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부품번호 | PCA8581T 기능 |
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기능 | 128 x 8-bit EEPROM with I2C-bus interface | ||
제조업체 | NXP Semiconductors | ||
로고 | |||
전체 20 페이지수
INTEGRATED CIRCUITS
DATA SHEET
PCA8581; PCA8581C
128 × 8-bit EEPROM with I2C-bus
interface
Product specification
Supersedes data of 1996 Aug 19
File under Integrated Circuits, IC12
1997 Apr 02
Philips Semiconductors
128 × 8-bit EEPROM with I2C-bus interface
5 BLOCK DIAGRAM
Product specification
PCA8581; PCA8581C
handbook, full pagewidth
PCA8581
PCA8581C
A0
A1
A2
SCL
SDA
1
2
3
6
5
INPUT
FILTER
TIMER
WORD
ADDRESS
REGISTER
7
I2C BUS
CONTROL
VOLTAGE
MULTIPLIER
ROW
SELECT
MEMORY
CELL
ARRAY
COLUMN
SELECT
MULTIPLEXER
VDD
VSS
TEST
8
4
7
POWER
ON
RESET
SHIFT
REGISTER
8
R/W
CONTROL
MLB887
Fig.1 Block diagram.
6 PINNING
SYMBOL
A0
A1
A2
VSS
SDA
SCL
TEST
PIN
1
2
3
4
5
6
7
VDD
8
DESCRIPTION
hardware address input 0
hardware address input 1
hardware address input 2
negative supply
serial data input/output
serial clock input
test output can be connected to VSS, VDD or left
open-circuit
positive supply
fpage
A0 1
8 VDD
A1 2 PCA8581 7 TEST
A2 3 PCA8581C 6 SCL
VSS 4
5 SDA
MLB888
Fig.2 Pin configuration.
1997 Apr 02
4
4페이지 Philips Semiconductors
128 × 8-bit EEPROM with I2C-bus interface
Product specification
PCA8581; PCA8581C
7.5 I2C-bus protocol
Before any data is transmitted on the I2C-bus, the device which should respond is addressed first. The addressing is
always carried out with the first byte transmitted after the start procedure. The I2C-bus configuration for the different
PCA8581 WRITE and READ cycles is shown in Figs 7, 9 and 10.
handbook, full pagewidth
acknowledgement
from slave
acknowledgement
from slave
acknowledgement
from slave
S SLAVE ADDRESS 0 A X WORD ADDRESS A
R/W don't
care
DATA
AP
WRITING
n bytes
auto increment
memory word address
t WR
MLB889
Fig.7 Master transmits to slave receiver (WRITE) mode.
After the word address, one-to-eight data bytes can be sent. The address is automatically incremented, but the four
highest address bits (row) are internally latched. Therefore all bytes are written in the same row.
An example of writing eight bytes with word address X 0 0 0 0 0 0 0 and six bytes with word address X 0 0 1 0 1 0 1 is
shown in Fig.8.
handbook, full pagewidth
Word Address (1) Row
X0000000
0 12 34 56 78
X0001...
1
X0010101
2 45 6
123
X0011...
3
(1) X = don’t care.
1997 Apr 02
column 0 1 2 3 4 5 6 7
MLB890
Fig.8 Writing eight and six bytes with different word addresses.
7
7페이지 | |||
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
PCA8581 | 128 x 8-bit EEPROM with I2C-bus interface | NXP Semiconductors |
PCA8581 | 128 x 8-bit EEPROM with I2C-bus interface | NXP Semiconductors |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |