sae81c80a Infineon Technologies Corporation, sae81c80a Datasheet - Page 3

• Manufacturer Part Number: sae81c80a
• Description: Cmos Dual-port Ram
• Manufacturer: Infineon Technologies Corporation

Pin Definitions and Functions
Pin No.
7
8
9
10
11
12
13
14
06
37
36
35
34
33
32
31
30
38
15
29
5
39
4
40
3
2
41
42
Semiconductor Group
Symbol Function
AD10
AD11
AD12
AD13
AD14
AD15
AD16
AD17
A18
AD20
AD21
AD22
AD23
AD24
AD25
AD26
AD27
A28
ALE1
ALE2
RD1
RD2
WR1
WR2
CS1
CS1
CS2
CS2
Address 8 port 1
Address 8 port 1
Address latch enable port 1
Address latch enable port 2
These signals are for separating data and addresses on the bus.
The address is stored on the falling edge of the signal.
Read signal port 1 (active low)
Read signal port 2 (active low)
Write signal port 1 (active low)
Write signal port 2 (active low)
Chip select port 1
Chip select port 1 (active low)
Chip select port 2
Chip select port 2 (active low)
The chip-select inputs select a port when the two associated inputs
are on active level.
Data and address bus
port 1
Data and address bus
port 2
3
SAE 81C80 A