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PD243X 데이터시트(PDF) 6 Page - OSRAM GmbH

부품명 PD243X
상세설명  Lead (Pb) Free Product - RoHS Compliant
PDF  14 Pages
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제조업체  OSRAM [OSRAM GmbH]
홈페이지  http://www.osram.com
Logo OSRAM - OSRAM GmbH

PD243X 데이터시트(HTML) 6 Page - OSRAM GmbH

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PD243X, PD353X, PD443X
2006-01-23
6
Timing Characteristics—Data “Write” Cycle
Notes:
1. Wait 1.0 µs between any Reads or Writes after writing a Control
Word with a Clear (D7=1). Wait 1.0 µs between any Reads or
Writes after Clearing a Control Word with a Clear (D7=0). All
other Reads and Writes can be back to back.
2. All input voltages are V
IL=0.8 V, VIH=2.0 V.
Timing Characteristics—Data “Read” Cycle
3. These waveforms are not edge triggered.
4. Data out voltages are measured with 100 pF on the data bus
and the ability to source = –40 mA and sink=1.6 mA The rise and
fall times are 60 ns. V
OL=0.4 V, VOH=2.4 V.
Switching Specifications (V
CC=4.5 V)
Write Cycle Timing
Para-
meter
Description
Specification Minimum
–40°C
25°C
85°C
Units
T
CLR
(1)
Clear RAM
1.0
1.0
1.0
µs
T
CLRD
(1)
Clear RAM Disable
1.0
1.0
1.0
µs
T
AS
Address Setup
10
10
10
ns
T
CES
Chip Enable Setup
0
0
0
ns
T
RS
Read Enable Setup
10
10
10
ns
T
DS
Data Setup
20
30
50
ns
T
W
Write Pulse
60
70
90
ns
T
AH
Address Hold
20
30
40
ns
T
DH
Data Hold
20
30
40
ns
T
CEH
Chip Enable Hold
0
0
0
ns
T
RH
Read Enable Hold
20
30
40
ns
T
ACC
Total Access
Time = Setup
Time + Write
Time + Hold Time
90
110
140
ns
TDS
TDH
TW
TACC
TAH
TAS
TCEH
TCES
2.0 V
0.8 V
CE0, CE1
A0, A1
RD
2.0 V
0.8 V
2.0 V
0.8 V
2.0 V
0.8 V
D0–D6
2.0 V
0.8 V
TRS
TRH
WR
*
*
*
*
*
Switching Specifications (V
CC=4.5 V)
Read Cycle Timing
Para-
meter
Description
Specification Minimum
–40°C
25°C
85°C
Units
T
AS
Address Setup
0
0
0
ns
T
CES
Chip Enable
0
0
0
ns
T
WS
Write Enable Setup
20
30
40
ns
T
DD
Data Delay Time
100
150
175
ns
T
R
Read Pulse
150
175
200
ns
T
AH
Address Hold
0
0
0
ns
T
DH
Data Hold
0
0
0
ns
T
TRI
Time to Tristate
(Max. time)
30
40
50
ns
T
CEH
Chip Enable Hold
0
0
0
ns
T
WH
Write Enable Hold
30
40
50
ns
T
ACC
Total Access
Time = Setup
Time + Read
Time + Time to
Tristate
200
245
290
ns
T
WAIT
(1)
Wait Time between
Reads
0
0
0
ns
TDD
TR
TAH
TAS
TCEH
TCES
2.0 V
0.8 V
CE0, CE1
A0–A3
TRACC
2.0 V
0.8 V
2.0 V
0.8 V
2.0 V
0.8 V
D0–D6
2.0 V
0.8 V
TWS
TWH
WR
RD
TDH
TRI
*
*
*
*
DATA OUT
*



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