saa4955tj NXP Semiconductors, saa4955tj Datasheet - Page 21

• Manufacturer Part Number: saa4955tj
• Description: 2.9-mbit Field Memory
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1999 Apr 29
handbook, full pagewidth
handbook, full pagewidth
2.9-Mbit field memory
SWCK
and
SRCK
RSTW
and
RSTR
WE and IE
and
RE and OE
data
inputs
( 12)
data
outputs
( 12)
read 2 times delayed old data
enable
inputs
signal
signal
serial
clock
reset
data
write new data
D0 to D11
12
RSTW
SWCK
WE
high-Z
IE
16
15
14 to 3
17
18
1
SAA4955TJ
Fig.17 Cascade operation (signal connections).
Fig.18 Cascade operation (timing waveforms).
27 to 38
1
2
old
new
1
1
25
26
24
23
Q0 to Q11
RE
OE
RSTR
SRCK
3
2
new
old
2
2
21
12
D0 to D11
SWCK
RSTW
4
3
WE
old
new
3
3
IE
16
15
14 to 3
17
18
SAA4955TJ
4
5
new
old
4
4
27 to 38
6
5
old
new
5
25
26
24
23
5
MGK691
RSTR
SRCK
Q0 to Q11
RE
OE
Product specification
12
SAA4955TJ
6
7
old
new
6
6
MGK692
outputs
data
V IH
V IL
V IH
V IL
V IH
V IL
V IH
V IL
V IH
V IL