saa4955tj NXP Semiconductors, saa4955tj Datasheet - Page 10

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

Philips Semiconductors
CHARACTERISTICS
V
1999 Apr 29
Supply
V
V
I
I
I
I
I
Inputs (pins 3 to 18 and 23 to 26)
V
V
I
C
Outputs (pins 27 to 38)
V
V
I
C
Write cycle timing; note 2
T
t
t
t
t
t
t
t
t
t
t
t
t
t
DD
DD(tot)
DD
DDstd
DD(O)
DD(P)
LI
LO
W(SWCKH)
W(SWCKL)
su(D)
h(D)
su(RSTW)
h(RSTW)
su(WE)
h(WE)
W(WEL)
su(IE)
h(IE)
W(IEL)
t
SYMBOL
cy(SWCK)
DD
DD(P)
IH
IL
i
OH
OL
o
2.9-Mbit field memory
, V
= V
DD(O)
DD(O)
= V
supply voltages (pins 19 and 22)
supply voltage (pins 20 and 21)
total supply current
(I
operating supply current
stand-by supply current
supply current
supply current
HIGH-level input voltage
LOW-level input voltage
input leakage current
input capacitance
HIGH-level output voltage
LOW-level output voltage
output leakage current
output capacitance
SWCK cycle time
SWCK HIGH pulse width
SWCK LOW pulse width
set-up time data inputs
(D0 to D11)
hold time data inputs (D0 to D11) see Fig.3
set-up time RSTW
hold time RSTW
set-up time WE
hold time WE
WE LOW pulse width
set-up time IE
hold time IE
IE LOW pulse width
transition time (rise and fall)
DD(tot)
DD(P)
= I
= 3.0 to 3.6 V; T
PARAMETER
DD
+ I
DD(O)
+ I
DD(P)
amb
= 0 to 70 C; 3 ns input transition times; unless otherwise specified.
)
minimum write/read
cycle; outputs open
minimum write/read cycle
after 1 RSTW/RSTR
cycle; WE, RE and
OE LOW
minimum write/read
cycle; outputs open
V
f = 1 MHz; V
I
I
V
RE and OE LOW
f = 1 MHz; V
see Fig.3
see Fig.3
see Fig.3
see Fig.3
see Fig.3
see Fig.3
see Fig.7
see Fig.7
see Fig.7
see Fig.8
see Fig.8
see Fig.8
see Fig.3
OH
OL
I
O
= 0 V to V
= 4.2 mA
= 0 V to V
= 5 mA
CONDITIONS
10
DD(P)
I
O
DD(Q)
= 0 V
= 0 V
;
3.0
3.0
2.0
2.4
26
7
7
5
3
5
3
5
3
8
5
3
8
0.5
10
10
MIN.
3.3
3.3
22
20
3
2
0
3
TYP.
(1)
3.6
5.5
70
60
10
10
1
V
+0.8
+10
7
0.4
+10
10
30
DD(P)
Product specification
SAA4955TJ
MAX.
+ 0.3 V
V
V
mA
mA
mA
mA
mA
V
pF
V
V
pF
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
A
A
UNIT