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SN65512C Datasheet(PDF) 2 Page - Texas Instruments

Part No. SN65512C
Description  VACUUM FLUORESCENT DISPLAY DRIVERS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN65512C Datasheet(HTML) 2 Page - Texas Instruments

   
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SN65512C, SN75512C
VACUUM FLUORESCENT DISPLAY DRIVERS
SLDS054 – D3516, MAY 1990
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
4–2
logic diagram (positive logic)
1D
C1
C2
2D
DATA IN
CLOCK
1D
C1
C2
2D
1D
C1
C2
2D
1D
C1
C2
2D
R11
R12
R2
R1
LC12
LC11
LC2
LC1
Q1
Q2
Q11
Q12
Latches
Shift
Register
SERIAL OUT
STROBE
LATCH
ENABLE
8 Stages
(Q3 thru Q10)
Not Shown
FUNCTION TABLE
CONTROL INPUTS
SHIFT REGISTER
LATCHES
OUTPUTS
FUNCTION
CLOCK
LATCH
ENABLE
STROBE
SHIFT REGISTER
R1 THRU R12
LATCHES
LC1 THRU LC12
SERIAL
Q1 THRU Q12
Load
X
X
Load and shift†
Determined by LATCH
R12
Determined by STROBE
Load
No
X
X
No change
y
ENABLE‡
R12
Determined by STROBE
Latch
X
L
X
As determined above
Stored data
R12
Determined by STROBE
Latch
X
H
X
As determined above
New data
R12
Determined by STROBE
Strobe
X
X
H
As determined above
Determined by LATCH
R12
All L
Strobe
X
X
L
As determined above
y
ENABLE‡
R12
LC1 thru LC12, respectively
H = high level, L = low level, X = irrelevant,
↑ = low-to-high-level transition
† R12 takes on the state of R11, R11 takes on the state of R10, . . . R2 takes on the state of R1, and R1 takes on the state of the data input.
‡ New data enter the latches while LATCH ENABLE is high. These data are stored while LATCH ENABLE is low.


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