參數(shù)資料
型號(hào): ISD5216SERIES
英文描述: Single-Chip Voice Record/Playback Device
中文描述: 單芯片語音記錄/播放設(shè)備
文件頁數(shù): 60/83頁
文件大?。?/td> 758K
代理商: ISD5216SERIES
I5216 SERIES
Advanced Information
PRELIMINARY
Publication Release Date: November 30, 2001
- 60
Revision A1
I
2
C INTERFACE TIMING
STANDARD-MODE
FAST-MODE
PARAMETER
SYMBOL
MIN.
MAX.
MIN.
MAX.
UNIT
SCL clock frequency
f
SCL
0
100
0
400
kHz
Hold time (repeated) START condition.
After this period, the first clock pulse is
generated
t
HD; STA
4.0
-
0.6
-
ns
LOW period of the SCL clock
t
LOW
4.7
-
1.3
-
ns
HIGH period of the SCL clock
t
HIGH
4.0
-
0.6
-
ns
Set-up time for a repeated START
condition
t
SU; STA
4.7
-
0.6
-
ns
Data set-up time
t
SU; DAT
250
-
100
(1)
-
ns
Rise time of both SDA and SCL signals
t
r
-
1000
20 + 0.1C
b
(2)
300
ns
Fall time of both SDA and SCL signals
t
f
-
300
20 + 0.1C
b
(2)
300
ns
Set-up time for STOP condition
t
SU; STO
t
BUF
4.0
-
0.6
-
ns
Bus-free time between a STOP and
START condition
4.7
-
1.3
-
ns
Capacitive load for each bus line
C
b
-
400
-
400
pF
Noise margin at the LOW level for each
connected device (including hysteresis)
V
nL
0.1 V
DD
-
0.1 V
DD
-
V
Noise margin at the HIGH level for each
connected device (including hysteresis)
V
nH
0.2 V
DD
-
0.2 V
DD
-
V
1. A Fast-mode I
2
C-interface device can be used in a Standard-mode I
2
C-interface system, but the
requirement t
SU;DAT
> 250 ns must then be met. This will automatically be the case if the device does
not stretch the LOW period of the SCL signal.
If such a device does stretch the LOW period of the SCL signal, it must output the next data
bit to the SDA line; t
r max
+ t
SU;DAT
= 1000 + 250 = 1250 ns (according to the Standard-mode
I
C -interface specification) before the SCL line is released.
2.
C
b
= total capacitance of one bus line in pF. If mixed with HS mode devices, faster fall-times
are allowed.
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