pef2045 Infineon Technologies Corporation, pef2045 Datasheet - Page 4

• Manufacturer Part Number: pef2045
• Description: Memory Time Switch Cmos Mtsc
• Manufacturer: Infineon Technologies Corporation

Pin Definitions and Functions (cont’d)
Pin No.
P-LCC
25
26
27
29
30
31
32
33
34
35
36
37
38
40
41
42
43
44
Semiconductor Group
Pin No.
P-DIP
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Symbol
WR
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
OUT7
OUT6
OUT5
OUT4
OUT3
OUT2
OUT1
OUT0
CLK
Input (I)
Output (O)
I
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
0
0
0
0
0
0
0
0
I
4
Function
Write: This signal initiates a write operation.
The WR input is internally sampled only if CS is
active. In this case the MTSC loads an internal
register with data from the data bus at the rising
edge of WR. WR is active low.
Data Bus: The data bus is used for
communication between the MTSC and a
processor.
PCM-Output Port: Serial data is sent by these
lines at standard CMOS or TTL levels. These
pins can be tristated.
Clock: 4096- or 8192-kHz device clock.
PEB 2045
PEF 2045