SAA5249GP/E PHILIPS [NXP Semiconductors], SAA5249GP/E Datasheet - Page 14

• Manufacturer Part Number: SAA5249GP/E
• Description: Integrated VIP and Teletext with Background Memory Controller IVT1.1BMCX
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
1996 Nov 07
Timing
D
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
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t
t
SYMBOL
RC
RP
RAS
CAS
ASR
RAH
ASC
CAH
RCD
RAD
RSH
CSH
CRP
DZO
r
WCS
WCH
DS
DH
RAC
CAC
AA
RCS
RCH
RRH
RAL
OFF1
CDD
, t
Integrated VIP and Teletext with
Background Memory Controller
RAM INTERFACE
f
read or write cycle time
RAS precharge time
RAS pulse width
CAS pulse width
row address set-up time
row address hold time
column address set-up time
column address hold time
RAS to CAS delay time
RAS to column address delay
time
RAS hold time
CAS hold time
CAS to RAS precharge time
CAS set-up time from data input
rise and fall times
write set-up time
write command hold time
data input set-up time
data input hold time
access time from RAS
access time from CAS
access time from address
read command set-up time
read command hold time to CAS
read command hold time to RAS
column address to RAS lead time
output buffer turn-off time
CAS to data input delay time
PARAMETER
CONDITIONS
14
344
125
194
113
30
50
50
50
130
60
15
260
60
200
10
193
116
193
42
165
0
95
193
0
55
90
20
25
MIN.
380
140
210
133
60
60
60
60
148
74
60
286
70
225
15
212
137
212
62
183
35
108
212
10
65
133
30
35
TYP.
Preliminary specification
415
155
230
153
80
92
75
70
160
105
70
300
80
280
20
235
150
235
80
220
40
120
235
20
100
150
40
45
MAX.
SAA5249
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
UNIT