PCD1.M125 and PCD1.M135
The user memory for these CPUs can be expanded as follows :
CPU Typ
Expansion option
Available memory for
extension memory
1)
PCD1.M1x5
RAM: 512 KBit / 128 KByte
EPROM: 128 KBit / 128 KByte
Flash-EPROM: 448 KBit / 112 KByte
128 KByte
128 KByte
128 KByte
1) The base memory released by the extended memory can be configured as extension memory and
used to store texts and DBs
As the price differences between the different memory chips are very small, we rec-
ommend the use of the following types:
Memory type
Item-no.
Typical codes
Size
RAM
4 502 7013 0
1)
4 502 7175 0
1)
BS62LV1025 PC-70
LP621024D-70LL
SRM20100LLC70
HY628100ALP-70
GM76C8128CLL-70
MEL M5M51008BP-70L
HM628512LP-5
KM684000BLP-SL
K6T4008C1B-DB55
1 Mbit / 128 Kbytes
4 Mbits / 512 Kbytes
EPROM
2)
4 502 7126 0
AM27C010-90 DC
NM27C01Q-90
M27C1001-10F1
1 Mbit / 128 Kbytes
Flash EPROM
3)
4 502 7141 0
4 502 7224 0
AM29F010-70PC
SBE29F040
AM29F040B-90PC
1 Mbit / 112 Kbytes
3)
4 Mbits / 448 Kbytes
3)
1) Where RAM components not approved by SBC are used, there is a risk of losing data
2) The use of EPROMs is obsolete; use Flash EPROM instead
3) To hold the configuration, a portion of memory is lost, so for this chip,112 Kbytes rather than 128 are available to
the user