INTEGRATED CIRCUITS
74F827
10-bit buffer/line driver, non-inverting (3-State)
74F828
10-bit buffer/line driver, inverting
(3-State)
Product specification |
1994 Dec 5 |
IC15 Data Handbook
Philips Semiconductors
Philips Semiconductors |
Product specification |
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Buffers |
74F827, 74F828 |
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74F827 10-bit buffer/line driver, non-inverting (3-State) 74F828 10-bit buffer/line driver, inverting (3-State)
FEATURES
•High impedance NPN base inputs for reduced loading (20μA in High and Low states)
•IIL is 20μA vs FAST family spec of 600μA and 1000μA for AMD 29827/29828 series
•Ideal where high speed, light bus loading and increased fan-in are required
•Controlled rise and fall times to minimize ground bounce
•Glitch free power-up in 3-State
•Flow through pinout architecture for microprocessor oriented applications
•Outputs sink 64mA
•74F827 available in SSOP type II package
DESCRIPTION
The 74F827 and 74F828 10-Bit buffers provide high performance bus interface buffering for wide data/address paths or buses carrying parity. They have NOR Output Enables (OE0, OE1) for maximum control flexibility.
The 74F827 and 74F828 are functionally and pin compatible to AMD AM29827 and AM29828. The 74F828 is an inverting version of 74F827.
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TYPICAL PROPAGATION |
TYPICAL SUPPLY |
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TYPE |
CURRENT |
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DELAY |
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(TOTAL) |
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74F827 |
6.0ns |
60mA |
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74F828 |
6.0ns |
55mA |
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ORDERING INFORMATION
PACKAGES |
COMMERCIAL RANGE |
DRAWING NUMBER |
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VCC = 5V 10%; TA = 0°C to +70°C |
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24-Pin Plastic DIP (300 mil) |
N74F827N, N74F828N |
SOT222-1 |
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24-Pin Plastic SOL |
N74F827D, N74F828D |
SOT137-1 |
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24-Pin Plastic SSOP Type II |
N74F827DB |
SOT340-1 |
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INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
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PINS |
DESCRIPTION |
74F(U.L.) |
LOAD VALUE |
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HIGH/LOW |
HIGH/LOW |
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D0-D9 |
Data inputs |
1.0/0.033 |
20μA/20μA |
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Output enable inputs (active Low) |
1.0/0.033 |
20μA/20μA |
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OE0-OE1 |
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Q0-Q9 |
Data outputs (74F827) |
1200/106.7 |
24mA/64mA |
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Data outputs ( 74F828) |
1200/106.7 |
24mA/64mA |
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Q0-Q9 |
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NOTES:
One (1.0) FAST Unit Load is defined as: 20μA in the High state and 0.6 mA in the Low state.
1994 Dec 05 |
2 |
853-0880 14382 |
Philips Semiconductors |
Product specification |
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Buffers |
74F827, 74F828 |
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PIN CONFIGURATION - 74F827
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1 |
24 |
VCC |
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OE0 |
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2 |
23 |
Q0 |
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D0 |
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D1 |
3 |
22 |
Q1 |
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D2 |
4 |
21 |
Q2 |
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D3 |
5 |
20 |
Q3 |
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D4 |
6 |
19 |
Q4 |
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D5 |
7 |
18 |
Q5 |
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D6 |
8 |
17 |
Q6 |
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D7 |
9 |
16 |
Q7 |
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D8 |
10 |
15 |
Q8 |
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D9 |
11 |
14 |
Q9 |
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GND |
12 |
13 |
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OE1 |
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SF00266 |
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PIN CONFIGURATION - 74F828
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1 |
24 |
VCC |
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OE0 |
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D0 |
2 |
23 |
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Q0 |
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D1 |
3 |
22 |
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Q1 |
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D2 |
4 |
21 |
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Q2 |
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D3 |
5 |
20 |
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Q3 |
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D4 |
6 |
19 |
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Q4 |
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D5 |
7 |
18 |
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Q5 |
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D6 |
8 |
17 |
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Q6 |
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D7 |
9 |
16 |
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Q7 |
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D8 |
10 |
15 |
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Q8 |
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D9 |
11 |
14 |
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Q9 |
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GND |
12 |
13 |
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OE1 |
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SF00269 |
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LOGIC SYMBOL - 74F827
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2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
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D0 |
D1 |
D2 |
D3 |
D4 |
D5 |
D6 |
D7 |
D8 |
D9 |
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1 |
OE0 |
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13OE1
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9
23 22 21 20 19 18 17 16 15 14
VCC = Pin 24
GND = Pin 12
SF00267
LOGIC SYMBOL (IEEE/IEC) - 74F827
1 |
& |
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13 |
EN1 |
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2 |
1 |
23 |
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3 |
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22 |
4 |
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21 |
5 |
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20 |
6 |
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19 |
7 |
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18 |
8 |
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17 |
9 |
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16 |
10 |
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15 |
11 |
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14 |
LOGIC SYMBOL - 74F828
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2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
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D0 |
D1 |
D2 |
D3 |
D4 |
D5 |
D6 |
D7 |
D8 |
D9 |
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1 |
OE0 |
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13OE1
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9
23 22 21 20 19 18 17 16 15 14
VCC = Pin 24
GND = Pin 12
SF00270
LOGIC SYMBOL (IEEE/IEC) - 74F828
1 |
& |
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13 |
EN1 |
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2 |
1 |
23 |
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3 |
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22 |
4 |
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21 |
5 |
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20 |
6 |
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19 |
7 |
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18 |
8 |
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17 |
9 |
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16 |
10 |
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15 |
11 |
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14 |
SF00268 |
SF00271 |
1994 Dec 05 |
3 |
Philips Semiconductors |
Product specification |
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Buffers |
74F827, 74F828 |
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LOGIC DIAGRAM 74F827
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D0 |
D1 |
D2 |
D3 |
D4 |
D5 |
D6 |
D7 |
D8 |
D9 |
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2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
1 |
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OE0 |
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13 |
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OE1 |
23 |
22 |
21 |
20 |
19 |
18 |
17 |
16 |
15 |
14 |
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Q0 |
Q1 |
Q2 |
Q3 |
Q4 |
Q5 |
Q6 |
Q7 |
Q8 |
Q9 |
VCC = Pin 24 |
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GND = Pin 12 |
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SF00272 |
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LOGIC DIAGRAM 74F828
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D0 |
D1 |
D2 |
D3 |
D4 |
D5 |
D6 |
D7 |
D8 |
D9 |
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2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
1 |
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OE0 |
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13 |
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OE1 |
23 |
22 |
21 |
20 |
19 |
18 |
17 |
16 |
15 |
14 |
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Q0 |
Q1 |
Q2 |
Q3 |
Q4 |
Q5 |
Q6 |
Q7 |
Q8 |
Q9 |
VCC = Pin 24 |
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GND = Pin 12 |
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SF00280 |
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FUNCTION TABLE
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INPUTS |
OUTPUTS |
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OPERATING MODE |
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74F827 |
74F828 |
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Dn |
Qn |
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OEn |
Qn |
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L |
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L |
L |
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H |
Transparent |
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L |
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H |
H |
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L |
Transparent |
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H |
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X |
Z |
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Z |
High impedance |
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H |
= |
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High voltage level |
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L |
= |
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Low voltage level |
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X |
= |
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Don't care |
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Z |
= |
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High impedance ªoffº state |
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ABSOLUTE MAXIMUM RATINGS
Operation beyond the limits set forth in this table may impair the useful life of the device. Unless otherwise noted these limits are over the operating free-air temperature range.
SYMBOL |
PARAMETER |
RATING |
UNIT |
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VCC |
Supply voltage |
±0.5 to +7.0 |
V |
VIN |
Input voltage |
±0.5 to +7.0 |
V |
IIN |
Input current |
±30 to +5 |
mA |
VOUT |
Voltage applied to output in High output state |
±0.5 to +VCC |
V |
IOUT |
Current applied to output in Low output state |
128 |
mA |
TA |
Operating free-air temperature range |
0 to + 70 |
°C |
Tstg |
Storage temperature range |
±65 to + 150 |
°C |
1994 Dec 05 |
4 |
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