參數(shù)資料
型號: CXP85840A
廠商: Sony Corporation
英文描述: CMOS 8-bit Single Chip Microcomputer
中文描述: 的CMOS 8位單片機
文件頁數(shù): 17/22頁
文件大小: 277K
代理商: CXP85840A
– 17 –
CXP85840A/85848A/85856A
(6) I
2
C bus timing
(Ta = –20 to +75°C, V
DD
= 4.5 to 5.5V, Vss = 0V reference)
Item
SCL clock frequency
Bus-free time before starting transfer
Hold time for starting transfer
Clock Low level width
Clock High level width
Setup time for repeated transfers
Data hold time
Data setup time
SDA, SCL rise time
SDA, SCL fall time
Setup time for transfer completion
1
The data hold time should be 300ns or more because the SCL rise time (300ns Max.) is not included in it.
f
SLC
t
BUF
t
HD; STA
t
LOW
t
HIGH
t
SU; STA
t
HD; DAT
t
SU; DAT
t
R
t
F
t
SU; STO
SCL
SDA, SCL
SDA, SCL
SCL
SCL
SDA, SCL
SDA, SCL
SDA, SCL
SDA, SCL
SDA, SCL
SDA, SCL
0
4.7
4.0
4.7
4.0
4.7
0
1
250
4.7
100
1
300
kHz
μs
μs
μs
μs
μs
μs
ns
μs
ns
μs
Symbol
Pins
Conditions
Min.
Max.
Unit
Fig. 9. I
2
C bus transfer timing
P
St
t
SU; STO
t
SU; STA
t
HD; STA
t
SU; DAT
t
HIGH
t
HD; DAT
t
F
t
R
t
LOW
t
HD; STA
S
P
t
BUF
SDA
SCL
Fig. 10. I
2
C bus device recommended circuit
I
2
C
device
I
2
C
device
R
S
R
S
R
S
R
S
R
P
R
P
SDA0
(or SDA1)
SCL0
(or SCL1)
A pull-up resistor (Rp) must be connected to SDA0 (or SDA1) and SCL0 (or SCL1).
The SDA0 (or SDA1) and SCL0 (or SCL1) series resistance (Rs = 300
or less) can be used to reduce the
spike noise caused by CRT flashover.
相關(guān)PDF資料
PDF描述
CXP85848A CMOS 8-bit Single Chip Microcomputer
CXP85856A CMOS 8-bit Single Chip Microcomputer
CXP85856AQ MICROCONTROLLER|8-BIT|SPC700 CPU|CMOS|QFP|64PIN|PLASTIC
CXP85856AS MICROCONTROLLER|8-BIT|SPC700 CPU|CMOS|SDIP|64PIN|PLASTIC
CXP85890A CMOS 8-bit Single Chip Microcomputer
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CXP85840A025Q 制造商:SONY 功能描述:*
CXP85840AQ 制造商:SONY 制造商全稱:Sony Corporation 功能描述:MICROCONTROLLER|8-BIT|SPC700 CPU|CMOS|QFP|64PIN|PLASTIC
CXP85840AS 制造商:SONY 制造商全稱:Sony Corporation 功能描述:MICROCONTROLLER|8-BIT|SPC700 CPU|CMOS|SDIP|64PIN|PLASTIC
CXP85848A 制造商:SONY 制造商全稱:Sony Corporation 功能描述:CMOS 8-bit Single Chip Microcomputer
CXP85848AQ 制造商:SONY 制造商全稱:Sony Corporation 功能描述:MICROCONTROLLER|8-BIT|SPC700 CPU|CMOS|QFP|64PIN|PLASTIC