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HCMS-29X5 Datasheet, PDF (7/16 Pages) Agilent(Hewlett-Packard) – High Performance CMOS 5 x 7 Alphanumeric Displays
7
AC Timing Characteristics Over Temperature Range (-40°C to +85°C)
Timing
Diagram
Ref.
Number
1
2
3
4
5
6
7
8
9
10
11
12
Description
Register Select Setup Time to
Chip Enable
Register Select Hold Time to
Chip Enable
Rising Clock Edge to Falling
Chip Enable Edge
Chip Enable Setup Time to
Rising Clock Edge
Chip Enable Hold Time to
Rising Clock Edge
Data Setup Time to Rising
Clock Edge
Data Hold Time after Rising
Clock Edge
Rising Clock Edge to DOUT[1]
Propagation Delay DIN to DOUT
Simultaneous Mode for
one IC[1,2]
CE Falling Edge to DOUT Valid
Clock High Time
Clock Low Time
Reset Low Time
Clock Frequency
Internal Display Oscillator
Frequency
Internal Refresh Frequency
External Display Oscillator
Frequency
Prescaler = 1
Prescaler = 8
Symbol
trss
4.5 V < VLOGIC <5.5 V
Min.
Max.
10
trsh
10
tclkce
20
tces
35
tceh
20
tds
10
tdh
10
tdout
tdoutp
10
40
18
VLOGIC = 3 V
Min. Max.
10
10
20
55
20
10
10
10
65
30
tcedo
tclkh
tclkl
trstl
Fcyc
Finosc
Frf
Fexosc
25
80
80
50
5
80
210
150
410
45
100
100
50
4
80
210
150
400
51.2
1000
410
8000
51.2 1000
410
8000
Notes:
1. Timing specifications increase 0.3 ns per pf of capacitive loading above 15 pF.
2. This parameter is valid for Simultaneous Mode data entry of the Control Register.
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
KHz
Hz
KHz
KHz