參數(shù)資料
型號(hào)： SAA4955
廠商： NXP Semiconductors N.V.
英文描述： 2.9-Mbit field memory
中文描述： 2.9兆內(nèi)存領(lǐng)域
文件頁(yè)數(shù)： 9/28頁(yè)
文件大小： 188K
代理商： SAA4955
1999 Apr 29
9
Philips Semiconductors
Product specification
2.9-Mbit field memory
SAA4955TJ
Cascade operation
If a longer delay is needed, the total storage depth can be
increased beyond 2949264 bits by cascading several
SAA4955TJs. For details see the interconnection and
timing diagrams (Figs 17 and 18).
Test mode operation
The SAA4955TJ incorporates a test mode not intended for
customer use. If WE and RSTW are held HIGH
continuously for 1024 SWCK clock cycles, the
SAA4955TJ will enter test mode. It will exit test mode if WE
is LOW for a single SWCK cycle or if RSTW is LOW for
2 SWCK clock cycles.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
Notes
1.
Machine model: equivalent to discharging a 200 pF capacitor through a 0
series resistor (‘0
’ is actually
0.75
μ
H + 10
).
Human body model: equivalent to discharging a 100 pF capacitor through a 1500
series resistor.
2.
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN.
0.5
0.5
0.5
MAX.
UNIT
V
DD
, V
DD(O)
supply voltages
V
DD(P)
supply voltage for protection circuits
V
I
input voltage
+5
+5.5
+5.5
+3.8
+5
+3.8
200
+0.5
V
V
V
V
V
V
mA
V
V
DD(P)
= 5 V
V
DD
= V
DD(O)
= V
DD(P)
= 3.3 V
0.5
V
DD(P)
= 5 V
V
DD
= V
DD(O)
= V
DD(P)
= 3.3 V
0.5
V
O
output voltage
0.5
I
DD(tot)
V
total supply current
voltage difference between GND,
GND
O
and GND
P
short circuit output current
total power dissipation
storage temperature
junction temperature
ambient temperature
electrostatic handling
0.5
I
O
P
tot
T
stg
T
j
T
amb
V
es
20
0
0
150
2000
50
750
+150
125
70
+200
+2000
mA
mW
°
C
°
C
°
C
V
V
note 1
note 2
SYMBOL
PARAMETER
CONDITIONS
VALUE
UNIT
R
th(j-a)
thermal resistance from junction to ambient
in free air
60
K/W
相關(guān)PDF資料
PDF描述
SAA4955TJ 2.9-Mbit field memory
SAA4956TJ 2.9-Mbit field memory with noise reduction
SAA4960 Integrated PAL comb filter
SAA4963 Integrated NTSC comb filter
SAA4963T Integrated NTSC comb filter
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA4955TJ 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:2.9-Mbit field memory
SAA4956TJ 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:2.9-Mbit field memory with noise reduction
SAA4960 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Integrated PAL comb filter
SAA4963 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Integrated NTSC comb filter
SAA4963T 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Integrated NTSC comb filter
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