参数资料
型号: SM8521
厂商: Sharp Corporation
元件分类: DC/DC变换器
英文描述: 1 watt dc-dc converters
中文描述: 1瓦的DC - DC转换器
文件页数: 29/56页
文件大小: 267K
代理商: SM8521
SM8521
- 29 -
P0 to P3 (PIO data register)
Bit 7
P
X
7
P
X
6
0
(x = 0, 1, 2, 3)
NOTE :
In case of reading P0-P3 register on condition that control
register is input state, data of those pins is read. In case of
on condition that control register is output state, data of
register is read.
P0C to P2C (PIO control register)
Bit 7
0
(x = 0, 1, 2)
Bits 7 to 6 :
BIT
00
01
10
11
Bits 5 to 4 :
BIT
00
01
10
11
Bits 3 to 2 :
BIT
00
01
10
11
Bits 1 to 0 :
BIT
00
01
10
11
I/O PORTS
The SM8521 supports four 8-bit I/O ports. Each
port can be selected one out of input, outpit, input
with built-in pull-up resistor and open-drain in each
2-bit.
Internal Bus
Input/output
pins
Data register
I/O control circuit
Control register
Fig. 12 PIO Block Diagram
P
X
5
P
X
4
P
X
3
P
X
2
P
X
1
P
X
0
P
X
C7 P
X
C6 P
X
C5 P
X
C4 P
X
C3 P
X
C2 P
X
C1 P
X
C0
CONTENT
Input
Input (with pull-up resistor)
Output
Output (open-drain)
CONTENT
Input
Input (with pull-up resistor)
Output
Output (open-drain)
CONTENT
Input
Input (with pull-up resistor)
Output
Output (open-drain)
CONTENT
Input
Input (with pull-up resistor)
Output
Output (open-drain)
相关PDF资料
PDF描述
SM8G45 AC POWER CONTROL APPLICATIONS
SM8G45A AC POWER CONTROL APPLICATIONS
SM8J45 AC POWER CONTROL APPLICATIONS
SM8J45A AC POWER CONTROL APPLICATIONS
SM8GZ47 AC POWER CONTROL APPLICATIONS
相关代理商/技术参数
参数描述
SM8530B 制造商:NPC 制造商全称:Nippon Precision Circuits Inc 功能描述:Standard Bus Interface Decoder
SM8577B 制造商:NPC 制造商全称:Nippon Precision Circuits Inc 功能描述:Real-time Clock IC
SM8577BS 制造商:NPC 制造商全称:Nippon Precision Circuits Inc 功能描述:Real-time Clock IC
SM8578 制造商:NPC 制造商全称:Nippon Precision Circuits Inc 功能描述:Real-time Clock IC
SM8578BV 制造商:NPC 制造商全称:Nippon Precision Circuits Inc 功能描述:Real-time Clock IC