74F632QC NSC [National Semiconductor], 74F632QC Datasheet - Page 2

• Manufacturer Part Number: 74F632QC
• Description: 32-Bit Parallel Error Detection and Correction Circuit
• Manufacturer: NSC [National Semiconductor]

Logic Symbol
Unit Loading Fan Out
Connection Diagrams
CB
DB
OEB
LEDBO
OECB
S
ERR
MERR
Pin Names
0
0
0
S
–CB
–DB
0
1
–OEB
6
Order Number DP8406QV (74F632QC)
31
3
See NS Package Number V52A
Check Word Bit Input
or TRI-STATE Output
Data Word Bit Input
or TRI-STATE Output
Output Enable Data Bits
Output Latch Enable Data Bit
Output Enable Check Bit
Select Pins
Single Error Flag
Multiple Error Flag
for LCC and PCC
Pin Assignment
Description
52-Pin
150 40 (33 3)
150 40 (33 3)
HIGH LOW
TL F 9579–3
3 5 1 083
3 5 1 083
50 33 3
50 33 3
1 0 1 0
1 0 1 0
1 0 1 0
1 0 1 0
U L
2
54F 74F
b
b
3 mA 24 mA (20 mA)
3 mA 24 mA (20 mA)
70 A
70 A
NC No internal connection
20 A
20 A
20 A
20 A
Output I
b
b
Input I
1 mA 20 mA
1 mA 20 mA
b
b
b
b
b
b
IH
OH
650 A
650 A
0 6 mA
0 6 mA
0 6 mA
0 6 mA
Order Number DP8406V (74F632VC)
I
IL
I
See NS Package Number V68A
OL
TL F 9579 – 1
for LCC and PCC
Pin Assignment
68-Pin
TL F 9579– 8