I
49
DIS LAY DATA
I
I
CARRY
I
ADDRESS LATCH ENABLE
ALE
I
I
CONTROLLER
DISABLE HF
ENABLE
P G
P17
Application block diagram.
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I
I
I
I
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I
P S
ss
TO
NT
RESET
How the result is calculated and the presentation
done
P/4
DB7
P O
P11
P12
P13
o-
B NARY
TO BCD
DECOD.
-c>
7 BCD
D G TS
RESULT
RES ST
BCD TO
SEGMENT
SERIAL
CO NV.
P20
P21
P22
P23
P2A
P2S
P26
P27
XTAL 1
RTAL2
T1
DBO
DB1
D£2
DB3
DBA
DB5
DBS
B NARY
TO BCD
DECOD.
d
a
>
LO BAT
SINGLE STE
MEASURING RATE
R
eady
ENABLE 1 ____________
________ ENABLE 2____________
■ _________ ENABLE 3 ________
SELECT
10- 13 IN UT / OUT UT
----------------------------------------------------- t>o
SELECT DECADE
SELECT DECADE
SELECT QUAD DECADE
SELECT QUAD DECADE
DIS LAY CLOCK
MEASURE ___________
RESET _____________
RESET
♦
IN UT/
OUT UT
SELECTOR
10 D G T
BCD
D V DER
REGISTER A
O BCD
D G TS
IO
REG STER B
10 BCD D G T
CLOCK