- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄24836 > 935270674112 (NXP SEMICONDUCTORS) 8 I/O, PIA-GENERAL PURPOSE, PDSO16 PDF資料下載
參數(shù)資料
| 型號： | 935270674112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8 I/O, PIA-GENERAL PURPOSE, PDSO16 |
| 封裝： | 3.90 MM, PLASTIC, MS-012, SOT-109-1, SO-16 |
| 文件頁數(shù)： | 2/20頁 |
| 文件大小： | 153K |
| 代理商： | 935270674112 |
Philips Semiconductors
Product data
PCA9557
8-bit I2C and SMBus I/0 port with reset
2002 Dec 13
10
Bus Transactions
Data is transmitted to the PCA9557 registers using Write Byte transfers (see Figures 13 and 14). Data is read from the PCA9557 registers using
Read and Receive Byte transfers (see Figures 15 and 16).
12
SCL
WRITE TO
PORT
DATA OUT
FROM PORT
3
4
567
8
SDA
S0
A
0
1
A2
A1
A0
DATA 1
slave address
data to port
start condition
R/W
acknowledge
from slave
acknowledge
from slave
acknowledge
from slave
tpv
DATA 1 VALID
SW00797
9
1
00
0
00
0
command byte
P
Figure 13. WRITE to output port register
12
SCL
3
4
567
8
SDA
S0
A
0
1
A2
A1
A0
DATA
slave address
data to register
start condition
R/W
acknowledge
from slave
acknowledge
from slave
acknowledge
from slave
SW00798
9
00
0
00
1
command byte
1/0
P
Figure 14. WRITE to I/O configuration or polarity inversion registers
1
A2
A1 A0
0
1
A2
A1
A0
0
S0
A
COMMAND BYTE
acknowledge
from slave
R/W
acknowledge
from slave
A
P
NA
acknowledge
from slave
acknowledge
from master
S
DATA
R/W
first byte
at this moment master-transmitter
becomes master-receiver and
slave-receiver becomes
slave-transmitter
last byte
su01052
no acknowledge
from master
1
slave address
data from register
slave address
Figure 15. READ from register
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 08052C103JA74A | Circular Connector; MIL SPEC:MIL-C-5015; Body Material:Metal; Series:GT; No. of Contacts:16; Connector Shell Size:24; Connecting Termination:Solder; Circular Shell Style:Box Mount Receptacle; Body Style:Straight |
| 935272969118 | SPECIALTY TELECOM CIRCUIT, UUC |
| 935272970005 | SPECIALTY TELECOM CIRCUIT, UUC |
| 935272973005 | SPECIALTY TELECOM CIRCUIT, UUC |
| 935272974118 | SPECIALTY TELECOM CIRCUIT, UUC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 935270713557 | 制造商:NXP Semiconductors 功能描述:SUB ONLY IC CHP |
| 935270792551 | 制造商:NXP Semiconductors 功能描述:IC BUFF DVR TRI-ST 16BIT 56VFBGA |
| 935270792557 | 制造商:NXP Semiconductors 功能描述:IC BUFF DVR TRI-ST 16BIT 56VFBGA |
| 935270793551 | 制造商:NXP Semiconductors 功能描述:IC BUS TRCVR 3-ST 16BIT 56VFBGA |
| 935270793557 | 制造商:NXP Semiconductors 功能描述:IC BUS TRCVR 3-ST 16BIT 56VFBGA |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。