P83C552EHB 查看數據表（PDF） - Philips Electronics

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P83C552EHB

Single-chip 8-bit microcontroller with 10-bit A/D, capture/compare timer, high-speed outputs, PWM

Philips Electronics 

Philips Semiconductors

Single-chip 8-bit microcontroller with 10-bit A/D,

capture/compare timer, high-speed outputs, PWM

Product data

80C552/83C552

AC ELECTRICAL CHARACTERISTICS (Continued)

SYMBOL

PARAMETER

INPUT

OUTPUT

I2C Interface (Refer to Figure 9)

tHD;STA

tLOW

tHIGH

tRC

tFC

START condition hold time

SCL low time

SCL high time

SCL rise time

SCL fall time

≥ 14 tCLCL

≥ 16 tCLCL

≥ 14 tCLCL

≤ 1 µs

≤ 0.3 µs

> 4.0 µs 1

> 4.7 µs 1

> 4.0 µs 1

–2

< 0.3 µs 3

tSU;DAT1

tSU;DAT2

Data set-up time

SDA set-up time (before rep. START cond.)

≥ 250ns

≥ 250ns

> 20 tCLCL – tRD

> 1 µs 1

tSU;DAT3 SDA set-up time (before STOP cond.)

≥ 250ns

> 8 tCLCL

tHD;DAT

Data hold time

≥ 0ns

> 8 tCLCL – tFC

tSU;STA

Repeated START set-up time

≥ 14 tCLCL

> 4.7 µs 1

tSU;STO STOP condition set-up time

≥ 14 tCLCL

> 4.0 µs 1

tBUF

Bus free time

≥ 14 tCLCL

> 4.7 µs 1

tRD

SDA rise time

≤ 1 µs

–2

tFD

SDA fall time

≤ 0.3 µs

< 0.3 µs 3

NOTES:

1. At 100 kbit/s. At other bit rates this value is inversely proportional to the bit-rate of 100 kbit/s.

2. Determined by the external bus-line capacitance and the external bus-line pull-resistor, this must be < 1 µs.

3. Spikes on the SDA and SCL lines with a duration of less than 3 tCLCL will be filtered out. Maximum capacitance on bus-lines SDA and

SCL = 400 pF.

4. tCLCL = 1/fOSC = one oscillator clock period at pin XTAL1. For 62 ns, 42 ns < tCLCL < 285 ns (16 MHz, 24 MHz > fOSC > 3.5 MHz) the SI01

interface meets the I2C-bus specification for bit-rates up to 100 kbit/s.

2002 Sep 03

15

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