DS1217M Dallas Semiconducotr, DS1217M Datasheet - Page 3

• Manufacturer Part Number: DS1217M
• Description: Nonvolatile Read/Write Cartridge
• Manufacturer: Dallas Semiconducotr

REMOTE CONNECTION VIA A RIBBON
CABLE
Existing systems which contain 28-pin bytewide sock-
ets can be retrofitted using a 28-pin DIP plug. The DIP
plug, AMP Part Number 746616-2, can be inserted into
the 28-pin site after the memory is removed. Connection
to the cartridge is accomplished via a 28-pin cable con-
nected to a 30-contact card edge connector, AMP Part
CARTRIDGE NUMBERING Table 1
ADDRESS INPUT PATTERN Table 2
X = See Table 3
BANK SELECT TABLE Table 3
BANK
SELECTED
BANKS OFF
BANK 0
BANK 1
BANK 2
BANK 3
BANK 4
BANK 5
BANK 6
ADDRESS
INPUTS
PART NO.
DS1217M 1/2-25
DS1217M 1-25
DS1217M 2-25
DS1217M 3-25
DS1217M 4-25
A10
A11
A8
A9
11
0
1
1
1
1
1
1
1
A8 BIT SEQUENCE
0
1
0
1
0
12
X
0
0
0
0
0
0
0
1
0
1
0
1
13
X
0
0
0
0
1
1
1
2
1
0
1
0
14
X
0
0
1
1
0
0
1
3
0
1
0
1
15
X
0
1
0
1
0
1
0
4
0
1
0
1
DENSITY
5
0
1
0
1
128K x 8
156K x 8
384K x 8
512K x 8
64K x 8
6
1
0
1
0
BIT SEQUENCE
Number 499188-4. The 28-pin ribbon cable must be
right-justified, such that positions A1 and B1 are left dis-
connected. For applications where the cartridge is in-
stalled or removed with power applied, both ground con-
tacts (A1 and B1) on the card edge connector should be
grounded to further enhance data integrity. Access time
push-out may occur as the distance between the car-
tridge and the driving circuitry is increased.
BANK
BANK 7
BANK 8
BANK 9
BANK 10
BANK 11
BANK 12
BANK 13
BANK 14
BANK 15
7
1
0
1
0
8
0
1
0
1
9
1
1
1
0
1
1
1
1
1
1
1
1
1
10
0
0
0
1
A8 BIT SEQUENCE
0
1
1
1
1
1
1
1
1
11
NO. OF BANKS
X
0
1
0
12
1
0
0
0
0
1
1
1
1
X
0
1
0
12
16
2
4
8
13
X
0
1
0
1
0
0
1
1
0
0
1
1
14
X
1
0
1
030598 3/8
DS1217M
1
0
1
0
1
0
1
0
1
15
X
1
0
1