SDA5250 Datasheet, PDF (15/143 Pages) Siemens Semiconductor Group – TVTEXT 8-Bit Microcontroller

SDA 525x
Table 2
Additional PINS for ROMless-Version
Symbol
Pin Nr.
Pin Nr.
P-MQFP-80-1 P-LCC-84-2
A0
37
29
A1
35
27
A2
34
26
A3
32
24
A4
31
22
A5
29
20
A6
27
18
A7
25
16
A8
26
17
A9
28
19
A10
33
25
A11
30
21
A12
23
14
A13
24
15
A14
22
13
A15
21
12
A16
19
10
D0
39
31
D1
41
33
D2
43
35
D3
44
36
D4
42
34
D5
40
32
D6
38
30
D7
36
28
STOP_OCF –
56
ENE
–
57
RD
–
7
WR
–
6
ALE
17
8
PSEN
–
23
Input (I)
Output (O)
Supply (S)
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
O
O
O
O
Function
Address bus for external
memory
Data bus for external memory
Control Signals for data
memory extension and
emulation.
Semiconductor Group
15
1998-04-08