SN74ALVC7803 Datasheet, PDF (9/14 Pages) Texas Instruments – 512 × 18 CLOCKED FIRST-IN, FIRST-OUT MEMORY

SN74ALVC7803
512 × 18
CLOCKED FIRST-IN, FIRST-OUT MEMORY
SDAS274 – JANUARY 1995
recommended operating conditions
" " " VCC = 3.3 V 0.3 V VCC = 3.3 V 0.3 V VCC = 3.3 V 0.3 V
MIN MAX
MIN MAX
MIN MAX
VIH High-level input voltage
VIL
Low-level input voltage
IOH
High-level output current,
Q outputs, flags
VCC = 3 V
2
0.8
–8
2
0.8
–8
2
0.8
–8
IOL
Low-level output current,
Q outputs, flags
VCC = 3 V
16
16
16
fclock Clock frequency
D0 – D17 high or low
50
9
40
10
25
14
WRTCLK high or
low
7
8
12
RDCLK high or low
7
8
12
tw
Pulse duration
PEN low
9
WRTEN1 high,
8
WRTEN2 low
9
12
8
12
OE1, OE2 low
9
9
12
RDEN low
8
8
12
D0 – D17 before
WRTCLK↑
5
5
5
WRTEN1, WRTEN2
before WRTCLK↑
5
5
5
OE1, OE2 before
RDCLK↑
5
6
6
tsu
Setup time
RDEN before
RDCLK↑
5
5
7
Reset: RESET low
before first
WRTCLK↑ and
6
RDCLK↑^†
6
6
PEN before
WRTCLK↑
6
6
6
D0 – D17 after
WRTCLK↑
0
0
0
WRTEN1, WRTEN2
after WRTCLK↑
0
0
0
th
Hold time
OE1, OE2, RDEN
after RDCLK↑
0
Reset: RESET low
after fourth
WRTCLK↑ and
2
RDCLK↑^†
0
0
2
2
PEN low after
WRTCLK↑
2
2
2
TA
Operating free-air temperature
† _{To permit the clock pulse to be utilized for reset purposes}
0
70
0
70
0
70
UNIT
V
V
mA
MHz
ns
ns
ns
°C
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