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PAL16L8AM Datasheet, PDF (10/18 Pages) Texas Instruments – STANDARD HIGH-SPEED PAL CIRCUITS | |||
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PAL16L8AM, PAL16R4AM, PAL16R6AM, PAL16R8AM
STANDARD HIGH-SPEED PAL® CIRCUITS
SRPS016 â D2705, FEBRUARY 1984 â REVISED MARCH 1992
electrical characteristics over recommended operating free-air temperature range
PARAMETER
VIK
VOH
VOL
IOZH
Outputs
I/O ports
IOZL
Outputs
I/O ports
II
I/O Ports
IIH
All others
IIL
IOSâ¡
ICC
OE input
All others
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
TEST CONDITIONS
II = â 18 mA
IOH = â 2 mA
IOL = 12 mA
VO = 2.7 V
VO = 0.4 V
VI = 5.5 V
VI = 2.7 V
VI = 0.4 V
VO = 0.5 V
VI = 0,
Outputs open
MIN TYPâ
2.4 3.2
0.25
â 30
75
MAX
â 1.5
0.4
20
100
â20
â100
0.2
100
25
â0.2
â0.1
â250
180
UNIT
V
V
V
µA
µA
mA
µA
mA
mA
mA
timing requirements
MIN
MAX UNIT
fclock
tw
Clock Frequency
Pulse duration (see Note 2)
Clock high
Clock low
0
25 MHz
15
ns
20
tsu
Setup time, input or feedback before CLKâ
25
ns
th
Hold time, input or feedback after CLKâ
0
ns
NOTE 2: The total clock period of clock high and clock low must not exceed clock frequency, fclock. The minimum pulse durations specified are
only for clock high or low, but not for both simultaneously.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
TEST CONDITION
MIN TYPâ MAX UNIT
fmax
tpd
I, I/O
O, I/O
25
45
MHz
15
30 ns
tpd
CLKâ
Q
R1 = 390 â¦,
10
20 ns
ten
OEâ
Q
R2 = 750 â¦,
15
25 ns
tdis
OEâ
ten
I, I/O
tdis
I, I/O
Q
O, I/O
O, I/O
See Figure 1
10
25 ns
14
30 ns
13
30 ns
â All typical values are at VCC = 5 V, TA = 25°C.
â¡ Not more than one output should be shorted at a time and the duration of the short circuit should not exceed one second. Set VO at 0.5 V to avoid
test equipment degradation.
10
⢠POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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