Table 5. AC ELECTRICAL CHARACTERISTICS VDD
參數(shù)資料
型號: PCA9655EDTR2G
廠商: ON Semiconductor
文件頁數(shù): 17/20頁
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 16B 24-TSSOP
標準包裝: 1
接口: I²C 總線,SM 總線
輸入/輸出數(shù): 16
中斷輸出:
頻率 - 時鐘: 100kHz
電源電壓: 1.65 V ~ 5.5 V
工作溫度: -55°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 24-TSSOP(0.173",4.40mm 寬)
供應商設備封裝: 24-TSSOP
包裝: 標準包裝
其它名稱: PCA9655EDTR2GOSDKR
PCA9655E
http://onsemi.com
6
Table 5. AC ELECTRICAL CHARACTERISTICS VDD = 1.65 V to 5.5 V; TA = 55°C to +125°C, unless otherwise specified.
Symbol
Parameter
Standard
Mode
Fast Mode
Fast Mode +
Unit
Min
Max
Min
Max
Min
Max
fSCL
SCL Clock Frequency
0
0.1
0
0.4
0
1.0
MHz
tBUF
BusFree Time between a STOP and START
Condition
4.7
1.3
0.5
ms
tHD:STA
Hold Time (Repeated) START Condition
4.0
0.6
0.26
ms
tSU:STA
Setup Time for a Repeated START Condition
4.7
0.6
0.26
ms
tSU:STO
Setup Time for STOP Condition
4.0
0.6
0.26
ms
tHD:DAT
Data Hold Time
0
ns
tVD:ACK
Data Valid Acknowledge Time (Note 8)
0.3
3.45
0.1
0.9
0.05
0.45
ms
tVD:DAT
Data Valid Time (Note 9)
300
50
450
ns
tSU:DAT
Data Setup Time
250
100
50
ns
tLOW
LOW Period of SCL
4.7
1.3
0.5
ms
tHIGH
HIGH Period of SCL
4.0
0.6
0.26
ms
tf
Fall Time of SDA and SCL (Notes 11 and 12)
300
20 + 0.1Cb
(Note 10)
300
120
ns
tr
Rise Time of SDA and SCL
1000
20 + 0.1Cb
(Note 10)
300
120
ns
tSP
Pulse Width of Spikes Suppressed by Input Filter
(Note 13)
50
ns
PORT TIMING: CL v 100 pF (See Figures 6, 9 and 10)
tV(Q)
Data Output Valid Time
(VDD = 4.5 V to 5.5 V)
(VDD = 2.3 V to 4.5 V)
(VDD = 1.65 V to 2.3 V)
200
350
550
200
350
550
200
350
550
ns
tSU(D)
Data Input Setup Time
100
ns
tH(D)
Data Input Hold Time
1
ms
INTERRUPT TIMING: CL v 100 pF (See Figures 9 and 10)
tV(INT_N)
Data Valid Time
4
ms
tRST(INT_N)
Reset Delay Time
4
ms
8. tVD:ACK = time for Acknowledgment signal from SCL LOW to SDA (out) LOW.
9. tVD:DAT = minimum time for SDA data out to be valid following SCL LOW.
10.Cb = total capacitance of one bus line in pF.
11. A master device must internally provide a hold time of al least 300 ns for the SDA signal (refer to VIL of the SCL signal) in order to bridge
the undefined region SCL’s falling edge.
12.The maximum tffor the SDA and SCL bus lines is specified at 300 ns. The maximum fall time for the SDA output stage tfis specified at 250 ns.
This allows series protection resistors to be connected between the SDA and the SCL pins and the SDA/SCL bus lines without exceeding
the maximum specified tf.
13.Input filters on the SDA and SCL inputs suppress noise spikes less than 50 ns.
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