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| 型号： | PCA9698DGG,512 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 3/48页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 40B 56TSSOP |
| 产品培训模块： | I²C Bus Fundamentals |
| 特色产品： | NXP - I2C Interface |
| 标准包装： | 35 |
| 接口： | I²C |
| 输入/输出数： | 40 |
| 中断输出： | 是 |
| 频率 - 时钟： | 1MHz |
| 电源电压： | 2.3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 56-TFSOP（0.240"，6.10mm 宽） |
| 供应商设备封装： | 56-TSSOP |
| 包装： | 管件 |
| 包括： | POR |
| 产品目录页面： | 826 (CN2011-ZH PDF) |
| 其它名称： | 568-3241-5 935278614512 PCA9698DGG |
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PCA9698
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 — 3 August 2010
11 of 48
NXP Semiconductors
PCA9698
40-bit Fm+ I2C-bus advanced I/O port with RESET, OE and INT
7.4.1 IP0 to IP4 - Input Port registers
These registers are read-only. They reflect the incoming logic levels of the port pins
regardless of whether the pin is defined as an input or an output by the I/O Configuration
register. If the corresponding Px[y] bit in the PI registers is set to 0, or the inverted
incoming logic levels if the corresponding Px[y] bit in the PI register is set to 1. Writes to
these registers have no effect.
The Polarity Inversion register can invert the logic states of the port pins. The polarity of
the corresponding bit is inverted when Px[y] bit in the PI register is set to 1. The polarity of
the corresponding bit is not inverted when Px[y] bits in the PI register is set to 0.
7.4.2 OP0 to OP4 - Output Port registers
These registers reflect the outgoing logic levels of the pins defined as outputs by the
I/O Configuration register. Bit values in these registers have no effect on pins defined as
inputs. In turn, reads from these registers reflect the values that are in the flip-flops
controlling the output selection, not the actual pin values.
Ox[y] = 0: IOx_y = 0 if IOx_y defined as output (Cx[y] in IOC register = 0).
Ox[y] = 1: IOx_y = 1 if IOx_y defined as output (Cx[y] in IOC register = 0).
Where ‘x’ refers to the bank number (0 to 4); ‘y’ refers to the bit number (0 to 7).
Table 4.
IP0 to IP4 - Input Port registers (address 00h to 04h) bit description
Legend: * default value ‘X’ determined by the externally applied logic level.
Address
Register
Bit
Symbol
Access
Value
Description
00h
IP0
7 to 0
I0[7:0]
R
XXXX XXXX*
Input Port register bank 0
01h
IP1
7 to 0
I1[7:0]
R
XXXX XXXX*
Input Port register bank 1
02h
IP2
7 to 0
I2[7:0]
R
XXXX XXXX*
Input Port register bank 2
03h
IP3
7 to 0
I3[7:0]
R
XXXX XXXX*
Input Port register bank 3
04h
IP4
7 to 0
I4[7:0]
R
XXXX XXXX*
Input Port register bank 4
Table 5.
OP0 to OP4 - Output Port registers (address 08h to 0Ch) bit description
Legend: * default value.
Address
Register
Bit
Symbol
Access
Value
Description
08h
OP0
7 to 0
O0[7:0]
R/W
0000 0000*
Output Port register bank 0
09h
OP1
7 to 0
O1[7:0]
R/W
0000 0000*
Output Port register bank 1
0Ah
OP2
7 to 0
O2[7:0]
R/W
0000 0000*
Output Port register bank 2
0Bh
OP3
7 to 0
O3[7:0]
R/W
0000 0000*
Output Port register bank 3
0Ch
OP4
7 to 0
O4[7:0]
R/W
0000 0000*
Output Port register bank 4
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