UPD4704G NEC, UPD4704G Datasheet - Page 3

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UPD4704G

Manufacturer Part Number
UPD4704G
Description
EXTENSION 8-BIT UP/DOWN COUNTER CMOS INTEGRATED CIRCUITS
Manufacturer
NEC
Datasheet

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Part Number
Manufacturer
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UPD4704G
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Manufacturer:
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TRUTH TABLE 1 (COUNTER BLOCK)
TRUTH TABLE 2 (LATCH & OUTPUT BLOCKS)
STB
UP
H
H
H
H
L
L
L
DOWN
OE
H
H
H
L
L
L
Output disable (3-state)
Output enable
Data through (count value load)
Data latch (count value retention)
RESET
H
H
L
L
L
L
L
L
CD
Carry
0
to CD
H
L
7
Borrow
H
: H or L
L
Reset
Reset
Down-count
Up-count
Disabled (count undefined)
Disabled (count undefined)
Borrow output when count = 00
Carry output when count = 0FF
Remarks
H
H
: H or L
PD4704
3

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