P89C660 查看數據表（PDF） - Philips Electronics

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P89C660

80C51 8-bit Flash microcontroller family

Philips Electronics 

Philips Semiconductors

80C51 8-bit Flash microcontroller family

16KB/32KB/64KB ISP/IAP Flash with 512B/1KB/2KB/8KB RAM

Product data

P89C660/P89C662/P89C664/

P89C668

P1.7/SDA

P1.7

INPUT

FILTER

OUTPUT

STAGE

8

S1ADR

ADDRESS REGISTER

COMPARATOR

S1DAT

SHIFT REGISTER

ACK

8

P1.6/SCL

INPUT

FILTER

OUTPUT

STAGE

P1.6

ARBITRATION &

SYNC LOGIC

SERIAL CLOCK

GENERATOR

TIMING

&

CONTROL

LOGIC

TIMER 1

OVERFLOW

S1CON

CONTROL REGISTER

fOSC/4

INTERRUPT

8

STATUS BITS

STATUS

DECODER

S1STA

STATUS REGISTER

8

Figure 3. I2C Bus Serial Interface Block Diagram

su00966

2002 Oct 28

14

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