參數(shù)資料
型號: P83C524IFB
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-bit microcontrollers
中文描述: 8-BIT, MROM, 24 MHz, MICROCONTROLLER, PQFP44
封裝: 10 X 10 X 1.75 MM, PLASTIC, QFP-44
文件頁數(shù): 58/76頁
文件大小: 400K
代理商: P83C524IFB
1997 Dec 15
58
Philips Semiconductors
Product specification
8-bit microcontrollers
P83C524; P80C528; P83C528
22 I
2
C CHARACTERISTICS (BIT-LEVEL)
Notes
1.
At f
CLK
= 3.5 MHz, this evaluates to 14
×
286 ns = 4
μ
s, i.e. the bit-level I
2
C interface can respond to the I
2
C protocol
for f
CLK
3.5 MHz.
This parameter is determined by the user software, it has to comply with the I
2
C specification.
This value gives the auto-clock pulse length which meets the I
2
C specification for the specified XTAL1 clock
frequency range. Alternatively, the SCL pulse may be timed by software.
Spikes on SDA and SCL lines with a duration of less than 4
×
f
CLK
will be filtered out.
The RISE time is determined by the external bus line capacitance and pull-up resistor, it must be
1
μ
s.
The maximum capacitance on bus lines SDA and SCL is 400 pF.
2.
3.
4.
5.
6.
SYMBOL
PARAMETER
INPUT
OUTPUT
I
2
C SPEC
UNIT
SCL timing
t
HD;STA
t
LOW
t
HIGH
t
RC
t
FC
START condition hold time
SCL LOW time
SCL HIGH time
SCL RISE time
SCL FALL time
14 t
CK
; note 1
16 t
CK
14 t
CK
; note 1
1; note 4
0.3; note 4
note 2
note 2
80 t
CK
; note 3
note 5
0.3; note 6
4.0
4.7
4.0
1.0
0.3
μ
s
μ
s
μ
s
μ
s
μ
s
SDA timing
t
SU;DAT
t
HD;DAT
t
SU;STA
t
SU;STO
t
BUF
t
RD
t
FD
data set-up time
data hold time
repeated START set-up time
STOP condition set
up time
bus free time
SDA RISE time
SDA FALL time
250 ns
0 ns
14 t
CK
; note 1
14 t
CK
; note 1
14 t
CK
; note 1
1; note 4
300 ns; note 4
note 2
note 2
note 2
note 2
note 2
note 5
0.3; note 6
250
0
4.7
4.0
4.7
1.0
0.3
ns
ns
μ
s
μ
s
μ
s
μ
s
μ
s
相關(guān)PDF資料
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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