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参数资料
| 型号： | 935272364112 |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 256 X 8 EEPROM, 8 I/O, PIA-GENERAL PURPOSE, PDSO20 |
| 封装： | PLASTIC, SOT-163-1, SO-20 |
| 文件页数： | 8/20页 |
| 文件大小： | 125K |
| 代理商： | 935272364112 |
Philips Semiconductors
Product data
PCA9501
8-bit I2C and SMBus I/O port with interrupt,
2-kbit EEPROM and 6 address pins
2002 Sep 27
16
handbook, full pagewidth
SCL
SDA
MBD820
BIT 0
LSB
(R/W)
t
HD;STA
t
SU;DAT
t
HD;DAT
t
VD;DAT
t
SU;STO
t
f
r
t
BUF
t
SU;STA
1 / f
SCL
START
CONDITION
(S)
BIT 7
MSB
(A7)
BIT 6
(A6)
ACKNOWLEDGE
(A)
STOP
CONDITION
(P)
SW00561
PROTOCOL
Figure 21.
POWER-UP TIMING
SYMBOL
PARAMETER
MAX.
UNIT
tPUR1
Power-up to Read Operation
1
ms
tPUW1
Power-up to Write Operation
5
ms
NOTE:
1. tPUR and tPUW are the delays required from the time VCC is stable until the specified operation can be initiated. These parameters are
guaranteed by design.
WRITE CYCLE LIMITS
SYMBOL
PARAMETER
MIN.
TYP. (5)
MAX.
UNIT
tWR1
Write Cycle Time
—
5
10
ms
NOTE:
1. tWR is the maximum time that the device requires to perform the internal write operation.
Write Cycle Timing
SCL
SDA
8th Bit
Word n
ACK
Stop
Condition
Start
Condition
MEMORY
ADDRESS
tWR
SW00560
Figure 22.
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