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U4256BM Datasheet(PDF) 6 Page - TEMIC Semiconductors

Part # U4256BM
Description  Frequency Synthesizer for Radio Tuning
Download  14 Pages
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Manufacturer  TEMIC [TEMIC Semiconductors]
Direct Link  http://www.temic.de
Logo TEMIC - TEMIC Semiconductors

U4256BM Datasheet(HTML) 6 Page - TEMIC Semiconductors

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U4256BM
Rev. A2, 03-Nov-98
Preliminary Information
6 (14)
Timing Information
Parameters
Test Conditions / Pins
Symbol
Min.
Typ.
Max.
Unit
3-wire bus, ENABLE, DATA, CLOCK
Pins 16, 17, 18
Input voltage
HIGH
LOW
VBUS
VBUS
2.0
1.0
V
V
Clock frequency
1.0
MHz
Period of CLK
HIGH
LOW
tH
tL
250
250
ns
ns
Rise time EN, DA, CLK
tr
400
ns
Fall time EN, DA, CLK
tf
100
ns
Set-up time
ts
100
ns
Hold time EN
tHEN
250
ns
Hold time DA
tHDA
0
ns
Bus Timing
tR
tF
tR
tS
tF
tHEN
tR
tS
t
HDA
tF
tH
tL
96 11826
Enable
Data
Clock
Figure 4. Bus timing


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