SAA7205 Philips Semiconductors, SAA7205 Datasheet - Page 65

• Manufacturer Part Number: SAA7205
• Description: MPEG-2 systems demultiplexer
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Note
1. Actual input capacitance maximum value may change because of package selection.
1997 Jan 21
handbook, full pagewidth
SRAM interface (see Figs 49 and 50)
T
t
t
t
t
t
t
t
t
T
t
t
t
su(A)
h(A)
W
su(D-W)
h(D-W)
su(OE-RAMA)
AV
dat(Z-OE)
su(A-OE)
su(WE-OE)
d(DAT)(h)
SYMBOL
cy(W)
cy(R)
MPEG-2 systems demultiplexer
Fig.29 Timing definition of the synchronous input interface signals with the SAA7206 (descrambler).
DCLK
PKTDAT7 to PKTDAT0
PKTDATV
PKTBAD/PKTBAD
PKTSYNC
write cycle time
address set-up to write enable
WE inactive to end of RAMA
pulse width
data set-up to write end
data hold from write end
OE to RAM A set-up time
address valid time
data 3-state to OE inactive
read cycle time
address set-up to OE
WE to OE set-up time
data hold delay time
PARAMETER
t i(r)
t i(r)(DCLK)
t i(su)
t i(f)
t i(h)s
t DCLKH
CONDITIONS
65
T cy(DCLK)
t i(f)(DCLK)
t DCLKL
86
12
12
35
32
12
69
12
123
10
0
5
MIN.
98
28
+5
24
135
24
60
Preliminary specification
MAX.
SAA7205H
MGG789
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
UNIT