参数资料
型号: CY22150ZI
厂商: Cypress Semiconductor Corp.
英文描述: One-PLL General-Purpose Flash-Programmable and 2-Wire Serially Programmable Clock Generator
中文描述: 一个锁相环通用闪存可编程和2线串行可编程时钟发生器
文件页数: 8/13页
文件大小: 211K
代理商: CY22150ZI
CY22150
Document #: 38-07104 Rev. *F
Page 8 of 13
Figure 3. Data Frame Architecture
Figure 4. Start and Stop Frame
Figure 5. Frame Format (Device Address, R/W, Register Address, Register Data
SDAT Write
Multiple
Contiguous
Registers
Start Signal
Address
Device
R/W = 0
1-bit
8-bit
Register
Address
(XXH)
1-bit
ACK
ACK
Slave
8-bit
Register
Data
(XXH)
Stop Signal
ACK
Slave
8-bit
Register
Data
(XXH+1)
ACK
Slave
8-bit
Register
Data
(XXH+2)
ACK
Slave
8-bit
Register
Data
(FFH)
ACK
Slave
8-bit
Register
Data
(00H)
ACK
Slave
ACK
Slave
SDAT Read
Multiple
Contiguous
Registers
Start Signal
Address
Device
R/W = 0
1-bit
8-bit
Register
Address
(XXH)
1-bit
ACK
ACK
Slave
7-Bit
Device
Address(XXH)
Stop Signal
1-bit
R/W = 1
8-bit
Register
ACK
8-bit
Register
Data
(XXH+1)
Master
ACK
8-bit
Register
Data
(FFH)
Master
ACK
8-bit
Register
Data
(00H)
Master
ACK
Master
ACK
Master
SDAT
SCLK
START
Transition
to next bit
STOP
SDAT
SCLK
DA6
DA5DA0
R/W ACK
RA7
RA6RA1
RA0
ACK
STOP
START
ACK
D7
D6
D1
D0
+
+
+
+
+
+
Parameter
f
SCLK
Description
Min.
Max.
400
Unit
kHz
μ
s
μ
s
μ
s
ns
ns
ns
ns
μ
s
μ
s
Frequency of SCLK
Start mode time from SDA LOW to SCL LOW
SCLK LOW period
SCLK HIGH period
Data transition to SCLK HIGH
Data hold (SCLK LOW to data transition)
Rise time of SCLK and SDAT
Fall time of SCLK and SDAT
Stop mode time from SCLK HIGH to SDAT HIGH
Stop mode to Start mode
0.6
1.3
0.6
100
0
CLK
LOW
CLK
HIGH
t
SU
t
DH
300
300
0.6
1.3
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