BU2506FV ROHM Co. Ltd., BU2506FV Datasheet - Page 3

• Manufacturer Part Number: BU2506FV
• Description: 10bit 8channels , D/a Converter With Output Buffer
• Manufacturer: ROHM Co. Ltd.

●Timing Characteristics（Unless otherwise specified, VCC＝5V, VrefH＝5V, VrefL＝0V, Ta＝25℃）
●Cascade Connection
A cascade connection data output terminal (DO) is available for reducing the design load when the number of channels is
increased.
The DO terminal can be connected directly to the data input terminal (DI) of the next stage. Its effectiveness increases as
the number of channels increases.
The data transition timing is as shown below.
CLK
DI
LD
DO
In a cascade connection, in order to have sufficient data change and clock edge time margins, make the clock line the
shortest.
Reset L pulse width
Clock L pulse width
Clock H pulse width
Clock rise time
Clock fall time
Data setup time
Data hold time
Load setup time
Load hold time
Load H pulse width
Data output delay time
DA output settling time
DA出力
DO出力
RESET
CLK
LD
DI
Parameter
CPU
Data of #1
tRTL
LD
CLK
DI
Symbol
tDCH
tCHD
tCKH
tCHL
tLDC
tLDH
tLDD
tRTL
tCKL
tDO
tCKL
tcr
tcf
tDCH tCHD
tcr
tCKH
MIN.
tDo
50
50
50
20
40
50
50
50
-
-
-
tCHL
tcf
Limits
TYP.
7
DO
LD
CLK
DI
DO
LD
CLK
DI
-
-
-
-
-
-
-
-
-
-
3/8
tLDH
tLDD
MAX.
Data of #2
BU2505FV
BU2505FV
50
90
20
（# 2）
-
-
-
-
-
-
-
-
（# 1）
tLDC
Unit
nS
μS
Judgment level is 80% / 20% of VCC.
CL=100pF
CL≦1000pF, VO:0.5V⇔4.5V .
Until output becomes the final value 1/2LSB
Conditions