8582C-2 查看數據表（PDF） - NXP Semiconductors.

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8582C-2

256×8-bit CMOS EEPROM with I2C-bus interface

NXP Semiconductors. 

Philips Semiconductors

6. Pinning information

6.1 Pinning

PCF8582C-2

256 × 8-bit CMOS EEPROM with I2C-bus interface

Fig 2. Pin configuration.

A0 1

8 VDD

A1 2

7 PTC

PCF8582C-2

A2 3

6 SCL

VSS 4

5 SDA

MGD928

6.2 Pin description

Table 4:

Symbol

A0

A1

A2

VSS

SDA

SCL

PTC

VDD

Pin description

Pin

1

2

3

4

5

6

7

8

Description

address input 0

address input 1

address input 2

negative supply voltage

serial data input/output (I2C-bus)

serial clock input (I2C-bus)

programming time control output

positive supply voltage

7. Device addressing

Table 5: Device address code

Selection

Device code

Bit

b7[1]

b6

b5

b4

Device

1

0

1

0

[1] The Most Significant Bit (MSB) ‘b7’ is sent first.

Chip Enable

R/W

b3

b2

b1

b0

A2

A1

A0

R/W

A2, A1, A0 are hardware selectable pins.

A system could have up to eight PCF8582C-2 devices on the same I2C-bus,

equivalent to a 16 kbit EEPROM or 8 pages of 256 bytes of memory.

The eight addresses are defined by the state of the A0, A1, A2 inputs (logic level ‘1’

when connected to VDD, logic level ‘0’ when connected to GND). Figure 3 shows the

various address combinations.

9397 750 14222

Product data

Rev. 04 — 25 October 2004

© Koninklijke Philips Electronics N.V. 2004. All rights reserved.

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