74F656A Datasheet, PDF (4/14 Pages) NXP Semiconductors – Octal buffer/driver with parity, non-inverting 3-State

NXP Semiconductors
74F656A
Octal buffer/driver with parity; non-inverting; 3-state
5. Pinning information
5.1 Pinning
Fig 4. Pin configuration
OE0 1
OE1 2
PI 3
D0 4
D1 5
D2 6
D3 7
D4 8
D5 9
D6 10
D7 11
GND 12
74F656A
24 V_CC
23 OE2
22 ΣO
21 ΣE
20 Q0
19 Q1
18 Q2
17 Q3
16 Q4
15 Q5
14 Q6
13 Q7
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5.2 Pin description
Table 2. Pin description
Symbol Pin
Description
OE0
OE1
PI
D0 to D7
GND
Q0 to Q7
ΣE
ΣO
OE2
V_CC
1
2
3
4, 5, 6, 7, 8, 9, 10, 11
12
20, 19, 18, 17, 16, 15, 14, 13
21
22
23
24
output enable input (active LOW)
output enable input (active LOW)
parity input
data input
ground (0 V)
data output
even parity output
odd parity output
output enable input (active LOW)
supply voltage
Unit load
HIGH/LOW
1.0/0.033
1.0/0.033
1.0/0.033
2.0/0.066
750/106.7
750/106.7
750/106.7
1.0/0.033
[1] One FAST Unit Load (UL) is defined as 20 μA in HIGH state, 0.6 μA in LOW state.
Load value^[1]
HIGH/LOW
20 μA/20 μA
20 μA/20 μA
20 μA/20 μA
40 μA/40 μA
15 mA/64 mA
15 mA/64 mA
15 mA/64 mA
20 μA/20 μA
74F656A_5
Product data sheet
Rev. 05 — 25 March 2010
© NXP B.V. 2010. All rights reserved.
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